音響振動による熱輸送現象への周波数と平均圧力の影響に関する実験 Experimental Study on Effects of Frequency and Mean Pressure on Heat Pumping by Acoustic Oscilltion
Experimental studies were conducted for the fundamental understanding of the thermoacoustic behavior in the simulated resonance-tube refrigerator with special reference to the effect of imposed frequency and mean pressure. The resonance frequency in the case of helium was lower by about 20% than the theoretical prediction, while the experimental value in the case of air was almost the same as the theoretical one. The temperature difference observed along the stack increased with the increase in the amplitude of acoustic pressure, and decreased with the increase in the mean pressure, Based on the simplified model of heat pumping process, the relationship between the temperature variation and the acoustic pressure field was formulated, and thus the characteristic parameter which represents overall heat transfer between gas and stack plates or heat exchangers was obtained.
日本冷凍協会論文集 12(2), 165-176, 1995-07-31
Japan Society of Refrigerating and Air Conditioning Engineers