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Experimental and computational studies on a gasifier based stove

Varunkumar, S and Rajan, NKS and Mukunda, HS (2012) Experimental and computational studies on a gasifier based stove. In: Energy Conversion and Management, 53 (1). pp. 135-141.

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Official URL: http://dx.doi.org/10.1016/j.enconman.2011.08.022

Abstract

The work reported here is concerned with a detailed thermochemical evaluation of the flaming mode behaviour of a gasifier based stove. Determination of the gas composition over the fuel bed, surface and gas temperatures in the gasification process constitute principal experimental features. A simple atomic balance for the gasification reaction combined with the gas composition from the experiments is used to determine the CH(4) equivalent of higher hydrocarbons and the gasification efficiency (eta g). The components of utilization efficiency, namely, gasification-combustion and heat transfer are explored. Reactive flow computational studies using the measured gas composition over the fuel bed are used to simulate the thermochemical flow field and heat transfer to the vessel; hither-to-ignored vessel size effects in the extraction of heat from the stove are established clearly. The overall flaming mode efficiency of the stove is 50-54%; the convective and radiative components of heat transfer are established to be 45-47 and 5-7% respectively. The efficiency estimates from reacting computational fluid dynamics (RCFD) compare well with experiments. (C) 2011 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Gasifier stove;Biomass combustion;Gasification efficiency
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 27 Jan 2012 12:20
Last Modified: 27 Jan 2012 12:20
URI: http://eprints.iisc.ernet.in/id/eprint/43207

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