Heat Flux - Heat Transfer
Heat Transfer Engineering
Thermodynamics
The rate at which heat is transferred is represented by the symbol Q . Common units for heat ˙Q transfer rate is Btu/hr. Sometimes it is important to determine the heat transfer rate per unit area, or heat flux, which has the symbol Q". Units for heat flux are Btu/hr-ft2. The heat flux can be ˙Q determined by dividing the heat transfer rate by the area through which the heat is being transferred.
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