1900℃レベル高温燃焼ガス計測用イリジウム多点熱電対温度計

概要

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For very high gas temperature measurement encountered in recent gas turbine research and development procedure, optical instrumentation have often difficulties in installation of the optical windows and in the evaluation of the values due to the sophisticated diaguostics. Therefore, to measure combustion gas temperature higher than 1900K, a practical multipoint lridium-Rhodium thermocouple rake was designed and evaluated. The seven-point rake with triple radiation shields was tested in combustion gases between 1000K and 2200K. Measured temperature agreed well to the deduced temperature derived from adiabatic flame temperature compensated with combustion efficiencies and heat loss due to the coolant. Possible causes of the error and the reliability were discussed. The rake probe designed proved that no compensation is necessary for practical use if it allows the error of 5% in maximum.
社団法人日本ガスタービン学会の論文
1996-06-10