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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- 5 days ago

From the start of a project, through to completion and post-installation, we are here to help. We're committed to ensuring the right ventilation solution is found. Contact us to discuss your requirements; 0161 491 4840, [email protected], https://t.co/8HE1iRKb1b https://t.co/jk28jla6nd
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- 7 days ago

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- 13 days ago

We had another enjoyable morning at the @gmchamber Oldham Construction Club earlier today, where interesting projects and topics were discussed. https://t.co/oSVUbjyOzK
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- 16 days ago

Dyer recently visited 1 Telford Plaza to review the pressurization system installed in the early 1990’s. We presented our findings and carried out the required service and repairs. Contact us to discuss system reviews; +44 (0)161 491 4840, [email protected] https://t.co/lZyPTXGPLR
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- 23 days ago

Dyer attended the @FetaNews lunch last Friday along with @VentEngineering, @SmokeContAssoc, @IFCGroupFire, @SmokeControl and @thefdsgroup. It was great to catch up with colleagues from across the smoke ventilation industry. https://t.co/tYGPdbLzCH
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