Thermodynamic Equilibrium Model and Exergy Analysis of a Biomass Gasifier-Reference-Cited by-同舟云学术

Thermodynamic Equilibrium Model and Exergy Analysis of a Biomass Gasifier

Published:2009-08-20 Issue:3 Volume:131 Page:
ISSN:0195-0738
Container-title:Journal of Energy Resources Technology
language:en
Short-container-title:

Author:

Srinivas T.¹,Gupta A. V. S. S. K. S.²,Reddy B. V.³

Affiliation:

1. School of Mechanical and Building Sciences, VIT University, Vellore 632 014, India

2. Department of Mechanical Engineering, JNT University, Hyderabad 500 081, India

3. Department of Mechanical Engineering, University of Ontario Institute of Technology, Oshawa, ON, L1H 7K4, Canada

Abstract

Biomass gasification involves the production of a gaseous fuel by partial oxidation of a solid fuel. Clean synthesis (syn) gas, produced from partial combustion of biomass, can be burnt in a gas turbine combustion chamber to run a biomass based combined cycle power plant. A thermochemical model has been developed to predict the gas composition and performance of a biomass gasifier based on thermodynamic equilibrium concept for different biomass materials. A simplified numerical method is applied to solve the thermochemical equilibrium reactions. The system consists of a pressurized circulating fluidized bed to produce the syn gas from the biomass. The effect of the relative air fuel ratio (RAFR), steam fuel ratio (SFR), and gasifier pressure has been examined on the gas composition, gasifier temperature, lower heating value of syn gas, and exergy efficiency of biomass gasifier to obtain a high yield from the biomass. It has been found that at lower values of RAFR and SFR, the heating value of the syn gas and the exergy efficiency of gasifier is high.

Publisher

ASME International

Subject

Geochemistry and Petrology,Mechanical Engineering,Energy Engineering and Power Technology,Fuel Technology,Renewable Energy, Sustainability and the Environment

Link

http://asmedigitalcollection.asme.org/energyresources/article-pdf/doi/10.1115/1.3185354/5608024/031801_1.pdf

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