Journal of the Korean Society for Geothermal and Hydrothermal Energy (한국지열·수열에너지학회논문집)

Korean Society for Geothermal and Hydrothermal Energy (한국지열·수열에너지학회)
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Performance Comparison of a Welded Plate Heat Exchanger and Shell and Tube Heat Exchanger with Same Heat Transfer Area

동일 전열면적을 갖는 용접식 판형열교환기와 관류형 열교환기의 성능 비교

  • Ham, Jeonggyun (Department of Mechanical Engineering, Graduate School of Chosun University) ;
  • Kim, Min-Jun (Korea Refrigeration and Air Conditioning Assessment Center) ;
  • An, Sungkook (R&D Center, Samil Co. Ltd) ;
  • Cho, Honghyun (Department of Mechanical Engineering, Chosun University)
  • Received : 2019.11.12
  • Accepted : 2019.11.29
  • Published : 2019.12.01
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Abstract

In this study, the performance of a shell and tube heat exchanger (STHE) and welded plate heat exchanger (WPHE) was measured experimentally. The pass numbers of the STHE was changed by 1, 2 and 4. As a result, the WPHE showed 2.1 times higher heat exchange capacity than that of the STHE. In case of pressure drop, the STHE with 1 and 2 pass number has a lower pressure drop than the WPHE, while the STHE with 4 pass presented higher pressure drop than the WPHE. The performance index considering the heat exchange capacity and pump consumption power, showed in oder of STHEPass1 > STHEPass2 > W PHE > STHEPass4 under the same flow rate. Therefore, when the WPHE was designed optimally under same operating condition with STHE, the maintenance fee and space can be reduced effectively by using the WPHE.

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