| CO2双缸滚动活塞膨胀机的实验研究 |
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| 引用本文： | 张美兰,马一太,李敏霞.CO2双缸滚动活塞膨胀机的实验研究[J].制冷学报,2012,33(3):5-8. |
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| 作者姓名： | 张美兰 马一太 李敏霞 |
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| 作者单位： | 中低温热能高效利用教育部重点实验室 天津大学热能工程系 天津 300072 |
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| 基金项目： | 国家863计划(2007AA05Z262)资助项目~~ |
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| 摘 要： | 通过实验研究分析了CO2双缸滚动活塞膨胀机的中间通道对其效率及膨胀比的影响。对CO2双缸滚动活塞膨胀机的中间通道进行了改进,同时减小了中间通道的长度和直径,并进行了相关实验,结果表明:膨胀机的入口最优工况为26℃,6.5MPa,回收功率最高达到200W,效率最高达到42.3%。在各种实验工况下,测得的膨胀比已经达到了2.2左右,已经比较接近CO2双缸滚动活塞膨胀机的设计膨胀比2.5,但仍有改进的空间。
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| 关 键 词： | 热工学 CO2 膨胀机 跨临界 实验分析 |
| 收稿时间： | 2011/12/14 0:00:00 |
Experiment Research of CO2 Two-Cylinder Rolling Piston Expander |
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| Zhang Meilan,Ma Yitai and Li Minxia.Experiment Research of CO2 Two-Cylinder Rolling Piston Expander[J].Journal of Refrigeration,2012,33(3):5-8. |
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| Authors: | Zhang Meilan Ma Yitai and Li Minxia |
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| Affiliation: | Zhang Meilan Ma Yitai Li Minxia(Key Laboratory of Medium-Low Temperature Energy Efficient Utilization of Ministry of Education,Department of Thermal Engineering,Tianjin University,Tianjin,300072,China) |
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| Abstract: | The influence of the intermediate channel of CO2 two-cylinder rolling piston expander on efficiency and expansion ratio is investigated in this paper.The channel is improved by decreasing its diameter and length at the same time.The experiment of the improved expander is carried out in this paper.26℃,6.5MPa is the optimum work condition of the test.The recovered power of the expander is up to 200W and the efficiency is 42.3%.The expander ratio has already gone to 2.2,which is very close to the theoretical ratio 2.5.However,there is still the room for improvement of the expander. |
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| Keywords: | Pyrology CO2 Expander Transcritical Experiment analysis |
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