TY - GEN
T1 - Analysis of heat flux measurement by circular foil gages in a mixed convection/radiation environment
AU - Kuo, C. H.
AU - Kulkarni, Anil Kamalakant
PY - 1991/12/1
Y1 - 1991/12/1
N2 - Principles of heat flux measurement by circular foil heat flux sensors, also known as Gardon gages, are analyzed in a mixed convection/radiation environment, such as that occuring in the measurement of heat feedback from flames to the solid surface in vertical wall fires. A mathematical model is employed to derive the correction needed to determine the true heat flux from the flux indicated by the gage output using a calibration which is obtained under a radiative heat flux. It is shown that the correction is strongly dependent on the gage size and the heat transfer coefficient of thermal convection. Also, the effect of using a water-cooled gage for a surface at a temperature different from the gage base is studied. A method is proposed for estimating these corrections using charts.
AB - Principles of heat flux measurement by circular foil heat flux sensors, also known as Gardon gages, are analyzed in a mixed convection/radiation environment, such as that occuring in the measurement of heat feedback from flames to the solid surface in vertical wall fires. A mathematical model is employed to derive the correction needed to determine the true heat flux from the flux indicated by the gage output using a calibration which is obtained under a radiative heat flux. It is shown that the correction is strongly dependent on the gage size and the heat transfer coefficient of thermal convection. Also, the effect of using a water-cooled gage for a surface at a temperature different from the gage base is studied. A method is proposed for estimating these corrections using charts.
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M3 - Conference contribution
AN - SCOPUS:0026388759
SN - 0791806162
T3 - ASME/JSME Thermal Engineering Joint Conference
SP - 41
EP - 45
BT - ASME/JSME Thermal Engineering Joint Conference
PB - Publ by ASME
T2 - Proceedings of the 3rd ASME/JSME Thermal Engineering Joint Conference Part 5 (of 5)
Y2 - 17 March 1991 through 22 March 1991
ER -