Performance of Heat Generation for the Heat Pump of Direct Heat Exchanging Method Using Humid Air

Abstract

The generation of steam with high temperate was investigated when saturated humid air is flowed into the adsorption heat pump used the packed bed with 13X zeolite. As a result of experiments to measure temperature of generated steam, its maximum value was over 150 °C when humid air was preheated to 70 °C. Since the maximum temperature of steam was not drastically affected by superficial velocity of humid air, it was presented that the maximum temperature does not depend on the heat transfer between humid air and zeolite under experimental conditions in this study. Hence, the maximum temperature of steam was estimated by the relationship between the adsorption equilibrium and heat balance under the assumption that both of temperature in gas and zeolite are equal. As a result, it was revealed that the maximum temperature was possible to be estimated by this method under the condition that the temperature of humid air is high.