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FLUID FLOW AND HEAT TRANSFER IN A SINGLE-PAN WOOD STOVE

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Author(s): RAJESH GUPTA | Dr. N.D. MITTAL

Journal: International Journal of Engineering Science and Technology
ISSN 0975-5462

Volume: 2;
Issue: 9;
Start page: 4312;
Date: 2010;
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Keywords: woodstove | buoyancy induced flow | heat transfer and fluid flow modeling.

ABSTRACT
This paper presents simulation of buoyancy induced flow in an analogue of a single pan wood stove. In the present analysis, flow through fuel bed is modeled as flow through porous medium and heat release in the bulk fluid due to combustion is represented by uniform generation of heat. The heat transfer and fluid flow model is then used to conduct a parametric study of the effects of various geometric and operating parameters namely spacing between the stove and pan, inlet radius, height, diffuser radius, outer radius, porosity of fuel bed and power. The results are discussed with relevance to stove design and performance. In general, the influence of these parameters is observed to be more pronounced on heat ransfer to pan and secondary mass flow rate than on primary flow rate. However, the effect of fuel bed porosity on both primary and secondary flow rates as well as heat transfer is significant.
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