Journal of Shanghai Jiao Tong University

Journal of Shanghai Jiaotong University >

2017 , Vol. 51 >Issue 8: 946 - 953

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2017.08.008

Simulation of a Thermodynamic Vent System Working at
 Room Temperature and Its Preliminary Pressurization Testing 

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  •  1. Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai 200240，
    China; 2. Shanghai Institute of Aerospace System Engineering, Shanghai 201108, China；
    3. State Key Laboratory of Technologies in Space Cryogenic Propellants, Beijing 100028, China

Online published: 2017-08-30

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Abstract

 A thermodynamic vent system with refrigerant R141b as working substance has been established for the purpose of revealing the primary principle and validating a modeling program. The experimental TVS was installed within a tank with a 450mm inner diameter cylinder and two  under development elliptical domes, and has a total volume of 0.11m3 approximately. Tests of pressure control under the action of spray bar alone and the joint action of spray bar, throttle valve and heat exchanger were conducted with representative input heat and fill level. The results showed that the experimental system could successfully control the ullage gauge pressure between 80 and 90kPa for 0.98 hour by operating the spray bar alone, while in the combined operation mode only 5.8% (3.35kg) of R141b was vented in 2 hours. The ability of this system for simulating the thermodynamic vent process of evaporative fluids was validated.

Key words：  thermodynamic vent; performance test; pressure control; mixing; storage

Cite this article

CHEN Zhongcan1, LI Peng2, SUN Peijie2, WANG Tianxiang3, LI Xiaoci1, HUANG Yonghua1 . Simulation of a Thermodynamic Vent System Working at
 Room Temperature and Its Preliminary Pressurization Testing [J]. Journal of Shanghai Jiaotong University, 2017 , 51(8) : 946 -953 . DOI: 10.16183/j.cnki.jsjtu.2017.08.008

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