TY - GEN
T1 - Numerical analysis on natural circulation precooling of cryogenic liquid rocket engine
AU - Wang, J. Z.
AU - Chen, E. F.
AU - Song, B. F.
PY - 2012
Y1 - 2012
N2 - Natural circulation precooling of cryogenic liquid rocket engine is a spontaneous high velocity reflooding heat transfer process. In the present study, the flow regimes and heat transfer characteristics of this precooling process have been analyzed, and one set of heat transfer models, which couples the heat release equation of the pipeline wall and the flow and heat transfer equations of cryogenic liquid, has been established and validated to investigate the heat transfer characteristics of the unsteady precooling process. The results indicate that the circulation flow rate of the precooling process fluctuates due to the unstable heat released to the cryogenic liquid. Moreover, it is found that the optimal reflux location is at 4 ∼ 6 meters above the bottom header, and the precooling effects can be enhanced by decreasing the gas pillow pressure.
AB - Natural circulation precooling of cryogenic liquid rocket engine is a spontaneous high velocity reflooding heat transfer process. In the present study, the flow regimes and heat transfer characteristics of this precooling process have been analyzed, and one set of heat transfer models, which couples the heat release equation of the pipeline wall and the flow and heat transfer equations of cryogenic liquid, has been established and validated to investigate the heat transfer characteristics of the unsteady precooling process. The results indicate that the circulation flow rate of the precooling process fluctuates due to the unstable heat released to the cryogenic liquid. Moreover, it is found that the optimal reflux location is at 4 ∼ 6 meters above the bottom header, and the precooling effects can be enhanced by decreasing the gas pillow pressure.
KW - cryogenic liquid rocket engine
KW - film boiling
KW - high velocity reflooding
KW - natural circulation precooling
UR - http://www.scopus.com/inward/record.url?scp=84871672777&partnerID=8YFLogxK
U2 - 10.1109/ICIEA.2012.6360897
DO - 10.1109/ICIEA.2012.6360897
M3 - 会议稿件
AN - SCOPUS:84871672777
SN - 9781457721175
T3 - Proceedings of the 2012 7th IEEE Conference on Industrial Electronics and Applications, ICIEA 2012
SP - 1150
EP - 1155
BT - Proceedings of the 2012 7th IEEE Conference on Industrial Electronics and Applications, ICIEA 2012
T2 - 2012 7th IEEE Conference on Industrial Electronics and Applications, ICIEA 2012
Y2 - 18 July 2012 through 20 July 2012
ER -