| Title |
The Influences of the Refrigerant Adulteration by an Absorbenton the Cooling Capacity and COP of the Absorption Chiller |
| Keywords |
Absorption chiller ; 흡수식 냉동기 ; COP ; 성능계수 ; Single-effect ; 1중 효용 ; Parallel- flow type ; 병렬흐름방식 ; Series-flow type ; 직렬흐름방식 |
| Abstract |
The purpose of the present work is to investigate the influence of the refrigerant adulteration by LiBr solution on the cooling capacity and COP for three different types of absorption chillers; a single-effect type, a series-flow double-effect type and a parallel-flow with double-effect type. A simulation program has been prepared for the cyclic analysis of absorption chillers. With some assumptions, the calculations have been performed by solving the mass balance equation, energy balance equation and the state equation simultaneously. The range of the LiBr concentration of refrigerant was 0% to 20% in the present study. For the single-effect absorption chiller, the maximum decrease in the cooling capacity was 10% at the 20% of LiBr concentration. For the double-effect chiller, the capacity was decreased by 11.1% for the parallel-flow type and the series-flow type. Also, the COP was reduced by 3.0% in single-effect, 2.8% in series-flow type(SR＝0.4) and 2.3% in parallel-flow type. |