Fabrication of Metal-Based Microchannel Heat Exchangers and Quantification of Their Liquid Flow and Heat Transfer Characteristics

Lü, Bin; Mei, Fanghua; Meng, W. J.; Guo, Shengmin

doi:10.1080/01457632.2013.694733

Cited by 10 publications

(3 citation statements)

References 35 publications

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“…Table 2 describes the various manufacturing methods adopted according to the materials. Copper Micro-Machining (Diamond)/Diffusion Bonding Kang et al, 1994 Base Metal Alloys Micro-Machining (Milling) Halbritter et al, 2004 Copper, stainless steel, aluminium and titanium Diffusion bonding, electron beam welding and laser welding, multi-tool milling, selective laser melting Awyer and Shaavan,2004;Bier,1990;Bier et al,1993;Caw et al,2010;Min et al,2008;Tsopanos et al,2005;Jiang et al,2012;Lu et al,2013 Metal and its alloys are fabricated using Micro-Machining (Milling) Diffusion bonding, electron beam welding, and laser welding, multi-tool milling, selective laser melting, sintering, transient liquid phase bonding. Whereas silicon and silicon-based materials are fabricated with Micro stereolithography etc.…”

Section: Manufacturing Methodsmentioning

confidence: 99%

A Comprehensive Review on Microchannel Heat Exchangers, Heat Sink, and Polymer Heat Exchangers: Current State of the Art

Sur¹,

Gulia²

2022

Frontiers in Heat and Mass Transfer

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Over the past few decades, the world is moving towards miniature products owing to the technological developments in variegated industrial domains such as aerospace, biomedical, electronics, etc. This has led to the exponential growth of efficient micro cooling systems which are light in weight and have effective thermal performance. Microchannel Heat Sinks and Microchannel Heat Exchangers are the widely adopted solutions for such efficient micro cooling systems. This paper comprehensively reviews the recent developments in the field of Microchannel Heat Sinks and Microchannel Heat Exchangers. Initially, the concept of microchannel cooling is discussed. Further, a comprehensive review of materials, fabrication methods, experimental investigation, and numerical analysis is presented.

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Section: Manufacturing Methodsmentioning

confidence: 99%

A Comprehensive Review on Microchannel Heat Exchangers, Heat Sink, and Polymer Heat Exchangers: Current State of the Art

Sur¹,

Gulia²

2022

Frontiers in Heat and Mass Transfer

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“…Computational models that can characterize the properties of these materials, such as thin-films and micro-pillars, and enable predictions of the fabrication processes are critically needed to advance the miniaturization of microsystem technology. One example of such fabrication processes is micro-scale metal forming, e.g., [72,76,161], which relies on plastic deformation for the manufacturing of metallic microstructures with desirable geometries. In addition to micro-fabrication's technology, investigating the mechanical behavior of small-volume materials provides a unique opportunity to understand the underlying micromechanics of deformation and failure processes in larger-scale materials and structures [136,131].…”

Section: Introductionmentioning

confidence: 99%

A Predictive Discrete-Continuum Multiscale Model of Plasticity With Quantified Uncertainty

Tan

Villa

Shamsaei

et al. 2020

Preprint

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Multiscale models of materials, consisting of upscaling discrete simulations to continuum models, are unique in their capability to simulate complex materials behavior. The fundamental limitation in multiscale models is the presence of uncertainty in the computational predictions delivered by them. In this work, a sequential multiscale model has been developed, incorporating discrete dislocation dynamics (DDD) simulations and a strain gradient plasticity (SGP) model to predict the size effect in plastic deformations of metallic micro-pillars. The DDD simulations include uniaxial compression of micro-pillars with different sizes and over a wide range of initial dislocation densities and spatial distributions of dislocations. An SGP model is employed at the continuum level that accounts for the size-dependency of flow stress and hardening rate. Sequences of uncertainty analyses have been performed to assess the predictive capability of the multiscale model. The variance-based global sensitivity analysis determines the effect of parameter uncertainty on the SGP model prediction. The multiscale model is then constructed by calibrating the continuum model using the data furnished by the DDD simulations. A Bayesian calibration method is implemented to quantify the uncertainty due to microstructural randomness in discrete dislocation simulations (density and spatial distributions of dislocations) on the macroscopic continuum model prediction (size effect in plastic deformation). The outcomes of this study indicate that the discrete-continuum multiscale model can accurately simulate the plastic deformation of micro-pillars, despite the significant uncertainty in the DDD results. Additionally, depending on the macroscopic features represented by the DDD simulations, the SGP model can reliably predict the size effect in plasticity responses of the micropillars with below 10% of error.

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“…As an alternative, technologies for fabricating microchannel arrays on sheet metals and bonding metallic, open microchannel arrays into fully enclosed MHEs have been developed [8][9][10][11]. Cu-and Al-based MHEs were built, and their liquid flow characteristics and heat transfer performances were measured [12][13][14][15]. Metal-based MHEs possess advantages over Si-based counterparts, including increased mechanical robustness and improved heat transfer performance due to the higher bulk thermal conductivity values of metals compared to that of Si.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of Cu-based, double-layered, microchannel heat exchangers

Lü

Meng

Mei

2013

J. Micromech. Microeng.

Self Cite

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Cu-based, single- and double-layered, microchannel heat exchangers (MHEs) were fabricated and assembled. Comparative measurements on liquid flow characteristics and heat transfer performance were conducted on these devices. Results were compared at the individual microchannel level as well as at the device level. The present results demonstrate that double-layered MHEs exhibit similar heat transfer performance while suffering a much lower pressure drop penalty compared to single-layered MHEs. Another Cu-based, double-layered, liquid–liquid counter-flow MHE was fabricated, assembled and tested. Results show that a low-volume, multilayered, high-performance, liquid-to-liquid MHE is achievable following the manufacturing protocols of the present double-layered, liquid–liquid counter-flow MHE.

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Fabrication of Metal-Based Microchannel Heat Exchangers and Quantification of Their Liquid Flow and Heat Transfer Characteristics

Cited by 10 publications

References 35 publications

A Comprehensive Review on Microchannel Heat Exchangers, Heat Sink, and Polymer Heat Exchangers: Current State of the Art

A Comprehensive Review on Microchannel Heat Exchangers, Heat Sink, and Polymer Heat Exchangers: Current State of the Art

A Predictive Discrete-Continuum Multiscale Model of Plasticity With Quantified Uncertainty

Experimental investigation of Cu-based, double-layered, microchannel heat exchangers

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