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http://dx.doi.org/10.5293/KFMA.2011.14.2.041

Performance Prediction of a Gas Turbine Using CO2 as Working Fluid  

Yang, Hyun-Jun (인하대학교 대학원)
Kang, Do-Won (인하대학교 대학원)
Lee, Jong-Jun (인하대학교 대학원)
Kim, Tong-Seop (인하대학교 기계공학부)
Publication Information
The KSFM Journal of Fluid Machinery / v.14, no.2, 2011 , pp. 41-46 More about this Journal
Abstract
This study investigated the changes in performance and operating characteristics of an F-class gas turbine according to the change of working fluid from air to carbon dioxide. The revised gas turbine is the topping cycle of the semi-closed oxy-fuel combustion combined cycle. With the same turbine inlet temperature, the $CO_2$ gas turbine is expected to produce about 85% more power. The main contributor is the greater compressor mass flow and the added oxygen flow for the combustion. Compressor pressure ratio increases about 50%. However, the gas turbine efficiency reduces about 10 %. Modulation of inlet guide vane to reduce the compressor inlet mass flow, the major purpose of which is to reduce the compressor inlet Mach number, was also performed.
Keywords
Oxy-fuel combustion; $CO_2$; Mass flow; Pressure ratio; TIT; IGV(Inlet Guide Vane);
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Times Cited By KSCI : 1  (Citation Analysis)
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