| Title |
Operating Characteristics of a Bubble Pump for Diffusion-Absorption Refrigerator |
| Keywords |
Diffusion absorption refrigerator ; 확산형 흡수식 냉동기 ; Bubble pump ; 기포펌프 ; Generation rate of vapour ; 냉매증기발생량 ; Circulation rate of weak solution ; 희용액 순환량 ; Pumping ratio ; 양액률 |
| Abstract |
Experimental investigation has been carried out to examine the operating characteristics of a bubble pump for diffusion absorption refrigerator. The effects of heat input and delivery height on generation rate of refrigerant vapor and circulation rate of solution have been investigated. As a result heat input and delivery height increase, circulation rate of solution increases. And the smaller the tube diameter, the larger the circulation rate of solution. Pumping ratio increases to a critical point and then decrease with the increase of heat input, and it increases with the increase in delivery height. In this paper, Marcus's analytical theory was also examined. It was found that the Marcus's analytical theory of a bubble pump was not appropriate for a bubble pump using ammonia aqueous solution as a working fluid. |