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Title: Long-term thermodynamic performance of solar heat and power systems
Authors: Wijeysundera, N.E. 
Ho, J.C. 
Issue Date: 1986
Citation: Wijeysundera, N.E.,Ho, J.C. (1986). Long-term thermodynamic performance of solar heat and power systems. Applied Energy 24 (1) : 43-63. ScholarBank@NUS Repository.
Abstract: This paper describes a long-term simulation study of solar thermal systems incorporating second-law considerations. Both open-loop and closed-loop heat collecting configurations are simulated using hourly meteorological data. The entropy generation in each subcomponent is calculated on an hourly basis to obtain the yearly mean second-law efficiency. The effects of load temperature, mode of operation, collector type, collector area and storage tank size are investigated. Some results are presented for a solar-Rankine power plant using R-12 and R-22 as the working fluids. The use of the plate temperature as the 'source' temperature gives an optimal collector size which maximizes the second-law efficiency. When the equivalent 'sun' temperature is used, the second-law efficiency decreases with collector area for both types of heating system. © 1986.
Source Title: Applied Energy
ISSN: 03062619
Appears in Collections:Staff Publications

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