Biomass gasification—a substitute to fossil fuel for heat application

Dasappa, S and Sridhar, HV and Sridhar, G and Paul, PJ and Mukunda, HS (2003) Biomass gasification—a substitute to fossil fuel for heat application. In: Biomass and Bioenergy, 25 (6). pp. 637-649.

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Abstract

The paper addresses case studies of a low temperature and a high temperature industrial heat requirement being met using biomass gasification. The gasification system for these applications consists of an open top down draft reburn reactor lined with ceramic. Necessary cooling and cleaning systems are incorporated in the package to meet the end use requirements. The other elements included are the fuel conveyor, water treatment plant for recirculating the cooling water and adequate automation to start, shut down and control the operations of the gasifier system. Drying of marigold flower, a low temperature application is considered to replace diesel fuel in the range of $125-150 1\hspace{2mm} h^{-1}$. Gas from the $500 kg\hspace{2mm} h^{-1}$, gasifier system is piped into the producer gas burners fixed in the combustion chamber with the downstream process similar to the diesel burner. The high temperature application is for a heat treatment furnace in the temperature range of 873–1200 K. A $300 kg \hspace{2mm}h^{-1}$ of biomass gasifier replaces 2000 1 of diesel or LDO per day completely. The novelty of this package is the use of one gasifier to energize 16 burners in the 8 furnaces with different temperature requirements. The system operates over 140 h per week on a nearly nonstop mode and over 4000 h of operation replacing fossil fuel completely. The advantage of bioenergy package towards the economic and environmental considerations is presented.

Item Type:	Journal Article
Publication:	Biomass and Bioenergy
Publisher:	Elsevier
Additional Information:	Copyright of this article belongs to Elsevier.
Keywords:	Biomass;Thermal;Diesel substitution;Gasifiers;High temperature;Drying
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	17 May 2007
Last Modified:	19 Sep 2010 04:38
URI:	http://eprints.iisc.ac.in/id/eprint/10993

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