scholarly journals Hydrodynamics and Convective Heat Transfer in Open Cell Foam with Micropores

2021 ◽  
Vol 54 ◽  
pp. 64-68
Author(s):  
Olga Soloveva ◽  
Sergei Solovev ◽  
Ruzil Yafizov
Keyword(s):  
Heat Transfer ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Open Cell ◽  
Open Cell Foam ◽  
Cell Foam

INVESTIGATION OF HYDRODYNAMICS AND CONVECTIVE HEAT TRANSFER IN THE OPEN CELL FOAM MODELS OF VARIOUS GEOMETRY

2019 ◽  
Vol 57 (4) ◽  
pp. 109-121
Author(s):  
O.V. Soloveva ◽  
◽  
N.D. Yakimov ◽  
N.D. Chichirova ◽  
◽  
...  
Keyword(s):  
Heat Transfer ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Open Cell ◽  
Open Cell Foam ◽  
Cell Foam

Anisotropic convective heat transfer in open-cell metal foams: Assessment and correlations

2020 ◽  
Vol 154 ◽  
pp. 119682 ◽  
Author(s):  
Marcello Iasiello ◽  
Nicola Bianco ◽  
Wilson K.S. Chiu ◽  
Vincenzo Naso
Keyword(s):  
Heat Transfer ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Metal Foams ◽  
Open Cell

Experiment on the convective heat transfer from airflow to skeleton in open-cell porous foams

2017 ◽  
Vol 106 ◽  
pp. 83-90 ◽  
Author(s):  
Xin-lin Xia ◽  
Xue Chen ◽  
Chuang Sun ◽  
Zhen-huan Li ◽  
Bo Liu
Keyword(s):  
Heat Transfer ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Open Cell

Effect of Foam Properties on Heat Transfer in High Temperature Open-Cell Foam Inserts

2012 ◽  
Vol 95 (6) ◽  
pp. 2015-2021 ◽  
Author(s):  
Charles C. Tseng ◽  
Ruth L. Sikorski ◽  
Raymond Viskanta ◽  
Ming Y. Chen
Keyword(s):  
Heat Transfer ◽  
High Temperature ◽  
Open Cell ◽  
Open Cell Foam ◽  
Foam Properties ◽  
Cell Foam

An Update on Heat Transfer in a Porous Insulation Medium in a Subsea Bundled Pipeline

2001 ◽  
Vol 123 (4) ◽  
pp. 285-290 ◽  
Author(s):  
Gary Zheng ◽  
Allen Verret ◽  
Nancy Burke ◽  
Neal Prescott ◽  
Dennis Cai ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Pipe Wall ◽  
Effective Conductivity ◽  
Nitrogen Pressure ◽  
Heat Losses ◽  
Foam Material ◽  
Open Cell ◽  
Open Cell Foam ◽  
Energy Equations ◽  
Cell Foam

At the Multiphase ’99 Conference in Cannes, France, the authors presented a simple, yet general, formulation for effective conductivity of a porous insulation medium under pipeline application using fundamental continuity, momentum, and energy equations Zheng et al., 1999, “Heat Transfer in a Porous Insulation Medium in a Subsea Bundled Pipeline,” Paper No. 48 presented at Multiphase ’99, Cannes, France, ©BRH Group 1999. The effective conductivity was shown as a function of Darcy-modified Raleigh number only. The coefficients in the equation were then obtained from a set of tests for a simple pipe-in-pipe bundle with half-shell pieces of foam fitted around the inner pipe. Dramatic heat losses as experienced in some of field applications were recorded when the porous insulation foam is under high nitrogen pressure. All the heat losses were attributed to the increased heat convection within the porous insulation medium. Recognizing loose spaces between half-shells may contribute to the dramatic heat losses, the authors from R. J. Brown Deepwater conducted a new set of tests that used the same open-cell foam material, but with foamed-in-place application on the inner pipe wall. The new test data are used in this paper to derive an updated set of coefficients for the effective conductivity formulation. It is shown that such a foamed-in-place open-cell foam system maintains insulation effectiveness, even under high application pressures.

Heat Transfer in Open Cell Foam Insulation

1996 ◽  
Vol 118 (1) ◽  
pp. 88-93 ◽  
Author(s):  
D. Doermann ◽  
J. F. Sacadura
Keyword(s):  
Heat Transfer ◽  
Extinction Coefficient ◽  
Solid Material ◽  
Diffraction Theory ◽  
Radiative Properties ◽  
Cell Interior ◽  
Open Cell ◽  
Scattering Coefficients ◽  
Open Cell Foam ◽  
Cell Foam

Heat transfer in open cell foam insulation occurs by conduction through the solid material and through the gas in the cell interior and by thermal radiation, which propagates through the structure. The conductive process within these media is described using a simple parallel-series model. Spectral volumetric absorption and scattering coefficients as well as the spectral phase function are predicted using a combination of geometric optics laws and diffraction theory to model the interaction of radiation with the particles forming the foam. The particles considered are both struts formed at the juncture of three cells and strut junctures. The radiative properties can then be utilized to obtain a weighted extinction coefficient, which can be used in the Rosseland equation to obtain the radiative flux. The innovative part of the work lies in the radiative properties predictive model. This new model is compared with simpler ones.

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