Experimental Study on Heat Transfer Characteristics of Spray Cooling of Liquid Nitrogen

she, yangzi; Jiang, Yanlong; Zhao, Ke; Yuan, Jie; Zhou, Nianyong; Zhao, Yaozhong

doi:10.1615/heattransres.2021037226

Cited by 10 publications

(3 citation statements)

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“…Furthermore, surface temperature fluctuations are more pronounced at high heat flux density. She et al [23,24] studied the relationship between the superheat, heat flux, and heat transfer coefficient of liquid nitrogen spray. An increase in the heat flux caused the increase rate of the surface temperature to gradually increase, and the increase rate was found to be related to the heat exchange area.…”

Section: Introductionmentioning

confidence: 99%

Liquid-Nitrogen Spray-Cooling Combined Effect of the Spray Height and Heat-Sink-Surface Diameter

she

Jiang

2022

Applied Sciences

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An experimental bench was constructed for liquid nitrogen spray cooling in an open loop system, and the combined effect of the spray height, heat sink surface diameter, and spray mass flow on the heat transfer characteristics of liquid nitrogen spray cooling was studied by comparing 50 sets of experimental data. In general, the heat transfer performance decreased with an increase in the spray height and heat sink surface diameter, with the latter’s influence being more dominant. In the experiment, when the heat sink surface diameter increased to 24 mm, the influence of the spray height on the heat transfer performance decreased. The maximum critical heat flux and maximum heat transfer coefficient were 191.90 W·cm−2 and 16.67 W·cm−2·K−1.

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Section: Introductionmentioning

confidence: 99%

Liquid-Nitrogen Spray-Cooling Combined Effect of the Spray Height and Heat-Sink-Surface Diameter

she

Jiang

2022

Applied Sciences

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“…(2) Remaining projectile characteristics. Deletombe [29] proposed that the projectile will undergo overturning, deformation or even fracture when interacting with the water medium; Shen [30][31][32] analyzed the rule of the mushrooming deformation of the projectile and its influence on penetration resistance by tests and numerical calculations of fragments penetrating the liquid cabin, and proposed the formulas for calculating penetration resistance and velocity considering the influence of projectile deformation.…”

Section: Introductionmentioning

confidence: 99%

Study on the Penetration Characteristics of Water Entry Rod Projectile into Liquid Cabin at an Attack Angle

Wang

Hou

et al. 2022

Applied Sciences

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The penetration of a projectile into a warship broadside liquid cabin is usually a non-ideal penetration process. To explore the protective effects of the broadside liquid cabin of a large warship against the non-ideal penetration of rod projectiles and to provide reference for the design of new liquid cabin structures, ballistic impact tests of rod projectiles penetrating the liquid cabin at different attack angles were carried out. Combined with numerical calculation, the impact of the attack angle on the water entry and penetration characteristics of the projectile into the liquid cabin as well as their failure modes were studied. The overturning and yawing of the projectile in water were analyzed. The pressure load characteristics in the liquid cabin and the deformation/failure modes of the projectile and the liquid cabin were identified. The results showed that: multiple overturning and yawing occur in the projectile with an initial attack angle during penetration into liquid; the yaw direction is mainly affected by the initial attack angle and projectile attitude; the projectile mainly undergoes four basic failure modes, namely, asymmetric mushrooming at the projectile nose, side erosion, overall plastic bending and fracture; the actual failure of the projectile is a combination of the basic failure modes; the overall plastic bending and fracture are mainly related to the length to diameter ratio, initial attack angle and initial projectile velocity; the front plate of the liquid cabin may undergo tearing along the central plastic hinge line of the plate: at a small attack angle, the tear is “I” shaped, and at a large attack angle, it is “X”-shaped.

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“…studied the role of the chevron-nozzle on the jet impingement onto a specifically confined conical-concave target and considered both the convective heat transfer and the discharger coefficient of the nozzle in the jet impingement configuration Pal et al (2021). investigated the transport enhancement of impinging annular jets and discussed the possibility of HTE on an impinging surface under annular nozzle using angled exit jet She et al (2021). studied the spray zone characteristics of two types of full cone nozzles by setting up a liquid-nitrogen-spray-cooling experimental platform and analyzed the relationships between the heat flux and the superheat, the heat transfer coefficient and the superheat, and the heat flux and the heat transfer coefficient by controlling the liquid nitrogen flow, orifice of nozzle and heat sink area.The magnetohydrodynamics (MHD) technique is widely used in various industrial fields such as manufacturing of semi-conducting wafers, the blanket flows of fusion reactors, and the continuous casting process.…”

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confidence: 99%

Thermal Energy, Process, and Transport Intensification - A Brief Review of Literature in 2021 and Prospects

2022

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This review provides a brief literature survey recorded by the Web of Science (WoS) in 2021 on the studies of heat transfer enhancement (HTE), thermal energy, process and transport intensification technologies. A topic search containing "heat transfer" or "heat transport" or "thermal transport" in the WoS resulted in over 31,360 papers published in 2021 and more than 30% were relevant to HTE, thermal energy, process and transport intensification, which indicates the importance and rapid development of these technologies and their applications. The chosen

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Experimental Study on Heat Transfer Characteristics of Spray Cooling of Liquid Nitrogen

Cited by 10 publications

References 0 publications

Liquid-Nitrogen Spray-Cooling Combined Effect of the Spray Height and Heat-Sink-Surface Diameter

Liquid-Nitrogen Spray-Cooling Combined Effect of the Spray Height and Heat-Sink-Surface Diameter

Study on the Penetration Characteristics of Water Entry Rod Projectile into Liquid Cabin at an Attack Angle

Thermal Energy, Process, and Transport Intensification - A Brief Review of Literature in 2021 and Prospects

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