ゼオライト/水系の温風・マイクロ波併用低湿度空気脱着

Abstract

"The author has proposed a hybrid air-conditioner employing both heat and microwave irradiation for achieving greater compactness and higher output of a desiccant air-conditioner. In this research， the effectiveness of this system has been evaluated for promoting desorption of adsorbed water using microwave irradiation and heating under two conditions: air with the same humidity as that in the adsorption process (Case-1) and air with humidity lower than that in the adsorption process (Case-2). This evaluation was done using the desorbability and desorption rate as indicators. In the experiment， measurements were taken of hot air temperature due to the zeolite-filled layer (50-100℃)，microwave intensity (30-100 W)， and temperature in the filled layer and humidity at the intake and outlet of the layer， in the desorption process under three types of initial conditions for adsorbed amount. The results are given below. 1) The heat balances for Case-1 and Case-2 can be evaluated using the same technique. 2) The desorption time and thermal efficiency of the system with combined use of microwaves，taking the hot air system desorbability in Case-2 as a reference standard， are respectively a minimum of 0.3 times and a maxirnum of 1.3 times the values in the hot air system. This suggests that， compared to conventional hot air heating type desiccant air conditioners，it is possible to increase the amount of treated air by 1.25 times， and reduce the adsorption rotor cross-sectional area by 0.8 times. 3) Adoption of microwaves will contribute to efficient，high-level desorption."