| 摘要: |
| 针对跨临界CO2压缩制冷系统制取冷量以消耗高品位能量为代价的问题，本文依据能量梯级利用原理，提出双温低品位热驱动的新型CO2-[emim][Tf2N]吸收式制冷循环的新流程，在构建该制冷循环数学模型的基础上，搭建测试双温驱动吸收制冷循环性能的实验装置，利用模拟和实验方法分析了操作参数对系统性能的影响规律。在定流量的条件下，研究驱动热源温度、冷却水入口温度以及载冷剂入口温度等操作参数对新系统性能的影响规律，结果表明双温驱动新型吸收制冷系统不仅可实现高效制冷，而且最低制冷温度可达到﹣15.2 ℃，研究结果为CO2-离子液体制冷系统的理论设计计算提供实用的数据基础。 |
| 关键词: 双温低品位热源 CO2-[emim][Tf2N] 吸收制冷系统 传热传质 系统性能 |
| DOI： |
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| 基金项目:国家自然科学基金（51205035&51566014）资助项目。 |
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| Experimental Study on Performances of a New Absorption Refrigeration System Driven by Double Low-grade Energy |
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He Lijuan1, Zhu Chaoqun1, Yang Bin2, Wang Lifang1, Zhang Shaohua2, Xiao Zhuonan1
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| (1.Institute of Environment and Energy, Inner Mongolia University of Science and Technology;2.BaoTou Teachers’ College, Inner Mongolia University of Science and Technology) |
| Abstract: |
| To solve the problem caused by transcritical CO2 compression refrigeration system, a new absorption refrigeration system driven by double low-grade energy was presented based on the principle of energy cascade utilization. Based on mathematical model for each component of the system, an experimental equipment driven by the double low-grade energy were developed. The effect of operating parameters, such as hot source temperature, cooling water inlet temperature and cooled medium, on the system performances had been investigated under constant flow rate. The results showed that the new absorption refrigeration system owned a higher COP and the lowest refrigeration temperature ﹣15.2 ℃ under the same experimental conditions. The study results are helpful to the optimal design. |
| Key words: double low-grade energy CO2-[emim][Tf2N] absorption refrigeration system heat and mass transfer system performance |
