| 天然气低温超音速流动过程的热力学模拟与分析 |
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| 引用本文： | 孙恒,李莹,李增材,郭保玲.天然气低温超音速流动过程的热力学模拟与分析[J].低温与超导,2012,40(3):14-16,68. |
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| 作者姓名： | 孙恒 李莹 李增材 郭保玲 |
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| 作者单位： | 1. 中国石油大学(北京)城市油气输配技术北京市重点实验室,北京,102249
2. 冀东油田设计公司,唐山,063004 |
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| 基金项目： | 国家自然科学基金青年科学基金项目“天然气在超音速分离管内深冷液化的机理及流动规律研究(51004111)”资助 |
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| 摘 要： | 基于SRK实际气体状态方程,对天然气在高压低温条件下经过超音速分离管的高速膨胀过程进行了热力学的计算和模拟。通过将实际气体的计算结果与理想气体计算结果进行比较,发现两者降温及截面积有很大区别,但截面积变化规律相似。而且不同入口条件下达到临界点所需压比一致,但液化点差别很大。在两相区截面增速变缓,但马赫数相差不大。
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| 关 键 词： | 天然气 超音速 分离管 液化 |
Thermo - dynamic simulation and analysis of supersonic flow of nature gas under cryogenic condition |
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| Sun Heng
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Li Ying
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Li Zengcai
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Guo Baoling.Thermo - dynamic simulation and analysis of supersonic flow of nature gas under cryogenic condition[J].Cryogenics and Superconductivity,2012,40(3):14-16,68. |
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| Authors: | Sun Heng Li Ying Li Zengcai Guo Baoling |
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| Institution: | 1(1.Beijing Key Laboratory of Urban Oil and Gas Distribution Technology,China University of Petroleum, Beijing 102249,China; 2.Jidong Oilfield Design Company,Tangshan 063004,China) |
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| Abstract: | Thermo-dynamic simulation of supersonic flow of nature gas was conducted based on the SRK real gas equation of state.The comparison indicates that a obvious difference of the temperature decreasing process and section area between the real and ideal gas existed.Furthermore,the liquefaction point was dependant on the inlet condition while the critical point kept invariable.The variation of Ma under different inlet condition was also very similar. |
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| Keywords: | Nature Gas Supersonic flow Seperator Liquefaction |
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