International Journal of Heat and Mass Transfer
2021
Thermal prediction of transient two-phase flow in cryogenic transportation based on drift-flux model
Jiaojiao Wanga, Yanzhong Liab, Lei Wanga, Yang Zhaoc, Mamoru Ishiic
aInstitute of Refrigerating & Cryogenic Engineering, Xi’an Jiaotong University, Xi’an 710049, China
bState Key Laboratory of Technologies in Space Cryogenic Propellants, Beijing 100028, China
cSchool of Nuclear Engineering, Purdue University, 400 Central Drive, West Lafayette, IN 47907, USA
摘要：
Accurate prediction as well as effective thermal management of transient cryogenic transportation is of great importance to the safe and high-efficiency utilization of cryogenic fluids. To predict the unstable cryogenic transportation process, a one-dimensional model coupling two-phase flow with transient heat conduction of solid tube is developed in this study. The transient two-phase flow is described by a drift-flux model, and a finite volume method (FVM) with staggered grid mesh is adopted for numerical calculation. Verified by a lot of experimental data, the proposed model shows its applicability in a wide range of conditions. Then, thermal performance and pressure surge phenomenon are investigated in detail. The intermittent chill-down strategy is recommended to take full use of the sensible energy of fluid from the perspective of energy saving. Besides, the pressure surge is verified as a special physical phenomenon in cryogenic fluids transportation process, which brings higher challenges to the storage, handling and transport of cryogenic fuels.