A parametric analysis of heat transfer in composite nuclear fuels

1976 ◽  
Vol 39 (2-3) ◽  
pp. 241-247
Author(s):  
James H. Rust ◽  
David R. Boyle
Keyword(s):  
Heat Transfer ◽  
Parametric Analysis ◽  
Nuclear Fuels

Parametric Analysis of a Bayonet Tube With a Special Type of Extended Surface

2010 ◽  
Author(s):  
L. Almanza-Huerta ◽  
A. Hernandez-Guerrero ◽  
M. Krarti ◽  
J. M. Luna
Keyword(s):  
Heat Transfer ◽  
Parametric Analysis ◽  
Numerical Study ◽  
Systematic Investigation ◽  
Heat Transfer Characteristics ◽  
Maximum Heat ◽  
Turbulent Transition ◽  
Maximum Heat Transfer ◽  
Internal Fluid ◽  
Extended Surface

The present paper provides a numerical study of a parametric analysis of a bayonet tube with a special type of extended surface during the laminar-turbulent transition. The working internal fluid is air. Attention is focused on the heat transfer characteristics of the tube. The results constitute a systematic investigation of the effect of the extended surface located along the annulus of the bayonet on the overall heat transfer rate. The effects of the variation of some parameters related to the extended surface aiming to attain the maximum heat transfer with the minimum pressure drop are discussed. Comparisons between designs with and without extended surface are also made.

Parametric Analysis of Floor Cooling

2016 ◽  
Vol 861 ◽  
pp. 401-408
Author(s):  
Lucie Horká ◽  
Jan Weyr
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Numerical Simulation ◽  
Parametric Analysis ◽  
Cooling Water ◽  
Total Heat ◽  
Design Parameters ◽  
Total Heat Transfer ◽  
2D Numerical Simulation ◽  
Cooling Pipes

This study is aimed at parametric analysis of floor cooling. Impact of several design parameters such as air temperature, temperature of cooling water, distance of cooling pipes, thickness and thermal conductivity of top layer on total heat transfer of cooling floor is studied. The issue is solved by steady-state 2D numerical simulation of heat transfer to the floor construction. These parametric simulations are performed in software CalA. Impact of variable input parameters on total heat transfer is observed. Results of parametric analysis are displayed in a nomogram. This nomogram is useful for faster designing of floor cooling.

Numerical mesoscopic method for transportation of H2O-based nanofluid through a porous channel considering Lorentz forces

2019 ◽  
Vol 30 (02n03) ◽  
pp. 1950007 ◽  
Author(s):  
M. Sheikholeslami ◽  
M. Barzegar Gerdroodbary ◽  
Rasoul Moradi ◽  
Ahmad Shafee ◽  
Zhixiong Li
Keyword(s):  
Heat Transfer ◽  
Convective Flow ◽  
Parametric Analysis ◽  
Magnetic Force ◽  
Porous Ceramic ◽  
Porous Channel ◽  
Lorentz Forces ◽  
The Impact

Recently, various ways are investigated to augment heat transfer in different applications such as porous ceramic domain. Adding nanoparticles to fluid is the best operational way to increase the conduction of fluids. In this paper, migration of nanofluid inside a porous duct under the impact of magnetic force is scrutinized. LBM is applied to present comprehensive parametric analysis for various concentrations of nanofluid, Hartmann, Reynolds, and Darcy numbers. Outputs illustrate that Nu augments with improve of Lorentz forces. Augmenting Da significantly enhances the convective flow in our model.

scholarly journals Parametric Analysis of Heat Transfer on Multistage Cryogenic Radiator

2002 ◽  
Vol 16 (3) ◽  
pp. 313-323 ◽  
Author(s):  
Paulo Couto ◽  
Marcia B. H. Mantelli ◽  
E. E. Marotta ◽  
J. J. Fuller
Keyword(s):  
Heat Transfer ◽  
Parametric Analysis

Parametric Analysis of Effective Viscosity Models for Nanofluids

2012 ◽  
Author(s):  
J. P. Meyer ◽  
P. N. Nwosu ◽  
M. Sharifpur ◽  
T. Ntumba
Keyword(s):  
Heat Transfer ◽  
Parametric Analysis ◽  
Effective Viscosity ◽  
Rheological Behaviour ◽  
High Variability ◽  
Heat Transfer Fluids ◽  
Viscosity Models ◽  
Important Benefit ◽  
Wide Range ◽  
Model Predictions

Viscosity is an important consideration in the application of nanofluids as heat transfer fluids. Various models have been developed to predict the viscosity of nanofluids. The accuracy of these models is of important benefit in determining the rheological performance of nanofluids, particularly in conditions which vary continuously. In this paper, a parametric analysis is undertaken to investigate the degree of variability between empirical data and model predictions. It was found that there is high variability in the compared results, which suggests that a wide range of constitutive factors need to be incorporated into the models in order to account adequately for the rheological behaviour of nanofluids.

Effect of Air Flow on Heat Transfer in Walls

1994 ◽  
Vol 116 (1) ◽  
pp. 35-42 ◽  
Author(s):  
M. Krarti
Keyword(s):  
Heat Transfer ◽  
Thermal Load ◽  
Parametric Analysis ◽  
Energy Savings ◽  
Periodic Problem ◽  
Infiltration Rate ◽  
Temperature Profiles ◽  
Air Leakage ◽  
Heat Transmission ◽  
Building Walls

An analytical model to characterize the air leakage effects on the heat transfer within a permeable one-layered wall is presented. The general solution to the steady-periodic problem is presented. Temperature profiles and heat flux variations within the wall are analyzed. The effect of air flows on heat transmission through the wall are discussed using a parametric analysis. The thermal advantages of intentionally circulating air through building walls—to provide ventilation—are analyzed and discussed. In particular, the thermal performance of dynamic walls integrated in a whole building is analyzed as a function of the infiltration rate and the building thermal load. It is found that the dynamic walls can achieve energy savings of up to 20 percent of total building thermal load.

Sign in / Sign up

Export Citation Format

Share Document