‘Green’ natural ventilation from SE Controls at new King’s Cross Central development

The London Borough of Camden’s new multi-storey office and leisure complex within the 67 acre King’s Cross Central development, is using a highly energy efficient natural ventilation system from SE Controls to maintain a comfortable indoor environment while contributing to the building’s BREEAM outstanding rating.

Working with contractors, Kier Construction, as executive architects, Weedon developed the original design prepared by Bennett Associates for Camden Council’s new administrative HQ and customer services contact centre. Located at Five Pancras Square, the the 14-storey building not only provides 150,000 sq.ft of floor space but also incorporates a leisure centre, swimming pool, public library and café.

By using a combination of active and passive design features to obtain very low carbon emissions, such as low glazing ratios and energy efficient ventilation, the building achieves the highest standards of environmental sustainability for a major office building and is on course to reach the highest ever BREEAM score.

To maintain precise energy efficient control over the building’s indoor air quality and maintain a comfortable working environment, SE Controls supplied, installed and commissioned a natural ventilation system that fully automates and controls the opening of windows on the North and South elevations, as well as the main atrium space.

A total of 204 SCCO 24 30 concealed tandem and single chain actuators are installed on Schüco AWS 102 SK glazed projected top hung vents, which are controlled by 68 NVLogiQ 6Amp power supply units (PSUs) and actuated by the building’s central BMS, which also triggers window opening and closing for night purging.

Within the North atrium, SE Controls also installed 12 SECO N 24 40 twin chain actuators and a 30 Amp PSU panel, incorporating a maintenance key-switch and linked to the BMS, to provide additional control over ventilation, indoor air quality and building energy efficiency.

SE Controls’ Commercial Director, Martin Oates, explained: “With the continued move towards greater energy efficiency and sustainable building design, highly efficient natural ventilation systems, such as that incorporated within Five Pancras Square are delivering significant performance and running cost benefits to building owners, architect and occupants:

He added: “In addition, the level of flexibility and precise environmental control they provide via advanced sensors and actuation systems enables indoor air quality parameters, such as carbon dioxide and temperature levels to be managed highly efficiently, allowing a comfortable and stimulating environment for staff and visitors to be maintained.”

SE Controls specialises in the design, project management and installation of advanced smoke ventilation and natural ventilation solutions to meet the needs of architects, contractors, building services engineers and facilities managers worldwide. Further information on SE Controls’ products, solutions and projects can be obtained by visiting www.secontrols.com or calling

 +44 (0) 1543 443060.

Natural ventilation from SE Controls for award winning Hong Kong Science Park

Phases 3a and 3b of the extensive Hong Kong Science Park development, which won the Grand Award at the international ‘Green Building Awards’ in November 2014, are using more than 2000 window actuators from SE Controls to manage indoor air quality and provide natural ventilation to both of the new buildings.

Designed by architects, Simon Kwan & Associates and constructed by main contractor, Gammon Construction, the new buildings were conceived to be carbon neutral over their lifetime. To meet this goal a range of sustainable technologies and innovative energy saving solutions are incorporated, including a low energy hybrid natural ventilation system, where air conditioning is provided on a ‘pay for use’ basis to help reduce energy consumption.

As the 8 storey buildings use extensive glazed facades, they are orientate north-south to minimise solar gain and windows are automated using 1000 SE Controls SECO N 24 40 compact single chain actuators on each building, which are linked to the BMS and control the single sided, double opening natural ventilation system.

By using double opening window units with a high and low apertures incorporated in the design, warm air is vented through the top and cooler fresh air enters through the lower vent, which provides adequate ventilation to a room depth of 2.5 times the height of the window opening.

Manual opening of the windows is also incorporated into every floor, so that individual units can be opened or closed by the buildings’ occupants, when external weather conditions permit, to provide good indoor air quality and thermal comfort.

Frank Leung, Project Manager with SE Controls’ Asia Pacific operation in Hong Kong, explained: “Natural ventilation provides a highly energy efficient method of reducing costs and environmental impact. The innovative and holistic approach to sustainability that has been taken with the new Hong Kong Science Park buildings has shown what can be achieved with innovative systems and an integrated approach to energy management and carbon reductions and we’re delighted to have contributed to its award winning status.”

SE Controls specialises in the design, project management and installation of advanced smoke ventilation and natural ventilation solutions to meet the needs of architects, contractors, building services engineers and facilities managers worldwide. Further information on SE Controls’ products, solutions and projects can be obtained by visiting www.secontrols.com or calling

 +44 (0) 1543 443060.

SE Controls invests in the future with five key management appointments

International smoke and naturalventilation systems specialist, SE Controls, has made five key management appointments to reinforce and expand its capabilities in core parts the business, including ventilation systems control and maintenance, fire engineering, project management and business development.

The new members of the management team are all highly experienced in their respective disciplines, each having worked for well over 20 years at a senior level within the building, construction and control systems industries with a number of UK and international companies.

Three of the new appointments, David Furneau, Stuart Coote and Nelson Godinho join from natural and powered smoke ventilation company, Airvent, taking up new roles within SE Controls as Project Manager, Business Development Manager, and Fire Engineer, respectively.

In addition to his time at Airvent, David has a long career in smoke control and project management having also worked for Colt International and GEC, while Stuart’s successful career in sales and business development in the engineering, electronics and construction industries includes periods with Colt International, and SMC Pneumatics.

