Two-Stage Non-Regenerative Silica Gel-Water Adsorption Refrigeration Cycle
Two-Stage Non-Regenerative Silica Gel-Water Adsorption Refrigeration Cycle
复制标题
两级非蓄热式硅胶-水吸附制冷循环
DOI：
10.1115/imece2000-1297
复制
发表时间：
2000
期刊：
影响因子：
--
通讯作者：
H. Chua
中科院分区：
文献类型：
--
作者：
B. Saha;K. Alam;A. Akisawa;T. Kashiwagi;K. Ng;H. Chua
在过去的二十年中，已经做出了相当大的努力来将吸附（固体/蒸气）用于冷却和热泵应用，但是仅仅在对CFC（氯氟烃）和HCFC（氢氯氟烃）的生产和使用施加国际限制之后才开始加强努力。在日本，封闭式、传统的吸附式制冷和热泵系统的市场份额越来越大。本文介绍了一种两级非回热式硅胶-水吸附式制冷机的设计。实验测量上进行的一个3.5千瓦的额定制冷量的吸附式热泵的原型，以确定其在不同的工作温度（热，冷却和冷冻水）下的性能。从制冷量和性能系数两个方面对冷水机组的性能进行了分析。两级吸附式制冷机的主要创新特征是能够利用低温废热（约55°C）作为驱动源，冷却源为30°C。通过使用两级循环，克服了在操作具有如此小的再生温度升程（热源和散热器入口之间的温度差）的热激活循环中固有的技术困难。
Over the past two decades there have been considerable efforts to use adsorption (solid/vapor) for cooling and heat pump applications, but intensified efforts were initiated only since the imposition of international restrictions on the production and use of CFCs (chlorofluorocarbons) and HCFCs (hydrochlorofluorocarbons). Closed-type, conventional adsorption refrigeration and heat pump systems have an increasing market share in Japan. In this paper, a two-stage non-regenerative, silica gel-water adsorption chiller design is outlined. Experimental measurements are performed on a prototype of a 3.5 kW rated cooling capacity adsorption heat pump in order to determine its performance under different operating temperatures (hot, cooling and chilled water). The chiller performance is analyzed in terms of cooling capacity and coefficient of performance (COP). The main innovative feature in the two-stage adsorption chiller is the ability to utilize low-temperature waste heat (∼55°C) as the driving source with a cooling source of 30°C. The technological difficulty inherent in operating a thermally activated cycle with such a small regenerating temperature lift (temperature difference between heat source and heat sink inlets) is overcome by use of a two-stage cycle.