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Keywords: Microchannel
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Proceedings Papers

Proc. ASME. IMECE2021, Volume 11: Heat Transfer and Thermal Engineering, V011T11A042, November 1–5, 2021
Paper No: IMECE2021-71615
... Fadi Alnaimat United Arab Emirates University Al Ain, UAE Mohammed Ziauddin United Arab Emirates University Al Ain, UAE ABSTRACT Heat exchangers with microchannel/mini-channel configurations have wide applications including aerospace, airconditioning, process/power industries, gas turbine cooling, etc...
Proceedings Papers

Proc. ASME. IMECE2001, Heat Transfer: Volume 3 — Fluid-Physics and Heat Transfer for Macro- and Micro-Scale Gas-Liquid and Phase-Change Flows, 243-249, November 11–16, 2001
Paper No: IMECE2001/HTD-24221
...Abstract Abstract A technique for the measurement of condensation heat transfer coefficients in microchannels is reported. The high heat transfer coefficients and low mass flow rates in microchannels make it difficult to accurately measure these coefficients. The requirements for accurate heat...
Proceedings Papers

Proc. ASME. IMECE2001, Advanced Energy Systems, 227-239, November 11–16, 2001
Paper No: IMECE2001/AES-23628
...Abstract Abstract Novel air-coupled and hydronically coupled heat pumps using microchannel components were investigated in this study. The air-coupled system uses microchannel tube, multilouver fin heat exchangers as the evaporator and condenser. In the hydronically coupled heat pump...
Proceedings Papers

Proc. ASME. IMECE2019, Volume 8: Heat Transfer and Thermal Engineering, V008T09A046, November 11–14, 2019
Paper No: IMECE2019-10045
...NEAR CRITICAL CARBON DIOXIDE CHARACTERISTICS OF HEAT TRANSFER PROCESSES IN MICROCHANNELS Anatoly Parahovnik Mostafa Asadzadeh Yoav Peles* ABSTRACT Convective heat transfer of CO2 flows near the critical condition in a 300 m hydraulic diameter microchannel was visualized and measured. Flow patterns...
Proceedings Papers

Proc. ASME. IMECE2012, Volume 7: Fluids and Heat Transfer, Parts A, B, C, and D, 2085-2091, November 9–15, 2012
Paper No: IMECE2012-88310
... Effect of dispersed low boiling point liquid on flow boiling performance of DI water in a microchannel has been investigated experimentally. Experiments were carried out in a single microchannel having hydraulic diameter 672 μm and also in a parallel microchannel having hydraulic diameter...
Proceedings Papers

Proc. ASME. IMECE2012, Volume 7: Fluids and Heat Transfer, Parts A, B, C, and D, 2971-2980, November 9–15, 2012
Paper No: IMECE2012-89707
... The present work proposes a numerical, transient modeling approach for the simulation of condensation heat transfer in a single microchannel. The model was based on the volume of fluid approach, which governed the hydrodynamics of the two-phase flow. User-defined routines were implemented...
Proceedings Papers

Proc. ASME. IMECE2012, Volume 7: Fluids and Heat Transfer, Parts A, B, C, and D, 1833-1846, November 9–15, 2012
Paper No: IMECE2012-89787
... area to volume ratio, microchannel technology has been well theoretically validated to be a very effective and potential choice for enhancing heat transfer performance. But there is a lack of research work on the mass transfer performance in micro-channels. This work investigated simultaneous mass...
Proceedings Papers

Proc. ASME. IMECE2012, Volume 9: Micro- and Nano-Systems Engineering and Packaging, Parts A and B, 1141-1153, November 9–15, 2012
Paper No: IMECE2012-89261
... Conventional microchannel heat sinks provide good heat dissipation capability but are associated with high pressure drop and corresponding pumping power. The use of a manifold system that distributes the flow into the microchannels through multiple, alternating inlet and outlet pairs...
Proceedings Papers

Proc. ASME. IMECE2012, Volume 9: Micro- and Nano-Systems Engineering and Packaging, Parts A and B, 85-92, November 9–15, 2012
Paper No: IMECE2012-89413
... cells (LSEC) or a bovine aortic endothelial cells (BAEC) as an alternative. Poly-dimethylsiloxane (PDMS) microchannels were fabricated and attached to transwell membranes that contain submicroscale pores. Cells were cultured either on one side or on both sides of the transwell membrane, and in both...
Proceedings Papers

Proc. ASME. IMECE2011, Volume 6: Fluids and Thermal Systems; Advances for Process Industries, Parts A and B, 181-188, November 11–17, 2011
Paper No: IMECE2011-62927
... as compared to that of carrier liquid. However, the flow of emulsions in capillary structures and microchannels reveals a remarkable, quite unexpected phenomenon called “dynamic blocking”, whereby the flow of emulsion through microchannel ceases in time despite the presence of the applied constant pressure...
Proceedings Papers

