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중온수 흡수식 냉동기용 유하 액막식 재생기의 전열관 성능 특성에 관한 연구
이준하(Joon-Ha Lee),김병련(Beyung-Leyean Kim),이광표(Gwang-Pyo Lee),박찬우(Chan-Woo Park) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
The objective of this study is to investigate the changes of the performance of a hot water absorption chiller as influenced by the characteristics of the heating tubes inserted in its generator. The absorbent and the refrigerant flowing inside the generator are LiBr and water, respectively. The experiments were done based on a 58% absorbent concentration. In the experiments, the inlet and outlet temperatures of the absorbent and the inlet and outlet temperature of the refrigerant in the generator are measured. Also, the pressure of the generator and the flow rate of the refrigerant and the absorbent we measured. A Labview program was used for the measurements. Tests were conducted on different types of heating tubes using the same experimental conditions and the values of the overall heat transfer coefficient are determined. With this, the type of heating tubes that results to the improvement of the performance of the absorption chiller can be identified.