Numerical Analysis of Heat and Mass Transfer During Pyrolysis of Coal Particle

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2014, Vol. 31 ›› Issue (1): 59-66.

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Numerical Analysis of Heat and Mass Transfer During Pyrolysis of Coal Particle

LIU Xunliang, CAO Huan, WANG Gan, WEN Zhi

School of Mechanical Engineering, University of Science and Technology of Beijing, Beijing 100083, China

Received:2013-03-22 Revised:2013-06-11 Online:2014-01-25 Published:2014-01-25

Abstract

Abstract: A mathematical model is developed to analyze numerically coal pyrolysis and heat transfer inside a heated coal particle.Endothermic effect of decomposition and transpirational convective heat transfer are taken into account.A coupled comprehensive model was validated with experimental data of pulverized coal and large particles.Then,temperature history and coal pyrolysis of coal particle heated were analyzed numerically.Effects of endothermic of pyrolysis,transpirational convection,volatile content and particle size were investigated to understand physically transient temperature and volatile evolution of coal particle.

Key words: coal pyrolysis, heat and mass transfer, mathematical model

CLC Number:

TQ511.6

LIU Xunliang, CAO Huan, WANG Gan, WEN Zhi. Numerical Analysis of Heat and Mass Transfer During Pyrolysis of Coal Particle[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2014, 31(1): 59-66.

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Numerical Analysis of Heat and Mass Transfer During Pyrolysis of Coal Particle

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