Proc. ASME. IMECE2011, Volume 1: Advances in Aerospace Technology; Energy Water Nexus; Globalization of Engineering; Posters, 765-770, November 11–17, 2011
Paper No: IMECE2011-63525
... since it can be applied by using microchannel and flow boiling. Also, it has much higher heat transfer coefficient than large-scale cooling system. However, boiling is not easily initiated and surface temperature often reaches high temperature even without boiling which could burn the electronic...
Proceedings Papers

Proc. ASME. IMECE2011, Volume 6: Fluids and Thermal Systems; Advances for Process Industries, Parts A and B, 527-537, November 11–17, 2011
Paper No: IMECE2011-63653
... 02 08 2012 The present paper reports a comprehensive study on the numerical simulation of Taylor flow in microchannels by the phase field method. Additionally, a comparative study was also performed against an alternative volume of fluid model based on which the phase field method...
Proceedings Papers

Proc. ASME. IMECE2011, Volume 6: Fluids and Thermal Systems; Advances for Process Industries, Parts A and B, 1309-1319, November 11–17, 2011
Paper No: IMECE2011-66279
... 02 08 2012 The present paper reports a comprehensive study on the numerical simulation of Taylor flow in microchannels by the phase field method. Additionally, a comparative study was also performed against an alternative volume of fluid model based on which the phase field method...
Proceedings Papers

Proc. ASME. IMECE2010, Volume 3: Design and Manufacturing, Parts A and B, 1037-1047, November 12–18, 2010
Paper No: IMECE2010-40985
... 01 05 2012 In this paper, an analytical modeling of microchannel design and manufacturing with excimer laser micromachining is presented for medical devices development. Micro/Nano fabrication methods have made possible the creation of extremely tiny structures and systems which cannot...
Proceedings Papers

Proc. ASME. IMECE2008, Volume 13: Nano-Manufacturing Technology; and Micro and Nano Systems, Parts A and B, 647-653, October 31–November 6, 2008
Paper No: IMECE2008-67932
... 24 08 2009 This paper presents a study of fluid flow through microchannel. Based on the work of Senta and Nnanna, [23], a trapezoidal-shaped manifold is used to ensure uniform flow distribution in the microchannel. Analysis further shows that flow uniformity among the channels largely...
Proceedings Papers

Proc. ASME. IMECE2008, Volume 8: Energy Systems: Analysis, Thermodynamics and Sustainability; Sustainable Products and Processes, 139-146, October 31–November 6, 2008
Paper No: IMECE2008-68912
... microchannels and millichannels heat sink, taking into account the Volume Fractions, Reynolds, Peclet and Prandtl numbers. The β’s parameters are estimated with nonlinear least square approach. StatGraphics® was used, considering the Gauss-Newton algorithm with Levenberg-Marquardt modifications for global...
Proceedings Papers

Proc. ASME. IMECE2007, Volume 8: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A and B, 1047-1054, November 11–15, 2007
Paper No: IMECE2007-42720
... 26 05 2009 This paper presents a study of nanofluid flow through microchannel. Its focus is on the design and optimization of microchannel assembly with emphasis on the design of manifold or jacket. The test setup consists of ninety-nine 120μm×120μm×20mm channels, nanofluid flow loop...
Proceedings Papers

Proc. ASME. IMECE2007, Volume 8: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A and B, 1063-1068, November 11–15, 2007
Paper No: IMECE2007-43021
... 26 05 2009 Flow boiling instability in parallel microchannel and the ability of artificial reentrant cavities to suppress their occurrence was experimental studied. Experiments were conducted using two types of 226 μm hydraulic diameter parallel microchannel devices: microchannel...
Proceedings Papers

Proc. ASME. IMECE2007, Volume 5: Electronics and Photonics, 87-94, November 11–15, 2007
Paper No: IMECE2007-42971
... 26 05 2009 The objective of this study is to analyze the single-phase fluid flow and heat transfer through a microchannel electronics cooler with a hydraulic diameter of about 300 microns. For this purpose, commercial computational fluid dynamics software was used to first characterize...
Proceedings Papers

Proc. ASME. IMECE2007, Volume 11: Micro and Nano Systems, Parts A and B, 437-446, November 11–15, 2007
Paper No: IMECE2007-42458
... 26 05 2009 Two-phase heat transfer in microchannels can support very high heat fluxes for use in high-performance electronics-cooling applications. However, the effects of microchannel cross-sectional dimensions on the heat transfer coefficient and pressure drop have not been...