| 摘要: |
| 本文给出了真实溶液下吸收式热泵的理想过程模型。首先讨论了真实溶液溶液流量无限大的工况，推导出其温度提升系数，与理想溶液相比，用修正系数kr进行修正，kr主要取决于发生器溶液和吸收器溶液的活度系数，对于第一类吸收式热泵，kr大于1，对于第二类吸收式热泵，kr小于1；分别讨论了第一类吸收式热泵和第二类吸收式热泵的COP，第一类吸收式热泵的COP相比理想溶液过程降低，第二类吸收式热泵的COP相比理想溶液有所升高。在溶液循环量无限大的结果的基础上，讨论了有限循环流量的真实溶液工况，定义了有限流量时的温度提升系数，与真实溶液溶液流量无限大相比，修正系数kr还受溶液放气范围的影响，溶液放气范围越大，修正系数kr越低；当溶液流量有限时，kr小于溶液流量无限大的工况，COP也低于溶液流量无限大的工况；真实溶液下溶液流量无限大或者有限均满足φCOP1
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| 关键词: 真实溶液 吸收式热泵 温度提升系数 COP |
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| 基金项目: |
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| The Ideal Process Model for Absorption Heat Pumps with Real Solution |
| Xie Xiaoyun,Jiang Yi |
| (Building Energy Research Center) |
| Abstract: |
| 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, it always meets thatφCOP1
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| Key words: real solution absorption heat pump temperature lift factor COP |
