Compartment Fire Temperature-Time Curve Calculator

Calculate compartment fire temperature-time relationships using ISO 834 standard fire, Eurocode parametric fire, and hydrocarbon curves

Input Parameters

Results

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Gas Temperature
C
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Temperature at 30 min
C
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Temperature at 60 min
C
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Temperature at 120 min
C
Note: ISO 834 is the standard fire curve used in most building codes. Hydrocarbon curve reaches higher temperatures faster (used for petrochemical/offshore). Parametric curves model real fire behavior including a cooling phase. Opening factor and fire load affect parametric curve shape.

Reference

ISO 834: T = 20 + 345*log10(8t+1) Hydrocarbon (HC): T = 20 + 1080*(1 - 0.325*e^-0.167t - 0.675*e^-2.5t) External: T = 20 + 660*(1 - 0.687*e^-0.32t - 0.313*e^-3.8t) Eurocode Parametric: Gamma = (O/0.04)^2/(b/1160)^2 Heating: T = 20 + 1325*(1 - 0.324*e^-0.2t* - 0.204*e^-1.7t* - 0.472*e^-19t*) Cooling phase per EN 1991-1-2 Annex A