Results 11 to 20 of about 87,592 (312)

Research on heat transfer coefficient of supercritical water based on factorial and correspondence analysis

open access: yesNuclear Engineering and Technology, 2020
The study of heat transfer coefficient of supercritical water plays an important role in improving the heat transfer efficiency of the reactor. Taking the supercritical natural circulation experimental bench as the research object, the effects of power ...
Feng Xiang   +4 more
doaj   +1 more source

The Experimental Study of Nanoparticles Effect on Thermal Efficiency of Double Pipe Heat Exchangers in Turbulent Flow [PDF]

open access: yesTransport Phenomena in Nano and Micro Scales, 2014
In this work, the characteristics of flow and heat transfer of a fluid containing nano particles of aluminum oxide with the water volume fraction (0.1-0.2-0.3)(V/V) percent of the reports.
R. Aghayeri   +3 more
doaj   +1 more source

Convective Heat Transfer Coefficients in the Circulation [PDF]

open access: yesJournal of Biomechanical Engineering, 1991
Convective heat transfer in the vessels of the circulatory system is investigated numerically. In the modeling, account is taken of the non-Newtonian rheological properties of blood and the presence of a cell-depleted plasma layer at the vessel wall. The latter is found to produce a remarkable enhancement of the heat transfer rate in the small vessels,
BAROZZI, Giovanni Sebastiano   +1 more
openaire   +4 more sources

Comparative Numerical Study on Global Heat Transfer Process in Micro-Channel Gas Coolers with Different Structures [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
A numerical simulation of global heat transfer process in three types of micro-channel heat exchangers was investigated in this paper: spiral double-pipe micro-channel heat exchanger (DPHE), cross-plate micro-channel heat exchanger (CPHE), and shell and ...
D. Yang, N. Wang, J. Xie, J. Wang
doaj   +1 more source

Experimental Research on the Flow and Heat Transfer Characteristics of Subcritical and Supercritical Water in the Vertical Upward Smooth and Rifled Tubes

open access: yesEnergies, 2022
Experiments were conducted to investigate the heat transfer and flow characteristics of the vertical upward smooth and rifled tubes from subcritical to supercritical pressure. The distributions of wall temperature and heat transfer coefficient (HTC) were
Xiaocheng Du   +5 more
doaj   +1 more source

Experimental Investigation of Two-Phase Flow Boiling Heat Transfer Coefficient and Pressure Drop of R448A inside Multiport Mini-Channel Tube

open access: yesEnergies, 2022
Regulations and restrictions against high global warming potential (GWP) refrigerants have been introduced to encourage the adoption of environmentally friendly refrigerants and mitigate the environmental impact of the HVAC industry.
Hieu Ngoc Hoang   +2 more
doaj   +1 more source

Experimental studies on nucleate pool boiling heat transfer to ethanol/MEG/DEG ternary mixture as a new coolant [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2012
In this paper, nucleate pool boiling heat transfer coefficient of ternary mixtures of ethanol, monoethylene glycol (MEG) and diethylene glycol (DEG) as a new coolant with higher heat transfer coefficient has been investigated.
Sarafraz M.M.   +2 more
doaj   +1 more source

Tyre–Road Heat Transfer Coefficient Equation Proposal

open access: yesApplied Sciences, 2023
Tyres are one of the most important elements of a vehicle because they are the link to the road and have a huge impact on traffic-related pollution. Knowing their behaviour, thus being able to use them at their best and reducing their wear rate, is one ...
Paolo Cattani   +2 more
doaj   +1 more source

Sensitivity of the Heat-Transfer Coefficient Calculation [PDF]

open access: yesMaterials Performance and Characterization, 2014
AbstractThe purpose of the Liščić/Petrofer probe is to determine the cooling intensity during liquid quenching in laboratory and workshop environments. The surface heat-transfer coefficient is calculated by the one-dimensional finite-volume method from the smoothed temperature curve, measured at a near-surface point in the probe.
openaire   +3 more sources

Heat Transfer Coefficients in Concentric Annuli [PDF]

open access: yesJournal of Heat Transfer, 2002
The geometric shape of a passage’s cross-section has an effect on its convective heat transfer capabilities. For concentric annuli, the diameter ratio of the annular space plays an important role. The purpose of this investigation was to find a correlation that will accurately predict heat transfer coefficients at the inner wall of smooth concentric ...
Jaco Dirker, Joshua P. Meyer
openaire   +3 more sources

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