| Title |
Prediction of Characteristics for the Air-side Particulate Fouling in Finned-Tube Heat Exchangers of Air Conditioners used in the Field |
| Authors |
안영철(Young-Chull Ahn) ; 정성학(Sung-Hak Jung) ; 황유진(Yu-Jin Hwang) ; 이창건(Chang-Gun Lee) ; 김두현(Doo-Hyun Kim) ; 정성일(Seong-Ir Jung) ; 이재근( Jae-Keun Lee) |
| Keywords |
열교환기 ; 입자상 파울링 ; 압력손실 ; 친수성 ; 접촉각 ; 공기조화기 Heat exchanger ; Particulate fouling ; Pressure drop ; Wettability ; Contact angle ; Air conditioner ; |
| Abstract |
The air-side particulate fouling in the heat exchangers of HVAC applications degrades the performances of cooling capacity, pressure drop across a heat exchanger, and indoor air quality. Indoor and outdoor air contaminants foul heat exchangers. An empirical modeling equation has been derived from the experimental results using accelerated tests and it showed good predictions of the fouling characteristics of the slitted finned tube heat exchangers. However the modeling equation predicts only the fouling characteristics of new heat exchangers and it can not predicts fouling characteristics obtained from actual field data which contains the effect of hydrophilicity deterioration. Therefore an modified modeling equation is proposed and it shows good predictions of the actual fouling characteristics of finned-tube heat exchangers. |