Coal gaseous fueled, low fuel-NOx gas turbine combustor

M. Sato, T. Ninomiya, T. Nakata, T. Yoshine, M. Yamada, S. Hisa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

From the view point of future coal utilization technology for the thermal power generation systems, the coal gasification combined cycle system has drawn special interest recently. In the coal gasification combined cycle power generation system, it is necessary to develop a high temperature gas turbine combustor using a low-BTU gas (LBG) which has high thermal efficiency and low emissions. In Japan a development program on the coal gasification combined cycle power generation system has started in 1985 by the national government and Japanese electric companies. In this program, is planned to develop the 1300 °C class gas turbines. However, in the case of using a hot type fuel gas leaning system, the coal gas fuel to be supplied to gas turbines will contain ammonia. Ammonia will be converted to nitric oxides in the combustion process in gas turbines. Therefore, low fuel-NOx combustion technology is one of the most important research subjects. This paper describes low fuel-NOx combustion technology for 1300 °C class gas turbine combustor using low BTU coal gas fuel. Authors have showed that the rich-lean combustion method is effective to decrease fuel-NOx (1). In general in rich-lean combustion method, the fuel-NOx decreases, as the primary zone becomes richer. But flameholding becomes very difficult in even rich primary zone. For this reason this combustor was designed to have a flameholder with pilot flame. Combustion tests were conducted by using a full scale combustor used in 150 MW gas turbine at the atmospheric pressure condition.

Original languageEnglish
Title of host publicationCoal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791879061
DOIs
Publication statusPublished - 1990
EventASME 1990 International Gas Turbine and Aeroengine Congress and Exposition, GT 1990 - Brussels, Belgium
Duration: 1990 Jun 111990 Jun 14

Publication series

NameProceedings of the ASME Turbo Expo
Volume3

Other

OtherASME 1990 International Gas Turbine and Aeroengine Congress and Exposition, GT 1990
CountryBelgium
CityBrussels
Period90/6/1190/6/14

ASJC Scopus subject areas

  • Engineering(all)

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