The Experts below are selected from a list of 306 Experts worldwide ranked by ideXlab platform
Stanley A. Mumma - One of the best experts on this subject based on the ideXlab platform.
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Impact of Mixed Convection on Ceiling Radiant Cooling Panel Capacity
HVAC&R Research, 2003Co-Authors: Jae-weon Jeong, Stanley A. MummaAbstract:The main thrust of the research described in this paper was to develop a simplified method of accurately estimating the impact of Mixed Convection on the cooling capacity of a ceiling radiant panel in mechanically ventilated spaces. The simplified correlation for Mixed Convection heat transfer was derived from established Mixed and natural Convection correlations. It was found that the total capacity of ceiling radiant cooling panels can be enhanced in Mixed Convection situations by 5% to 35% under normal operating temperatures.
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Ceiling radiant cooling panel capacity enhanced by Mixed Convection in mechanically ventilated spaces
Applied Thermal Engineering, 2003Co-Authors: Jae-weon Jeong, Stanley A. MummaAbstract:Abstract The main thrust of this research is to estimate the impact of the Mixed Convection effect on the cooling capacity of a ceiling radiant panel in mechanically ventilated spaces. To estimate panel cooling capacity enhancement caused by Mixed Convection, a verified analytical panel model was used. The simplified correlation for Mixed Convection heat transfer coefficient which can be easily adopted in panel cooling capacity estimation was derived from established Mixed Convection and natural Convection correlations. It was found that the total cooling capacity of radiant panels can be enhanced in Mixed Convection situations by 5–35% under normal operating panel surface temperatures.
T. K. Aldoss - One of the best experts on this subject based on the ideXlab platform.
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MHD Mixed Convection from a vertical cylinder embedded in a porous medium
International Communications in Heat and Mass Transfer, 1996Co-Authors: T. K. AldossAbstract:MHD Mixed Convection flow about a vertical cylinder embedded in a porous medium is considered using non-Darcian model. Variable heat transfer boundary condition is incorporated. A transformation that enable solving for the entire Mixed Convection regime is introduced. Results are obtained using a finite difference scheme. The effect of the applied magnetic field on the heat transfer coeffecient and on the wall shear stress is presented for the entire Mixed Convection regime including pure forced and pure natural Convection limits. The magnetic field is found to have different behavior in the forced Convection dominated regime other than that in natural Convection dominated regime.
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MAGNETOHYDRODYNAMIC Mixed Convection FROM A VERTICAL PLATE EMBEDDED IN A POROUS MEDIUM
Numerical Heat Transfer Part A: Applications, 1995Co-Authors: T. K. Aldoss, Moh’d A. Al-nimr, M.a. Jarrah, B. J. Al-sha'erAbstract:Magnetohydrodynamic Mixed Convection flow about a vertical flat plate embedded in a porous medium is considered. The effect of the magnetic field strength on the local Nusselt number and local wall shear stress is presented. The non-Darcian model including both the inertial and boundary effects is used. A particular transformation for the governing equations is adopted to cover the whole Mixed Convection regime within two finite limits. Appreciable effects of the magnetic field strength on the local Nusselt number as well as on the local wall shear stress in the Mixed Convection regime are found.
Jae-weon Jeong - One of the best experts on this subject based on the ideXlab platform.
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Impact of Mixed Convection on Ceiling Radiant Cooling Panel Capacity
HVAC&R Research, 2003Co-Authors: Jae-weon Jeong, Stanley A. MummaAbstract:The main thrust of the research described in this paper was to develop a simplified method of accurately estimating the impact of Mixed Convection on the cooling capacity of a ceiling radiant panel in mechanically ventilated spaces. The simplified correlation for Mixed Convection heat transfer was derived from established Mixed and natural Convection correlations. It was found that the total capacity of ceiling radiant cooling panels can be enhanced in Mixed Convection situations by 5% to 35% under normal operating temperatures.
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Ceiling radiant cooling panel capacity enhanced by Mixed Convection in mechanically ventilated spaces
Applied Thermal Engineering, 2003Co-Authors: Jae-weon Jeong, Stanley A. MummaAbstract:Abstract The main thrust of this research is to estimate the impact of the Mixed Convection effect on the cooling capacity of a ceiling radiant panel in mechanically ventilated spaces. To estimate panel cooling capacity enhancement caused by Mixed Convection, a verified analytical panel model was used. The simplified correlation for Mixed Convection heat transfer coefficient which can be easily adopted in panel cooling capacity estimation was derived from established Mixed Convection and natural Convection correlations. It was found that the total cooling capacity of radiant panels can be enhanced in Mixed Convection situations by 5–35% under normal operating panel surface temperatures.
B. J. Al-sha'er - One of the best experts on this subject based on the ideXlab platform.
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MAGNETOHYDRODYNAMIC Mixed Convection FROM A VERTICAL PLATE EMBEDDED IN A POROUS MEDIUM
Numerical Heat Transfer Part A: Applications, 1995Co-Authors: T. K. Aldoss, Moh’d A. Al-nimr, M.a. Jarrah, B. J. Al-sha'erAbstract:Magnetohydrodynamic Mixed Convection flow about a vertical flat plate embedded in a porous medium is considered. The effect of the magnetic field strength on the local Nusselt number and local wall shear stress is presented. The non-Darcian model including both the inertial and boundary effects is used. A particular transformation for the governing equations is adopted to cover the whole Mixed Convection regime within two finite limits. Appreciable effects of the magnetic field strength on the local Nusselt number as well as on the local wall shear stress in the Mixed Convection regime are found.
Yi Wang - One of the best experts on this subject based on the ideXlab platform.
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predictive accuracy of boussinesq approximation in opposed Mixed Convection with a high temperature heat source inside a building
Building and Environment, 2018Co-Authors: Yu Zhou, Mengying Wang, Manning Wang, Yi WangAbstract:Abstract The density model of Boussinesq approximation has been extensively used in Mixed Convection. Literature have investigated the validity of Boussinesq approximation in natural Convection; however, there is no related study in Mixed Convection. This work aims to investigate the accuracy of Boussinesq approximation in Mixed Convection. In this paper, Mixed Convection is generated by a thermal plume from a heat source (natural Convection) and a downward air jet from the inlet (forced Convection). An experiment is set up to validate the computational fluid dynamics (CFD) simulations for the Boussinesq approximation and incompressible ideal gas density models. Results indicate incompressible ideal gas model can be used as a comparative reference to quantitatively investigate the predictive accuracy of the Boussinesq approximation in simulations. Then, simulation results show the accuracy of Boussinesq approximation in Mixed Convection correlates with Archimedes number, not temperature difference. Accuracy trends are different for forced Convection dominated flow, comparable Mixed Convection, and natural Convection dominated flow. This work is of fundamental importance for the application of Boussinesq approximation in Mixed Convection with a high-temperature heat source, especially in industrial buildings.