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Exergy Analysis of Combined Gas Turbine-Air Bottoming Cycle
American Journal of Engineering Research (AJER) • 2014
Publication Information
Authors
S. A. Abdel Moneim et al
Keywords
Thermal power plant; supercharged boiler, combined cycle, energy; exergy; second-law efficienc, exergy destruction.
Journal
American Journal of Engineering Research (AJER)
Publisher
”,American Journal of Engineering Research (AJER)
Volume
02
Issue
12
Pages
321-333
publication.type
International
Paper Link
Open Link
Supplementary Materials
Not Available
Abstract
ABSTRACT
In this paper, energy and exergy analysis of a supercharged boiler combined cycle (SBCC) was carried out. A combination of a supercharged boiler (SB) and a heat recovery boiler (HRB) was investigated. The effects of the inlet temperature of the gas turbine, the excess air factor, and the compressor pressure ratio on the performance of the SBCC were studied. Comparisons between the SBCC and the conventional combined cycle were performed. The results indicated that the SBCC gives output power up to 2.1 times of that of the conventional combined cycle when compared at the same values of the operating parameters. However, the SBCC efficiency was found to be lower than the conventional combined cycle. The exergy analysis showed an advantage of SBCC over the conventional combined cycle.
In this paper, energy and exergy analysis of a supercharged boiler combined cycle (SBCC) was carried out. A combination of a supercharged boiler (SB) and a heat recovery boiler (HRB) was investigated. The effects of the inlet temperature of the gas turbine, the excess air factor, and the compressor pressure ratio on the performance of the SBCC were studied. Comparisons between the SBCC and the conventional combined cycle were performed. The results indicated that the SBCC gives output power up to 2.1 times of that of the conventional combined cycle when compared at the same values of the operating parameters. However, the SBCC efficiency was found to be lower than the conventional combined cycle. The exergy analysis showed an advantage of SBCC over the conventional combined cycle.