Spray cooling and flash evaporation cooling: The current development and application

Cheng, Wen‐Long; Zhang, Weiwei; Chen, Hua; Hu, Lei

doi:10.1016/j.rser.2015.11.014

Cited by 297 publications

(79 citation statements)

References 116 publications

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“…Spray cooling is considered as one of the most effective methods of high-flux-waste-heat removal and has long enjoyed a reputation of unavoidable cooling method [7]. It has several remarkable advantages: not only the high heat flux dissipation capacity but also the low-temperature difference with low coolant mass flux in the given condition and its latent heat of vaporization absorbs great amounts of heat with a minimal temperature variation [8,9]. It was reported that its Critical Heat Flux (CHF) could be up to 1200 W/cm 2 when using water as the coolant [6].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on Heat Transfer Mechanism of Air-Blast-Spray-Cooling System with a Two-Phase Ejector Loop for Aeronautical Application

Cai

et al. 2019

Energies

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This paper presents an air-oriented spray cooling system (SCS) integrated with a two-phase ejector for the thermal management system. Considering its aeronautical application, the spray nozzle in the SCS is an air-blast one. Heat transfer performance (HTP) of air-water spray cooling was studied experimentally on the basis of the ground-based test. Factors including pressure difference between water-inlet-pressure (WIP) and spray cavity one (PDWIC) and the spray volumetric flow rate (SVFR) were investigated and discussed. Under a constant operating condition, the cooling capacity can be promoted by the growth factors of the PDWIC and SVFR with the values from 51.90 kPa to 235.35 kPa and 3.91 L ⋅ h − 1 to 14.53 L ⋅ h − 1 , respectively. Under the same heating power, HTP is proportional to the two dimensionless parameters Reynolds number and Weber number due to the growth of droplet-impacting velocity and droplet size as the increasing of PDWIC or SVFR. Additionally, compared with the factor of the droplet size, the HTP is more sensitive to the variation in the droplet-impacting velocity. Based on the experimental data, an empirical experimental correlation for the prediction of the dimensionless parameter Nusselt number in the non-boiling region with the relative error of only ± 10 % was obtained based on the least square method.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigation on Heat Transfer Mechanism of Air-Blast-Spray-Cooling System with a Two-Phase Ejector Loop for Aeronautical Application

Cai

et al. 2019

Energies

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“…Making the conventional heat dissipation methods such as forced convection, pool boiling, jet impingement, are difficult to meet desired thermal control required. Spray cooling is known for having numerous advantages over conventional heat dissipation such as higher heat dissipation capacity, less flow rate demand, no temperature overshoot [1]. Spray cooling are also used in metal quenching process to increase the quality [2].…”

Section: Introductionmentioning

confidence: 99%

Study on the effect of Weber Number to heat transfer of multiple droplets on hot stainless steel surface

et al. 2018

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Abstract. Multiple droplets are drops of water that continuously dropped onto a surface. Spray cooling is an application of the use of droplet on a cooling system. Spray cooling is usually used in a cooling system of electronic devices, and material quenching. In this study, correlations between Weber number and surface temperature decrease rate during multiple droplets impingement are investigated and analyzed. Visualization process is used to help determine the evaporation time of droplets impingement by using high speed camera. Induction stove is used to maintain a stainless steel surface temperature at 120°C, 140°C, and 160°C. The Weber number was varied at 15, and 52.5 to simulate low and medium Weber number. The result of this study shows that increase in Weber number does not increase the temperature decrease rate noticeably. Whereas the Weber number decrease the time required for surface temperature to reach its lowest surface temperature. It was also found that for low and medium Weber number, Weber number affect the evaporation time of multiple droplets after impingement.

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“…Compared with other heat transfer technology, spray cooling has the advantages of strong heat dissipation and low coolant mass flow rate [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Experiment Study of the Influence of Spray Height and Pressure on the Spray Cooling Performance

Chen¹,

Liu²,

Gao³

et al. 2018

dteees

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Abstract. Spray cooling is widely used in today's high power density and heat electronic devices because of its high heat transfer capacity and uniform cooling temperature. In this paper, the spray cooling performance is studied experimentally using a solid-cone nozzle and deionized water as a cooling medium, the optimum spray height of is 10mm for heating surface diameter as 16mm. The maximum heat flux in the experiments is up to 350W/cm 2 on the heating surface (diameter is 16mm). The maximum heat transfer coefficient is up to 6.2W/(cm 2 ·K). The experimental results show that the spray height is the main factor affecting the spray performance.

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Spray cooling and flash evaporation cooling: The current development and application

Cited by 297 publications

References 116 publications

Experimental Investigation on Heat Transfer Mechanism of Air-Blast-Spray-Cooling System with a Two-Phase Ejector Loop for Aeronautical Application

Experimental Investigation on Heat Transfer Mechanism of Air-Blast-Spray-Cooling System with a Two-Phase Ejector Loop for Aeronautical Application

Study on the effect of Weber Number to heat transfer of multiple droplets on hot stainless steel surface

Experiment Study of the Influence of Spray Height and Pressure on the Spray Cooling Performance

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