| Title |
Heat Transfer and Pressure Drop Characteristics of Heat Exchangers Having Plain Fins Under Dry and Wet Conditions |
| Keywords |
Wet surface ; 습표면 ; Dry surface ; 건표면 ; Heat transfer coefficient ; 열전달계수 ; Plain fin ; 평판휜 ; Heat exchanger ; 열교환기 ; Pressure drop ; 압력손실 |
| Abstract |
In this study, dry and wet surface pressure drop and heat transfer characteristics of heat exchangers having plain fins were investigated. Nine samples having different fin pitches and rows were tested. The wet surface heat transfer coefficient was reduced from experimental data using enthalpy-potential method. The wet surface heat transfer coefficients were approximately equal to the dry surface values except for one row configuration. For one row configuration, the wet surface heat transfer coefficients were approximately 30% lower than the dry surface values. For the pressure drop, the wet surface yielded approximately 30% higher values compared with the dry surface counterpart. Data were compared with existing correlations. |