| Title |
The Study of Performance Evaluation Coefficient of Fin-and-Tube Heat Exchangers with Frosting |
| Keywords |
Fin-and-tube heat exchanger ; 핀-관 열교환기 ; Performance evaluation coefficient ; 성능평가계수 ; Discrete ; 단절형 ; Straight ; 일체형 ; Dry frosting test ; 건조표면 착상실험 ; Wet frosting test ; 습표면 착상실험 |
| Abstract |
For the study of performance evaluation on different shape heat exchangers that have the same energy consumption in a refrigerator, we make performance evaluation coefficient(PEC) which can distinguish performance of different shape heat exchangers. The results were reported in order to compare with for the dry frosting and wet frosting test as various definition of PECs. Results showed that PEC of dry frosting test is higher than that of wet frosting test because attached water droplet increases pressure drop of air-side then this decreases performance of heat exchanger. |