A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Computer predicts HVAC effects on smoke detectors
Rapid response of smoke detectors is one of the important factors required to provide for life safety and property protection. Ever since the first smoke detectors were developed, there has been concern about the effects of HVAC induced flows on smoke detector response. A former study confirmed the concern about locating detectors where the supply air from the HVAC system can dilute smoke. However, placing detectors near HVAC returns may significantly delay smoke detector activation in open plan rooms. Additionally, it was found that the activation can be delayed to the side of a diffuser for some fire locations. This project used computational fluid dynamics (CFD) to simulate numerically the flows and temperatures in rooms due to building fires. CFD simulations examined the effects of HVAC flows resulting from ceiling mounted slot diffusers, wall mounted slot diffusers, high sidewall diffusers, and ceiling diffusers from which air flow drops on the floor. The commercially available CFD model CFX Flow Solver was used to perform the numerical simulations.
Computer predicts HVAC effects on smoke detectors
Rapid response of smoke detectors is one of the important factors required to provide for life safety and property protection. Ever since the first smoke detectors were developed, there has been concern about the effects of HVAC induced flows on smoke detector response. A former study confirmed the concern about locating detectors where the supply air from the HVAC system can dilute smoke. However, placing detectors near HVAC returns may significantly delay smoke detector activation in open plan rooms. Additionally, it was found that the activation can be delayed to the side of a diffuser for some fire locations. This project used computational fluid dynamics (CFD) to simulate numerically the flows and temperatures in rooms due to building fires. CFD simulations examined the effects of HVAC flows resulting from ceiling mounted slot diffusers, wall mounted slot diffusers, high sidewall diffusers, and ceiling diffusers from which air flow drops on the floor. The commercially available CFD model CFX Flow Solver was used to perform the numerical simulations.
Computer predicts HVAC effects on smoke detectors
Klote, J.H. (author)
Heating, Piping, Air Conditioning HPAC ; 70 ; 31-35
1998
5 Seiten, 5 Bilder, 15 Quellen
Article (Journal)
English
Brandverhütung , Brandschutz , Feuermeldetechnik , Warnsystem , Sicherheitstechnik , Rauch , Rauchentwicklung , Klimatechnik , Klimaanlage , Lüftungsanlage , Abluft , Zuluft , numerisches Verfahren , Strömungstechnik , Luftströmung , Feuerbekämpfung , numerische Strömungsberechnung , Rauchmelder , Brandmelder
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