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Dissertations / Theses on the topic 'Microchannel'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Price, Gareth James. "Microchannel plates in astronomy." Thesis, University of Leicester, 2001. http://hdl.handle.net/2381/8638.

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This thesis describes both round-pore microchannel plates (MCPs) used in energetic pho¬ton and particle detectors and their square-pore offspring, micropore optics (MPOs), used to focus x-rays. A Monte Carlo electron raytracing software package is described that is used to predict the energy and angular distribution of electrons (EDOE and ADOE) in a microchannel electron multiplier's output charge cloud, including saturated operation. The model is shown to agree with experimental evidence. The addition of a micromachined electrostatic lens to the end of a microchannel is modelled and found to

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2

Checketts, Gus Thomas. "Microchannel Radiator: an Investigation of Microchannel Technology with Applications in Automotive Radiator Heat Exchangers." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc700005/.

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Microchannels have been used in electronics cooling and in air conditioning applications as condensers. Little study has been made in the application of microchannels in automotive heat exchangers, particularly the radiator. The presented research captures the need for the design improvement of radiator heat exchangers in heavy-duty vehicles in order to reduce aerodynamic drag and improve fuel economy. A method for analyzing an existing radiator is set forth including the needed parameters for effective comparisons of alternative designs. An investigation of microchannels was presented and it

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3

Benoit, Vincent. "Flow-through microchannel DNA chips." Thesis, University of Glasgow, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368731.

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4

Martin, Adrian Peter. "Exploitation of microchannel plate optics." Thesis, University of Leicester, 2000. http://hdl.handle.net/2381/30635.

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This thesis contains work on microchannel plate (MCP) optics as used for X-ray focusing, and can be split into two sections; research and applications.;Research into improving the reflectivity of MCPs is presented which includes results obtained at the Daresbury Synchrotron, and electron microscope analysis. Different treatments performed on Nova Scientific channel plates were shown only to make a improvement to reflectivity in the case of annealing. Evidence for a 300A layer of silica on the surfaces of the microchannels, a result of the acid etching process, was discovered.;The method of ben

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5

Siu, Billy Chin Pang. "Condensation heat transfer in microchannel /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?MECH%202004%20SIU.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2004.<br>Includes bibliographical references (leaves 43-46). Also available in electronic version. Access restricted to campus users.

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6

Mehrotra, Rajat. "Monodispersed polygonal water droplets in microchannel." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2726.

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7

Burg, Thomas P. (Thomas Peter). "Suspended microchannel resonators for biomolecular detection." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/34471.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2005.<br>Includes bibliographical references (leaves 115-124).<br>Microfabricated transducers enable the label-free detection of biological molecules in nanoliter sized samples. Integrating microfluidic detection and sample-preparation can greatly leverage experimental efforts in systems biology and pharmaceutical research by increasing analysis throughput while dramatically reducing reagent cost. Microfabricated resonant mass sensors are among the most sensitive devices for chemical d

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8

Parak, Muhammad. "Development of a microchannel reactor model." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/11615.

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Includes abstract.<br>Includes bibliographical references (p. 151-157).<br>The development and future wide-spread use of hydrogen fuel cells is inhibited by problems associated with hydrogen storage. A possible alternative is to store and then reform hydrocarbons to yield hydrogen in an on-board fuel processing system. Microchannel reactors have reduced mass and heat transfer limitations and are able to exploit fast intrinsic kinetics. Also, their high surface area to volume ratio reduces their size for a constant throughput, increasing their potential for miniaturised deployment. Current micr

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9

Fogg, David W. "Bubble dynamics in microchannel flow boiling /." May be available electronically:, 2007. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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10

Dagle, Robert Alexander. "Fuel processing catalysis for microchannel applications." Online access for everyone, 2005. http://www.dissertations.wsu.edu/Thesis/Spring2005/r%5Fdagle%5F050305.pdf.

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11

Pettersen, Jostein. "Flow vaporization of CO2 in Microchannel Tubes." Doctoral thesis, Norwegian University of Science and Technology, Faculty of Engineering Science and Technology, 2002. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-87.

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12

Lee, Hyun Ho. "A thin film transistor driven microchannel device." Texas A&M University, 2004. http://hdl.handle.net/1969.1/1439.

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Novel electrophoresis devices for protein and DNA separation and identification have been presented and studied. The new device utilizes a contact resistance change detection method to identify protein and DNA in situ. The devices were prepared with a microelectronic micromechanical system (MEMS) fabrication method. Three model proteins and six DNA fragments were separated by polyacrylamide gel microchannel electrophoresis and surface electrophoresis. The detection of the proteins or DNA fragments was accomplished using the contact resistance increase of the detection electrode due to adsorpti

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13

Gao, Yanfeng. "Inertial migration of particles in microchannel flows." Thesis, Toulouse, INSA, 2017. http://www.theses.fr/2017ISAT0010/document.

