Optimization study of large‐scale low‐grade energy recovery from conventional Rankine cycle power plants | Zendy

Mohamed K. M. | Zendy; Bettle M. C. | Zendy; Gerber A. G. | Zendy; Hall J. W. | Zendy

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Optimization study of large‐scale low‐grade energy recovery from conventional Rankine cycle power plants

Author(s) -

Mohamed K. M.,

Bettle M. C.,

Gerber A. G.,

Hall J. W.

Publication year - 2009

Publication title -

international journal of energy research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.808

H-Index - 95

eISSN - 1099-114X

pISSN - 0363-907X

DOI - 10.1002/er.1629

Subject(s) - degree rankine , exergy , rankine cycle , organic rankine cycle , exergy efficiency , engineering , energy recovery , process engineering , heat exchanger , environmental science , power (physics) , waste management , environmental engineering , energy (signal processing) , mechanical engineering , waste heat , mathematics , thermodynamics , statistics , physics

This study evaluates large‐scale low‐grade energy recovery (LS‐LGER) from a conventional coal‐fired Rankine cycle (RC) as a ‘green’ option to offsetting the cost of treating pollution. An energy and exergy analysis of a reference generating station isolates the key areas for investigation into LS‐LGER. This is followed by a second law analysis and a detailed optimization study for a revised RC configuration, which provides a conservative estimate of the possible energy recovery. Cycle optimization based on specific power output, and including compact heat exchanger designs, indicates plant efficiency improvements (with high‐capacity equipment) of approximately 2 percentage points with reduced environmental impact. Copyright © 2009 John Wiley & Sons, Ltd.

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