标题：DYNAMIC ANALYSIS OF A COMPRESSOR-DRIVEN CHEMISORPTION SYSTEM WITH A GAS COOLER UNDER THE TIME-DELAY CYCLE
作者：Lai, Yanhua;Dong, Zhen;Lyu, Mingxin
作者机构：[Lai, Y] School of Energy and Power Engineering, Shandong University, Jinan, 250061, China;[ Dong, Z] School of Energy and Power Engineering, Shandong 更多
通讯作者地址：[Lai, YH]Shandong Univ, Sch Energy & Power Engn, Jinan 250061, Peoples R China.
来源：Heat Transfer Research
关键词：dynamic;barium chloride;compressor-driven adsorption system;refrigeration
摘要：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 (U-com,), the gas cooler area (A(gc)), the basic cycle time (t(bc)), and the time-delay process time (t(td)) 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.