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TECHNICAL PAPERS

Thermoeconomic Analysis on the Performance Characteristics of a Multi-Stage Irreversible Combined Heat Pump System

[+] Author and Article Information
Jincan Chen

Department of Physics, Xiamen University, Xiamen 361005, People’s Republic of China

Chih Wu

Department of Mechanical Engineering, U. S. Naval Academy, Annapolis, MD 21402-5042e-mail: wu@gwmail.usna.edu

J. Energy Resour. Technol 122(4), 212-216 (Sep 07, 2000) (5 pages) doi:10.1115/1.1326914 History: Received January 10, 2000; Revised September 07, 2000
Copyright © 2000 by ASME
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References

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Figures

Grahic Jump Location
The schematic diagram of a multi-stage irreversible combined heat pump system
Grahic Jump Location
The curves of (a) the coefficient of performance ψR, (b) the dimensionless heating load ΠR*=q1R/(U*ATp), and (c) the dimensionless power input PR*=PR/(U*ATp) at maximum profit varying with the temperature ratio Tc/Tp for some given values of the internal irreversibility I (dashed lines I=1 and solid lines I=1.1) and the price ratio f1/f. Curves I and II correspond to the cases of f1/f=0.5 and 0.7, respectively.
Grahic Jump Location
The curves of (a) the coefficient of performance ψR, (b) the dimensionless heating load ΠR*=q1R/(U*ATp), and (c) the dimensionless power input PR*=PR/(U*ATp) at maximum profit varying with the price ratio f1/f for some given values of the internal irreversibility I (dashed lines I=1 and solid lines I=1.1) and the temperature ratio Tc/Tp. Curves I and II correspond to the cases of Tc/Tp=0.7 and 0.9, respectively.

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