二線式熱電対を用いた燃焼室内局所ガス温度計測法の開発(熱工学,内燃機関,動力など)

概要

論文の詳細を見る
Thermocouples are widely used to measure gas temperature due to its accuracy and convenience. However, it is difficult to employ thermocouples in a transient phenomena such as reacting fields. In this study, the unsteady gas temperature inside a combustion chamber was measured by using an improved two-wire thermocouple technique. Based on previous two-wire methods, some modifications were examined. Firstly, numerical analysis of heat transfer between transient flow and thermocouple was performed to see what kind of modification is required. Secondly, a correction term was added to the basic equation, which was validated by experiments using RCEM. Finally, an improved two-wire thermocouple technique was evaluated by measuring the transient gas temperature inside a combustion chamber comparing to the estimated temperature using measured pressure data and assumptions such as chemical equilibrium to see the adaptability of this technique.
社団法人日本機械学会の論文
2005-01-25