| Title |
An Experimental Study on the Heat-Transfer and Pressure-Drop Characteristics of Ethylene-Glycol Water in a Plate Heat Exchanger |
| Authors |
Hyun Joon Chung ; Hoon Kang ; Yongchan Kim ; Kwangjin Lee ; Dongkyun Lee ; Wonhee Lee ; Wan-Soon Shine |
| DOI |
http://dx.doi.org/10.6110/KJACR.2018.30.8.358 |
| Keywords |
에틸렌 글리콜 수용액 ; 열전달 ; 판형 열교환기 ; 압력강하 Ethylene-glycol water ; Heat transfer ; Plate heat exchanger ; Pressure drop |
| Abstract |
Having desirable thermal characteristics, such as a low freezing point, a high boiling point, better stability over a wide range of temperatures, and good thermophysical properties, ethylene-glycol water is a very popular antifreeze and heat-transfer fluid in numerous commercial and industrial applications. In this study, the heat-transfer and pressure-drop characteristics of a brazed-plate heat exchanger were investigated experimentally using ethylene-glycol water and R410a as the two fluids in a plate heat exchanger. The heat-transfer rate and pressure drop of the ethylene-glycol water were measured by changing inlet temperature, volumetric flow rate, and composition. The inlet temperature, volumetric flow rate, and composition were varied from 12.0 to 30.0℃, 4.9 to 26.8 lpm, and 30 to 55 percent, respectively. In addition, correlations were proposed to predict the heat-transfer coefficient and friction factor. |