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

