| 矿井救生舱空调CO2在毛细管内的节流仿真 |
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| 引用本文： | 吴玮,林用满,高日新,宋文吉,冯自平.矿井救生舱空调CO2在毛细管内的节流仿真[J].中国煤炭,2011,37(11). |
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| 作者姓名： | 吴玮 林用满 高日新 宋文吉 冯自平 |
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| 作者单位： | 1. 中国科学院广州能源研究所可再生能源与天然气水合物重点实验室,广东省广州市,510640;中国科学院研究生院,北京市石景山区,100049
2. 中国科学院广州能源研究所可再生能源与天然气水合物重点实验室,广东省广州市,510640 |
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| 摘 要： | 节流降温装置是矿井救生舱CO2开式空调中关键的部件之一.采用毛细管进行节流降温,首先针对CO2节流过程进行热力学分析,然后建立两相区及气相区的节流数学模型并进行仿真计算.计算结果表明:制冷量越大,所需毛细管长度越长；在相同制冷量条件下,毛细管内径越大,所需毛细管长度越长；初始温度越高,可利用的焓差越小,且节流所需毛细管长度越长.最后针对制冷量分别为2 kW和3 kW的系统进行毛细管节流降温设计.
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| 关 键 词： | 矿井救生舱 CO2开式空调 毛细管 节流 |
Simulation on CO2 flow in capillary tube of air conditioner in mine refuge chamber |
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| Wu Wei
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Lin Yongman
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Gao Rixin
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Song Wenji
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Feng Ziping.Simulation on CO2 flow in capillary tube of air conditioner in mine refuge chamber[J].China Coal,2011,37(11). |
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| Authors: | Wu Wei Lin Yongman Gao Rixin Song Wenji Feng Ziping |
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| Affiliation: | Wu Wei1,2,Lin Yongman1,Gao Rixin1,Song Wenji1,Feng Ziping1(1.Key Laboratory of Renewable Energy and Gas Hydrate,Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou,Guangdong 510640,China,2.Graduate University of Chinese Academy of Sciences,Shijingshan,Beijing 100049,China) |
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| Abstract: | Throttling and cooling device is the key component of CO2 open-type air conditioner used in the mine refuge chamber.The thermodynamic analysis on CO2 throttling process using capillary tube was carried out.The mathematical models for throttling processes including two-phase region and only gas region were established.The simulation results showed that the cooling capacity increased with the increase of capillary length.And for the same cooling capacity,the greater the capillary diameter was,the longer lengt... |
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| Keywords: | mine refuge chamber CO2 open-type air conditioner capillary tube throttling |
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