smoke ventilator Articles
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Operation Comet - Hatfield Tunnel RTA (road traffic accident) - Case Study
A staged multi-vehicle accident in the Hatfield Tunnel, involving a road tanker, 2 lorries and a minibus took place in October 2011. Concept's ViCount smoke system produces the world's most persistent artificial smoke, critical when you are looking at smoke travel over several kilometres. The operation was designed to test the responses of the emergency services and the tunnel video smoke ...
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Tunnel Fires: Experiments on Critical Velocity and Burning Rate in Pool Fire During Longitudinal Ventilation
In this study, the 1/20 reduced-scale experiments using Froude scaling are conducted to investigate the effect of longitudinal ventilation velocity on the burning rate in tunnel fires. The methanol pool fires, acetone pool fires, and n-heptane pool fires with a heat release rate ranging from 2.02 to ~6.15 kW, 2.76 to ~11.04 kW, and 2.23 to ~15.6 kW, respectively, are used. A load cell is used to ...
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Hot smoke test in a 16 platform underground siding - Case Study
The requirement Our brief was to produce a thermally buoyant smoke layer in order to test the efficiency of the high level smoke extraction system, activating the VESDA smoke detection system, but without activation of the sprinkler system: We supplied smoke generating equipment, an operator and technical guidance as to how this could be achieved. The testing took place over a period of ...
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Hot Smoke Test - White City (16 platform underground siding) - Case Study
Concept were commissioned by Westfield’s to produce a thermally buoyant smoke effect within the siding complex in order to verify the performance of the smoke detection and smoke extraction system. The equipment used; ViCount 5000 / 180 / 1.7kw smoke generator, stainless steel deflector plate, smoke oil 180, propellant CO2 gas, calibrated temperature sensor / thermocouple and space heater. ...
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Study Correlates Radon and Fracking
While some researchers implicate Marcellus Shale fracking for increased levels of radon in parts of Pennsylvania, others point to factors including soil moisture levels and improved home insulation. As researchers debate causes of increased radon level, residents must find ways to deal with it Radon is an odorless, tasteless, naturally occurring radioactive gas that forms from the decay of ...
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Pumps for the Booming FPSO Sector
In the last few years, several new offshore oil fields have been discovered. The current findings from Petrobras and other companies in the pre-salt province, located in the Brazilian continental shelf, suggest reserves of over 50 billion barrels of oil. Extracting the pre-salt oil is challenging and done increasingly with floating production storage and offloading units (FPSOs). Sulzer offers a ...
By Sulzer Ltd.
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