Prior to joining Airvent as a fire engineer consultant in 2008, Nelson was a contracts engineer for Alstom South Africa, where he was directly involved in the design and management of a range of smoke ventilation and control contracts. At SE Controls, his role is focused on maintaining design and legislative standards across the smoke ventilation systems range, as well as liaising with fire engineering consultancies and specialists on relevant projects.

Simon North joins SE Controls as Service and Maintenance Division Manager from Honeywell Building Solutions, where he was responsible for energy and cost efficient life safety and natural ventilation solutions, while Paul Hunt takes up his post as Supply & Distribution Manager from Securistyle, part of the Assa Abloy Group, having also previously worked for the Newman Tonks Group.

SE Controls’ Managing Director, Will Perkins, explained: “We are constantly developing and growing our business in all the sectors and countries in which we operate through the design and installation of excellent solutions delivered by outstanding people. With these five key appointments we have not only increased our skills and experience base, but also created an even stronger platform for further development in key aspects of our business from customer service and systems maintenance through to product design and market development. “

SE Controls specialises in the design, project management and installation of advanced smoke ventilation and natural ventilation solutions to meet the needs of architects, contractors, building services engineers and facilities managers worldwide. Further information on SE Controls’ products, solutions and projects can be obtained by visiting www.secontrols.com or calling

 +44 (0) 1543 443060.

Fire safety and comfort cooling from SE Controls for new London apartment development

A six-storey apartment development in North London is using an innovative smoke control system from SE Controls to not only provide smoke-free escape routes in the event of a fire but also ensure that day-to-day temperatures in communal areas and corridors are kept at comfortable levels for residents.

The Notting Hill Housing Group’s 108 home development at Micawber Street in Hackney was handled by Ardmore Construction, which included the demolition of existing buildings and the construction of the new residential block, which also incorporates more than 2,500 m² of commercial floor space.

Initially, the building was designed with a mechanical ventilation system and a separate dedicated environmental shaft to help cool the building and address the overheating effect in multi-storey buildings, caused as a by-product of routing heating distribution pipework in building voids to optimise space.

SE Controls was invited to evaluate this system by conducting a thermal modelling analysis on the building and the results showed that it provided negligible cooling benefit, reducing temperatures by just one degree Celsius on only a few days in the year.

Working closely with the design team and Ardmore Construction, SE Controls engineered a combined smoke control and environmental solution, based on its SHEVTEC® system, which uses the existing smoke shafts to provide significant thermal performance improvements and enabled major cost savings to be made on the project.

SE Controls incorporated additional automatic opening roof vents and lobby vents into the design, allowing the smoke shaft is to be utilised as a fresh air natural ventilation system, which enables the lobby and corridors to be cooled and avoid overheating. This is achieved by the use of 0.5 m² permanently open louvres at roof level and within the stairwell, while also utilising the automatic smoke dampers on each floor to vent heat into the smoke shaft. Larger automatically opening roof vents, dedicated to the smoke ventilation system, were also installed and enable the natural ventilation system to be over-ridden automatically in the event of a fire.

In normal day-to-day operation, the natural ventilation design allows air to enter through the lobby doors, which are held open by electro-magnetic devices and flow across the lobby before being exhausted through the roof vents, with the lobby temperature being controlled by a tamper proof thermostat.

If a fire should occur, the lobby doors close automatically along with all the smoke dampers, except the one located on the fire floor. This allows smoke to be drawn from the corridor, through the smoke shaft and away from the stairwell to ensure a smoke free escape route is maintained.

The entire system is controlled by networking the smoke ventilation system’s smoke dampers on each floor with SE Controls’ OS2 controllers incorporating OS link network cards. In addition, the system also incorporates an SE Controls NVLogiQ room controller in the fist floor lobby core to monitor and log the system’s performance for future analysis and tuning.

Dr Chris Iddon, SE Controls’ Design Manager, explained: “Corridor and building overheating, particularly in multi-story residential projects is a key issue, as buildings become more airtight and the location of heating pipework in communal areas creates potentially uncomfortable levels of thermal gain, which can reach well in excess of 30 degrees C. In order to determine the most effective methods and provide a solution to this problem, we have carried out extensive studies and dynamic modelling of various ventilation scenarios, which show that natural ventilation is an effective solution to mitigate overheating risk.”

He added: “Also, dedicated cooling systems wouldn’t necessarily be considered for circulation spaces due to plant, installation and running costs for what are essentially non-profitable spaces. As smoke control systems are already a legal requirement within these spaces, our expertise can be used to adapt them to address both smoke and natural ventilation needs in a single, more economical solution. In addition, it can also be retro-installed to buildings with a smoke control system that are experiencing overheating issues with minimal disruption.”

SE Controls specialises in the design, project management and installation of advanced smoke ventilation and natural ventilation solutions to meet the needs of architects, contractors, building services engineers and facilities managers worldwide. Further information on SE Controls’ products, solutions and projects can be obtained by visiting www.secontrols.com or calling

 +44 (0) 1543 443060.

Climate change, hospitals and patient well-being

Dr. Chris Iddon of SE Controls

Comment on hospital overheating from The Climate Change Commission report

The recently reported issue of climate change causing overheating in hospitals with an associated increase in related deaths, not only highlights the risk to patient health from high temperatures and inadequate ventilation, but also questions current thinking on building design.

According to findings from forthcoming research by Cambridge University, headed by Professor Alan Short, around 90% of UK hospital wards are of a design type that makes them susceptible to overheating.

