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Horizontal Air-Jet Effect on the Natural Convection around a Range-Hood System  

Kim Byoung Guk (Graduate School of Industry and Engineering, Seoul National University of Technology)
Choi Hyoung Gwon (Department of Mechanical Engineering, Seoul National University of Technology)
Yong Ho Taek (Department of Mechanical Engineering, Seoul National University of Technology)
Lee Myeong Ho (Department of Mechanical Engineering, Seoul National University of Technology)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.17, no.4, 2005 , pp. 333-340 More about this Journal
Abstract
Horizontal air-jet effect has been utilized in some air conditioning systems in order to control the contaminated air indoor. In the present study, the flow and heat transfer of the contaminated air from a range hood system has been investigated with or without horizontal air-jet effect when the hood fan is on or off. For the present numerical experiment, PAT Flow code has been used. From the present numerical simulations, it has been shown that the air jet of a range hood generates coanda effect confining the contaminated air in a certain region. Furthermore, the qualitative relation between the flow rate of the capture air jet and the distribution pattern of the contamination has been discussed.
Keywords
Horizontal air-jet; Natural convection; Contaminated air; Optimal velocity;
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