COMPREHENSIVE MATHEMATICAL MODEL FOR BIOMASS COMBUSTION

被引:56
作者
Fatehi, H. [1 ]
Bai, X. S. [1 ]
机构
[1] Lund Univ, Div Fluid Mech, Dept Energy Sci, S-22100 Lund, Sweden
关键词
Biomass combustion; Drying; Intra-particle transport; Modeling; Pyrolysis; PULVERIZED WOOD COMBUSTION; PYROLYSIS; PARTICLE; BED; HEAT; TRANSPORT; KINETICS; MOMENTUM; MASS; GASIFICATION;
D O I
10.1080/00102202.2014.883255
中图分类号
O414.1 [热力学];
学科分类号
摘要
This article reports on an investigation of a comprehensive mathematical model for biomass combustion within the one-dimensional model framework. The model takes into account different thermochemical processes, e.g., moisture evaporation, pyrolysis, heterogeneous char reactions, intra-particle heat and mass transfer, and changes in thermo-physical properties. Different approaches to model the various processes involved in the thermochemical conversion of biomass are discussed, and a sensitivity study is carried out to investigate the performance of sub-models for the drying process. The comprehensive model is used to investigate the effect of moisture diffusion and vapor condensation inside the particle pores. The model is evaluated under different conditions, and satisfactory comparison of the model results with experimental data and model results from other researchers is observed.
引用
收藏
页码:574 / 593
页数:20
相关论文
共 40 条
[1]   A MODEL FOR PYROLYSIS OF WET WOOD [J].
ALVES, SS ;
FIGUEIREDO, JL .
CHEMICAL ENGINEERING SCIENCE, 1989, 44 (12) :2861-2869
[2]   Pyrolysis of biomass: improved models for simultaneous kinetics and transport of heat, mass and momentum [J].
Babu, BV ;
Chaurasia, AS .
ENERGY CONVERSION AND MANAGEMENT, 2004, 45 (9-10) :1297-1327
[3]  
Bird R.B., 1961, Transport Phenomena, V2nd
[4]   Modelling wood combustion under fixed bed conditions [J].
Bruch, C ;
Peters, B ;
Nussbaumer, T .
FUEL, 2003, 82 (06) :729-738
[5]   Modeling the combined impact of moisture and char shrinkage on the pyrolysis of a biomass particle [J].
Bryden, KM ;
Hagge, MJ .
FUEL, 2003, 82 (13) :1633-1644
[7]   Drying characteristics of wood cylinders for conditions pertinent to fixed-bed countercurrent gasification [J].
Di Blasi, C ;
Branca, C ;
Sparano, S ;
La Mantia, B .
BIOMASS & BIOENERGY, 2003, 25 (01) :45-58
[8]   Kinetics of primary product formation from wood pyrolysis [J].
Di Blasi, C ;
Branca, C .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2001, 40 (23) :5547-5556
[10]   Heat, momentum and mass transport through a shrinking biomass particle exposed to thermal radiation [J].
DiBlasi, C .
CHEMICAL ENGINEERING SCIENCE, 1996, 51 (07) :1121-1132