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

- 12 hours ago

From the start of a project right through to completion, post-installation and maintenance, Dyer are here to help. Find the right departments to talk to on our site - https://t.co/pbNAQ6Da5c https://t.co/o6IsIiAsi0
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- 3 days ago

Dyer supplied & installed our D+H KA drives to Schüco windows (supplied & installed by @TheAlumetGroup), to provide certified NSHEVs at River Street Tower student accommodation in Manchester. Information on NSHEVs - https://t.co/titxuSO1Cm & KA drives - https://t.co/MieaZW5kki https://t.co/KpLUlUZkmI
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@dyerenvironment

- 7 days ago

Dyer’s mechanical smoke ventilation systems control fire rated fans, dampers, grills and vents in order to manipulate smoke and poisonous gasses up and out from common areas such as corridors and lobbies. See our site for more information - https://t.co/F7gRFKxwsf https://t.co/UXOpUTI0q2
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@dyerenvironment

- 10 days ago

Dyer recently installed end of corridor and head of stair AOVs as part of a natural smoke ventilation system at the refurbished grade II listed former Cookridge Hospital in Leeds. Details on our products and systems can be found on our site - https://t.co/z7KoN9qNJd https://t.co/Ww3q7kRD7o
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@dyerenvironment

- 15 days ago

Dyer’s smoke ventilation maintenance packages can be customised and adapted to suit all budgets and requirements. Contact our team on 0161 491 4840 (option 5), or [email protected] More information is available on our site - https://t.co/vWdBo4dB4a https://t.co/ntd4gmCR0l
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