Development of the Compact Flash Evaporator System for Exploration

Golliher, Eric; Romanin, Janice; Kacher, Hank; Fisher, Caleb; Seigneur, Al; Nowlin, Brent; Konno, Kevin E.; Wang, Xiao-yen

doi:10.4271/2007-01-3204

Cited by 14 publications

(2 citation statements)

References 4 publications

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“…Due to the advantages of compact structure, strong heat removing capability and low flow rate of working fluid, compact flash evaporator system has become an alternative thermal control system in NASA orion crew exploration vehicle spacecraft [1,2]. However, little published literature on the VSEFC was found.…”

Section: Introductionmentioning

confidence: 98%

Experimental investigation on the heat transfer characteristics of vacuum spray flash evaporation cooling

Cheng

Peng

Chen

et al. 2016

International Journal of Heat and Mass Transfer

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a b s t r a c tVacuum spray flash evaporation cooling (VSFEC) is considered as an alternative effective method for dissipating high heat flux in the field of space thermal control. In this paper, a VSFEC experiment system has been developed to investigate the influence of spray flow rate and spray height on the heat transfer characteristics of VSFEC. The experiment results show that the heat flux can be removed efficiently from the heat source in VSFEC system with a very small spray flow rate, which is only one third of that of conventional spray cooling under the same heat flux. And an optimal flow rate exists in VSFEC, at which the heat transfer approaches to a highest value, it is different from conventional spray cooling in which the heat flux increases with the increasing of spray flow rate all the time, in VSFEC, the heat flux firstly increases and then decreases with increasing of flow rate. Since VSFEC system is an open-loop heat dissipation system, it has very important significance that based on the optimal flow rate to reduce working medium consumption, especially for space thermal control system which has a strict limit on weight. In addition, spray height has an important effect on the heat transfer characteristics of VSFEC and an optimal spray height is also obtained at which the maximum value of heat flux can be achieved.

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Section: Introductionmentioning

confidence: 98%

Experimental investigation on the heat transfer characteristics of vacuum spray flash evaporation cooling

Cheng

Peng

Chen

et al. 2016

International Journal of Heat and Mass Transfer

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“…In the outer space, the natural vacuum environment provides a good low-pressure environment for the spray flash evaporation. NASA takes the vacuum flash evaporation cooling as the prior development direction of thermal control in air vehicles [44].…”

Section: Study On Applications Of Flashmentioning

confidence: 99%

Research Progresses of Flash Evaporation in Aerospace Applications

Ma¹,

Zhai

Zhang

et al. 2018

International Journal of Aerospace Engineering

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Liquid is overheated and evaporated quickly when it enters into the environment with lower saturation pressure than that corresponding to its initial temperature. This phenomenon is known as the flash evaporation. A natural low-pressure environment and flash evaporation have unique characteristics and superiority in high altitude and outer space. Therefore, flash evaporation is widely used in aerospace. In this paper, spray flash evaporation and jet flash evaporation which are two different forms were introduced. Later, key attentions were paid to applications of flash evaporation in aerospace. For example, the flash evaporation has been used in the thermal control system of an aircraft and the propelling system of a microsatellite and oil supply system of a rocket motor. Finally, the latest progresses in the calculation model and numerical simulation of flash evaporation were elaborated.

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