| Title |
A Study on the Effect of the Heat Transfer Surface Position to the Condensation Heat Transfer |
| Keywords |
Condensation heat transfer ; 응축열전달 ; Dropwise condensation ; 액적응축 ; Filmwise condensation ; 막응축 ; Glacial condensation ; 빙상응축 |
| Abstract |
A study has been conducted to investigate the effect of the heat transfer surface position in the range of dropwise condensation, filmwise condensation, and glacial condensation. For dropwise condensation promoter, the heat transfer surface was evaporated by gold. As a result, heat transfer rate is almost same where the position of heat transfer surface is between 45 and 135 degree. It is found that heat transfer rate was reduced as subcooled degree was increased. And it is also found that if the subcooled degree becomes lower, the position of heat transfer surface is more effective. Adversely, if the subcooled degree becomes higher, the effectiveness of surface position is getting relatively lower. Regardless of the position, the transition temperature from dropwise condensation to filmwise condensation is in the vicinity of 80 K. |