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대구경 원관이 적용된 웨이브 휜-관 열교환기의 공기측 성능
이을종(Eul-Jong Lee),풍익(Yi Feng),심용섭(Yong-Sub Shim),김내현(Nae-Hyun Kim) 대한설비공학회 2012 대한설비공학회 학술발표대회논문집 Vol.2012 No.11
In this study, air-side performance of wave fin-and-tube heat exchangers having large diameter(12.7mm, 15.9mm) tubes was investigated. Eight samples having different tube rows were tested. For both configurations, the effect of tube row on j-factor was negligible. However, f-factor increased as the tube row decreased. The j-factor and f-factor of the tube diameter 12.7mm sample were approximately 32% and 26% higher than those of 15.9 mm sample.