| Title |
Cycle Analysis of Diffusion Absorption Refrigerator |
| Keywords |
Diffusion absorption refrigerator ; 확산형 흡수식 냉장고 ; Auxiliary gas ; 보조가스 ; Ammonia aqueous solution ; 암모니아 수용액 |
| Abstract |
A diffusion absorption refrigerator is a heat-generated refrigeration system. It uses a three-component working fluid consisting of the refrigerant(ammonia), the absorbent (water) and the auxiliary gas(typically hydrogen). This system has no moving parts and the associated noise and vibration. In this study, the operating characteristics of diffusion absorption refrigerator are investigated through cycle modeling and simulation. System parameters considered in this study are the charged concentration of ammonia aqueous solution, the concentration difference between absorber inlet and outlet and the system pressure determined by the amount of auxiliary gas charged. It was found that there exists a critical value of concentration difference that maximizes the refrigerating capacity. And the lower the system pressure, the higher the refrigerating capacity. |