Abstract Absorption refrigeration is a promising technology for the replacement of vapour compression systems. Few, conventional mixtures of organic components have been evaluated to date as working fluids using mainly operating performance indicators. The aim of this work is to evaluate 75 working fluid mixtures, including 18 novel options as candidates for single-effect absorption refrigeration processes. Multiple performance indicators are considered such as coefficient of performance, exergy efficiency, high cycle pressure, distillate-to-feed ratio and number of stages in the rectifier, mass flowrates, process economics and safety, health and environmental properties of fluids. The evaluation is performed within a systematic, stage-wise approach, which employs multi-criteria analysis. It is observed that mixtures of acetaldehyde with dimethylformamide or methylpyrolidone exhibit up to 40% and 22% lower costs per ton of cooling compared to ammonia-water and water-lithium bromide. The same mixtures also outperform or match the coefficient of performance of ammonia-water. Propionaldehyde and methyl formate with the same absorbents are also competitive options in smaller scale processes, while they exhibit better health, safety and environmental properties than acetaldehyde. The new mixtures are of equivalent or better safety, health and environmental performance than other well-known refrigerants.

中文翻译：

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基于技术经济、环境、健康和安全性能的吸收式制冷工作流体混合物的系统评估

摘要 吸收式制冷是一种很有前景的替代蒸汽压缩系统的技术。迄今为止，很少有传统的有机组分混合物被评估为主要使用操作性能指标的工作流体。这项工作的目的是评估 75 种工作流体混合物，包括 18 种作为单效吸收式制冷过程候选的新选择。考虑了多种性能指标，例如性能系数、火用效率、高循环压力、馏出物进料比和精馏器中的级数、质量流量、工艺经济性和安全性、流体的健康和环境特性。评估是在系统的、分阶段的方法中进行的，该方法采用多标准分析。据观察，与氨-水和水-溴化锂相比，乙醛与二甲基甲酰胺或甲基吡咯烷酮的混合物每吨冷却成本降低高达 40% 和 22%。相同的混合物也优于或匹配氨水的性能系数。具有相同吸收剂的丙醛和甲酸甲酯在小规模工艺中也是具有竞争力的选择，同时它们表现出比乙醛更好的健康、安全和环境特性。与其他知名制冷剂相比，新混合物具有同等或更好的安全、健康和环境性能。具有相同吸收剂的丙醛和甲酸甲酯在小规模工艺中也是具有竞争力的选择，同时它们表现出比乙醛更好的健康、安全和环境特性。与其他知名制冷剂相比，新混合物具有同等或更好的安全、健康和环境性能。具有相同吸收剂的丙醛和甲酸甲酯在小规模工艺中也是具有竞争力的选择，同时它们表现出比乙醛更好的健康、安全和环境特性。与其他知名制冷剂相比，新混合物具有同等或更好的安全、健康和环境性能。