Results 11 to 20 of about 153,489 (223)

Critical heat flux density in diphasic thermosyphons

open access: yesMATEC Web of Conferences, 2017
The paper presents an analysis of known dependencies for determining the critical heat flux density in diphasic thermosyphons. The critical heat flux density for the created experimental model of thermosyphon were calculated on the basis of the ...
Ponomarev Konstantin O.   +2 more
doaj   +1 more source

Heat transfer deterioration mechanism for water at supercritical pressure

open access: yesInternational Journal of Thermofluids, 2020
Heat transfer deterioration (HTD) phenomena in supercritical water is one of the most thermal hydraulic critical issues for supercritical reactors. The onset of heat transfer deterioration and bouncy effect have been studied in details, however limited ...
Salah El-Din El-Morshedy   +3 more
doaj   +1 more source

Models heat exchange in the thermal power station with ultra-super-critical steam parameters [PDF]

open access: yesTehnika, 2017
Currently the world increasingly develop and build thermal power plant with supercritical steam parameters initial work. I like to plant with these parameters are characterized by a higher degree of usefulness of what I did one of the main reasons for ...
Aličić Merim M.
doaj   +1 more source

Numerical Analysis of Mechanism on Heat Transfer Deterioration of Hexamethyldisiloxane in a Vertical Upward Tube at Supercritical Pressures [PDF]

open access: yesJournal of Applied Fluid Mechanics
The working fluids at supercritical pressures will experience abnormal heat transfer compared with those in a sub-critical state. In particular, the heat transfer deterioration (HTD) can make the wall temperature increase sharply in the tube, posing a ...
J. Fu, H. Y. Liu, Y. Wang
doaj   +1 more source

Flow Boiling Heat Transfer of Grooved Copper Foam with Open Gap

open access: yesИнженерные технологии и системы, 2022
Introduction. Copper foam material has various advantages. It has been proved effective in enhanced boiling heat transfer, but also increases pump power consumption.
Donghui Zhang   +5 more
doaj   +1 more source

Study on critical heat flux density at the quasi-stationary heating of superficially boiling binary mixtures

open access: yesAdvanced Engineering Research, 2015
The heat-flow rate and temperature of the heater are measured at various liquid subcooling boiling points. An experimental plant and the obtained results on the heat energy motion in the superficially boiling binary liquid mixtures are described.
Victor Vladimirovich Kozhokaru   +1 more
doaj   +1 more source

Boiling Heat Transfer Performance of Parallel Porous Microchannels

open access: yesEnergies, 2020
Flow boiling in microporous layers has attracted a great deal of attention in the enhanced heat transfer field due to its high heat dissipation potential.
Donghui Zhang   +6 more
doaj   +1 more source

Modeling and Numerical Investigation of Transient Two-Phase Flow with Liquid Phase Change in Porous Media

open access: yesNanomaterials, 2021
Two-phase flow with phase change in microstructure or nanostructure is an important issue in many fronts and critical applications nowadays, but with a lack of comprehensive understanding of the mechanism.
Fei He, Wenjie Dong, Jianhua Wang
doaj   +1 more source

Characteristic Analysis of Boiling Heat Transfer of R32 Refrigerant and Modeling Study of Heat Exchanger

open access: yesEnergies
This study experimentally investigates the boiling heat transfer characteristics of R32 and R410A refrigerants in heat exchangers, systematically analyzing the effects of tube thickness, saturation temperature, latent heat, liquid-phase density, and ...
Bo Yu   +3 more
doaj   +1 more source

Instability Analysis of Supercritical CO2 during Transportation and Injection in Carbon Capture and Storage Systems

open access: yesEnergies, 2018
Captured CO2 is in a subcritical state, whereas CO2 deep underground is in a supercritical state because of the high geothermal heat and pressure. The properties of CO2 can change rapidly at the critical point and in the near-critical region during the ...
Il Hong Min, Seong-Gil Kang, Cheol Huh
doaj   +1 more source

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