一重効用ダブルリフト吸収式冷凍機の開発

抄録

A large amount of waste heat is exhausted in the industrial and commercial field. In particular, low temperature heat such as that below 80~90°C is not utilized enough. The single-effect double-lift absorption chiller is driven by hot water around 95°C and utilizes it until under a 55°C return (outlet) temperature. Therefore, it is expected to recover unused low temperature waste heat, and to utilize district hot water for cooling uses in the summer. This chiller is assumed to be useful mainly in European market. In this study, we developed a prototype and conducted its performance test. Consequently, we obtained a prospect that even more heat recovery can be realized by adopting parallel-flow cycle and two-step structure for the evaporator and absorber in this single-effect double lift absorption chiller.