Comparative Thermodynamic Analysis of Gas Turbine Systems with Turbine Blade Film Cooling

Abstract:

Since the gas turbine systems require active cooling to maintain high operating temperature while avoiding a reduction in the system operating life, turbine blade cooling is very important and essential but it may cause the performance losses in gas turbine. This paper deals with the comparative thermodynamic analysis of gas turbine system with and without regeneration by using the recently developed blade-cooling model when the turbine blades are cooled by the method of film cooling. Special attention is paid to investigating the effects of system parameters such as pressure ratio and turbine inlet temperature on the thermodynamic performance of the systems. In both systems the thermal efficiency increases with turbine inlet temperature, but its effect is less sensitive in simpler system

• Periodical: Advanced Materials Research (Volume 505)
• Pages: 539-543
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.505.539
• Online since: April 2012
• Authors: Kyoung Hoon Kim, Kyoung Jin Kim, Chul Ho Han
• Keywords: Blade Cooling, Gas Turbine, Regeneration, Thermodynamic Analysis, Turbine Inlet Temperature

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