Analysis of ejection-cooling at the shut-off operating condition for a reheat fuel centrifugal pump

doi:10.16511/j.cnki.qhdxxb.2016.22.029

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Abstract The high fuel temperature rise at the shut-off operating condition in a reheat fuel centrifugal pump is addressed by cooling the impeller by fuel flowing through a by-pass from the pump inlet. The ejection-cooling is analyzed using the Reynolds average Navier-Strokes (RANS) method with the shear stress transport (SST) turbulence model and the Rayleigh-Plesset cavitation model. The results show that the ejection-cooling design can reduce the high fuel temperature rise at the shut-off condition. The power consumption and the friction heat are both reduced in the reheat fuel centrifugal pump with the ejection-cooling device because of the vapor core region in the impeller central zone which reduces the fuel temperature rise.

Keywords reheat fuel centrifugal pump shut-off operating condition ejection-cooling numerical analysis

ZTFLH:

V233.2

Issue Date: 15 June 2016

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	FAN Hongyu
	LU Qizhi
	GONG Jingsong
	PIAO Ying

Cite this article:

FAN Hongyu,LU Qizhi,GONG Jingsong, et al. Analysis of ejection-cooling at the shut-off operating condition for a reheat fuel centrifugal pump[J]. Journal of Tsinghua University(Science and Technology), 2016, 56(6): 661-665.

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http://jst.tsinghuajournals.com/EN/10.16511/j.cnki.qhdxxb.2016.22.029 OR http://jst.tsinghuajournals.com/EN/Y2016/V56/I6/661

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