Results 1 to 10 of about 3,522 (209)

Flow Structure Investigations during Novec Refrigerant Condensation in Minichannels. [PDF]

open access: yesMaterials (Basel), 2021
This article presents the results of flow visualization studies of Novec refrigerants during condensation in minichannels. Experimental investigation of two-phase flow regimes was conducted in minichannels with internal diameter dh = 2.5, 2.0, 1.2, and 0.5 mm. Images of the two-phase flow structures were analyzed by using the MATLAB algorithm.
Sikora M.
europepmc   +4 more sources

Single phase heat transfer in minichannels [PDF]

open access: yesEPJ Web of Conferences, 2014
The paper deals with the possibilities of measurement and evaluation of the heat transfer coefficient in circular minichannels. Evaluation procedure is demonstrated on real data and the results obtained are compared with the expected values of the heat ...
Hejcik Jiri, Jicha Miroslav
doaj   +3 more sources

Configuration and Optimization of a Minichannel Using Water–Alumina Nanofluid by Non-Dominated Sorting Genetic Algorithm and Response Surface Method [PDF]

open access: yesNanomaterials, 2020
Nanofluids in minichannels with various configurations are applied as cooling and heating fluids. Therefore, it is essential to have an optimal design of minichannels.
Ali Akbar Ahmadi   +4 more
doaj   +2 more sources

Heat transfer and pressure drop measurement in minichannels [PDF]

open access: yesEPJ Web of Conferences, 2012
This paper describes the suitable techniques for the heat transfer and pressure drop measurement in smooth tubular channels with the internal diameter less than 5 mm. The first experimental data are mentioned and their evaluation is presented.
Jícha Miroslav, Hejčík Jiří
doaj   +3 more sources

Desorption of aqueous salt solution in minichannels [PDF]

open access: yesMATEC Web of Conferences, 2015
This work is devoted the research for aqueous solution desorption of salt LiBr in minichannels with different wall thicknesses. There is a change in time of the physical properties of the solution and a change of equilibrium conditions and there is a ...
Misyura S. Y., Morozov V. S.
doaj   +2 more sources

Numerical simulation of flow in triangular minichannel [PDF]

open access: yesEPJ Web of Conferences, 2019
Minichannel cooling systems show great potential for small scale electronics. In this paper we analytically and numerically investigate flow with evaporation in open triangular minichannels without upper gas flow.
Sibiryakov Nikolay   +2 more
doaj   +2 more sources

Boiling local heat transfer enhancement in minichannels using nanofluids. [PDF]

open access: yesNanoscale Res Lett, 2013
AbstractThis paper reports an experimental study on nanofluid convective boiling heat transfer in parallel rectangular minichannels of 800 μm hydraulic diameter. Experiments are conducted with pure water and silver nanoparticles suspended in water base fluid.
Chehade AA   +4 more
europepmc   +5 more sources

Simcenter STAR-CCM+ software for CFD and heat transfer calculations in minichannels [PDF]

open access: yesEPJ Web of Conferences, 2022
The paper focuses on CFD modelling and numerical simulation of heat transfer during fluid flow in minichannels. The data from the experiment were adopted into Simcenter Star-CCM+ software.
Dadas Norbert   +2 more
doaj   +1 more source

Pool boiling of Novec-649 on minichannels filled with copper foam [PDF]

open access: yesEPJ Web of Conferences, 2022
The article describes the experimental investigation of pool boiling heat transfer on minichannels with filling in the form of porous structure (copper foam).
Pastuszko Robert   +2 more
doaj   +1 more source

Conception of minichannel cooling for a PVT heat exchanger [PDF]

open access: yesEPJ Web of Conferences, 2022
In the paper, a new construction of a compact plate heat exchanger dedicated to PVT cooling was numerically tested. The efficiency of photovoltaic panels decreases as their temperature increases, but cooling improves efficiency.
Strąk Dariusz, Piasecka Magdalena
doaj   +1 more source

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