Heat transfer performance and optimization of a close-loop R410A flash evaporation spray cooling

Lin, Yan-Ke; Zhou, Zhifu; Fang, Yu; Tang, Hong-Lin; Chen, Bin

doi:10.1016/j.applthermaleng.2019.113966

Cited by 45 publications

(8 citation statements)

References 40 publications

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“…Moreover, water cannot directly contact electronic devices because of its poor electrical insulation properties. A specialized cold plate is required for heat removal, which increases the complexity of the spray-cooling system, reduces the heat-transfer capacity, and limits its application in the thermal management of high-power electronics [65].…”

Section: Properties Of the Working Fluid On Heat-transfer Performance...mentioning

confidence: 99%

Spray Cooling as a High-Efficient Thermal Management Solution: A Review

et al. 2022

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As one of the most promising thermal management solutions, spray cooling has the advantages of high heat-transfer coefficient and maintaining a low temperature of the cooling surface. By summarizing the influential factors and practical applications of spray cooling, the current challenges and bottlenecks were indicated so as to prompt its potential applications in the future. Firstly, this paper reviewed the heat-transfer mechanism of spray cooling and found that spray cooling is more advantageous for heat dissipation in high-power electronic devices by comparing it with other cooling techniques. Secondly, the latest experimental studies on spray cooling were reviewed in detail, especially the effects of spray parameters, types of working fluid, surface modification, and environmental parameters on the performance of cooling system. Afterwards, the configuration and design of the spray cooling system, as well as its applications in the actual industry (data centers, hybrid electric vehicles, and so on) were enumerated and summarized. Finally, the scientific challenges and technical bottlenecks encountered in the theoretical research and industrial application of spray cooling technology were discussed, and the direction of future efforts were reasonably speculated.

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Section: Properties Of the Working Fluid On Heat-transfer Performance...mentioning

confidence: 99%

Spray Cooling as a High-Efficient Thermal Management Solution: A Review

et al. 2022

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“…The phenomenon of droplet evaporation is widespread in nature. Sessile droplet evaporation on rigid surfaces has been extensively investigated because it is commonly used in industrial applications, such as spray cooling, [1][2][3] inkjet printing, 4,5 DNA-chip manufacturing, particle deposition applications, etc. Since the pioneering work of Picknett and Bexon in the 1970s, 6 it has generally been considered that sessile droplet evaporation can be categorized into three modes: the constant contact radius (CCR) mode, the constant contact angle (CCA) mode, and the mixed mode with simultaneous change of contact diameter and contact angle.…”

Section: Introductionmentioning

confidence: 99%

Sessile droplet evaporation on the surface of a liquid metal

et al. 2022

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“…the difference between the sprayed surface temperature and the coolant saturation temperature as shown in Figure1a. A quench curve [19] is the cooled-surface temperature versus time, i.e. a plot of the transient temperature associated with these regimes during the spray cooling as shown Figure1b.…”

Section: Introductionmentioning

confidence: 99%

Heat flux correlation models for spray evaporative cooling of vibrating surfaces in the nucleate boiling region

Sarmadian

Dunne

Long

et al. 2020

International Journal of Heat and Mass Transfer

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New empirical correlation models are constructed to characterise heat transfer associated with spray evaporative cooling of vibrating surfaces -a process involving complex two-phase physics well beyond current numerical simulation capabilities. The proposed correlation models, which account for dynamic, rather than just static surface conditions as in existing models, are constructed using dimensional analysis involving the Generalized Buckingham Π-Theorem. Experimentally-measured spray evaporative cooling data is used to fit the model using the Vibrational Reynolds number and a dimensionless acceleration number which better correlate the influence of surface frequency and amplitude in the nucleate boiling regime. Different coolant flow-rates through a full-cone spray nozzle are used to cool a flat circular test-piece acting as a horizontal surface. The test-piece surface is excited by a shaker through a range of low and high vibration frequencies and amplitudes. The results show that surface dynamic effects certainly influence nucleate boiling, but they also show that surface vibration does not have the same effect for all excess temperatures -dynamic effects can either increase or decrease heat transfer depending on the heat transfer mechanism. These new models are important for thermal management in several areas, particularly involving batteries, power electronics, and electrical machines in automotive and aerospace applications.

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Heat transfer performance and optimization of a close-loop R410A flash evaporation spray cooling

Cited by 45 publications

References 40 publications

Spray Cooling as a High-Efficient Thermal Management Solution: A Review

Spray Cooling as a High-Efficient Thermal Management Solution: A Review

Sessile droplet evaporation on the surface of a liquid metal

Heat flux correlation models for spray evaporative cooling of vibrating surfaces in the nucleate boiling region

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