Extracts from the report released by the Climate Change Commission, led by Lord Krebs, indicate that building design and construction are key contributory factors to the overheating and patient health issue. In addition, the Commission has already suggested that the retro-fitting of air-conditioning plant would be uneconomic, so the immediate focus is already centred on cost effective and energy efficient measures of addressing the problem, such as natural ventilation.

While hospital overheating can be readily managed with natural ventilation solutions, the additional benefits, particularly in hospital wards, is that it can also reduce the build up of pathogens, viruses and associated infections by encouraging air movement and ‘flushing’ stale air from the building. Independent research undertaken by Dr. Cath Noakes of Leeds University shows that when windows are closed to reduce heat losses and energy costs, there is an increased risk of infection due to a four-fold increase in airborne pathogens.

Although air quality in critical health and clinical areas of hospitals needs to be of the highest standard, these principles, in many instances, have been compromised in other parts of hospital design. In pre-operation, recovery and general wards, the opportunity for ventilation is often limited to a 100mm wide strip of open window - a limit governed by essential risk directives to protect patients from harm and provide a safe environment.

However, simple modifications could readily be implemented to the ventilation solution, such as high-level vents or window opening, which would to not only maintain patient safety, but also provide adequate ventilation to manage temperatures and improve indoor airquality.

When the lack of cooling is linked to other building design issues, such as south facing glazing, low ceilings, thin walls and the cumulative heat build up from multi-storey structures, there will be and inevitable impact on hospital temperatures

Temperature data research and analysis that I have undertaken with Professor Kevin Lomas, as part of the wider Cambridge University team lead by Professor Short, reveals that in numerous hospital wards across the UK there are number of key factors influencing overheating risk. The work has not only highlighted the resilience of traditional, heavyweight ‘Nightingale wards’ to overheating, but also indicated that solar gain is the key cause of internal temperature increase.

Alongside improved ventilation and increased air movement through carefully planned vents to maintain patient safety, the introduction of measures to limit heat gain, such as the deployment of external shading devices will help reduce overheating risk.

Hospital overheating is a very real issue and this report highlights that most are not only incapable of dealing with any predicted gradual increase in temperatures that may result from climate change, but are also likely to be susceptible to heatwaves.

The links between building design practice and how regulations will need to evolve to manage overheating and assist infection control are likely to be a key outcomes from the research, which will impact all aspects of architecture and construction.

While some retro-fitted solutions can provide effective answers to overheating, the time to review building design standards, specifications and regulations, particularly for future hospital construction projects, is probably already here.

SE Controls specialises in the design, project management and installation of advanced smoke ventilation and natural ventilation solutions to meet the needs of architects, contractors, building services engineers and facilities managers worldwide. Further information on SE Controls’ products, solutions and projects can be obtained by visiting www.secontrols.com or calling

+44 (0)1543 443060.

Innovative natural ventilation from SE Controls helps keep pupils alert

A new £2 million science centre at Moreton Hall School in Oswestry, is using an advanced NVLogiQ naturalventilation monitoring and control solution from SE Controls to maintain classroom indoor air quality while providing a stimulating and comfortable environment for pupils.

Founded more than 100 years ago, Moreton Hall is one of the UK’s highest achieving independent schools, providing education for girls from age 3 to 18 and boys from 3 to 11, together with accommodation and facilities for boarding.

The new two-storey science building provides high quality teaching laboratories for the school’s junior science, GCSE and A level students and was designed by Shrewsbury based architects, Baart Harries Newall who were keen to ensure that the building’s indoor air quality was maintained within national standards and its energy consumption was minimised.

To achieve the designer’s objectives, SE Controls worked closely with the architects and main contractors, Jones Brothers Weston Rhyn, to develop an assisted natural ventilation solution. Using compact NVLogiQ room controllers linked to automatic opening windows and a low energy cross flow fan in each of the eight lab classrooms, the system manages ventilation as well as the operation of radiators to provide a fully integrated low energy system.

The NVLogiQ room controllers constantly monitor carbon dioxide (CO₂) levels in each classroom alongside indoor air temperature and relative humidity, as well as outside temperature, wind and rain via external sensors. Each NVLogiQ unit also incorporates an integral data logger to allow the recording and analysis of all key aspects of the room environment.

The sophisticated monitoring and control algorithm used within the compact NVLogiQ system was developed in conjunction with Loughborough University’s School of Civil and Building Engineering to ensure indoor CO₂ levels and temperatures are precisely controlled while minimising building energy losses.

In addition to the eight NVLogiQ controllers and PSUs, 18 SECO N 24 40 400N twin chain compact actuators were also installed by SE Controls together with PIR finger trap sensors and all the appropriate cabling to control the automatic opening of windows and the small cross flow fans in each lab.

During normal operation, as CO₂ levels increase within each individual science lab, the NVLogiQ controller triggers SE Controls’ SECO N 24 40 compact chain actuators to begin the incremental opening of the windows to allow fresh air to enter the classroom. Simultaneously, small dampers located on the wall opposite the windows are signalled to open and the low energy fans start to draw air from the room to stimulate cross flow and aid ventilation.

Dr. Chris Iddon, SE Controls’ Design Manager, explained: “There are already a significant number of high quality studies that have identified a clear link between increased internal CO₂ levels and a reduction in the ability of students to learn and perform optimally.”

