| Title |
Numerical Study on the Performance of a Fin-and-Tube Condenser with Non-Uniform Air Distribution and Different Tube Types |
| Authors |
조다영(Da Young Cho) ; 함형창(Hyung Chang Hahm) ; 박창용(Chang Yong Park) |
| DOI |
http://dx.doi.org/10.6110/KJACR.2012.24.12.858 |
| Keywords |
핀-관 응축기 ; 공기 분포 ; 용량 ; 열관류율 ; 압력강하 Fin-and-tube condenser ; Air distribution ; Capacity ; U ; Pressure drop |
| Abstract |
A numerical study was performed to predict the performance of a fin-and-tube condenser. A condenser model was developed and verified by comparing the simulation results with experimental data for a R410A condenser in a residential air-conditioning system. The prediction error was 0.07% and -5.77% for the condenser capacity and pressure drop, respectively. In simulation results, the capacity and pressure drop of the condenser with even air velocity distribution were 0.67% and 12.93% higher than those with uneven distribution of air velocity. It was predicted by the model that the refrigerant distribution at the condenser inlet to the two first passes was not significantly influenced by the air distribution. The simulation results presented that the 1.49% of capacity and 64.6% of pressure drop were reduced by replacing helical microfin tubes with smooth tubes for the condenser. |