Numerical Simulation of Phase Change Cold Storage Heat Exchanger for Liquid Hydrogen Cold Chain Logistics Vehicle
A coaxial spiral tube heat exchanger used for phase change cold storage of liquid hydrogen cold chain logistics vehicles is proposed. The three-dimensional heat flow coupling numerical analysis model of the heat exchanger is established. The influence of parameters such as hydrogen mass flow rate, h...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Journal of Refrigeration Magazines Agency Co., Ltd.
2025-01-01
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| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails?columnId=84198876&Fpath=home&index=0 |
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| Summary: | A coaxial spiral tube heat exchanger used for phase change cold storage of liquid hydrogen cold chain logistics vehicles is proposed. The three-dimensional heat flow coupling numerical analysis model of the heat exchanger is established. The influence of parameters such as hydrogen mass flow rate, hydrogen inlet absolute pressure, mass flow rate of secondary refrigerant and inlet temperature of secondary refrigerant on the outlet temperature of secondary refrigerant and the solidification quality of phase change cold storage in heat exchanger was obtained. The calculation results show that the outlet temperature of the secondary refrigerant and the cold storage solidification quality are closely related to the hydrogen mass flow rate, the absolute pressure of the hydrogen inlet, the mass flow rate of the secondary refrigerant and the inlet temperature of the secondary refrigerant. With the continuous transient heat transfer process between the hydrogen and the secondary refrigerant in the heat exchanger, the outlet temperature of the secondary refrigerant and the cold storage solidification quality of the secondary refrigerant will change rapidly and gradually become stable. In the heat transfer process of the coaxial spiral tube heat exchanger studied in this paper, there is no observed blockage of the shell channel of the heat exchanger due to phase change solidification under various calculation conditions. The research results of this project can provide theoretical analysis model and reference data for the design and engineering practice of phase change cold storage heat exchangers for liquid hydrogen cold chain logistics vehicle. |
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| ISSN: | 0253-4339 |