He added: “Post occupancy monitoring of the Moreton Hall classroom environment has shown excellent indoor air quality proving that the design is an example of how having a clearly defined, controlled and executed ventilation strategy can maintain a high quality and stimulating classroom environment for students. Using NVlogiQ enables excellent on demand ventilation whilst minimising heating energy demand.”  

SE Controls specialises in the design, project management and installation of advanced smoke ventilation and natural ventilation solutions to meet the needs of architects, contractors, building services engineers and facilities managers worldwide. Further information on SE Controls’ products, solutions and projects can be obtained by visiting www.secontrols.com or calling

 +44 (0) 1543 443060.

SE Controls Provides a Breath of Fresh Air for Jubilee House

Indoor air quality at a new £3 million energy efficient office development for the Diocese of Southwell & Nottingham, is being monitored and controlled by an advanced NVLogiQ natural ventilation system from international smoke and natural ventilation specialist, SE Controls.

                               

The new 1290m² Jubilee House building was designed by Nottingham based, Maber Associates and provides the diocese with a mission centre, conference facilities and a new administration centre for approximately 50 staff who were previously located in the adjacent Grade II listed Dunham House.

The BREEAM Excellent rated building incorporates a number of energy saving features including high levels of insulation and natural daylight alongside low energy light fittings and SE Controls’ efficient natural ventilation system, which monitors, manages and controls carbon dioxide (CO₂) levels and temperature to maintain a comfortable indoor environment.

The adaptive natural ventilation solution developed, installed and commissioned by SE Controls uses 26 of its innovative NVLogiQ controllers, which constantly monitor the air quality in 24 separate zones. This provides a highly versatile system that not only allows the indoor air quality and ventilation to be managed locally in each zone, but every NVLogiQ unit is also linked together as a networked building solution.

Depending on the level of CO₂ present in each zone, alongside information about temperature and humidity, each NVLoqiQ controller signals a series of dedicated NVLogiQ PSU (power supply units) to automatically open windows and rooflight vents, allowing stale hot air to be replaced with cooler fresh air using the thermal stacking effect.

The sophisticated monitoring and control algorithms used in the NVLogiQ controller were developed in conjunction Loughborough University’s Building Energy Research Group and are designed to not only provide highly accurate indoor air quality management and ventilation, but also minimise energy losses from the building.

Every compact NVLogiQ controller, which measures 160mm x 105mm, also incorporates a data logger, which allows the indoor air quality, building performance and ventilation strategy to be constantly recorded for analysis, enabling the operational parameters for each zone in Jubilee House to be tuned to meet specific environment needs.

In addition to the NVLogiQ controllers and PSUs, SE Controls also provided 50 SECO N 24 40 compact chain actuators to precisely control the opening and closing of the building’s windows and rooflight vents, which are also linked to external temperature, wind and rain sensors.

In the event of rain, the system automatically closes all rooflights fully and reduces the window opening to 10%, yet authorised personnel can also adjust the individual ventilation strategy for each zone directly from the front panel of each NVLogiQ controller. A temporary over-ride facility is also available from the front panel, which allows a zone’s system to be controlled manually.

SE Controls project leader on Jubilee House, Majeed Mohammed, explained: “NVLogiQ is an ideal solution for Jubilee House as it provides optimised indoor air quality, localised monitoring and control in 24 zones and constant real time data logging to enable the building performance to be monitored and tailored.”

He added: “Ultimately, however, the natural ventilation system is about ensuring the building’s occupants have a comfortable working environment while minimising the building’s energy consumption. This solution not only meets these requirements, but also provides a level of adaptability and control that is often difficult to achieve using alternative methods.”

  

SE Controls specialises in the design, project management and installation of advanced smoke ventilation and natural ventilation solutions to meet the needs of architects, contractors, building services engineers and facilities managers worldwide. Further information on SE Controls’ products, solutions and projects can be obtained by visiting www.secontrols.com or calling

 +44 (0) 1543 443060.

MP, MICHAEL FABRICANT OPENS SE CONTROLS’ NEW TECHNICAL INNOVATION CENTRE

Lichfield’s Member of Parliament, Michael Fabricant, today officially named and opened the new technical innovation centre as part of a business and industry focused visit to one of the region’s fastest growing businesses, SE Controls.

The 21,500 sq.ft (2000 sq.mtr) ‘Hood innovation Centre’ is named posthumously in honour of the company’s former Head of R&D, Chris Hood, who played a pivotal role in developing SE Controls’ smoke and natural ventilation system products, which have helped the company grow by more than 35% since 2010 and create around 25 new jobs over the past two years.

“Product development and technical innovation are essential facets of our business and helps ensure that we provide the best and most effective solutions possible. This not only helps us maintain a strong competitive advantage, but is also vitally important when designing and manufacturing life critical smoke ventilation systems,” explained SE Controls’ Managing Director, Will Perkins.

He added: “Chris Hood was a true innovator and was instrumental in many of the products, systems and solutions that we offer today, so it’s very fitting that his legacy is recognised and acknowledged with the dedication of our new technical innovation centre in his name.”

SE Controls specialises in the design, project management and installation of advanced smoke ventilation and natural ventilation solutions to meet the needs of architects, contractors, building services engineers and facilities managers worldwide. Further information on SE Controls’ products, solutions and projects can be obtained by visiting www.secontrols.com or calling +44 (0) 1543 443060.

