| Title |
Type 2 Absorption Cycle to Transport Energy in the Long Distance for District Cooling Application |
| Keywords |
Type 2 absorption system ; 2종 흡수식 시스템 ; Solution transportation absorption system ; STA, 용액 수송형 흡수식 시스템 ; District cooling ; 지역냉방 ; LNG cold energy ; LNG 냉열 |
| Abstract |
The objective of this paper is to develop a new energy transport system for district cooling application by using type 2 absorption cycle. Cold energy from the LNG storage system is utilized as the cooling source of the condenser and the rectifier. The pressures of the system, UAs of the evaporator and the desorber, and the inlet temperatures of the refrigerant to each component are considered as the key parameters. The results show that UA of the evaporator is more dominant parameter on COP than that of the desorber and the optimum system pressure for the demand side is estimated as 525 kPa. For the present system, it is recommended that the refrigerant inlet temperature of the evaporator be lower than 4.3℃ for long-distance transportation. It is concluded that the cold energy from the LNG storage system can be effectively applied to the long-distance transportation system for district cooling application with the type 2 absorption cycle. The optimum operation conditions are also predicted from the parametric analysis. |