Journal ArticleDOI
Heat transfer and hydraulic resistance of supercritical pressure coolants. Part III: Generalized description of SCP fluids normal heat transfer, empirical calculating correlations, integral method of theoretical calculations
TLDR
In this paper, the problems of generalized description of the supercritical-pressure fluids "normal" heat transfer are analyzed and the known empirical correlations are considered and their efficiency is assessed in view of using the refined International Standards on water and carbon dioxide thermophysical properties.About:
This article is published in International Journal of Heat and Mass Transfer.The article was published on 2013-12-01. It has received 40 citations till now. The article focuses on the topics: Convective heat transfer & Heat transfer coefficient.read more
Citations
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Improvement of buoyancy and acceleration parameters for forced and mixed convective heat transfer to supercritical fluids flowing in vertical tubes
TL;DR: In this article, an analytical approach is applied to examine the buoyancy and acceleration effects on forced and mixed convective heat transfer at supercritical pressures, and two non-dimensional parameters have been developed for these effects.
Journal ArticleDOI
PDF-based modeling on the turbulent convection heat transfer of supercritical CO2 in the printed circuit heat exchangers for the supercritical CO2 Brayton cycle
TL;DR: A physically improved semi-empirical correlation for the forced convection heat transfer of supercritical CO2 within a semi-circular printed circuit heat exchanger was developed by implementing probability density function (PDF)-based property revised technique for more reasonably interpreting the influence of the instantaneous turbulent temperature and fluctuating properties.
Journal ArticleDOI
Effect of turbulence models on predicting convective heat transfer to hydrocarbon fuel at supercritical pressure
TL;DR: In this paper, a variety of turbulence models were used to perform numerical simulations of heat transfer for hydrocarbon fuel flowing upward and downward through uniformly heated vertical pipes at supercritical pressure.
Journal ArticleDOI
Modeling convective heat transfer of supercritical carbon dioxide using an artificial neural network
TL;DR: In this paper, an artificial neural network (ANN) is proposed to model sCO2 heat transfer with experimental datasets, which shows a great learning ability and satisfactory generalization performance with a correlation coefficient of 0.99 and a mean absolute percent error of0.97% in the test dataset.
Journal ArticleDOI
Flow and heat transfer characteristics of high-pressure water flowing in a vertical upward smooth tube at low mass flux conditions
TL;DR: In this paper, a wide range of parameters were investigated to investigate the flow and heat transfer characteristics of water flowing in a vertical upward smooth tube and the corresponding empirical correlations were presented.
References
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Journal ArticleDOI
The Transport Properties of Carbon Dioxide
TL;DR: In this article, the authors present new, representative equations for the viscosity and thermal conductivity of carbon dioxide, which are based in part upon a body of experimental data that have been critically assessed for internal consistency and for agreement with theory whenever possible.
Journal ArticleDOI
Forced convective heat transfer to supercritical water flowing in tubes
TL;DR: In this article, a comprehensive set of data was obtained for pressures from 226 to 294 bar, bulk temperatures from 230 to 540°C, heat fluxes from 116 to 930 kW/m 2 and mass velocities from 310 to 1830 kg/m2s.
Journal ArticleDOI
Heat Transfer to Supercritical Water in Smooth-Bore Tubes
Book
Heat Transfer and Hydraulic Resistance at Supercritical Pressures in Power Engineering Applications
Igor Pioro,Romney B. Duffey +1 more
TL;DR: In this article, the results from over 500 of the latest sources from the global publications devoted to heat transfer and hydraulic resistance of fluids flowing inside channels of various geometries at near-critical and supercritical pressures are presented.
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Heat Transfer and Hydraulic Resistance at Supercritical Pressures in Power Engineering Applications
Igor Pioro,Romney B. Duffey +1 more