吸收式制冷（ABR）被广泛认为是一种环境友好的制冷过程。ABR采用工作流体（WF）混合物来提取热量，通过不同设备内的一系列相变实现冷却。有机流体是很有前途的WF候选流体，因为它们避免了其他类型流体的缺点，如结晶、毒性等。目前的研究使用的选择标准很少（例如COP），但它们完全忽略了发电机后整流器的结构和操作及其对ABR性能的影响。每项研究中只考虑了很少的流体，而从未考虑与可持续性相关的流体指标。我们的目标是使用系统方法评估大量有机WF的性能，考虑与ABR运行性能和流体可持续性相关的多个不同指标，同时在单效应ABR中使用适当建模的整流器。 后者包括分离阶段的数量和馏分纯度，以及混合物成分及其组分的质量流量，作为最佳筛选配方中的决策参数。多标准评估方法确定了一个帕累托前沿，突出了重要指标之间的绩效权衡。后者包括ABR COP和（火用）效率、汽提级数、混合物组分的质量流量、循环高压和汽提馏出物与进料比。可持续性指标包括毒性、易燃性、生物降解概率、臭氧消耗和全球变暖潜能。对36种含有HCFC和HFC制冷剂的混合物以及各种吸收剂进行了说明，并将结果与商业使用的ABR流体NH3/H2O进行了比较。 观察到R32-DMF（二甲基甲酰胺）表现出良好的性能权衡。引文:2021篇虚拟会议论文

Absorption Refrigeration (ABR) has been widely considered as an environmentally benign cooling process. ABR employs a working fluid (WF) mixture to extract heat for cooling achieved through a series of phase changes within different equipment. Organic fluids are promising WF candidates as they avoid disadvantages of other types of fluids, such as crystallization, toxicity etc. Current studies use very few selection criteria (e.g. COP), while they completely omit the structure and operation of the rectifier after the generator and its impact on ABR performance. Only very few fluids are considered in each study, while sustainability-related fluid indicators are never considered. Our aim is to assess the performance of numerous organic WF using a systematic approach considering multiple different indicators pertaining to operating ABR performance and fluid sustainability, while employing a properly modelled rectifier in a single effect ABR. The latter includes the number of separation stages and the distillate purity as decision parameters together with the mixture composition and mass flowrates of its components, in an optimum screening formulation. A multi-criteria assessment method identifies a Pareto front that highlights performance trade-offs among important indicators. The latter include the ABR COP and exergertic efficiency, the number of stripping stages, the mass flowrates of the mixture components, the cycle high pressure and the stripping distillate-to-feed ratio. Sustainability indicators include toxicity, flammability, biodegradation probability ozone depletion and global warming potentials. The proposed approach is illustrated for 36 mixtures containing HCFC and HFC refrigerants with various absorbents and the results are compared with NH3/H2O, which is a commercially used ABR fluid. It is observed that R32-DMF (dimethylformamide) exhibits good performance trade-offs.