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Air Handling Unit Utilizing Water/Air Direct Contact Heat Exchanger with Mesh  

Jeon, Yong-Han (Graduate School, In-ha University)
Kim, Jong-Yoon (Mechanical Engineering Research Institute In-ha University)
Kim, Nam-Jin (Department of Nuclear & Energy Engineering, Cheju National University)
Seo, Tae-Boem (Department of Mechanical Engineering, In-ha University)
Kim, Chong-Bo (Graduate School, In-ha University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.20, no.1, 2008 , pp. 75-80 More about this Journal
Abstract
The objective of this research was to investigate the enhancement of heat transfer by mesh in water/air direct contact air conditioning system. Mesh is inserted as a turbulent promoter in front of the water injection nozzle. The heat transfer characteristics with and without mesh and the effect of the number of inserted mesh and mesh porosity size have been studied experimentally. Inserted mesh improves heat transfer efficiency compared to non~inserted mesh system and heat transfer efficiency increased as the number of mesh is increased. Meanwhile, heat transfer efficiency decreased as the porosity of the mesh is increased. With inserted mesh, inlet and outlet temperature difference of air increased more than 50%. Heat exchange time of water/air to reach the 100% humidity decreased less than 30%. This result shows inserted mesh can enhance the performance of the water/air direct contact air conditioning system.
Keywords
Water/air direct contact air conditioning system; Heat transfer;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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