Experimental investigation on heat transfer characteristics of copper heat exchangers based on triply periodic minimal surfaces (TPMS)

International Communications in Heat and Mass Transfer, Journal Year: 2024, Volume and Issue: 152, P. 107292 - 107292

Published: Feb. 8, 2024

Language: Английский

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Numerical and experimental investigation of the gyroid heat exchanger

International Journal of Heat and Mass Transfer, Journal Year: 2024, Volume and Issue: 231, P. 125882 - 125882

Published: June 29, 2024

This paper presents a study of novel type heat exchanger (HE) whose core is built based on Triply Periodic Minimal Surface structure. The this as periodic structure gyroid-type lattice and manufactured by laser powder-bed fusion technology. solution distinguished not only an exceptionally favorable ratio the exchange surface area to volume occupied but also unique geometry that additionally turbulates flow intensifies process. article contains results numerical analyses entire under different operating conditions small fragments filled with cells sizes. Numerical analyzes lattice-type are performed basis experimentally validated model. objective determine performance gyroid HE operational select best elementary cell size per for assumed conditions. printed was compared plate 30% larger, although one managed achieve 10.5% higher values in average Number Transfer Units (NTU) 5% temperature effectiveness (TE) studied range parameters.

Language: Английский

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Experimental and numerical analysis of functionally graded hybrid TPMS heat exchangers for enhanced flow and thermal performance

Applied Thermal Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 125528 - 125528

Published: Jan. 1, 2025

Language: Английский

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Gyroid-type TPMS structure optimization based on mathematical function control and its convective heat transfer performance study

International Communications in Heat and Mass Transfer, Journal Year: 2025, Volume and Issue: 162, P. 108682 - 108682

Published: Feb. 2, 2025

Language: Английский

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Triply periodic minimal surfaces for thermo-mechanical protection

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 11, 2025

Triply periodic minimal surface (TPMS) metamaterials show promise for thermal management systems but are challenging to integrate into existing packaging with strict mechanical requirements. Composite TPMS lattices may offer more control over and properties through material geometric tuning. Here, we fabricate copper-plated, 3D-printed triply primitive evaluate their suitability battery systems. We measure the effects of lattice geometry copper thickness on pressure drop, properties, conductivity. The as internal filling structures in a multichannel cold plate exhibited drops under 6.5 kPa at 1 LPM flow rate. Pressure drop decreased when number channels (width plate) was increased. With 0.43% volume loading, than tripled conductivity still retained polymer-like compliance. A higher relative density did not affect caused elastic modulus compressive strength, stiffer cyclic loading response. design demonstrates that structural parameters mechanical, can be decoupled, which used achieve wide range disparate complex multiphysics

Language: Английский

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Investigation of high-compactness and high-efficiency TPMS precoolers for precooled aero-engine

Energy, Journal Year: 2025, Volume and Issue: unknown, P. 135014 - 135014

Published: Feb. 1, 2025

Language: Английский

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Computational analysis and engineering modeling for the heat transfer and fluid flow through the gyroid TPMS structure

Applied Thermal Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 125865 - 125865

Published: Feb. 1, 2025

Language: Английский

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The matching effect of the cold-to-hot fluid on the thermohydraulic characteristics of heat exchangers using gyroid-typed triply periodic minimal surfaces

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(2)

Published: Feb. 1, 2025

The triply periodic minimal surface (TPMS) is a potential candidate for constructing the next-generation heat exchanger (HEX) due to its considerably high specific area and flexible topology. Considering flow rate volume ratio of cold-to-hot fluid domain, this work aims probe matching effect on thermohydraulic features cross-flow HEXs using gyroid TPMS structures. results indicate that owing contiguous intertwined path, structures induce three-dimensional spiral with three typical characteristics (“merge-split,” parallel, circulation) from different perspectives, dominating mixing exchanger. have negligible influence but intensities. Increasing cold-side velocity constant hot-side can remarkably enhance convection transfer cold side an increased pressure drop, while hot influenced negligibly. Finally, total gradually raised reaches stability limited transfer. A slightly higher recommended improving HEXs. In comparison, simultaneously affects fluid–solid interface internal under mutual restriction between fluids optimum Rvol = 1.0. With 0.42 1.0, by 7.7%, outlet temperature decreases 1.5 K. Compared traditional structures, structure offers 100% 150%–225% volume-based power density.

Language: Английский

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Effect of cell size and wall thickness on the compression performance of triply periodic minimal surface based AlSi10Mg lattice structures

Thin-Walled Structures, Journal Year: 2023, Volume and Issue: 193, P. 111214 - 111214

Published: Sept. 22, 2023

Language: Английский

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Convective heat transfer correlations for Triply Periodic Minimal Surfaces based heat exchangers

Applied Thermal Engineering, Journal Year: 2024, Volume and Issue: 242, P. 122492 - 122492

Published: Jan. 18, 2024

Lattice structures based on Triply Periodic Minimal Surfaces (TPMS) have been extensively studied in the field of heat exchange due to advantages they can offer terms increased area and enhanced convective phenomena, thanks their intricate geometry. Numerous studies conducted fluid motion within these structures, confirming that Computational Fluid Dynamics (CFD) simulations accurately replicate thermo-fluid dynamic behavior. However, such are computationally expensive may be difficult integrate larger models whole system. Traditionally, exchanger design relies transfer coefficient correlations non-dimensional groups, especially when dealing with turbulent flow. This study proposes a single correlation, results series CFD simulations, calculate for various fluids different TPMS topologies geometries. is achieved through careful selection characteristic lengths groups considered. Within an acceptance range ±20%, predictive capability correlation proved valid three distinct topologies: Gyroid, Schwarz-Primitive, Schwarz-Diamond. It applies across porosity 70% 90%, considering unit cell fluids. Furthermore, presents effect viscous heating at high Reynolds numbers compares proposed existing ones.

Language: Английский

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