化工学报2016，Vol.67Issue(10)：4047-4054,8.DOI:10.11949/j.issn.0438-1157.20160613
热负荷对R141b热力学排气系统自增压特性及排气损失的影响
Effect on self-pressurization characteristics and mass loss of thermodynamic vent system for refrigerant R141b by heat load
摘要
Abstract
In order to study the fundamental problems involved in the storage of cryogens in space, the experimental investigation of tank pressure control was carried out on a simulator of thermodynamic vent system (TVS), which works at room temperature with refrigerant R141b as working fluid. The pressure control characteristics were obtained at heat load of 120, 160 and 200 W. The test results showed that the self-pressurization rate were 6.43, 12.92 and 18.05 kPa·h−1 respectively at those three different heat load. Mass loss as a result of tank pressure control was compared between TVS method and direct gas vent method. Taking the heat load of 120 W as an example, the mass loss can be reduced by 79.3%. Assuming the mixture vented directly at zero-gravity containing 40% liquid, the TVS method can reduce the mass loss even by up to 84.7%. It was proved that the TVS method cannot only control the tank pressure but also significantly reduce the loss of the storage fluid.关键词
R141b/热力学/压力控制/传热/相变Key words
R141b/thermodynamics/pressure control/heat transfer/phase change分类
航空航天引用本文复制引用
陈忠灿,黄永华,汪彬,李鹏,孙培杰,王天祥,崔佳勋..热负荷对R141b热力学排气系统自增压特性及排气损失的影响[J].化工学报,2016,67(10):4047-4054,8.基金项目
航天低温推进剂技术国家重点实验室基金项目（SKLTSCP1206-W）。@@@@Foundation item：supported by the Open Research Fund of the State Key Laboratory of Technologies in Space Cryogenic Propellants (SKLTSCP1206-W) （SKLTSCP1206-W）
