Optimization study of large-scale low-grade energy recovery from conventional Rankine cycle power plants
✍ Scribed by K. M. Mohamed; M. C. Bettle; A. G. Gerber; J. W. Hall
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 578 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0363-907X
- DOI
- 10.1002/er.1629
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✦ Synopsis
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 referencegenerating 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.