Results 31 to 40 of about 89,348 (163)

Experimental Study for Heat Transfer Characteristics of Vertical Rectangular Narrow Channels

open access: yesZhileng xuebao, 2014
Ionized water was used to investigate the heat transfer characteristics of vertical rectangular narrow channels experimentally. The distribution characteristics of wall-temperature and the local heat transfer coefficient were analyzed by using single ...
Liu Xiaode   +3 more
doaj  

Heat transfer coefficient as parameter describing ability of insulating liquid to heat transfer

open access: yesE3S Web of Conferences, 2017
The paper presents the results of the measurements of heat transfer coefficient of insulating liquids used in transformers. The coefficient describes an ability of the liquid to heat transport.
Nadolny Zbigniew   +2 more
doaj   +1 more source

A new model of overall heat transfer coefficient of hot wax oil pipeline based on dimensionless experimental analysis

open access: yesCase Studies in Thermal Engineering, 2020
Aimed at biggish prediction error of the overall heat transfer coefficient caused by running parameters fluctuations, analyze the correlations between various elements including outlet oil temperature, oil physical properties, flow rate, environmental ...
Gang Zhou   +3 more
doaj   +1 more source

Heat Transfer Characteristics during Condensation of R134a inside Micro-fin Tubes

open access: yesZhileng xuebao, 2018
Experimental study of R134aduring condensation heat transfer inside the micro-fin tube for the condensation temperatures of 35 ℃、40 ℃ and 45 ℃ was made.
Li Qingpu   +4 more
doaj  

The effect of hydrodynamic flow unsteadiness on heat transfer enhancement in a channel with square ribs

open access: yesMATEC Web of Conferences, 2017
The heat transfer coefficient has been measured in the channel with square ribs for the case of periodic flow rate variation. New technique for heat transfer coefficient measurements has been applied in the study.
Dushin Nikolay   +4 more
doaj   +1 more source

Influence on Heat Transfer Coefficient of Heat Exchanger by Velocity and Heat Transfer Temperature Difference

open access: yesJournal of Harbin University of Science and Technology, 2017
Aimed to insufficient heat transfer of heat exchanger, research the influence on the heat transfer coefficient impacted by velocity and heat transfer temperature difference of tube heat exchanger.
WANG Fang   +3 more
doaj   +1 more source

Effects of carbon nanotube concentration on heat transfer characteristics in turbulent mixtures

open access: yesInternational Journal of Thermofluids
This study presents numerical simulations modeling convective heat transfer in turbulent flows of carbon nanotube (CNT) mixtures suspended in water. The RNG k-ε turbulence model is employed and simulations are performed using the FLUENT software.
Javad Zareei   +4 more
doaj   +1 more source

A New Statistical-Based Correlation for the Rib Fin Effects on the Overall Heat Transfer Coefficient in a Rib-Roughened Cooling Channel

open access: yesInternational Journal of Rotating Machinery, 2007
Heat transfer coefficients in the cooling cavities of turbine airfoils are greatly enhanced by the presence of discrete ribs on the cavity walls. These ribs introduce two heat transfer enhancing features: a significant increase in heat transfer
M. E. Taslim, V. Nezym
doaj   +1 more source

Calculation of heat transfer coefficients

open access: yesMetalurgija, 2019
In forced-convection furnaces for reheating Al-alloys, convective heat transfer mechanism dominates. Al-body temperature prediction model uses measured furnace temperature as boundary condition. To calibrate such model, a convective heat transfer coefficient h is to be determined.
Vode, F.   +4 more
openaire   +2 more sources

Calculation of Heat Transfer Coefficient of Heavy Rail Steel in Quenching Process Based on Finite Element Method

open access: yesTeshugang, 2016
A method to calculate the heat transfer coefficient is proposed by using finite element software combined with experimental calculation that is based on measured temperature curves, carrying out the nonlinear coupling on various factors which have ...
陈林, 王慧军, 陈昆宇, 刘志敏
doaj  

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