| Title |
Flow Boiling of R-123/Oil Mixture in a Plain Tube Bundle |
| Authors |
이진욱(Jin-Wook Lee) ; 이재호(Jae-Ho Lee) ; 김내현(Nae-Hyun Kim) |
| Keywords |
오일 ; R-123 ; 흐름비등 ; 평활관 ; 관군 Oil ; R-123 ; Flow boiling ; Plain tube ; Tube bundle |
| Abstract |
The effect of oil on flow boiling of R-123 in a plain tube bundles was experimentally investigated for a range of quality and heat flux. It is shown that the heat transfer coefficient decreased as the oil concentration increased. Comparison with the previous pool boiling data reveals that the reduction of heat transfer coefficient by oil is more pronounced in pool boiling, and the difference increased with the increase of oil concentration and heat flux. Within the experimental range, the variation of mass flux or quality has negligible effect on the heat transfer coefficient. |