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TECHNICAL PAPERS

Study of the Effects of Mass and Heat Recovery on the Performances of Activated Carbon/Ammonia Adsorption Refrigeration Cycles

[+] Author and Article Information
T. F. Qu, W. Wang, R. Z. Wang

Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai 200030 P.R. China

J. Sol. Energy Eng 124(3), 283-290 (Aug 01, 2002) (8 pages) doi:10.1115/1.1487883 History: Received May 01, 2000; Revised July 01, 2001; Online August 01, 2002
Copyright © 2002 by ASME
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References

Figures

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P-T-X diagram of the intermittent and heat recovery cycle
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Schematic system for basic cycle; the dashed line represents thermal fluid flow
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Schematic system of heat recovery cycle; the dashed line represents thermal fluid flow
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Diagram of mass recovery process and combined cycle with heat and mass recovery
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Schematic system of mass recovery/heat and mass recovery cycle; the dashed line represents thermal fluid flow. The solid line and valve between the adsorbers processes mass recovery, and the dashed line between adsorbers processes heat recovery.
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COPs of different cycles: – heat and mass recovery cycle; —▪— basic cycle; —▾— heat recovery cycle; —×— mass recovery cycle
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COP ratio of mass recovery cycle to basic cycle with various evaporating temperature: Te/°C —▪— 10; —•— 5; —▴—0; —×— −5; – −10
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COP ratio of mass recovery cycle to basic cycle with various condensing temperature: Tc/°C —▪— 30; – 35; —▴— 40
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(a) Percentage of enlarged cooling capacity of mass recovery cycle with various evaporating temperature: Te/°C —▪— 10; —•— 5; —▴— 0—; —×— −5; – −10. (b) Percentage of enlarged cooling capacity of mass recovery cycle with various evaporating temperature: Te/°C —▪— 10; —•— 5; —▴— 0; —×— −5; – −10
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P-T-x diagram of activated carbon/ammonia adsorption
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Proportion of enlarged cooling capacity of mass recovery cycle with various condensing temperature: Tc/°C —▪— 30; – 35; —▴— 40
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Relative cop of mass recovery cycle with different heat capacity ratio: Rm —▪— 8; —▴— 5.8; —×— 0
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Augmentation of cooling capacity of mass recovery cycle with different heat capacity ratio: Rm —▪— 8; —▴—5.8; —×— 0
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Photograph of the prototype machine

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