期刊
FUEL
卷 82, 期 2, 页码 187-193出版社
ELSEVIER SCI LTD
DOI: 10.1016/S0016-2361(02)00201-6
关键词
pulverised coal; ignition; combustion; microwave plasma; burner
Microwave plasma is studied as an alternative to oil or gas fuel for ignition and stabilisation of burning of lean coal. The study is performed on an experimental set-up, which includes a burner with a microwave plasma generator, coal and air supply systems, and measurement equipment. Power and thermochemical characteristics of the coal-plasma interaction have been measured and analysed. The obtained results indicate an essential intensification of ignition and combustion processes in the microwave burner compared to those in conventional burners. In particular, it has been demonstrated that the microwave energy consumption is only about 10% of the required expenditure of oil or gas, measured in heat equivalent. A design of an industrial microwave-plasma burner is proposed. Prospects of such burner for applications at industrial boilers of power plants are discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.
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