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RESEARCH PAPERS: Gas Turbines: Combustion and Fuels

Effect of Pressure on Combustion Characteristics in LBG-Fueled 1300°C-Class Gas Turbine

[+] Author and Article Information
T. Nakata

Department of Aeronautics and Space Engineering, Tohoku University, Sendai 980-77, Japan

M. Sato, T. Ninomiya

Central Research Institute of Electric Power Industry, 2-6-1 Nagasaka, Yokosuka 240-01, Japan

T. Yoshine, M. Yamada

Toshiba Corporation, Heavy Apparatus Engineering Laboratory, 2-4 Suehiro-cho, Tsurumi-ku, Yokohama 230, Japan

J. Eng. Gas Turbines Power 116(3), 554-558 (Jul 01, 1994) (5 pages) doi:10.1115/1.2906855 History: Received March 01, 1993; Online April 24, 2008

Abstract

Developing integrated coal gasification combined cycle systems ensures that Japan will have cost-effective and environmentally sound options for supplying future power generation needs. Reduction of NOx emissions and increasing the inlet temperature of gas turbines are the most significant issues in gas turbine development in IGCC. The coal gasified fuel, which is produced in a coal gasifier of air blown entrained-flow type has a calorific value as low as 1/10 of natural gas. Furthermore, the fuel gas contains ammonia when a gas cleaning system is a hot type, and ammonia will be converted to nitrogen oxides in the combustion process of a gas turbine. The study is performed in 1300°C-class gas turbine combustor firing coal-gasifier fuel in IGCC power generation systems. In the previous study [1] the advanced rich-lean combustor of 150-MW class gas turbine was designed to hold stable combustion burning low-Btu gas fuel and to reduce fuel NOx emission that is produced from the ammonia in the fuel. By testing it under atmospheric pressure conditions, we have studied the effects of fuel parameters on combustor performances and listed the basic data for development applications. In this study, by testing it under pressurized conditions, we have obtained a very significant result through investigating the effect of pressure on combustion characteristics and wish to provide herein a summary of our findings.

Copyright © 1994 by The American Society of Mechanical Engineers
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