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

- 2 days ago

Dyer's latest case study highlights our smoke shaft and NSHEV window ventilation systems at Balmoral Place Extra Care. The case study is available to view on our site - https://t.co/zijjlTOhUa https://t.co/kEKv7ethFB
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@dyerenvironment

- 3 days ago

Dyer supply, install and commission fully compliant mechanical smoke ventilation systems. Visit our site for more information on our smoke extract solutions - https://t.co/cqDSNdmFzs https://t.co/DWsBIkwqXX
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@dyerenvironment

- 8 days ago

We have received some great feedback from customers regarding two recently completed jobs. We pride ourselves on providing an excellent service throughout the entirety of a project. Contact us to discuss your requirements; 0161 491 4840 | [email protected] https://t.co/COEyFdtmHx
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@dyerenvironment

- 9 days ago

We are committed to providing ongoing support to customers at this time. Whilst strictly adhering to government guidelines, we’re still operating all our services. Contact us on 0161 491 4840 or [email protected]
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@dyerenvironment

- 24 days ago

Merry Christmas and Happy New Year from all of us at Dyer! 🎄 Thank you for your cooperation throughout 2020. We will return 4th January 2021. https://t.co/rfrqyR0kxq
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