Machine-assisted quantification of droplet boiling upon multiple solid materials

Wang, Ji-Xiang; Cui, Binbin; Salmean, Christopher; Chen, Xia; Yan, Xiao; Mao, Yufeng; Yao, Shuhuai

doi:10.1016/j.nanoen.2024.109560

Cited by 3 publications

References 74 publications

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Nano‐Enhanced Graphite/Phase Change Material/Graphene Composite for Sustainable and Efficient Passive Thermal Management

Wang,

Mao,

Miljkovic

2024

Advanced Science

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Passive battery thermal management systems (BTMSs) are critical for mitigation of battery thermal runaway (TR). Phase change materials (PCMs) have shown promise for mitigating transient thermal challenges. Fluid leakage and low effective thermal conductivity limit PCM adoption. Furthermore, the thermal capacitance of PCMs diminishes as their latent load is exhausted, creating an unsustainable cooling effect that is transitory. Here, an expanded graphite/PCM/graphene composite that solves these challenges is proposed. The expanded graphite/PCM phase change composite eliminates leakage and increases effective thermal conductivity while the graphene coating enables radiative cooling for PCM regeneration. The composite demonstrates excellent thermal performance in a real BTMS and shows a 26% decrease in temperature when compared to conventional BTMS materials. The composite exhibits thermal control performance comparable with active cooling, resulting in reduced cost and increased simplicity. In addition to BTMSs, this material is anticipated to have application in a plethora of engineered systems requiring stringent thermal management.

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Nano‐Enhanced Graphite/Phase Change Material/Graphene Composite for Sustainable and Efficient Passive Thermal Management

Wang,

Mao,

Miljkovic

2024

Advanced Science

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Numerical investigation of liquid nitrogen spray cooling under low ambient pressure

Liu,

Du,

Zhu

et al. 2024

International Journal of Heat and Mass Transfer

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Hypersonic heat barrier mitigation via structured thermal armor technology

Wang,

Li,

Zhong

et al. 2024

Preprint

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Hypersonic aerodynamic heating, also known as the heat barrier, is a dangerous energy form that humans have not yet fully overcome. The heat barrier has caused numerous catastrophic accidents and damage, as well as hindering the development of aerospace engineering. To date, indirect thermal protection methods, such as regenerative cooling, film cooling, and transpiration cooling, have proven to be complex, low in cooling efficiency, and detrimental to a hypersonic vehicle's reusability, maneuverability, and cost-effectiveness (RMC). Inspired by the latest Leidenfrost delay technology, we propose a direct liquid cooling technology to mitigate the effects of the heat barrier. Our proposed aluminum alloy-based structured thermal armor (STA) with a simple liquid cooling system, demonstrates the capability to rapidly mitigate simulated aerodynamic heating-induced extreme temperatures, exceeding 1400°C. This temperature is significantly higher than the melting points of conventional aircraft skin materials, such as aluminum alloys, which typically range from 600 to 700°C. Cycling tests indicate the STA's high durability and tolerance properties. Our research demonstrates that the STA is highly compatible with current hypersonic aerospace systems, promoting aerospace RMC. We also provide scale-up design guidelines for practical hypersonic vehicles' thermal protection. The STA offers a promising solution for hypersonic aerodynamic heating, providing a more efficient, durable, and cost-effective approach to thermal protection. This technology has the potential to revolutionize the aerospace industry, enabling the development of safer and more advanced hypersonic vehicles.

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Machine-assisted quantification of droplet boiling upon multiple solid materials

Cited by 3 publications

References 74 publications

Nano‐Enhanced Graphite/Phase Change Material/Graphene Composite for Sustainable and Efficient Passive Thermal Management

Nano‐Enhanced Graphite/Phase Change Material/Graphene Composite for Sustainable and Efficient Passive Thermal Management

Numerical investigation of liquid nitrogen spray cooling under low ambient pressure

Hypersonic heat barrier mitigation via structured thermal armor technology

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