Space Qualification Results of High Capacity Grooved Heat Pipes

Dubois, M.; Mullender, Bernard; Supper, W.

doi:10.4271/972453

Cited by 12 publications

(2 citation statements)

References 6 publications

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“…As shown by the experimental research [9,10], the temperature drop in the steam passage channel depends on the amount of heat-transfer fluid filling the pipe, and on the tilt angle of the axis of the heat pipe to the horizon. The three operation modes of the smoothwall heat pipe (Fig.2) differ in the amount of filling heat-transfer fluid.…”

Section: Methodsmentioning

confidence: 99%

Experimental research of heat recuperators in ventilation systems on the basis of heat pipes

2017

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Abstract. The paper presents the results of experimental studies of heat pipes and their thermo-technical characteristics (heat power, conductivity, heat transfer resistance, heat-transfer coefficient, temperature level and differential, etc.). The theoretical foundations and the experimental methods of the research of ammonia heat pipes made of aluminum section АS -КRА 7.5 -R1 (made of the alloy AD -31) are explained. The paper includes the analysis of the thermo-technical characteristics of heat pipes as promising highly efficient heat transfer devices, which may be used as the basic elements of heat exchangers -heat recuperators for exhaust ventilation air, capable of providing energy-saving technologies in ventilation systems for housing and public utilities and for various branches of industry. The thermo-technical characteristics of heat pipes (HP) as the basic elements of a decentralized supply-extract ventilation system (DSEVS) and energy-saving technologies are analyzed. As shown in the test report of the ammonia horizontal HP made of the section АS-КRА 7,5-R1-120, this pipe ensures safe operation under various loads.

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Section: Methodsmentioning

confidence: 99%

Experimental research of heat recuperators in ventilation systems on the basis of heat pipes

2017

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“…The pressure jump at the interface is a function of the radius of curvature of the liquid meniscus, surface tension and the wettability of the coolant liquid and substrate system [3][4][5] . Especially, as an optimum choice of high capacity grooved heat pipe in the frame provided by European Space Agency [6] , heat pipe with axial ''Ω"-shaped grooves combines a high capillary pressure with a low axial pressure drop in the liquid.…”

Section: Introductionmentioning

confidence: 99%

An Investigation of the Thermal Performance of a Novel Axial Grooved Heat Pipe

Yang

Wang

Jiang

et al. 2012

AMR

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Heat pipes are devices capable of very high heat transfer and have been widely used in many thermal management applications. An experimental investigation of thermal characteristics of heat pipe with axial ‘‘Ω”-shaped grooves was presented in this paper. The effects of angle of inclination and input power on thermal performance of heat pipe were investigated, the surface tension and gravity both impacted the fluid flow in heat pipe, and which one was dominating was analyzed. Experimental results indicate that the working temperature of heat pipe, the axial temperature differences and the maximum axial temperature differences increase when increasing the input heat flux. The total thermal resistances become smaller with the input power increasing, but become bigger with the angle of inclination increasing. And the trend of the thermal coefficient of heat pipe reverses that of the total thermal resistance. The influence of gravity on thermal performance is weaker than that of the surface tension.

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Heat pipe manufacture and testing

Reay¹

2014

Heat Pipes

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Space Qualification Results of High Capacity Grooved Heat Pipes

Cited by 12 publications

References 6 publications

Experimental research of heat recuperators in ventilation systems on the basis of heat pipes

Experimental research of heat recuperators in ventilation systems on the basis of heat pipes

An Investigation of the Thermal Performance of a Novel Axial Grooved Heat Pipe

Heat pipe manufacture and testing

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