Natural convection in water-saturated reticulated vitreous carbon foam

Jane H. Davidson; F. A. Kulacki; D. Savela

doi:10.1016/j.ijheatmasstransfer.2009.03.051

Natural convection in water-saturated reticulated vitreous carbon foam

Jane H. Davidson
, F. A. Kulacki
, D. Savela

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

Experiments of the Horton-Rogers-Lapwood type are reported for water-saturated, 97% porous reticulated vitreous carbon foam. Heat transfer data have been obtained for layer aspect ratios of 2.5 and 5, porous medium Rayleigh numbers from 140 to 4700, and Darcy numbers from 5 × 10^-5 to 37 × 10^-5. The data are well correlated in the form Nu_m = (0.007 ± 0.002) Ra_m^{0.504 ± 0.06} Pr_p^{0.41 ± 0.08} .Conduction through the solid phase plays a limited role, and the main heat transfer mechanism is advection. Correlation of the present data and water-saturated copper foam data [1] is achieved by inclusion of the conductivity ratio to give, Nu_m = (0.008 ± 0.003) fenced(frac(k_m, k_f)) ^{0.25 ± 0.04} Ra_m^{0.50 ± 0.02} Pr_p^{0.38 ± 0.04} .

Original language	English (US)
Pages (from-to)	4479-4483
Number of pages	5
Journal	International Journal of Heat and Mass Transfer
Volume	52
Issue number	19-20
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2009.03.051
State	Published - Sep 2009

Bibliographical note

Funding Information:
The support of the National Renewable Energy Laboratory, the University of Minnesota’s Initiative for Renewable Energy and the Environment, and the US Department of Energy is appreciated.

Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.

Keywords

Carbon foam
Metal foam
Natural convection
Porous media

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10.1016/j.ijheatmasstransfer.2009.03.051

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@article{93d426c002284d40adde7c0696d60051,

title = "Natural convection in water-saturated reticulated vitreous carbon foam",

abstract = "Experiments of the Horton-Rogers-Lapwood type are reported for water-saturated, 97\% porous reticulated vitreous carbon foam. Heat transfer data have been obtained for layer aspect ratios of 2.5 and 5, porous medium Rayleigh numbers from 140 to 4700, and Darcy numbers from 5 × 10-5 to 37 × 10-5. The data are well correlated in the form Num = (0.007 ± 0.002) Ram0.504 ± 0.06 Prp0.41 ± 0.08 .Conduction through the solid phase plays a limited role, and the main heat transfer mechanism is advection. Correlation of the present data and water-saturated copper foam data [1] is achieved by inclusion of the conductivity ratio to give, Num = (0.008 ± 0.003) fenced(frac(km, kf)) 0.25 ± 0.04 Ram0.50 ± 0.02 Prp0.38 ± 0.04 .",

keywords = "Carbon foam, Metal foam, Natural convection, Porous media",

author = "Davidson, \{Jane H.\} and Kulacki, \{F. A.\} and D. Savela",

note = "Funding Information: The support of the National Renewable Energy Laboratory, the University of Minnesota{\textquoteright}s Initiative for Renewable Energy and the Environment, and the US Department of Energy is appreciated. Copyright: Copyright 2009 Elsevier B.V., All rights reserved.",

year = "2009",

month = sep,

doi = "10.1016/j.ijheatmasstransfer.2009.03.051",

language = "English (US)",

volume = "52",

pages = "4479--4483",

journal = "International Journal of Heat and Mass Transfer",

issn = "0017-9310",

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number = "19-20",

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TY - JOUR

T1 - Natural convection in water-saturated reticulated vitreous carbon foam

AU - Davidson, Jane H.

AU - Kulacki, F. A.

AU - Savela, D.

N1 - Funding Information: The support of the National Renewable Energy Laboratory, the University of Minnesota’s Initiative for Renewable Energy and the Environment, and the US Department of Energy is appreciated. Copyright: Copyright 2009 Elsevier B.V., All rights reserved.

PY - 2009/9

Y1 - 2009/9

N2 - Experiments of the Horton-Rogers-Lapwood type are reported for water-saturated, 97% porous reticulated vitreous carbon foam. Heat transfer data have been obtained for layer aspect ratios of 2.5 and 5, porous medium Rayleigh numbers from 140 to 4700, and Darcy numbers from 5 × 10-5 to 37 × 10-5. The data are well correlated in the form Num = (0.007 ± 0.002) Ram0.504 ± 0.06 Prp0.41 ± 0.08 .Conduction through the solid phase plays a limited role, and the main heat transfer mechanism is advection. Correlation of the present data and water-saturated copper foam data [1] is achieved by inclusion of the conductivity ratio to give, Num = (0.008 ± 0.003) fenced(frac(km, kf)) 0.25 ± 0.04 Ram0.50 ± 0.02 Prp0.38 ± 0.04 .

AB - Experiments of the Horton-Rogers-Lapwood type are reported for water-saturated, 97% porous reticulated vitreous carbon foam. Heat transfer data have been obtained for layer aspect ratios of 2.5 and 5, porous medium Rayleigh numbers from 140 to 4700, and Darcy numbers from 5 × 10-5 to 37 × 10-5. The data are well correlated in the form Num = (0.007 ± 0.002) Ram0.504 ± 0.06 Prp0.41 ± 0.08 .Conduction through the solid phase plays a limited role, and the main heat transfer mechanism is advection. Correlation of the present data and water-saturated copper foam data [1] is achieved by inclusion of the conductivity ratio to give, Num = (0.008 ± 0.003) fenced(frac(km, kf)) 0.25 ± 0.04 Ram0.50 ± 0.02 Prp0.38 ± 0.04 .

KW - Carbon foam

KW - Metal foam

KW - Natural convection

KW - Porous media

UR - https://www.scopus.com/pages/publications/67650085527

UR - https://www.scopus.com/pages/publications/67650085527#tab=citedBy

U2 - 10.1016/j.ijheatmasstransfer.2009.03.051

DO - 10.1016/j.ijheatmasstransfer.2009.03.051

M3 - Article

AN - SCOPUS:67650085527

SN - 0017-9310

VL - 52

SP - 4479

EP - 4483

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

IS - 19-20

ER -

Natural convection in water-saturated reticulated vitreous carbon foam

Abstract

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