| Title |
An Experimental Study on the Performance of a Brazed Plate Heat Exchanger |
| Keywords |
Plate heat exchanger ; 판형 열교환기 ; Refrigerant R-22(R-22 냉매 ; Chevron angle ; 쉐브론각 ; Heat transfer coefficient ; 열전달계수 ; Pressure drop ; 압력강하 |
| Abstract |
An experimental study on the performance evaluation of a brazed plate heat exchanger with 10 USRT of normal cooling capacity has been carried out. In the present study, a brazed plate heat exchanger was tested at a chevron angle 25 with refrigerant R-22. Refrigerant mass flux was ranged from 23 to 58 kg/m2s in condensation, and from 22 to 53 kg/m2s in evaporation. The heat transfer coefficients and pressure drops are increased as the mass flux increases. The water side pressure drop is increased as the cooling water flow rate and chilled water flow rate increase, while mass flux has little effect. It is also shown that the system performance can be improved by enlarging condensation heat transfer area. |