Xie Xiaoyun, Jiang Yi. The Ideal Process Model for Absorption Heat Pumps with Real Solution[J]. Journal of Refrigeration, 2015, 36(1).
DOI:
Xie Xiaoyun, Jiang Yi. The Ideal Process Model for Absorption Heat Pumps with Real Solution[J]. Journal of Refrigeration, 2015, 36(1).DOI: 10.3969/j.issn.0253-4339.2015.01.013.
The Ideal Process Model for Absorption Heat Pumps with Real Solution
An ideal process model based on real solution for absorption heat pump is obtained in this paper. First
temperature lift factor is derived for real solution with infinite solution flow rate
and a correction factor kr is used to consider the difference with ideal solution
which is mainly dependent on the activity coefficient of solution in the generator and the absorber. For absorption heat pump
kr is higher than 1 and the COP is lower than that with ideal solution; for absorption heat transformer
kr is lower than 1 and the COP is higher than that with ideal solution. Then for real solution with finite flow rate
temperature lifting factor is defined and compared with solution of infinite flow rate. The correction factor kr is lower for real solution with finite flow rate and influenced by the concentration difference of solution
and the higher the concentration difference
the lower the kr. The COP for solution with finite solution flow rate is lower than the COP with infinite solution flow rate. Whatever the flow rate of real solution is infinite or finite
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Related Institution
Key Laboratory of Thermal Fluid Science and Engineering of Ministry of Education, School of Energy & Power Engineering, Xi'an Jiaotong University
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