Exergy Transfer Analysis of Forced Convection in External Flow over a Flat Plate
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Shuang-Ying Wu
Abstract
On the basis of linear non-equilibrium thermodynamic theory, exergy transfer analyses of laminar and turbulent forced convection are conducted in terms of external flows over a flat plate. Two kinds of non-dimensional concepts involving the definition of the local and mean exergy transfer Nusselt number and non-dimensional exergy flux are incorporated into exergy transfer analysis. The new analytical expressions for the local and mean exergy transfer Nusselt number and non-dimensional exergy flux are adopted to describe the exergy transfer characteristics over a flat plate. By taking air as working fluid, the influences of flat plate geometry, Reynolds number, and other operating parameters on the exergy transfer Nusselt number and non-dimensional exergy flux are examined. It is shown how the flow geometric parameters and Reynolds number, etc., may be selected in order to maximize the exergy utilization associated with a specific external convection process. In addition, the results obtained from exergy transfer analysis are compared with those obtained from traditional heat transfer analysis.
© 2009 Walter de Gruyter · Berlin · New York
Artikel in diesem Heft
- Acknowledgement
- Index of Authors
- Analytical Subject Index Volume 34
- Contents of Volume 34 (2009)
- Different Thermodynamic Theories and Different Heat Conduction Laws
- Exergy Transfer Analysis of Forced Convection in External Flow over a Flat Plate
- On Diffusion and Permeation
- Non-Equilibrium Thermodynamics of Gene Expression and Transcriptional Regulation
- “Hydrodynamic Fluctuations in Fluids and Fluid Mixtures” by J. Ortiz de Zárate and J.V. Sengers
- “Understanding Nonequilibrium Thermodynamics” by G. Lebon, D. Jou and J. Casas-Vázquez
Artikel in diesem Heft
- Acknowledgement
- Index of Authors
- Analytical Subject Index Volume 34
- Contents of Volume 34 (2009)
- Different Thermodynamic Theories and Different Heat Conduction Laws
- Exergy Transfer Analysis of Forced Convection in External Flow over a Flat Plate
- On Diffusion and Permeation
- Non-Equilibrium Thermodynamics of Gene Expression and Transcriptional Regulation
- “Hydrodynamic Fluctuations in Fluids and Fluid Mixtures” by J. Ortiz de Zárate and J.V. Sengers
- “Understanding Nonequilibrium Thermodynamics” by G. Lebon, D. Jou and J. Casas-Vázquez
