Results 261 to 270 of about 147,924 (303)

Heat transfer and hydraulic resistance of supercritical pressure coolants. Part IV: Problems of generalized heat transfer description, methods of predicting deteriorated heat transfer; empirical correlations; deteriorated heat transfer enhancement; dissolved gas effects

International Journal of Heat and Mass Transfer, 2014
Abstract The review and analysis of existed recommendations for predicting the conditions, when a cumulative effect of the factors that lead to heat transfer deterioration becomes significant, and determining the boundaries of normal heat transfer are presented. The correlations for calculating deteriorated heat transfer are given.
V.A. Kurganov, Yu.A. Zeigarnik, I.V. Maslakova   +2 more
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Pseudo-boiling and heat transfer deterioration while heating supercritical liquid rocket engine propellants

The Journal of Supercritical Fluids, 2021
Abstract Heating of liquid propellants used as the coolant in rocket engines may lead to undesired phenomena such as pseudo-boiling or heat transfer deterioration under specific conditions. This can be an issue for propellants characterized at the same time by relatively low critical pressure and temperature.
Nasuti F., Pizzarelli M.
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Deteriorated turbulent heat transfer (DTHT) of gas up-flow in a circular tube: Heat transfer correlations

International Journal of Heat and Mass Transfer, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lee, JI Lee, JeongIk, Hejzlar, P, Saha, P, Kazimi, MS, McEligot, DM   +4 more
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Heat Transfer Deterioration Onset of Hydrocarbon Fuel at Supercritical Pressure

Volume 5B: Heat Transfer, 2017
The present study pays attention to the pressure effect and geometric effect on heat transfer deterioration onset to supercritical hydrocarbon fuel. Numerical simulation about heat transfer deterioration of hydrocarbon fuel flowing upward in vertical round tubes with various diameter at supercritical pressure was performed.
Zeyuan Cheng, Zhi Tao, Jianqin Zhu, Haiwang Li, Longyun Wang   +4 more
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Temperature-Dependent Heat Transfer Deterioration In Ordered Graphene/Ceramic Composites

Journal of the American Ceramic Society
Abstract Boosting heat transfer of ultrahigh temperature ceramics (UHTCs) with dimensional‐crossover graphene has become an increasing challenge for improving the thermal protective performance of new‐generation spacecraft.
Baoxi Zhang, Xiaohan Zhou, Zhanxiang Zhang, Shenglong Rui, Weiwei Zhang   +4 more
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The Investigation of Heat Transfer Deterioration in Supercritical Water Heating Systems

Volume 6: Thermal-Hydraulics and Safety Analysis
Abstract The object of this study is to investigate the heat transfer deterioration (HTD) in the supercritical water (SCW) heating systems. The present study develops a new empirical correlation for predicting the onset heat flux of HTD in SCW and are compared with the existing ones in literature.
Yu-Sen Chen, Jin-Der Lee, Shao-Wen Chen
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Visualization Investigation of Secondary Flow on Heat Transfer Deterioration in Horizontal Heat Tube

Volume 2A: Thermal Hydraulics, 2014
Mixed convection heat transfer in heated tubes has been studied extensively in the past decades, which is widely used in various industrial fields such as cooling of a nuclear reactor core. The secondary flow, which is induced by buoyancy force, has been found in previous research to have profound influence on the heat transfer difference on ...
Chao Wu, Hui-xiong Li, Qian Zhang
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A CFD-derived correlation for methane heat transfer deterioration

Numerical Heat Transfer, Part A: Applications, 2015
ABSTRACTMethane heat-transfer deterioration can occur in the regenerative cooling channels of future liquid-oxygen/liquid-methane rocket engines with chamber pressures higher than about 50 bar. Aiming to improve the prediction capabilities for the design of such systems, in the present study, a Nusselt number correlation able to describe the convective
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On the heat transfer deterioration during condensation of binary mixtures

Applied Physics Letters, 2019
Heat transfer processes involving binary- and multicomponent mixtures are ubiquitous in nature, particularly in several industries like the chemical and petrochemical ones. Condensation of binary mixtures inside pipes has been extensively studied during the past decades for unraveling the physical mechanisms controlling heat transfer. In particular, it
C. A. Dorao, M. Fernandino
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Deterioration of Heat Transfer at Supercritical Pressures of a Substance

Journal of Engineering Physics and Thermophysics, 2001
Results of an experimental investigation of the transition from the enhanced mode of heat transfer to a deteriorated mode at supercritical pressures of toluene are presented.
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