Results 31 to 40 of about 5,111 (253)
Flow Boiling in Minichannels [PDF]
, 2006 The use ofmini-channel heat exchangers (hydraulic diameter about 1 mm) in compact heat exchangers improves heat transfer coefficients, and thermal efficiency while requiring a lower fluid mass. They are widely used in condensers for automobile air-conditioning and are now being used in evaporators, as well as in other applications such as domestic air ...
André Bontemps +2 more
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Single phase heat transfer in minichannels [PDF]
EPJ 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 transfer coefficient. Possible reasons for the difference are discussed.
Hejčík, Jiří, Jícha, Miroslav
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Heat transfer and pressure drop measurement in minichannels [PDF]
EPJ 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.
Hejčík, Jiří, Jícha, Miroslav
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MATEC Web of Conferences, 2018 The method of solving the inverse heat conduction problem, by means of the FEM with Trefftz-type basis functions, during flow boiling in a minichannel was shown.
Piasecka Magdalena +2 more
doaj +1 more source
Flow characteristics and heat transfer performance in a Y-Fractal mini/microchannel heat sink [PDF]
, 2019 This article presents a combined experimental and computational study to investigate the flow and heat transfer in a Y-fractal microchannel. Experimental apparatus was newly built to investigate the effect of three different control factors, i.e., fluid ...
Deng, Zhanfeng +8 more
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EPJ Web of Conferences, 2012 The aim of this paper is to determine the boiling heat transfer coefficient for the cooling liquid flow in a rectangular minichannel with asymmetric heating. The main part of the test section is made up of a vertical minichannel of 1.0 mm depth.
Maciejewska Beata, Piasecka Magdalena
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Frontiers in Energy Research, 2021 Two-phase flow regimes were experimentally investigated during the entire condensation process of refrigerant R152a in a circular glass minichannel. The inner and outer diameters of the test minichannel were 0.75 and 1.50 mm.
Na Liu, Qian Zhao, Zhixiang Lan
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Impact of selected parameters on the development of boiling and flow resistance in the minichannel
EPJ Web of Conferences, 2015 The paper presents results of flow boiling in a rectangular minichannel 1 mm deep, 40 mm wide and 360 mm long. The heating element for FC-72 flowing in the minichannel was the thin alloy foil designated as Haynes-230.
Piasecka Magdalena, Ziętala Kinga
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Experimental research of hydrodynamic characteristics during boiling of refrigerants in minichannels using true parameters of phases [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2019 This paper is devoted to the development of an integrated method for calculating heat hydrodynamic characteristics of two-phase flows taking into account the specificity of the flow in minichannels. The proposed approach is based on the methodology for
A. A. Malyshev +3 more
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EPJ Web of Conferences, 2013 The paper focuses on the numerical solution to two-dimensional temperature field of boiling liquid flowing along a vertical, asymmetrically heated minichannel with a rectangular cross-section.
Hożejowski L. +2 more
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