Prestige Johannesburg office development stays cool with SE Controls

A new prestige office development in Sandton, Johannesburg is using a combined smoke and natural ventilation system, involving automatic window vents in the building’s elliptical glazed central tower, which is actuated and controlled by an integrated solution from SE Controls Africa.

Located in the Sandton business area, which is regarded as one of South Africa’s prime commercial locations, the R208 million (£10.7 million) Capital Hill development combines seven floors of office space with residential apartments, as well as covered parking for almost 400 vehicles.

                                  

Designed by MWLF Architects, the building not only provides high quality business facilities and residential accommodation, but is also highly energy efficient and is constructed to achieve a ‘Four Green Star’ rating from the Green Building Council of South Africa.

As part of this process, the building’s 12 storey elliptical central tower features a fully glazed external facade within an aluminium lattice structure, which incorporates an automatic window and vent opening system to provide natural ventilation and overnight cooling, as well as smoke ventilation in the event of a fire.

To achieve the necessary level of versatility and control required for the automated vent system, SE Controls supplied 49 SECO N 24 25 twin chain actuators with a 350mm stroke length together with 7 SHEVTEC® control panels and manual control points (MCP), which were networked using the company’s OSLink network cards. An external weather station was also installed to provide an information feed on ambient conditions into the system.

In normal operation, the windows open and close automatically, to provide cooling and a supply of fresh air, but in the event of a fire this is over-ridden and vents are opened to allow smoke to be vented, enabling escape routes to be kept smoke free.

Russell Cramb, General Manager with SE Controls Africa, explained: “Capital Hill is an iconic building and has already attracted a lot of attention for its eye-catching design, green credentials and the quality of facilities it provides. We have an immense amount of experience in combined natural and smoke ventilation solutions, which we used when working with the architect to create a solution that wouldn’t compromise the smooth architectural lines of the external glazed facade.”

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 Smoke and Natural ventilation solution for Airbus

A new 25,000m² office building for leading aircraft manufacturer, Airbus, is using an advanced smoke and natural ventilation system from SE Controls to provide a comfortable working environment for staff while ensuring that an effective smoke and fire control strategy can be implemented in the event of a fire.

The four storey building, which is part of the £70 million Airbus Aerospace Business Park development at Filton, accommodates more than 2,500 staff and brings together engineering, design and customer support functions that are currently located in several smaller buildings onsite into the new engineering and technology campus.

SE Controls was involved in the project from the early stages to clarify the ventilation strategy and provide calculations on the free area requirements for the smoke vents to ensure compliance and performance standards were met.

Four separate atrium spaces feature as part of the building, designed by AWW Architects, and each incorporates 84 Schüco AWS 102 projected top hung vents. The vents are automatically operated by a total of 336 SCCO 24 30 concealed actuators, which were supplied, installed and commissioned by SE Controls in partnership with specialist façade contractor, Norking Aluminium.

In addition to installing the actuators, the interface control panels were also supplied, installed and commissioned by SE Controls together with the fire rated cabling, which is completely concealed within the curtain walling.

During day-to-day operation, the natural ventilation system responds to signals from sensors linked to the building management system (BMS) to ensure that the indoor air quality and temperature are maintained within the pre-set parameters to maintain a comfortable working environment.

In the event of a fire, the building’s alarm system signals the natural ventilation system to automatically close all the vents as part of the smoke and fire control strategy. This not only restricts the flow of oxygen into the building to help suppress the fire but also allows precise control to be taken by fire officers via the system’s manual control points, enabling smoke to be cleared from the relevant atrium.

As SE Controls’ actuators and Schüco vents have been tested and proven to meet the European smoke vent standard hEN12101-2 and the Construction Products Regulations that came into force in July 2013, the ventilations system is CE marked and fully compliant.

SE Controls’ Commercial Director, Martin Oates, commented: “The Airbus project is an excellent example of how a fully compliant life safety critical smoke ventilation system can also be utilised on a day to day basis to provide a controlled natural ventilation solution that maintains comfort for Airbus staff.”

He added: “By being brought into the process at a very early stage, we were able to clarify the specification, assist the design team and help resolve any technical and operational issues during the build.”  

  

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.

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.

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.