Experimental investigation of aircraft spray cooling system with different heating surfaces and different additives

Wang, Yu; Zhou, Nianyong; Zhang, Yang; Jiang, Yanlong

doi:10.1016/j.applthermaleng.2016.04.124

Cited by 50 publications

(7 citation statements)

References 29 publications

(31 reference statements)

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“…The thin straight fin and porous tunnel surfaces showed the highest CHF among the surfaces under both degassed (142 W/cm 2 ) and gassy (175 W/cm 2 ) conditions, which were approximately 77% and 62% higher relative to the flat surface under degassed and gassy conditions, respectively. In their subsequent research [90], the geometry of the porous tunnel surface was optimized. Similar structures were also investigated by Wang et al [91].…”

Section: Millimeter-scale Structuresmentioning

confidence: 99%

Spray Cooling on Enhanced Surfaces: A Review of the Progress and Mechanisms

Wang

Jiang

2021

Journal of Electronic Packaging

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The rapid development of electronics, energy and propulsion systems has led us to the point where their performances are limited by cooling capacities. Heat fluxes of 10~100, even over 1,000 W/cm2 need to be dissipated with minimum coolant flow rate in next-generation power electronics. Spray cooling is a high heat flux, uniform and efficient cooling technique proven effective in various applications. However, its cooling capacity and efficiency need to be further improved to meet next-generation ultrahigh-power applications. Engineering of surface properties and structures can fundamentally affect the liquid-wall interactions, thus becoming the most promising way to enhance spray cooling. However, the unclear mechanisms of surface-enhanced spray cooling cause lack of guiding principles for surface design. Here, progress in spray cooling on surfaces with structures of different scales are reviewed and their performances evaluated and compared. Spray cooling can achieve critical heat flux (CHF) above 945 W/cm2 and heat transfer coefficient (HTC) up to 57 W/cm2K on structured surfaces for pressurized nozzle and CHF and HTC up to 1250 W/cm2 and 250 W/cm2K, respectively, on a smooth surface with the assistance of secondary gas flow. CHF enhancement of 110% was achieved on hybrid micro- and nanostructured surfaces. A clear map of enhancement mechanisms is proposed after analysis. Some future concerns are also proposed. This work helps the understanding and design of engineered surfaces in spray cooling and provides insights for interdisciplinary applications of heat transfer and advanced engineering materials.

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Section: Millimeter-scale Structuresmentioning

confidence: 99%

Spray Cooling on Enhanced Surfaces: A Review of the Progress and Mechanisms

Wang

Jiang

2021

Journal of Electronic Packaging

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“…According to the error transfer functions in our previous study [10], the maximum uncertainties of the heat flux and heat transfer coefficients were ± 4.9% and ± 5.7% respectively.…”

Section: Data Processingmentioning

confidence: 87%

“…In addition, the temperature of the targeted surface is more uniform, and the thermal stress is lower than other emerging liquid cooling methods [3,4]. Spray cooling has been gradually applied in various fields, such as data center chips [5,6], spacecraft equipment [7][8][9][10][11], and other microelectronics cooling fields. In the scenarios with a high heat flux density, such as diode lasers and photovoltaic systems, spray cooling also has strong application potential and broad application prospects [12,13].…”

mentioning

confidence: 99%

Investigation on spray cooling heat transfer performance with different nanoparticles and surfactants

et al. 2021

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“…Their results indicated that the spray cooling heat transfer was temporally and spatially non-uniform and there was a 2-mm radial subregion around the spray center with a high transient heat flux. The heat fluxes for spray cooling on four different surfaces, such as smooth surface, drilling surface, straight fin surface, and combined surface having both holes and fins had been researched by Wang et al [27]. Their experimental results showed that the drilling surface had the highest heat transfer coefficient and the combined surface had the highest cooling efficiency.…”

Section: International Journal Of Heat and Mass Transfermentioning

confidence: 99%