SE Controls helps create a stimulating learning environment at Passmores Academy

Passmores Academy in Harlow is using a natural ventilation system from leading smoke and natural ventilation specialist, SE Controls, to provide a comfortable and stimulating learning environment for pupils while helping to reduce the school’s carbon footprint.

Designed by Jestico & Whiles and constructed by Wilmott Dixon, the £23 million school provides places for 1200 students and uses an innovative design where five arms radiate from a 2.5 storey elliptical atrium ‘hub’, allowing access to the flexible teaching facilities and recreation areas from the common central area.

A range of low impact design features and sustainable technologies have been incorporated in the BREEAM ‘Very Good’ rated school, including solar shading, biomass boilers and energy efficient glazing together with the use of a natural ventilation strategy to improve and mange indoor air quality while reducing the need for mechanical cooling.

To provide the level of control and flexibility required for the school’s natural ventilation system to operate effectively within the pre-defined set points, SE Controls supplied and installed 7 OS2 control panels to operate the rooflights, atrium louvres and entrance screens.

In addition, the company also supplied and installed the rooflight and window actuators through specialist glazing contractor, English Architectural Glazing and were responsible for commissioning the complete natural ventilation system, which is interfaced with the school’s building management and fire safety system.

SE Controls’ Project Manager, Darren Wainwright, explained: “Indoor air quality in schools is a vital consideration as it not only manages the temperature within the building, but more importantly, the level of carbon dioxide present, which has been proven to reduce learning ability if it exceeds pre-defined national guidelines. Even the classrooms have CO₂ monitors fitted so that the level can be monitored and windows can be manually opened, if required.”

He added: “By incorporating natural ventilation and linking our control panels to the BMS, Passmores Academy can not only ensure that the air quality and environment is effectively managed but also that the energy costs are kept in check.”   

SE Controls specialises in the design, project management and installation of advanced smoke ventilation and natural ventilation solutions to meet the needs of architects, contractors, building services engineers and facilities managers worldwide. Further information on SE Controls’ products, solutions and projects can be obtained by visiting www.secontrols.com or calling

+44 (0) 1543 443060.

Precision Ventilation Control for Sheffield University NAMRC

Precision window actuators from SE Controls are being used as part of an energy efficient natural ventilation system at Sheffield University’s Nuclear Advanced Manufacturing Research Centre (NAMRC) in Rotherham, to help maintain a comfortable environment for researchers and staff.

Work at the NAMRC focuses specifically on innovative research into metals and manufacturing engineering, rather than radioactive research and the new BREEAM Excellent rated building, which was designed by Bond Bryan Architects, is based around an open plan 5,000 m² workshop that incorporates cutting edge manufacturing equipment and facilities.

As the building already employs low energy and renewable initiatives, such as 320kW ground source heat pumps and a 900kW wind turbine, the use of natural ventilation was an ideal solution, as the temperature and air quality can be maintained within clearly defined set points while minimising the need for additional mechanical cooling.

To provide the high degree of control required, SE Controls, supplied, installed and commissioned a range of chain actuators, which are linked to the NAMRC building management system and are used to control the operation of the high and low level vents.

Twenty TGCO 24 15 actuators with a 350mm stroke length were installed on the building’s high level exhaust vents, while the need to protect against finger entrapment on the low level louvres prompted the selection of eighteen SE Controls’ TGCO 24 20 ‘Easi-Drive’ compact actuators each with 160mm stroke length.

SE Controls’ Project Manager, Darren Wainwright, explained: “It is absolutely vital that the natural ventilation strategy and system perform as designed to allow the right amount of fresh air to enter the building while ensuring that heat energy is not lost unnecessarily during the process. By using precision actuators to provide incremental operation of the system’s vents and louvres, it helps ensure that required performance is within the specified design parameters.”

SE Controls specialises in the design, project management and installation of advanced smoke ventilation and natural ventilation solutions to meet the needs of architects, contractors, building services engineers and facilities managers worldwide. Further information on SE Controls’ products, solutions and projects can be obtained by visiting www.secontrols.com or calling

+44 (0) 1543 443060.

SE Controls enhances fire safety and comfort at flagship apartment development

Berkeley Homes’ flagship Woodberry Park apartment development in North London is using an advanced smoke and natural ventilation system from SE Controls to not only provide protection for residents in the event of a fire, but to also create a better environment by actively managing any excessive heat build up in corridors.

Located on Seven Sisters Road, Woodberry Park is part of the innovative Woodberry Down regeneration programme being undertaken by the London Borough of Hackney, Genesis Housing and Berkeley Homes, which will eventually create almost 4,700 homes, combining social and affordable housing with private residential apartments.

SE Controls was commissioned to design and install a SHEVTEC® mechanical extraction smoke ventilation systems within two separate low rise private residential blocks within Woodberry Park, which provide a total of 117 luxury apartments.

In addition to smoke ventilation, a key part of SE Controls’ project specification and design brief was that the system should also incorporate an ‘environmental ventilation’ mode, enabling it to monitor heat build up in communal corridors and lobbies while also managing the operation of automatic vents to reduce the temperature and introduce fresh, cooler air into the building.

SE Controls’ Project Leader on Woodberry Park, David Sawyer, explained: “Heat build up in corridors with multi-storey apartment buildings can become an issue as many developments use efficient distributed heating systems where pipework runs along the corridors to each apartment.”

