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Experimental Investigation of an Cross-Flow Air-Cooled Plate Heat Exchanger with Single-Wave and Double-Wave Plates  

Kim, Min-Sung (Solar Thermal and Geothermal Research Center, Korea Institute of Energy Research)
Paik, Young-Jin (Solar Thermal and Geothermal Research Center, Korea Institute of Energy Research)
Lee, Jae-Hoon (Solar Thermal and Geothermal Research Center, Korea Institute of Energy Research)
Park, Seong-Ryong (Solar Thermal and Geothermal Research Center, Korea Institute of Energy Research)
Ra, Ho-Sang (Solar Thermal and Geothermal Research Center, Korea Institute of Energy Research)
Jeong, Jae-Hoon (Research and Development Center, LHE Co., Ltd.)
Lim, Hyug (Research and Development Center, LHE Co., Ltd.)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.21, no.6, 2009 , pp. 347-354 More about this Journal
Abstract
Experimental study on a cross-flow air-cooled plate heat exchanger (PHE) was performed. Two types of PHEs were manufactured either with single-wave plates or with double-wave plates in parallel. Cooling air flows through the PHEs in a crosswise direction against internal hot water. The heat exchanger aims to substitute open-loop cooling towers with closed-loop water circulation, which guarantees cleanliness and compactness. In this study, prototype single-wave and double-wave PHEs were designed and tested in a laboratory scale experiments. From the tests, the double-wave PHE shows approximately 50% enhanced heat transfer performance compared to the single-wave PHE. However, the double-wave PHE costs 30% additional pressure drop. For the commercialization, a wide channel design for air flow would be essential for performance and reliability.
Keywords
Air-cooled plate heat exchanger; Single-wave; Double-wave; Cross-flow; Cooling tower;
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