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http://dx.doi.org/10.5916/jkosme.2007.31.8.954

Design Of Air-Distribution System in a Duct  

Kang, Hyung-Seon (조선이공대 하이테크 CAD CAM과)
Cho, Byung-Ki (조선이공대 하이테크 CAD CAM과)
Koh, Young-Ha (조선이공대 하이테크 CAD CAM과)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.31, no.8, 2007 , pp. 954-960 More about this Journal
Abstract
The purpose of this paper is to obtain design method of air-distribution system. Air-distribution system is composed of blower, duct, diffusers and measuring equipment. The air-flow rate from each diffuser is not equal. The air-flow rate is calculated with the combined equations which are Bernoulli's equation, continuity equation and minor loss equations. Inlet condition and outlet condition are adapted in each duct system. Then square difference between function of maximum air-flow rate and minimum air-flow rate is used as an object function. Area of diffuser and velocity are established as constraints. To minimize the object function, the optimization method is used. After optimization the design variables are selected under satisfaction of constraints. The air-distribution system is calculated again with the result of optimized design variable. It is shown that the air-distribution system has the equal air-flow rate from diffusers.
Keywords
Air-distribution system; design variable; object function; constraint; minor loss;
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