| 基于夹点技术的修正布雷顿循环优化分析 |
| |
| 引用本文： | 李佳敏,康慧芳,雷刚,王天祥. 基于夹点技术的修正布雷顿循环优化分析[J]. 低温工程, 2017, 0(4) |
| |
| 作者姓名： | 李佳敏 康慧芳 雷刚 王天祥 |
| |
| 作者单位： | 1. 北京理工大学机械与车辆学院 北京 100081;2. 航天低温推进剂技术国家重点实验室 北京100028 |
| |
| 基金项目： | 航天低温推进剂技术国家重点实验室开放基金资助项目，中国科学院低温工程学重点实验室开放课题资助项目 |
| |
| 摘 要： | 为提高修正布雷顿循环氦液化系统的液化率及效率,基于夹点技术的优化方法对该系统进行优化分析。通过建立夹点技术的T-H组合曲线图分析系统的夹点所在、利用Fortran模拟计算来定性、定量地分析系统的主要性能指标,如系统压缩机出口压力、膨胀机中间压力等与系统的液化率及效率之间的关系。发现当膨胀机中间压力为600—800 MPa时,系统的液化率和效率最高。
|
| 关 键 词： | 夹点技术 氦 液化 (火用)分析 |
Optimization analysis of modified Brayton helium liquefaction cycle using pinch technology |
| |
| Li Jiamin,Kang Huifang,Lei Gang,Wang Tianxiang. Optimization analysis of modified Brayton helium liquefaction cycle using pinch technology[J]. Cryogenics, 2017, 0(4) |
| |
| Authors: | Li Jiamin Kang Huifang Lei Gang Wang Tianxiang |
| |
| Abstract: | An optimal design scheme was done based on the pinch technology for the modified Brayton helium liquefaction cycle to improve the system's liquefaction rate and energy efficiency.The pinch point of the cycle were found by the temperature-enthalpy diagram,and then a simulation was perform through Fortran to analysis the main performance indexes of the system qualitatively and quantitatively such as the liquefaction rate and exergy efficiency dependence on compressor outlet pressure,intermediate pressure of expanders,etc.It is found that the liquefaction rate and exergy efficiency of the system are the highest when the intermediate pressure of the expanders is 600-800 MPa. |
| |
| Keywords: | pinch technology helilum liquefaction exergy analysis |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
