Boiling Heat Transfer to Liquid Hydrogen from Flat Surfaces

Class, Christina; DeHaan, J. R.; Piccone, M.; Cost, R. B.

doi:10.1007/978-1-4757-0537-9_30

Cited by 22 publications

(20 citation statements)

References 2 publications

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“…Class et al [44], Githinji and Sabersky [45], Marcus and Dropkin [46], Chen [47], Nishikawa et al [48], and Kumar et al [49] examined the influence of wall orientation on pool boiling. These studies demonstrated both drastic variations of CHF value and vast differences in CHF trigger mechanism with orientation, which implies that different CHF models must be pursued for the different orientations.…”

Section: Influence Of Heated Wall Orientation On Pool Boilingmentioning

confidence: 99%

Review of flow boiling and critical heat flux in microgravity

Konishi

Mudawar

2015

International Journal of Heat and Mass Transfer

141

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Section: Influence Of Heated Wall Orientation On Pool Boilingmentioning

confidence: 99%

Review of flow boiling and critical heat flux in microgravity

Konishi

Mudawar

2015

International Journal of Heat and Mass Transfer

141

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“…In the report by Nishio and Chandratilleke [8] on the measurement of liquid helium, the heat transfer coefficient increased if the angle of inclination increased (φ = 0° → 175°) whereas Lyon [9] only found a slight difference between φ = 90° and 180° although the heat transfer coefficient increased at φ = 90°. In the measurement by Class and colleagues [3] for liquid hydrogen, the heat transfer coefficient remained almost unchanged even if the angle of inclination of the heat transfer surface increased (φ = 0° → 90°). Fig.…”

Section: Heat Transfer Characteristics Of Liquid Hydrogen and Slush Hmentioning

confidence: 86%

“…The heat transfer characteristics of liquid hydrogen have been examined by Coeling and others [1][2][3], and the experimental investigation of slush hydrogen's transfer characteristics is limited to the one report of Sindt [4]. Required data, including the heat transfer characteristics of the triple-point (TP) liquid hydrogen, still need to be defined.…”

Section: Introductionmentioning

confidence: 98%

Study of nucleate boiling heat transfer to slush hydrogen and slush nitrogen

Ohira

2002

Heat Trans. Asian Res.

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Slush hydrogen is a mixture of liquid hydrogen and solid hydrogen particles, and is being considered as a spaceplane fuel or as a means of transport for hydrogen used as a source of clean energy. This paper describes nucleate boiling heat transfer characteristics of slush hydrogen and slush nitrogen. For the visual observation of heat transfer states, a heat transfer unit was placed in a glass Dewar designed to minimize the heat loss from an atmospheric environment. The heat transfer unit used was a circular flat plate 0.025 m in diameter made of electrolytic tough pitch copper. During testing, three different orientations of the heat transfer surface were used: horizontal facing up, vertical, and horizontal facing down. Heat transfer data for the normal boiling point (NBP) of liquid hydrogen, the triple point (TP) of liquid hydrogen, the NBP of liquid nitrogen, and the TP of liquid nitrogen were obtained up to the critical heat flux (burnout). These data for slush hydrogen and nitrogen, including the results of observation of the heat transfer surface were compared. This clarified the nucleate boiling heat transfer characteristics of slush hydrogen and slush nitrogen, which have rarely been investigated.

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“…Several workers [1][2][3] have mainly investigated the pool boiling heat transfer of saturated liquid hydrogen at atmospheric pressure. However, there has been a lack of systematic experimental data of heat transfer characteristics in a pool of liquid hydrogen for wide ranges of pressure and supercritical hydrogen.…”

Section: Introductionmentioning

confidence: 99%

Heat Transfer Characteristics of a Horizontal Wire in Pools of Liquid and Supercritical Hydrogen

Tatsumoto

Shirai

Shiotsu

et al. 2014

J Supercond Nov Magn

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Abstract.Heat transfer from a horizontal wire immersed in liquid and supercritical hydrogen was measured with a quasi-steady increase of a heat generation rate for wide range of bath temperatures and pressures. The nucleate boiling heat transfer coefficient is higher for higher pressure. The CHF is highest in the vicinity of 0.4 MPa and is expressed by Kutateladze's equation. The CHFs become higher for higher subcooling. The heat transfer under supercritical pressure is the same as natural convection heat transfer in liquid hydrogen, but it detoriorates for the heated surface temperautre higher than pseudo-critical temperature. The heat transfer correlation was derived based on the experimental data.

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Boiling Heat Transfer to Liquid Hydrogen from Flat Surfaces

Cited by 22 publications

References 2 publications

Review of flow boiling and critical heat flux in microgravity

Review of flow boiling and critical heat flux in microgravity

Study of nucleate boiling heat transfer to slush hydrogen and slush nitrogen

Heat Transfer Characteristics of a Horizontal Wire in Pools of Liquid and Supercritical Hydrogen

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