| Title |
Performance Analysis and Test of a Small-Scale Natural Circulation Vertical Evaporator |
| Authors |
차상진(Sang-jin Cha) ; 김내현(Nae-Hyun Kim) ; 유진상(Jin-Sang Ryu) |
| Keywords |
자연순환 ; 증발 ; 농축장치 ; 과냉비등 ; 수직형 Natural circulation ; Evaporation ; Concentrator ; Subcooled boiling ; Vertical |
| Abstract |
In this study, an effort has been made to analyze the subcooled boiling heat transfer in a natural circulation vertical evaporator. To verify the analysis, a small-scale model was made and tested. The friction correlation by Ueda, void fraction and quality correlation by Saha and Zuber along with the superposition heat transfer model by Rohsenow yielded a satisfactory agreement with the model test data. The analysis was extended to simulate a 1 ton/day concentration system. Comparison with the test results of 1 ton/day prototype revealed that the data were overpredicted by 13%. The capacity of the prototype was 1.2 ton/day with COP of 5.77. |