He added: “The cumulative thermal gain generated by the pipework can make corridors, lobbies and communal spaces uncomfortably hot, which is why we originally developed the environmental ventilation mode as an integral part of our smoke ventilation system capabilities, to help developers overcome this issue and provide a better environment for residents.”

The comprehensive SHEVTEC smokeventilation and environmental ventilation system installed in the two residential blocks, which have between four and seven floors, includes both an extract shaft and air inlet shaft in each the building’s two cores, with smoke dampers fitted at each level.

In normal smoke ventilation mode, if a fire is detected by building’s smoke sensors, the SHEVTEC roof mounted fan sets will start, while staircase vents and smoke vents located on the fire floor will open, enabling up to 5m³ per second of smoke to be drawn through the extraction shaft and provide a smoke free escape route for residents.

Tamper proof manual control points are installed throughout the buildings and separate fireman’s control points are also incorporated as part of the system, enabling fire service personnel to manually control the operation of every damper and staircase vent as well as the smoke and heat exhaust fans.

In addition to the system’s fire safety role, it is also designed to operate in a ‘natural environmental ventilation’ mode, which allows temperatures in corridors, lobbies and communal areas to be maintained at comfortable levels and avoid the heat build up caused by the under floor heating pipework feeding individual apartments.

Each lobby that is served by the smoke shafts is fitted with a ceiling mounted temperature sensor, which triggers the roof mounted environmental ventilation fan to run when the temperature exceeds the pre-determined set point to vent the warm air and replace it with cooler air from outside.

As with the smoke ventilation operation, only the dampers on the over-temperature floor will open and once the temperature has reduced sufficiently, they will close again and the ventilation fan will switch off. External temperature sensors are also installed within the system, which ensures that the environmental ventilation system will not operate if the outside temperature is higher than that within the corridors.

SE Controls specialises in the design, project management and installation of advanced smoke ventilation and natural ventilation solutions to meet the needs of architects, contractors, building services engineers and facilities managers worldwide. Further information on SE Controls’ products, solutions and projects can be obtained by visiting www.secontrols.com or calling +44 (0)1543 443060.

Charity fundraising by SE Controls raises over £6,500 for St Giles Hospice

For the past year, staff at Midlands based smoke and natural ventilation specialist, SE Controls, have been raising funds totalling £6,504 for local charity St Giles Hospice, which provides specialist care for patients with cancer and other serious illnesses.

The SE Controls staff found a variety of fun ways to raise money including fancy dress days, unwanted item sales and the hotly contested annual SE Controls cake baking competition that saw the Operations Director triumph for the second year in a row with his famous lemon cake.

The fund raisers joined up with Walsall Rugby Club to host a family fun day with a rugby match and balloon release. The Walsall Vets gained victory over the Bloxwich team and whilst age and athleticism wasn’t on their side the weight advantage meant they won every scrum. The balloon release was a great success with the winning balloon making it all the way to The Netherlands.

“Being able to help support a great charity like St Giles is always rewarding” Mark Soleil, who recently helped present the cheque to head of fund raising for St Giles Helen Relihan, who commented “It really is a fantastic amount and the money raised will go a long way to helping support those who need it most”.

SE Controls specialises in the design, project management and installation of advanced smoke ventilation and natural ventilation solutions to meet the needs of architects, contractors, building services engineers and facilities managers worldwide. Further information on SE Controls’ products, solutions and projects can be obtained by visiting www.secontrols.com or calling +44 (0) 1543 443060.

A fresh solution from SE Controls for Birmingham City Council offices

Birmingham City Council’s award winning office development at Woodcock Street is using an advanced natural ventilation solution from SE Controls to create a comfortable environment for staff and visitors while enhancing the building’s sustainability credentials by reducing energy consumption.

Designed by Associated Architects, the £38 million five-storey building provides a flexible working environment for around 3,000 employees and forms part of the local authority’s plans to rationalise its office portfolio and generate more an £200 million of savings by reducing its occupancy of leased buildings.

A key focus of the building’s design was the use of a wide range of sustainable technologies to minimise energy consumption and reduce its carbon footprint. In addition to rainwater harvesting, a ‘brown roof’ wildlife habitat and photovoltaic panels, SE Controls’ natural ventilation solution also played an essential role in helping achieve the energy reduction targets.

SE Controls supplied, installed and commissioned the extensive natural ventilation system, which involved 562 TGCO chain and tandem type actuators together with 101 OS2 type 22 controllers to ensure the precise operation of automatically opening windows and vents within the workspace and four atria, which are managed by the building’s integrated BMS.

The natural ventilation system’s operation is also enhanced by the construction methods used with the building. Using steel framed construction and steel floor beams with 200mm thick hollow cellular core concrete floor planks, the design optimises the building’s thermal mass to enable the temperature to be managed without additional external cooling. The natural ventilation system is also used to ‘night purge’ the building, allowing cooler air to enter and cool the hollow beams.

SE Controls’ Project Manager, Darren Wainwright explained: “The Woodcock Street building epitomises current thinking on sustainable building design particularly in commercial workplace structures.”

He added: “Our natural ventilation system provides a highly energy efficient ventilation solution and its effectiveness is enhanced by many of the other sustainable technologies used within the building, such as solar shading and even details such as energy saving automatic lighting, which limits the heat energy being put into the building.”

SE Controls specialises in the design, project management and installation of advanced smoke ventilation and natural ventilation solutions to meet the needs of architects, contractors, building services engineers and facilities managers worldwide. Further information on SE Controls’ products, solutions and projects can be obtained by visiting www.secontrols.com or calling +44 (0) 1543 443060.