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Cette thèse a pour objectif de mieux comprendre les mécanismes physiques qui contrôlent les trajectoires de particules anisotropes dans des écoulements confinés, afin d’en améliorer la prédiction. Nous avons dans un premier temps développé des outils expérimentaux basés sur la microscopie et le traitement d’images afin d’analyser les positions de particules en écoulement confiné dans des microcanaux de section carrée. Ces outils ont ensuite permis l’obtention de résultats originaux sur la migration latérale de particules sphériques dans des écoulements faiblement inertiels. Nous avons montré e

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14

Carpenter, James David. "Microchannel plates in astronomy and planetary science." Thesis, University of Leicester, 2006. http://hdl.handle.net/2381/7983.

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Since their declassification in the late 1960s microchannel plates (MCPs) have been used as detectors for X-ray and extreme ultraviolet (EUV) astronomy, offering a unique sensitivity in the EUV waveband. The post 1990 era, however, has seen a universal, and unexplained, reduction in EUV quantum efficiency (QE). An analysis of microchannel plate glass composition has recorded variations in along channel composition for the first time. These observations may provide insight into the lost QE problem and present a way forward for the development of future EUV missions. Although originally develope

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15

Green, James Alexander. "Mixing in surface tension driven microchannel flows." Thesis, University of Hertfordshire, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.440160.

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16

Chen, Siyu S. M. Massachusetts Institute of Technology. "Bubble dynamics on structured surface in microchannel." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/81595.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 69-70).<br>Surface enhancement is a potential way to improve the performance of flow boiling in microchannels, which is considered to be one of the most promising cooling methods to solve thermal management challenges faced by future semiconductor products. Considerable research has been done on examining the functions of engineered surfaces. However, the mechanism of how these surfaces improve the flow boiling performa

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17

Phillips, Richard J. "Forced-convection, liquid-cooled, microchannel heat sinks." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/14921.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1987.<br>MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING<br>Bibliography: v.2, leaves 286-291.<br>by Richard J. Phillips.<br>M.S.

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18

Talebi, Mohammadmahdi [Verfasser]. "Local Sensing in Microchannel Boiling / Mohammadmahdi Talebi." München : Verlag Dr. Hut, 2021. http://d-nb.info/1240540027/34.

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19

Kulkarni, Amit S. "Effects of surface roughness in microchannel flows." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0003400.

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20

Kuravi, Sarada. "Numerical Study of Encapsulated Phase Change Material (EPCM) Slurry Flow in Microchannels." Doctoral diss., University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4093.

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Heat transfer and flow characteristics of phase change material slurry flow in microchannels with constant heat flux at the base were investigated. The phase change process was included in the energy equation using the effective specific heat method. A parametric study was conducted numerically by varying the base fluid type, particle concentration, particle size, channel dimensions, inlet temperature, base heat flux and melting range of PCM. The particle distribution inside the microchannels was simulated using the diffusive flux model and its effect on the overall thermal performance of micr

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21

Cetin, Murat. "Design And Experimental Investigation Of Microchannel Heat Exchanger." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611856/index.pdf.

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Due to the high performance of electronic components, the heat generation is increasing dramatically. Heat dissipation becomes a significant issue in efficiency promotion and stable operation. Microchannels are of current interest for use in heat exchangers where very high heat transfer performance is desired. Microchannels provide high heat transfer coefficients because of their small hydraulic diameters. In this study, the design and experimental investigation of fluid flow and heat transfer in a microchannel heat exchanger is conducted. Water and air are used as the working fluids and flowe

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22

Ellob, Mohamed. "Process intensification : hydrocarbon cracking using a microchannel reactor." Thesis, University of Newcastle Upon Tyne, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.500964.

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Olefins (Ethylene and Propylene) are the most important products of the petrochemical industry, because of their wide range of applications. The global demand tor ethylene and propylene is expected to increase over tne next live years and production capacity must also increase to Keep up witti tins demand growth. There are several industrial processes for ethylene and propylene production; the most widely used process is the steam cracking process in which the hydrocarbon ieed is thermally-cracked to produce olefins. Coke is an undesirable by-product because it deposits on the internal walls o

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23

Davies, Colin John Stephen. "MRI studies of complex fluids and microchannel flows." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.598355.

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This thesis considers the use of NMR (Nuclear Magnetic Resonance) in investigating both the formulation, using microchannels, and characterisation of complex fluids using NMR techniques. Multiphase microchannel flows have many applications and understanding the hydrodynamics and mass transfer is essential for developing such systems. Time-averaged velocity images of the parallel flow of PDMS (polydimethylsiloxane) and water in a 500 μm x 250 μm microchannel were compared with an analytical solution and simulations. This was extended into imaging multiphase flows in a smaller (250 μm x 100 μm)

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24

Lackritz, Neal M. "MERLIN : a multiprocessor design for a MicroChannel architecture." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/14287.

