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Analytical Study of a Gas-Fired Adsorptive Air-Conditioning System 燃气吸附式空调系统的分析研究
吸附式空调是氟氯化碳(CFC)系统的潜在替代品。但要与其他系统竞争,吸附系统必须表现出足够的优点和能量密度。本文对吸附器的总传热系数进行了分析研究。本研究基于矩分析法,显示了限制吸附床传热的三个参数的影响。吸附床中的传热得到了加强。使用新的固结材料,机器在一个循环中使用两个均温吸附床,包括热量和质量回收。它使用沸石水对。其设计用于产生3kW的冷却。预期冷却性能为200W/kg吸附剂,性能系数(COP)接近0.8,循环时间为20分钟。用于测试循环的热条件如下:- 加热器温度为220摄氏度,冷却器温度为40摄氏度,蒸发温度为3摄氏度。
Adsorptive air conditioning represents a potential alternative to chlorofluorocarbon (CFC) systems. But to compete with other systems, adsorption systems must exhibit sufficient figures of merit and energetic densities. An analytical study to predict the overall heat transfer coefficient in an adsorber has been conducted and is presented. This study, based on a method-of-moment analysis, shows the influence of three parameters limiting the heat transfer in adsorbent beds. heat transfer in adsorbent beds has been intensified. Using new consolidated materials, the machine utilises two uniform temperature adsorbent beds in a cycle that incorporates both heat and mass recovery. It uses a zeolite-water pair. It is designed to produce 3kW of cooling. Expected cooling performances are 200W/kg of adsorbent with a coefficient of performance (COP) close to 0.8 and a cycle time of 20 minutes. The thermal conditions used to test the cycle are - the heater, 220degC, the cooler, 40degC, and the evaporation temperature, 3degC.KEYWORDS: year 1996, gas fired, adsorption, air conditioning, cooling, heat transfer coefficient, calculating, heat flow, adsorbents, cyclic, heat recovery, zeolites, water, performance, thermal conductivity
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