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发表时间：2022-10-04

发表刊物：大连理工大学学报

所属单位：化工学院

期号：3

页面范围：333-337

ISSN号：1000-8608

摘要：Exergy analysis of a double absorption heat transformers with a new solution cycle is carried out based on the thermodynamic properties of the aqueous solution of lithium bromide and the second law of thermodynamics. The results show that the new solution cycle has not only a wider available working range of absorption or evaporation temperature in absorbing evaporator, but also a higher exergy efficiency than those of the common cycle reported in literatures. When heat resource temperature, condense temperature and absorber temperature are 70, 25 and 150��C respectively, the exergy efficiency of the common solution cycle is 56.2%, while it is 65.7% for new solution cycle. When the second solution heat exchanger is set between the absorbing evaporator and generator, higher exergy efficiency of 69.6% could be obtained further. The effects of some operating parameters on exergy efficiency are also discussed.

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