Multi-Bed Multi-Stage Adsorption Refrigeration Cycle-Reducing Driving Heat Source Temperature
Multi-Bed Multi-Stage Adsorption Refrigeration Cycle-Reducing Driving Heat Source Temperature
复制标题
多床多级吸附制冷循环降低驱动热源温度
作者：
K. Alam;Akira Akahira;Y. Hamamoto;A. Akisawa;T. Kashiwagi;B. Saha;S. Koyama;K. Ng;H. Chua
该研究旨在设计一种多床多级吸附式制冷机，可以在接近环境温度的情况下由废热驱动。冷水机的设计可以根据驱动热源温度切换到不同的模式。分级再生技术已被应用于通过相对低温的热源来操作冷却器。通过模拟数据验证了驱动热源温度，并对不同模式下获得的性能进行了比较。在COP（性能系数）方面，冷水机在驱动热源温度大于60℃的常规单级模式、驱动源温度在42℃至60℃之间的两级模式、驱动源温度小于42℃的三级模式中表现出最佳性能。在制冷能力方面，在热源温度大于70℃时，冷水机在单级模式中表现出最佳性能。还考察了单级模式下的质量回收过程。可以看出，质量回收过程显着提高了冷却能力，特别是对于低再生温度区域。
The study aims at designing a multi-bed multi-stage adsorption chiller that can be driven by waste heat at near ambient temperature. The chiller is designed such a way that it can be switched into different modes depending on the driving heat source temperature. Stage regeneration techniques have been applied to operate the chiller by relatively low temperature heat source. Driving heat source temperature is validated by simulated data and the performances obtained from different modes are compared. In terms of COP (Coefficient of performance), the chiller shows best performance in conventional single-stage mode for driving heat source temperature greater than 60 C, two stage mode for driving source temperature between 42 and 60 C, in three-stage mode for driving source temperature less than 42 C. In terms of cooling capacity, it shows the best performance in single-stage mode for heat source temperature greater than 70 C. The mass recovery process in single-stage mode is also examined. It is seen that the mass recovery process improve cooling capacity significantly, specially for the low regenerating temperature region.