MECHANICAL SMOKE VENTILATION

Mechanical Smoke Ventilation System (MSVS) is an industry approved method to quickly clear smoke from protected lobbies and staircases.

MSVS is an alternative method of smoke ventilation as detailed in Approved Document B, BS9991:2015 and BS EN 12101.6

To ensure the “alternative method” is compliant, Dyer recommend that MSVS is substantiated by a design report and calculation using Computational Fluid Dynamic (CFD).

Dyer supply, install and commission mechanical smoke ventilation systems that are fully compliant with the detailed recommendations on the design of such systems in line with the Smoke Control Association’s publication – Guidance on Smoke Control to Common Escape Routes in Apartment Buildings.

MSVS is designed to provide mechanical extract of smoke laden air and natural or replacement air inlet. Detection of smoke within the protected lobby will automatically trigger the system. The fire damper will open into the smoke shaft, other dampers are then “locked out” to ensure they stay closed. A fan set compromising duty and standby smoke ventilation fans is installed on the roof, the duty fan will operate to draw smoke through the damper and up the shaft. If this fan fails, an automatic transfer switch will operate the standby fan.

Inlet air is provided by opening a Natural Heat Smoke Exhaust Ventilator (NSHEV) at the head of the protected staircase. Fresh air is drawn through the staircase and door into the protected lobby.

This keeps the staircase free of smoke to allow safe escape for residents and safe access for firefighters. The basic principle of operation is similar for different building configurations, control of the system is adaptable to meet the architects design

          

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@dyerenvironment

- 3 days ago

The comfort and safety of people in buildings is paramount. We're glad to see our smoke ventilation system in place @ThHotelChester1. Information on our systems can found here - https://t.co/6AGFKG4OsO https://t.co/iDNxS9L0z7
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@dyerenvironment

- 7 days ago

Dyer supplied & installed 20 synchronised pairs of KA drives with LT switches & a VRS 10 rain sensor to operate 20 natural ventilation windows at the Pavilion within the Master’s Field @BalliolOxford. Discover more on similar products/systems here - https://t.co/SNSAQ6ur4D https://t.co/fKZ4yqtidx
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@dyerenvironment

- 11 days ago

@BarbourNews: @DyerEnvironment provided a natural smoke ventilation system for Newton House, a brand new Housing 21 Extra Care Living development in Penrith. Take a look at the project details here: https://t.co/9dRVWfcZsT #Dyer #ventilation #ventilationcontrols https://t.co/ECbgxiaafd
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- 11 days ago

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@dyerenvironment

- 14 days ago

Dyer's latest case study focuses on our work @Housing21's Newton House, Penrith. Dyer used louvres, rooflights and dampers as part of a fully certified natural smoke ventilation system. See our site for details on the system - https://t.co/ZiG38ZDTdi https://t.co/L8VhoxZ4KH
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