Pressure-drop characteristics of CO2 boiling flow in the regenerative-cooling channel of an Mg/CO2 powder rocket engine for Mars missions

Wei, Ronggang; Hu, Chunbo; Yang, Jiangang; Wu, Fuzhen; Hu, Jiaming; Li, Fengchao; Li, Chao

doi:10.1016/j.actaastro.2022.05.031

Cited by 7 publications

(1 citation statement)

References 30 publications

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“…Currently, the heat-dissipation capacity of boiling cooling achieves as high as 202 W/cm 2 , which is about six times higher than that of conventional air-cooling methods [6]. Therefore, boiling-cooling technology is widely used in various fields, such as nuclear power plants [7], air-conditioning units [8], heat pipes [9], rocket engines [10], battery cooling [11], and electronics cooling [12,13].…”

Section: Introductionmentioning

confidence: 99%

A Review of Pool-Boiling Processes Based on Bubble-Dynamics Parameters

Xiao,

Zhuang,

et al. 2023

Applied Sciences

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Immersion cooling is widely used for thermal management of servers. The two-phase immersion cooling, which transfers heat by boiling, possesses efficient temperature control ability under intensive heat generation. In the process of temperature control through boiling, the generation and transportation of bubbles play a crucial role in calculating the heat-transfer capacity. Therefore, it holds immense significance to obtain a profound understanding of the mechanisms underlying bubble formation and detachment. Currently, numerous mechanistic explanations and empirical correlations have been proposed to elucidate the various parameters of bubbles during the boiling process. These findings were considered to be valuable references when selecting appropriate boiling media and designing efficient heating surfaces. To comprehensively present the progress of bubble formation and heat transfer in the boiling system, the forces exerted on the bubbles are highlighted in this article. A meticulous review of bubble-force analysis and correlation formulae pertaining to various relevant parameters (e.g., nucleation sites density, bubble growth rate, bubble growth period, and detachment frequency) was conducted. This review article was also expected to provide a novel foundation for further exploration of enhanced boiling heat transfer.

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