Comparison of the high temperature heat flux sensor to traditional heat flux gages under high heat flux conditions.
Comparison of the high temperature heat flux sensor to traditional heat flux gages under high heat flux conditions.
Four types of heat flux gages (Gardon, Schmidt-Boelter, Directional Flame Temperature, and High Temperature Heat Flux Sensor) were assessed and compared under flux conditions ranging between 100-1000 kW/m2, such as those seen in hydrocarbon fire or propellant fire conditions. Short duration step and pulse boundary conditions were imposed using a six-panel cylindrical array of high-temperature tungsten lamps. Overall, agreement between all gages was acceptable for the pulse tests and also for the step tests. However, repeated tests with the HTHFS with relatively long durations at temperatures approaching 1000%C2%B0C showed a substantial decrease (10-25%) in heat flux subsequent to the initial test, likely due to the mounting technique. New HTHFS gages have been ordered to allow additional tests to determine the cause of the flux reduction.
- University of North Texas United States
Flux, Environmental assessment, Environment, Heat Flux, Heat, Reduction
Flux, Environmental assessment, Environment, Heat Flux, Heat, Reduction
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