Results 21 to 30 of about 501,561 (311)

Optimization on heat-transfer coefficient of plate heat exchanger using MWCNT-TiO2 nanofluid by response surface methodology

open access: yesMaterials Research Express, 2020
In this present study, MWCNT-TiO _2 hybrid nanocomposite synthesized by solvothermal synthesis method with TiCl _4 as a precursor. Then the hybrid nanocomposite based nanofluid produced using base fluid water/Ethylene-glycol (50:50).
Abdullah Saleh Alqahtani   +2 more
doaj   +1 more source

Solution of heat and mass transfer problems with non-linear coefficients

open access: yesTyumen State University Herald. Physical and Mathematical Modeling. Oil, Gas, Energy, 2019
Equations, which have nonlinear nonmonotonic dependence of one of the coefficients on an unknown function, can describe processes of heat and mass transfer. As a rule, existing approximate methods do not provide solutions with acceptable accuracy. Numerical methods do not involve obtaining an analytical expression for the unknown function and require ...
Boris G. Aksenov   +2 more
openaire   +1 more source

Investigation of heat transfer properties of granular activated carbon with R723 for adsorption refrigeration and heat pump [PDF]

open access: yes, 2019
This paper investigates the heat transfer coefficient of the wall to packed carbon contact (h) and the thermal conductivity of the packed bed (λ) by using parameters estimation method.
Khaliji Oskouei, Mohammadhasan   +1 more
core   +1 more source

Study and analysis of heat transfer performance of colored steel sandwich plate

open access: yesResults in Physics, 2019
The experimental research and theoretical analysis of the thermal performance of 4 kinds of colored steel polystyrene sandwich plates and 4 kinds of colored steel rock wool sandwich plates were carried out in this thesis, and the thickness of colored ...
Jianhua Li, Zhongyi Zhou, Wenjing Chen
doaj   +1 more source

Enhancement Effect of a Diamond Network on the Flow Boiling Heat Transfer Characteristics of a Diamond/Cu Heat Sink

open access: yesEnergies, 2023
The use of a micro heat sink is an effective means of solving the problem of high-power chip heat dissipation. Diamond/Cu composites exhibit high thermal conductivity and a linear thermal expansion coefficient that is compatible with semiconductor ...
Nan Wu   +4 more
doaj   +1 more source

Unsteady Wake Over a Linear Turbine Blade Cascade With Air and CO2 Film Injection: Part I—Effect on Heat Transfer Coefficients [PDF]

open access: yesJournal of Turbomachinery, 1993
The effect of unsteady wake flow and air (D.R. = 1.0) or CO2 (D.R. = 1.52) film injection on blade heat transfer coefficients was experimentally determined. A spoked wheel-type wake generator produced the unsteady wake. Experiments were performed on a five-airfoil linear cascade in a low-speed wind tunnel at the chord Reynolds number of 3 × 105 for the
Shichuan Ou   +3 more
openaire   +1 more source

Linear and weakly nonlinear magnetoconvection in a porous medium with a thermal nonequilibrium model [PDF]

open access: yes, 2016
Two-dimensional magnetoconvection in a layer of Brinkman porous medium with local thermal nonequilibrium (LTNE) model is investigated by performing both linear and weakly nonlinear stability analyses.
Mamatha, A.L.   +2 more
core   +2 more sources

Implicit Equation for Photovoltaic Module Temperature and Efficiency via Heat Transfer Computational Model

open access: yesThermo, 2022
This paper evaluates the photovoltaic (PV) module operating temperature’s relation to efficiency via a numerical heat transfer model. The literature reports that higher PV module operating temperatures impact PV module efficiency.
R. Hassanian   +4 more
semanticscholar   +1 more source

Investigation of Transient Nucleate Boiling Processes and Their Practical Use in Heat Treating Industry [PDF]

open access: yes, 2017
In the paper transient nucleate boiling process is widely discussed. It's unknown previously and investigated by author characteristics create a basis for designing of new technologies which allow receiving super strengthened materials.
Kobasko, N. (Nikolai)
core   +2 more sources

Prediction of Thermo-Physical Properties of TiO2-Al2O3/Water Nanoparticles by Using Artificial Neural Network [PDF]

open access: yes, 2020
In this paper, an artificial neural network is implemented for the sake of predicting the thermal conductivity ratio of TiO2-Al2O3/water nanofluid. TiO2-Al2O3/water in the role of an innovative type of nanofluid was synthesized by the sol–gel method. The
Ahmadi, Mohammad Hossein   +6 more
core   +2 more sources

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