Waste Heat Driven Multi-Bed Adsorption Chiller: Heat Exchangers Overall Thermal Conductance on Chiller Performance
Waste Heat Driven Multi-Bed Adsorption Chiller: Heat Exchangers Overall Thermal Conductance on Chiller Performance
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DOI：
10.1080/01457630600560742
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发表时间：
2006-06
影响因子：
2.3
通讯作者：
B. Saha;Ibrahim I. El-Sharkawy;S. Koyama;J. B. Lee;K. Kuwahara
中科院分区：
文献类型：
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作者：
B. Saha;Ibrahim I. El-Sharkawy;S. Koyama;J. B. Lee;K. Kuwahara
考虑到吸附器/解吸器换热器的吸附剂和金属的热容比，分析研究了吸附元件（吸附器/解吸器）、蒸发器和冷凝器的热导对三床硅胶-水吸附式制冷机性能的影响。该分析是使用作者开发的循环模拟模型进行的。冷水机通过利用温度为 60 和 95°C 的废热来驱动，并配有 30°C 的冷却源用于空调目的。结果表明，由于批量循环操作产生的几个显热/冷却要求，循环性能受到热容比和吸附元件热导的强烈影响。该模型对蒸发器的热导有些敏感，而冷凝器的热导是最不敏感的参数。
The results of an analytic investigation on the influence of the thermal conductance of a sorption element (adsorber/desorber), evaporator, and condenser on the performance of a three-bed silica-gel-water adsorption chiller are presented with consideration given to the thermal capacitance ratio of the adsorbent and metal of the adsorber/desorber heat exchanger. The analysis was performed by using a cycle-simulation model developed by the authors. The chiller is driven by exploiting waste heat at a temperature 60 and 95°C with a cooling source at 30°C for air conditioning purpose. The results show that the cycle performance is strongly affected by the thermal capacitance ratio and sorption element thermal conductance due to several sensible heating/cooling requirements resulting from batched cycle operation. The model is somewhat sensitive to the thermal conductance of the evaporator, and the thermal conductance of the condenser is the least sensitive parameter.