Experimental study on a continuous adsorption water chiller with novel design
Experimental study on a continuous adsorption water chiller with novel design
复制标题
DOI：
10.1016/j.ijrefrig.2004.09.004
复制
发表时间：
2005-03
期刊：
影响因子：
--
通讯作者：
Yuyang Liu;Ruzhu Wang;Z. Xia
中科院分区：
文献类型：
--
作者：
Yuyang Liu;Ruzhu Wang;Z. Xia
介绍了一种新研制的吸附式冷水机组，并对其进行了试验。这种新型吸附式制冷系统中没有制冷剂阀门，完全解决了传统系统中以甲醇或水为制冷剂时由于传质阻力而导致制冷剂通道沿着压降的问题。采用硅胶-水作为工质对，采用类质量回收过程，有效利用70 ~ 85°C的低温热源。实验结果表明，该制冷机（每台吸附器吸附硅胶26.4kg）的制冷量为2 ~ 7.3kW，制冷系数（COP）随蒸发温度的变化范围为0.2-0.42。在第一台样机实验测试的基础上，设计并测试了第二台样机，实验数据表明，该制冷机的性能有了很大的提高，在蒸发温度为13°C时，热源温度为80°C，COP大于0.5，制冷量为9 kW。
A newly developed adsorption water chiller is introduced and tested. In the new adsorption refrigeration system, there are no refrigerant valves, the problem of mass transfer resistance resulting in pressure drop along refrigerant passage in conventional systems when methanol or water is used as refrigerant can be absolutely solved. Silica-gel–water is used as working pair and mass recovery-like process is adopted in order to use low temperature heat source ranging from 70 to 85°C effectively. The experiment results demonstrate that the chiller (26.4kg silica-gel in each adsorber) has a cooling capacity of 2–7.3kW and COP ranging 0.2–0.42 according to different evaporating temperatures. Based on the experimental tests of the first prototype, the second prototype is designed and tested; the experimental data demonstrate that the chiller performance has been greatly improved, with a heat source temperature of 80°C, a COP over 0.5 and cooling capacity of 9kW has been achieved at evaporating temperature of 13°C.