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http://dx.doi.org/10.6112/kscfe.2016.21.2.106

CHANGES IN STAGNATION REGION AND RESIDENCE TIME OF COOLING WATER FOR VARIOUS FLOW CHANNEL GEOMETRY OF WATER COOLING GRATE  

Song, D.K. (Environmental and Energy Systems Research Div., Korea Institute of Machinery and Materials)
Kim, S.B. (Environmental and Energy Systems Research Div., Korea Institute of Machinery and Materials)
Park, D.W. (GEQ Solution)
Publication Information
Journal of computational fluids engineering / v.21, no.2, 2016 , pp. 106-111 More about this Journal
Abstract
Waste-to-energy facilities including incinerators are known as an efficient method to reduce wastes. In waste-to-energy facilities, more efficient cooling system is still needed for grates as the energy density of waste increased. For better cooling performance with the water-cooled grates, optimal design of cooling water pathways is highly beneficial. We performed numerical investigation on fluid flow and residence time of cooling water with change of the geometry of the cooling water pathway. With addition of round shaped guide vanes in the water pathway, the maximum residence time of flow is reduced(from 4.3 sec. to 2.4 sec.), but there is no significant difference in pressure drop between inlet and outlet, and average residence time at the outlet. Furthermore the flow stagnation region moves to the outlet, as the position of the round shaped guide vanes is located to the neck point of pathways.
Keywords
Water-Cooled Grate; Stagnation Region; Residence Time;
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Times Cited By KSCI : 1  (Citation Analysis)
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