Indoor Air Quality In Schools – Is It Making The Grade?

The new Priority School Building Programme (PSBP) Facilities Output Specification, launched last October by the Education Funding Agency, proposes some significant, positive and welcome changes to school ventilation specifications, when compared to the existing BB101 standard.

Alongside ventilation and carbon dioxide levels, it also provides clear guides on specific performance standards for thermal comfort while recognising that indoor air quality, ventilation strategy, temperature, humidity and energy efficiency are all intrinsically linked.

However, given that the PSBP is aimed at renewing, repairing and refurbishing some of the country’s most dilapidated schools, the question has to be asked about what happens to those schools that are not especially out of date or in poor repair? Will schools that fall outside the scope of PSBP and its associated funding find that their pupils suffer as ‘legacy’ classroom designs struggle to meet the new standards, particularly for CO₂?

Classroom carbon dioxide levels exceed BB101

In the last quarter of 2012, we ran a pilot test with a small number of ‘non-PSBP’ primary schools in the Midlands and Northern Home Counties to gauge the actual level of CO₂ in classrooms.

Using our NVLogiQ room controller’s integral CO₂ sensor and data-logging function to monitor and record carbon dioxide levels for later analysis, it’s front panel display also acted as a ‘traffic light’ system for teachers, alerting them that the levels were increasing and they should manually open windows to improve ventilation.

When the initial data was analysed in January this year, the headline results raised some significant concerns and were as follows:

·         For most days, the daily average occupied CO₂ level exceeded the recommended 1500ppm figure in BB101.

·         In some cases the CO₂ figure was between 2500ppm and 3700ppm on every day of the week.

·         BB101’s maximum 5000ppm level was breached four times per week in some cases.

·         A maximum reading of 7200ppm was recorded, resulting in the CO₂ levels exceeding 5000ppm for almost 3 hours in one case.

While this is a relatively small pilot programme, the results appear fairly consistent and suggest that air quality in schools is probably not as good as it should be. It also raises some general questions about verifying the performance of building ventilation systems in schools.

Clearly the new PSBP output specification sets out to address the issue of CO₂ levels, but as some schools are already struggling to comply with the less stringent existing standards, it is evident that any PSBP compliant system must be designed correctly and controlled effectively.

Control is the key

In ‘post-test’ de-briefings, teachers said they were too busy to constantly monitor and respond to ‘traffic light’ signals, so relying on manual opening proved to be unviable due to the intrinsic lack of precise control

Unless automated ventilation solutions are adopted, such as window automation linked to dedicated monitors and controllers or a hybrid mixed mode system to provide additional backup, then it’s likely that children and teachers will continue to work in poorly ventilated and non-compliant schools with the inevitable result of reduced learning performance.

By utilising devices such as NVLogiQ, which can be configured to operate either as a networked system or be dedicated to individual areas, classroom CO₂ levels, temperature and energy efficiency can be managed as an integrated set of parameters to provide optimal ventilation while saving energy and money.

Performance monitoring and ‘Soft Landings’

While the value of effective monitoring and logging of CO₂, energy efficiency and other parameters provides a constant source of information for analysis and system ‘tuning’, the real benefits come from long term building performance and environment monitoring. This information allows consultants, contractors and school facilities mangers to understand and refine a building’s overall performance.

This facility has even more value within the framework of BSRIA’s Soft Landings programme, which formally establishes a process of managed and extended handover from contractor to owner or occupier to help create a culture of ‘shared responsibility and co-operation’.

A learning environment

PSBP provides a tremendous opportunity to bring our schools up to date with quality facilities and better, more comfortable energy efficient buildings.

It’s evident that the ventilation industry and the education sector have learned a lot since the original introduction of BB101, yet the issues identified in our classroom CO₂ pilot study suggest that while there are still some lessons to be learned, the ventilation solutions are already available.

SE Controls’ 30 years of experience in creating and installing natural ventilation solutions in a diverse range of sectors, alongside an ongoing commitment to rigorous academic research, equips us with skills and technologies that can help make PSBP work, while helping improve building performance overall.

SE Controls helps provide the perfect environment at Audi Leicester

Sytner Group’s state of the art Audi dealership in Leicester is using advanced natural ventilation technology from SE Controls to ensure that a comfortable environment is maintained for its customers and staff.

Constructed to Audi’s ‘Terminal Concept’ dealership template, originally designed by Allmann, Sattler, Wappner Architekten GmbH, the extensive new showroom and workshop complex replaces Sytner’s previously facility, which it had occupied since 2007.

As part of the energy efficient design, the dealership uses natural ventilation to ensure the carbon dioxide levels and temperature are managed effectively within the entire building to create a comfortable environment for staff and customers within the large open plan showroom as well as for its technicians in the pristine workshops.

SE Controls supplied, installed and commissioned the complete natural ventilation system, which involved the supply of two SCCO Schuco 500mm stroke chain actuators and a precision OS2 controller to provide automatic operation of the sloping vents in the showroom atrium. Manual operation of the vents also formed part of the showroom system, operated by tamper-proof key operated switches.

Audi Leicester’s workshop area is split into six separate areas, each with its own localised ventilation, control and manual over-ride system. To actuate the Schuco AWS 55 vertical vents, SE Controls installed 18 of its new 24 Volt SECO 24 40 N chain actuators together with six OS2 controllers and key operated switches to give accurate and flexible control over the system.

