Research on Combustion Heat Release Rate Testing Technology Based on TDLAS

This paper researched heat release rate testing technology based on TDLAS oxygen analyzer and paramagnetic oxygen analyzer, and researched the test data of the two systems when testing the oxygen concentration of air and the combustion exhaust gas. Experiments showed that, the TDLAS testing system could realize the measurement of the combustion heat release rate. Compared with the paramagnetic testing system, the TDLAS testing system has a shorter response time to the change of heat release rate which was about 3s, but the data fluctuation range is bigger and the biggest data fluctuation was bigger than 10 kW under test condition.