| Title |
A Study on the COP Improvement of Absorption Chillers byRecovering Heat from the Condenser |
| Keywords |
Absorption chiller ; 흡수식 냉동기 ; COP ; 성능계수 ; H2O/LiBr ; 물/리튬브로마이드 ; Heat recovery ; 배열회수 |
| Abstract |
In order to utilize the condensation heat of refrigerants in condenser on the absorption chiller system, the solution cooled condenser(SCC) was proposed using the weak solution of absorber as a cooling medium. The increase of COP with the increase of UA of the solution cooled condenser was approximately 0.009 in maximum with single effect one, and is about maximum 0.008 in occasion of double effect one with series flow compared to that without. In the case of heat exchanger, effectiveness is about 0.85, it's increments are 0.008 and 0.0072, respectively. And solution cooled condenser is more effective device in the single effect absorption system than double effect system for the principle of operation. On the other hand, as the solution split ratio increases when the value of UA is fixed, COP is increased and as the solution split ratio increases when the value of UA is fixed, COP is increased. If the flow rate of cooling water or the value of UA is reduced in order to increases the heat recovery of solution cooled condenser, heat recovery of solution cooled condenser is increased a little but COP is decreased as the system pressure is increased. |