A new generation cooling device employing CaCl2-in-silica gel–water system
A new generation cooling device employing CaCl2-in-silica gel–water system
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DOI：
10.1016/j.ijheatmasstransfer.2008.06.018
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发表时间：
2009-01
影响因子：
5.2
通讯作者：
B. Saha;A. Chakraborty;S. Koyama;Yuri I. Aristov
中科院分区：
文献类型：
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作者：
B. Saha;A. Chakraborty;S. Koyama;Yuri I. Aristov
以实验证实的吸附等温线和动力学数据为基础，建立了以“CaCl 2-KSK硅胶”复合吸附剂为吸附剂、水为吸附质的单效双床吸附式制冷机的动态模型。通过与传统的RD硅胶+水吸附式制冷机的实验数据对比，发现新型吸附式制冷机具有更好的制冷量和性能。通过数值模拟还发现，在最佳工况下，硅胶+水吸附式制冷机的制冷量可提高20%，性能系数（COP）可提高25%。我们还表明，在这里，最好的峰值冷冻水温度的抑制，和最大的冷却能力，可以实现两个周期的最佳分析。
This article presents the dynamic modelling of a single effect two-bed adsorption chiller utilizing the composite adsorbent “CaCl2confined to KSK silica gel” as adsorbent and water as adsorbate, which is based on the experimentally confirmed adsorption isotherms and kinetics data. Compared with the experimental data of conventional adsorption chiller based on RD silica gel+water pair, we found that the new working pair provides better cooling capacity and performances. From numerical simulation, it is also found that the cooling capacity can be increased up to 20% of the parent silica gel+water adsorption chiller and the coefficient of performance (COP) can be improved up to 25% at optimum conditions. We also demonstrate here that the best peak chilled water temperature suppression, and the maximum cooling capacity can be achieved by the optimum analysis for both cycles.