Energy and Exergy Analyses of an Existing Solar-Assisted Combined Cycle Power Plant
Source abstract
Abstract
Solar-assisted combined cycle power plants (CCPPs) feature the advantages of renewable clean energy with efficient CCPPs. These power plants integrate a solar field with a CCPP. This integration increases the efficiency of solar power plants while decreasing the CO2 emissions of the CCPPs. In this paper, energy and exergy analyses were performed for an existing solar-assisted CCPP. The overall thermal efficiency and the exergetic efficiency of each component in the power plant were calculated for different solar field capacities. Also, a parametric study of the power plant was performed. The analysis indicated that the exergetic efficiency of the power plant components has its lowest value in the solar field while the condenser has the lowest exergetic efficiency in the combined cycle regime of operation. Further, a parametric study revealed that the thermal efficiency and the exergetic efficiency of the power plant as a whole decrease with increasing ambient temperature and have their highest values in the combined cycle regime of operation. Owing to these results, an investigation into the sources of exergy destruction in the solar field was conducted.
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Research context
OpenAlex topics: Solar Thermal and Photovoltaic Systems · Thermodynamic and Exergetic Analyses of Power and Cooling Systems · Photovoltaic System Optimization Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute for Energy Systems and Technology, Mechanical Engineering Department, Technical University of Darmstadt, 64287 Darmstadt, Germany
Mechanical Power and Energy Department, Military Technical College, Cairo 11766, Egypt
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