Energy and exergy analysis of a solution cross-type absorption-resorption heat pump using NH3/H2O as working fluid

被引：0

作者：

Jin Z. ^{[1
]}

Feng L. ^{[1
]}

Li S. ^{[1
]}

机构：

[1] School of Energy and Environment, Southeast University, Jiangsu, Nanjing

来源：

Huagong Xuebao/CIESC Journal | 2023年 / 74卷

关键词：

absorption; exergy; kinetic modeling; resorption; solution cross-type;

D O I：

10.11949/0438-1157.20221586

中图分类号：

学科分类号：

摘要：

Ammonia water absorption-reabsorption heat pump (ARHP) is a special kind of absorption heat pump (AHP), which can reduce the working pressure and the temperature of the driving heat source. However, the COP of traditional ARHP is lower than the AHP. This paper proposed a cross-type ARHP, which optimized the pipelines to improve the COP. The thermodynamic model of the ARHP was established by MATLAB software, and energy and exergy analyses were carried out. The results show that the COP of the system can reach 1.564, which is 8.1% higher than that of the traditional system. The exergy loss of the system mainly comes from the generator and the resorber. The influence of generation temperature, absorption temperature and exergy temperature on exergy efficiency was further analyzed. The exergy efficiency of the ARHP increased by up to 6.9% compared with that of the AHP. The proposed system provides an essential reference for the advancement of absorption-reabsorption technology. © 2023 Chemical Industry Press. All rights reserved.

引用

页码：53 / 63

页数：10

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