COMPREHENSIVE EVALUATION SYSTEM FOR COAL QUALITY IMPACTS ON BOILER PERFORMANCE

摘要：

Since coal quality has great impacts on boiler performance, it is quite effective to select coal brands and their blending condition for trouble-free and cost-minimum operation of electricity or steam generating plant. New coal quality evaluation indices for predicting practical performance on actual boilers were developed through long-term fundamental research and pilot-scale tests. These evaluation methods were compiled into computer software named “Idemitsu Coal Assessment System (I-CAS). This software provides highly accurate prediction of plant performance for specific boiler operating condition by inputting coal analysis data. Plant performance on coal handling, spontaneous heating, grinding, combustion, NOx emission, slagging, air heater deposit, EP, FGD and ash utilization are quantitatively predicted. Therefore, it is also useful for improving boiler efficiency by simulating the effects of operating and coal blending conditions. This paper describes methodology applied to evaluate coal quality impacts on boilers and major outputs from this system.

关键词： Coal quality Evaluation Boiler

作者: Toru YAMASHITA Qingning CHENG Toshimitsu ASOTANI

作者单位: Coal & Environment Research Laboratory, Industrial Energy Department, Idemitsu Kosan Co., Ltd., Japa Engineering Design and Technical Department, Idemitsu Engineering Co., Ltd., Japan

会议类型: 国际会议

会议名称: 第六届煤燃烧国际会议(The 6th International Symposium on Coal Combustion)

会议地点: 武汉

会议语种:英文

页码: 288-293

在线出版日期: 2007-12-01（万方平台首次上网日期，不代表论文的发表时间）