Consideration of advanced power plant such as nuclear reactors cooled by water at pressures above the critical value has stimulated a renewed interest in heat transfer to supercritical pressure fluids. Severe deterioration in the effectiveness of heat transfer can be encountered as a result of the extreme dependence on temperature of the physical properties of such fluids, particularly near the pseudocritical temperature where their molecular structure changes from being liquid-like to gaseous. This deterioration arises mainly as a result of the non-uniformity of density, which can lead to significant influences of bulk flow acceleration and fluid buoyancy. A good physical understanding has been arrived at of the mechanisms by means of which such influences can modify the mean flow and turbulence fields and thereby the advection and turbulent diffusion of heat and effectiveness of heat transfer. However, this progress in understanding the physics has so far not resulted in such effects being reliably accounted for in the empirical equations which are available for thermal design. With a view to addressing this matter, the author has recently attempted to update and improve an existing physically-based semi-empirical model of variable property heat transfer. The aim has been to combine it with a soundly-based empirical forced convection equation to extend the applicability and reliability of currently available thermal design procedures. In the present paper, progress in validating this approach and optimising the performance of the extended equation is reported.
Skip Nav Destination
17th International Conference on Nuclear Engineering
July 12–16, 2009
Brussels, Belgium
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-4353-6
PROCEEDINGS PAPER
Progress in Developing an Improved Empirical Heat Transfer Equation for Use in Connection With Advanced Nuclear Reactors Cooled by Water at Supercritical Pressure
J. Derek Jackson
J. Derek Jackson
The University of Manchester, Manchester, UK
Search for other works by this author on:
J. Derek Jackson
The University of Manchester, Manchester, UK
Paper No:
ICONE17-76022, pp. 807-819; 13 pages
Published Online:
February 25, 2010
Citation
Jackson, JD. "Progress in Developing an Improved Empirical Heat Transfer Equation for Use in Connection With Advanced Nuclear Reactors Cooled by Water at Supercritical Pressure." Proceedings of the 17th International Conference on Nuclear Engineering. Volume 3: Thermal Hydraulics; Current Advanced Reactors: Plant Design, Construction, Workforce and Public Acceptance. Brussels, Belgium. July 12–16, 2009. pp. 807-819. ASME. https://doi.org/10.1115/ICONE17-76022
Download citation file:
45
Views
Related Proceedings Papers
Related Articles
Heat Transfer and Fluid Flow Characteristics in Supercritical Pressure Water
J. Heat Transfer (July,2009)
Screening and Correlating Data on Heat Transfer to Fluids at Supercritical Pressure
ASME J of Nuclear Rad Sci (January,2016)
Numerical Investigation of the Heat Transfer Characteristics of Liquid Lithium Metal in Spiral Tubes
J. Thermal Sci. Eng. Appl (December,2023)
Related Chapters
Introduction
Heat Transfer & Hydraulic Resistance at Supercritical Pressures in Power Engineering Applications
Summary
Heat Transfer & Hydraulic Resistance at Supercritical Pressures in Power Engineering Applications
Studies Performed
Closed-Cycle Gas Turbines: Operating Experience and Future Potential