年間 18 号発行
ISSN 印刷: 1064-2285
ISSN オンライン: 2162-6561
Indexed in
DYNAMIC ANALYSIS OF A COMPRESSOR-DRIVEN CHEMISORPTION SYSTEM WITH A GAS COOLER UNDER THE TIME-DELAY CYCLE
要約
A compressor-driven chemisorption system with a gas cooler (CDCSGC) operating in a time-delay cycle is proposed for the purpose of enhancing the compressed heat transfer and recovering part of the pressure energy. The CDCSGC system using the basic and time-delay cycles is then mathematically simulated, and the influence of various parameters, including the volumetric displacement rate (Ucom), the gas cooler area (Agc), the basic cycle time (tbc), and the time-delay process time (ttd) on the specific cooling power (SCP) and the coefficient of performance (COP) is studied. Compared to the conventional system that uses the basic cycle, the proposed system not only can reduce the temperature in the adsorption reactor and the compression ratio, but also can recover the pressure energy. It is shown that the COP of CDCSGC can be increased by about 6% in all cases, although the SCP drops by about 2.8%. In addition, the expanded graphite−BaCl2 composite adsorbent/ammonia pair is considered as a potential alternative because of the low switch frequency of four-way valve, which can improve the stability of the system.
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Bagus Wirajati I Gusti Agung, Ueda Yuki, Akisawa Atsushi, Miyazaki Takahiko, Cycle Optimization on Reheat Adsorption Cycle Applying Fixed Chilled Water Outlet Temperature, Heat Transfer Engineering, 37, 7-8, 2016. Crossref