TRANSIENT TEMPERATURE AND CHAR CONVERSION PROFILES IN WOOD DURING DEVOLATILIZATION IN A FLUIDIZED BED COMBUSTOR

摘要：

　　Transient temperature history, char conversion profiles, and the temperature window for devolatilisation are presented for a wood particle in a Fluidised Bed Combustor (FBC) using a three dimensional transient model.Cube shaped wood particles of size 10 mm and 25 mm, with initial moisture content (6%, 12%, and 50%) were studied.Experiments were conducted in a fluidized bed combustor of 130 mm diameter with a bed height of 130 mm, to validate the model for total devolatilisation time.The temperature gradient within the wood particle was found to be steeper across the grain (transverse direction) than along the grain (longitudinal direction).The temperature-window of devolatilization was found to be about 550-850 K under the conditions of the study.

作者: Ruben Sudhakar Dhanarathinam Ajit Kumar Kolar

作者单位: National Institute of Technology Karnataka,Surathkal,India Indian Institute of Technology Madras,Chennai,India

会议类型: 国际会议

会议名称: The 11th International Conference on Fluidized Bed Technology(CFB-11)(第十一届流化床技术国际会议)

会议地点: 北京

会议语种:英文

页码: 815-821

在线出版日期: 2014-05-14（万方平台首次上网日期，不代表论文的发表时间）