SE Control’s Project Manager, Darren Wainwright, explained: “The strength of the natural ventilation solution at Audi Leicester is its simplicity, versatility and effectiveness. By using well designed vents in the showroom and workshops, coupled with our energy efficient actuators and OS2 controllers, the overall system not only provides effective ventilation and temperature control, but also allows a high degree of flexibility in its operation, particularly in the workshops.”

SE Controls specialises in the design, project management and installation of advanced smoke ventilation and natural ventilation solutions to meet the needs of architects, contractors, building services engineers and facilities managers worldwide. Further information on SE Controls’ products, solutions and projects can be obtained by visiting www.secontrols.com or calling +44 (0) 1543 443060.

Honorary Graduate receives SE Controls award at winter ceremony

Loughborough University student Tom Davis is the latest recipient to be awarded the ‘SE Controls’ prize for best overall performance on the MSc course in low carbon building design and modelling.

The course, which is accredited by CIBSE and The Energy Institute, covers concept design, renewable energy technologies and energy consumption as well as advanced thermal, airflow and lighting modelling, to ensure students have a complete understanding of the principles and practice of low carbon design.

SE Controls originally created the prize as part of the company’s highly productive relationship with Loughborough’s School of Civil and Building Engineering. The School is one of the largest multi-disciplinary engineering faculties in the UK. It aims to develop and nurture the skills required to face the challenges of an increasingly complex built environment. Its world-class teaching and research are integrated to support the technical and commercial needs of both industry and society.

On presenting the award, Will Perkins of SE Controls commented “The school’s graduates are extremely sought after by industry and commerce, and its undergraduate and postgraduate programmes are consistently ranked as excellent in both student surveys and independent assessments”.

Prior to completing the MSc, 25-year-old Tom graduated Nottingham Trent University with a 2:1 in Building Surveying. Tom is currently employed as an Energy & Sustainability Consultant and aims to work towards CIBSE chartered status in a building services design consultancy.  

SE Controls specialises in the design, project management and installation of advanced smoke ventilation and natural ventilation solutions to meet the needs of architects, contractors, building services engineers and facilities managers worldwide. Further information on SE Controls’ products, solutions and projects can be obtained by visiting www.secontrols.com or calling +44 (0) 1543 443060.

SE Controls ventilation technologies improves safety and saves energy at HMP Oakwood

The £150 million HMP Oakwood in Staffordshire is using advanced smoke and natural ventilation solutions from SE Controls to not only improve safety in the event of a fire, but also save energy at the prison, which has achieved a BREEAM excellent rating.

Located on a 50 acre site adjacent to the existing Featherstone Prison near Wolverhampton, HMP Oakwood was designed by architects Pick Everard and comprises of 17 buildings including a healthcare unit, first night unit and training centre alongside three ‘star’ shaped secure accommodation blocks, each providing 480 places.

Designed and developed by WSP Group with additional specialised input from SE Controls, the combined smoke and natural ventilation system was tailored to meet the specific criteria and configurations of the individual buildings to ensure they not only complied with the relevant natural ventilation standards, but also met strict smoke ventilation performance specifications.

In addition, all of the components, systems and solutions provided by SE Controls were fully CE certified and complied with the relevant European standards including EN12101 and BS9999.

The complexity of the smoke and natural ventilation system varied depending on the size and nature of the seven individual buildings, ranging from a relatively straightforward installation within the healthcare block, to the complex multi-zoned solution used in the each of the main accommodation blocks, which would need to allow the safe evacuation of more than 500 people in the event of a fire.

Each four-storey accommodation block is designed with five ‘arms’ radiating from a centre access core, with four of the five providing accommodation and the last one dedicated to housing services to the building.

In natural ventilation mode, AOVs and roof actuators open to allow stale hot air to escape, with fresh air being drawn in through automatic glazed vents at the gable end of each prisoner wing, which operate as two separate zones serving the lower two and upper two floors. Air intake is also provided through additional glazed vents in the curtain wall screens on the centre core between the wings.

When smoke ventilation is required, the system provides both natural and mechanical smoke ventilation to ensure the smoke can be vented quickly and effectively to keep corridors and communal areas clear to aid evacuation. In the event of a fire, natural smoke ventilation is provided by the core’s glazed vents with the addition of ducted dampers, while mechanical smoke extraction is handled by high level louvres together with duty and standby fan sets located at the end of each accommodation wing.

To enable the natural and smoke ventilation systems to monitor the air quality and operate effectively, SE Controls supplied and installed a 32 zone BMS and fire alarm interface panel for each accommodation block together with all necessary actuators, vents and over-ride switches as well as smoke extract fan starter systems and pressure monitoring.

SE Controls’ Commercial Director, Martin Oates, explained: “We have undertaken a number of smoke and natural ventilation projects within the prison sector and they each have their own specific demands. The distinctive design of the accommodation blocks at HMP Oakwood not only provide a secure custodial solution, but also enabled us to create a highly effective natural ventilation systems that improves safety and evacuation in the event of a fire.”

SE Controls specialises in the design, project management and installation of advanced smoke ventilation and natural ventilation solutions to meet the needs of architects, contractors, building services engineers and facilities managers worldwide. Further information on SE Controls’ products, solutions and projects can be obtained by visiting www.secontrols.com or calling +44 (0)1543 443060.