A method to determine the optimum location for fire alarms in residential buildings

R.E. Halliwell, M.A. Sultan


Fire alarms can save lives in a fire emergency only if people hear them. If alarm sounding devices are to be used effectively, attention must be paid to where they are located in the building. A simple expression has been developed to calculate the attenuation of the alarm signal from a smoke detector as it propagates through a residential building, with the path viewed as a series of connected rooms. Attenuation depends on floor area and type of furnishings in each room. Corrections are applied if the house does not have forced air heating or if a number of doors are closed. The expression can be used to determine the optimum location for alarms


acoustic wave absorption; acoustic wave propagation; alarm systems; architectural acoustics; fires; safety; acoustic alarm signal attenuation; closed doors attenuation; room furnishings; acoustic path model; acoustic frequency spectrum; multiple detector-alarm systems; optimum location; fire alarms; residential buildings; fire emergency; alarm sounding devices; connected rooms; floor area; forced air heating; 0.1 to 5.0 kHz

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