COMPARISON OF DIFFERENT EVAPORATION RATE MODELS FOR DRYING OF A SINGLE WOOD PARTICLE

摘要：

　　Drying process of single woody biomass particle is modeled using a multiphase porous media model which is coupled to different evaporation rates.Three different models; Equilibrium model,Heterogeneous reaction model and heat sink model,are used to model the evaporation rate.Resulting system of ordinary differential equations (ODEs) from the models is solved using LIMEX solver in a FORTRAN based computer code.The models are validated with experimental results from the literature.Further comparisons between predictions and measurements are made for different conditions of external temperature,velocity of air flow and initial moisture over the conditions encountered in drying section of fixed-bed updraft gasifiers.The aim of this study is to evaluate the accuracy of these different evaporation rate models in considered conditions.

关键词： convective air drying woody biomass particle evaporation rate

作者: M.Jalili A.Anca-Couce N.Zobel F.Behrendt

作者单位: Department of Energy Engineering,Berlin Institute of Technology Sekr.RDH 9,Fasanenstr.89,10623 Berlin,Germany

会议类型: 国际会议

会议名称: The 18th International Drying Symposium Conference(第十八届国际干燥学术大会(IDS2012))

会议地点: 厦门

会议语种:英文

页码: 1-8

在线出版日期: 2012-01-11（万方平台首次上网日期，不代表论文的发表时间）