On Evaluating Efficiency of a Combined Power and Cooling Cycle
Author:
Vijayaraghavan Sanjay1, Goswami D. Y.1
Affiliation:
1. Mechanical and Aerospace Engineering Department, University of Florida, P.O. Box 116300, Gainesville, Florida 32611-6300
Abstract
A combined power and cooling cycle is being investigated. The cycle is a combination of the Rankine cycle and an absorption refrigeration cycle. Evaluating the efficiency of this cycle is made difficult by the fact that there are two different simultaneous outputs, namely power and refrigeration. An efficiency expression has to appropriately weigh the cooling component in order to allow comparison of this cycle with other cycles. This paper develops several expressions for the first law, second law and exergy efficiency definitions for the combined cycle based on existing definitions in the literature. Some of the developed equations have been recommended for use over others, depending on the comparison being made. Finally, some of these definitions have been applied to the cycle and the performance of the cycle optimized for maximum efficiency. A Generalized Reduced Gradient (GRG) method was used to perform the optimization. The results of these optimizations are presented and discussed.
Publisher
ASME International
Subject
Geochemistry and Petrology,Mechanical Engineering,Energy Engineering and Power Technology,Fuel Technology,Renewable Energy, Sustainability and the Environment
Reference13 articles.
1. Goswami, D. Y., 1995, “Solar Thermal Power—Status of Technologies and Opportunities for Research,” Proceedings of the 2nd ISHMT-ASME Heat and Mass Transfer Conference, Tata McGraw Hill, New Delhi, pp. 57–60. 2. Goswami, D. Y.
, 1998, “Solar Thermal Power Technology: Present Status and Ideas for the Future,” Energy Sources, 20, pp. 137–145. 3. Xu, F., Goswami, D. Y., and Bhagwat, S. S., 2000, “A Combined Power/Cooling Cycle,” Energy (Oxford), 25, pp. 233–246. 4. Goswami, D. Y., and Xu, F., 1999, “Analysis of a New Thermodynamic Cycle for Combined Power and Cooling Using Low and Mid Temperature Solar Collectors,” J. Sol. Energy Eng., 121, pp. 91–97. 5. Tamm, G., Goswami, D. Y., Lu, S., and Hasan, A. A., 2003, “A Novel Combined Power and Cooling Cycle for Low Temperature Heat Sources—Part I: Theoretical Investigation,” J. Sol. Energy Eng., 125(2), pp. 218–222.
Cited by
100 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|