Exergetic and ecological performance analyses of a gas turbine system with two intercoolers and two re-heaters. (1st April 2017)

• Record Type: Journal Article
• Authors: Gonca, Guven
• Is Part Of: Energy. Volume 124(2017)
• Page Start: 579
• Page End: 588
• Publication Date: 2017-04-01
• Subjects: Joule-Brayton cycle -- Gas turbine system -- Power density -- ECOP -- Exergy -- EFECPOD; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Energy consumption -- Periodicals; 333.7905
• DOI: 10.1016/j.energy.2017.02.096
• Languages: English
• ISSNs: 0360-5442

Abstract

Abstract: In this study, performance analyses of a gas turbine with two intercoolers and two re-heaters based on energetic, exergetic and ecological concepts such as power, power density, second-law efficiency (exergy efficiency), exergy destruction, ecological coefficient of performance (ECOP) and effective ecological power density (EFECPOD). The effects of turbine design parameters such as turbine speed, air mass flow rate, equivalence ratio, pressure ratio, turbine diameter, turbine length, heat transfer coefficient, residual gas fraction, turbine wall temperature, inlet pressure and inlet temperature on the performance characteristics have been investigated by taking temperature-dependent specific heats and heat transfer losses into consideration. Highlights: A comprehensive performance analysis model is developed for a gas turbine. Effects of design parameters on gas turbine performance are examined. Parametrical works are performed to optimize gas turbine performance.