エタノール水溶液を用いた自励振動ヒートパイプに関する研究

抄録

In this study, experiments were carried out using a 1-turn pulsating heat pipe having a visualization flow channel. Deionized water, ethanol and ethanol aqueous solution were used as the working fluid. As a result, it was found that by using ethanol aqueous solution, the effective thermal conductivity increased compared with deionized water and ethanol. Vapor pressure, vapor temperature and wall temperature were measured. Liquid column oscillation in the channel was recorded by a high-speed video camera. Based on these measurements, the effects of working fluids and inclination angle (horizontal, vertical) on the liquid column oscillation and heat transport characteristics were discussed.