Heat transfer in conductive monolith structures

Boger, Thorsten; Heibel, Achim

doi:10.1016/j.ces.2004.11.031

Cited by 77 publications

(53 citation statements)

References 7 publications

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“…Boger and Heibel [67] also reported that the contact resistance between the square-celled LCA and the surrounding tube had a strong impact on the overall performance. Boomsma et al [17] stated that imperfect brazing can affect the flow and heat transfer behavior due to added flow resistance near the wall.…”

Section: Mmcs For Heat Exchangersmentioning

confidence: 99%

A Review of Metal Foam and Metal Matrix Composites for Heat Exchangers and Heat Sinks

Han

Wang

Park³

et al. 2012

Heat Transfer Engineering

225

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Abstract:Recent advances in manufacturing methods open the possibility for broader use of metal foams and metal matrix composites (MMCs) for heat exchangers, and these materials can have tailored material properties. Metal foams in particular combine a number of interesting properties from a heat exchanger's point of view. In this paper, the material properties of metal foams and MMCs are surveyed, and the current state of the art is reviewed for heat exchanger applications. Four different applications are considered: liquid-liquid, liquid-gas and gas-gas heat exchangers and heat sinks. Manufacturing and implementation issues are identified and discussed, and it is concluded that these materials hold promise both for heat exchangers and heat sinks, but that some key issues still need to be solved before broad scale

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Section: Mmcs For Heat Exchangersmentioning

confidence: 99%

A Review of Metal Foam and Metal Matrix Composites for Heat Exchangers and Heat Sinks

Han

Wang

Park³

et al. 2012

Heat Transfer Engineering

225

View full text Add to dashboard Cite

show abstract

“…As demonstrated in the above-mentioned study, temperature gradients within the reactor can be efficiently reduced by using highly thermal conducting materials, like copper or brass, as catalyst support [79]. To avoid the subsequent coating of the structured metal Schuessler et al [80] proposed to add copper particles to the Cu/ZnO/Al 2 O 3 powder catalyst, commonly used for methanol reforming.…”

Section: Novel Designs Of Msrmentioning

confidence: 99%

Microstructured Reactors for Catalytic Reactions

Kiwi‐Minsker

Renken

2006

ChemInform

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This review addresses the catalytic reactions performed in microstructured reactors, which are more and more recognized in recent years as a novel approach for chemistry and chemical process industry. They are particularly suited for highly exothermic and fast reactions allowing temperature control and isothermal operation. A brief evaluation of the advantages for gas-phase, liquid-phase, and gas-liquid-solid reactions carried out in miniaturized devices is discussed. Alternative designs to achieve microstructured fluid patterns, besides microfabrication, are also described. #

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“…Available at www.ThermalFluidsCentral.org spots at the macro-scale are well recognized (Boger and Heibel, 2005;Groppi and Tronconi, 2005). However, less work has been devoted to the thermal uniformity in micro-combustors.…”

Section: Frontiers In Heat and Mass Transfermentioning

confidence: 99%

Computational Fluid Dynamics Simulation of the Thermal Uniformity in Catalytic Micro-Combustors

Chen¹,

Song²,

Xu³

2017

Frontiers in Heat and Mass Transfer

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The combustion and heat transfer characteristics of hydrogen-air or methane-air mixtures in catalytic micro-combustors were studied numerically to assess the impact of wall thermal properties and key operation parameters on the thermal uniformity. A two-dimensional computational fluid dynamics (CFD) model was developed with detailed hetero-/homogeneous chemistry, heat conduction within the solid wall, surface radiation heat transfer, and external heat losses. Parametric studies were carried out to investigate the effect of wall thermal conductivity, feed composition, and flow rate on the thermal uniformity during highly exothermic catalytic reactions. Comparisons of hydrogen-with methane-air systems were made. Based on these insights, an overall energy balance analysis was performed in terms of enthalpy loss. It was shown that the wall thermal properties strongly affect the thermal uniformity, but little impact on the extinction limit and conversion. The feed composition and flow rate have a significant impact on the operating temperature, but only a moderate effect on the thermal uniformity. Most of the enthalpy released by the exothermic reaction is lost to the surroundings under certain conditions, although this energy exchange becomes less efficient as the flow rate increases. This feature is beneficial for heat-exchanger applications.

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Heat transfer in conductive monolith structures

Cited by 77 publications

References 7 publications

A Review of Metal Foam and Metal Matrix Composites for Heat Exchangers and Heat Sinks

A Review of Metal Foam and Metal Matrix Composites for Heat Exchangers and Heat Sinks

Microstructured Reactors for Catalytic Reactions

Computational Fluid Dynamics Simulation of the Thermal Uniformity in Catalytic Micro-Combustors

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