Combustibility estimation of imported coals by a model furnace system.
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概要
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Pulverized coal combustion experiments of seven imported coals from Australia, Canada, China and South Africa have been carried out to estimate their com-bustibilities. The unburned carbon in flyash, the conversion ratio of fuel nitrogen to NO and the NO reduction by staging were estimated to ascertain the impact of coal properties. A down-fired 20cm ID tunnel furnace was used in this study. The experimental results as follows;<BR>1) Because the fuel ratio (=fixed carbon/volatile matter) is closely related with weight percent of unburned carbon in flyash, it can be an important index in predicting unburned carbon in the coal-fired boiler.<BR>2) The formation of NO is considerably influenced by not only the coal nitrogen content but the fuel ratio.<BR>3) The percentage of NO reduction by staging is decreased with increasing the fuel ratio.
- 一般社団法人 日本エネルギー学会の論文
一般社団法人 日本エネルギー学会 | 論文
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