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RESEARCH PAPERS: Gas Turbines: Cycle Innovations

A Semiclosed-Cycle Gas Turbine With Carbon Dioxide–Argon as Working Fluid

[+] Author and Article Information
I. Ulizar

Industria de Turbopropulsores-Ajalvir, Torrejon de Ardoz, Madrid, Spain

P. Pilidis

School of Mechanical Engineering, Cranfield University, Cranfield, Bedford, United Kingdom

J. Eng. Gas Turbines Power 119(3), 612-616 (Jul 01, 1997) (5 pages) doi:10.1115/1.2817028 History: Received February 01, 1996; Online November 19, 2007

Abstract

This paper describes the performance analysis of a semiclosed-cycle gas turbine. The working fluid is carbon dioxide and the fuel is low heating value gas synthesized from coal. The objective of the machine is to produce clean electricity with the smallest efficiency penalty. First, the thermodynamic properties of the gases in the cycle were obtained as a function of temperature and pressure. Then two performance simulation codes were developed. These have the ability of simulating different configurations of open, closed, and semiclosed cycles. The first code was used for cycle optimization and the second for off-design studies. The design and off-design performances of the machine are predicted. The production of clean electricity will be at the expense of a lower efficiency compared with current equipment. Finally, some critical issues for the development of such a gas turbine are identified.

Copyright © 1997 by The American Society of Mechanical Engineers
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