| LNG气瓶传热计算方法及实验验证 |
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| 引用本文： | 杨刚,黄思,夏莉,易天坤,郑任重.LNG气瓶传热计算方法及实验验证[J].江西师范大学学报(自然科学版),2020,44(4):341-344. |
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| 作者姓名： | 杨刚 黄思 夏莉 易天坤 郑任重 |
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| 作者单位： | 1.广东省特种设备检测研究院,广东 佛山 528000; 2.华南理工大学机械与汽车工程学院,广东 广州 510641 |
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| 基金项目： | 国家自然科学基金;广东省质监局科技资助项目 |
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| 摘 要： | 以液氮为工质,选取150 L、330 L和450 L等3种规格LNG气瓶进行传热计算.采用饱和均质模型,根据在饱和状态下的热力学关系,拟合出液氮物性参数与温度的关系并编制程序,计算得到了气瓶内介质压力随时间的变化规律.通过与有关文献的液氮升压实验数据对比,验证了该计算模型的有效性.
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| 关 键 词： | LNG气瓶 液氮 饱和均质模型 升压规律 |
The Calculation Method and Experimental Verification of LNG Cylinder Heat Transfer |
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| YANG Gang,HUANG Si,XIA Li,YI Tiankun,ZHENG Renzhong.The Calculation Method and Experimental Verification of LNG Cylinder Heat Transfer[J].Journal of Jiangxi Normal University (Natural Sciences Edition),2020,44(4):341-344. |
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| Authors: | YANG Gang HUANG Si XIA Li YI Tiankun ZHENG Renzhong |
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| Institution: | 1.Guangdong Institute of Special Equipment Inspection and Research,Foshan Guangdong 528000,China; 2.School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou Guangdong 510641,China |
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| Abstract: | Liquid nitrogen is used as the working medium in this study,and three specifications of LNG cylinders(150 L,330 L and 450 L)are selected for heat transfer calculation.According to the thermodynamic relationship in the saturated state,a saturated homogeneous model is adopted to fit the relations between the temperature and the physical parameters of liquid nitrogen and make program.A code is made to get the change law of the medium pressure in the cylinder with time.The validity of the calculation method is verified by comparison with experimental data of liquid nitrogen pressure boost in related literatures. |
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| Keywords: | LNG cylinder liquid nitrogen saturated homogeneous model pressure increasing rules |
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