Thermodynamic Parametric Study of a Supercritical Powerplant

In the present paper, both energy and exergy formulations are developed for thermodynamic analysis of a supercritical powerplant. A parametric study is conducted for the plant under various key thermodynamic parameters, including different operating pressures, temperatures, preheating of air to the...

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Bibliographic Details
Published in:Journal of thermophysics and heat transfer 2012-10, Vol.26 (4), p.629-637
Main Author: Vosough, Amir
Format: Article
Language:English
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Summary:In the present paper, both energy and exergy formulations are developed for thermodynamic analysis of a supercritical powerplant. A parametric study is conducted for the plant under various key thermodynamic parameters, including different operating pressures, temperatures, preheating of air to the boiler, ambient temperature, and variable condenser pressure, in order to determine the parameters that maximize plant performance. Also, the impact of excess air on boiler pollution (NO, CO, CO2CO2) is studied. The exergy loss distribution indicates that boiler irreversibilities yield the highest exergy losses in the powerplant. It shows that the key thermodynamic parameters have significant effects on the performance of the supercritical power cycle and exergy destruction in each component. [PUBLICATION ABSTRACT]
ISSN:0887-8722
1533-6808
DOI:10.2514/1.T3895