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25

Son, Sungmin. "Suspended microchannel resonators for ultralow volume universal detection." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/44867.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008.<br>Includes bibliographical references (leaves 32-33).<br>Universal detectors that maintain high sensitivity as the detection volume is reduced to the sub-nanoliter scale can enhance the utility of miniaturized total analysis systems ([mu]-TAS). Here the unique scaling properties of the suspended microchannel resonator (SMR) are exploited to show universal detection in a 10 pL analysis volume with a density detection limit of ~1 ([mu]g/cm³ (10 Hz bandwidth) and a linear dynamic range of six decades. An

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26

Chivengwa, Tapiwa. "Microchannel flow fields for polymer electrolyte fuel cells." Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/13674.

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Fuel cell technology represents an efficient and relatively quiet way of generating electricity. Among the various types of fuel cells, the polymer electrolyte fuel cell (PEFC) is the leading candidate for portable, automotive and more recently stationary applications. One of the key challenges affecting both the performance and durability of low temperature PEFCs is water management. Various water management strategies in PEFCs have been employed to date ranging from manipulation of operating conditions, fuel cell component design and flow field design to name a few. The optimisation of the f

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27

Lee, Man. "Forced convection heat transfer in integrated microchannel heat sinks /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?MECH%202006%20LEE.

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28

Turkakar, Goker. "Numerical Simulation And Analytical Optimization Of Microchannel Heat Sinks." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612377/index.pdf.

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This study has two main objectives: The performance evaluation of existing microchannel heat sinks using a CFD model, and the dimensional optimization of various heat sinks by minimizing the total thermal resistance. For the analyses, the geometric modeling is performed using the software GAMBIT while the thermal analysis is performed with FLUENT. The developed model compares very well with those available in the literature. Eight different metal-polymer microchannel heat sinks are analyzed using the model to find out how much heat could be provided to the systems while keeping the substrate t

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29

Ulu, Ayse Gozde. "Experimental Investigation Of Uninterrupted And Interrupted Microchannel Heat Sinks." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614227/index.pdf.

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Experimental measurements are conducted on uninterrupted and interrupted aluminum microchannel heat sinks of 300, 500, 600 and 900 &mu<br>m channel widths. Two different versions of interrupted channels are tested<br>with single interruption and with 7 interruptions. Distilled water is used as the working fluid and tests are conducted at volumetric flow rates in a range of 0.5-1.1 lpm. Thermoelectric foils are used to supply uniformly distributed heat load to the heat sinks such that for all the tests the heat removed by water is kept constant at 40 W. Pressure drop and temperature increase ar

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30

Schindhelm, Eric R., J. C. Green, Oswald H. W. Siegmund, et al. "Microchannel plate detector technology potential for LUVOIR and HabEx." SPIE-INT SOC OPTICAL ENGINEERING, 2017. http://hdl.handle.net/10150/626502.

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Microchannel plate (MCP) detectors have been the detector of choice for ultraviolet (UV) instruments onboard many NASA missions. These detectors have many advantages, including high spatial resolution (<20 mu m), photon counting, radiation hardness, large formats (up to 20 cm), and ability for curved focal plane matching. Novel borosilicate glass MCPs with atomic layer deposition combine extremely low backgrounds, high strength, and tunable secondary electron yield. GaN and combinations of bialkali/alkali halide photocathodes show promise for broadband, higher quantum efficiency. Cross-strip a

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31

Bennett, Christopher James. "Solitary and transitional waves in two-layer microchannel flows." Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/5922/.

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The understanding of wave dynamics in interfacial microchannel flows is important for many technological applications in the micro-device industry. Here, a theoretical and numerical study is undertaken in order to understand the propagation of interfacial waves in a two-layer flow. The flow is considered to be driven by, in separate cases, the force of gravity and a pressure gradient. The results may provide steps towards more efficiently designed microfluidic products, and a better understanding of experimentally observed waves.

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32

Stockslager, Max A. "Measuring single-cell density using serial suspended microchannel resonators." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111934.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 42-43).<br>Cells adjust their composition during important physiological processes, including cell cycle progression, apoptosis, and disease. Due to differences in the densities of water and the various macromolecules which compose cells, changes in cellular composition are reflected by changes in cell density. Previously, methods have been described for measuring density at the single-cell level using suspended

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33

Von, Muhlen Marcio Goldani. "Label-free buoyant mass assays with suspended microchannel resonators." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62389.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Biological Engineering, 2010.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 105-112).<br>Improved methods are needed for routine, inexpensive monitoring of biomarkers that could facilitate earlier detection and characterization of complex diseases like cancer. Development of new assay formats based on microfluidic, label-free platforms enable radical reductions in assay complexity and reagent requirements with the potential for such applications. Suspended microchannel resonators (SMRs) are h

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34

Alexander, Brentan R. "Design of a microbreather for two-phase microchannel devices." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/44919.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 50-52).<br>Multiphase flows in microchannels are encountered in a variety of microfluidic applications. Two-phase microchannel heat sinks leverage the latent heat of vaporization to offer an efficient method of dissipating large heat fluxes in a compact device. In microscale methanol-based fuel cells, the chemica

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35

Zandi, Matthew A. "Single Position Focusing of Cells in a Microchannel System." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1428066046.

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36

Truter, Lara. "Development of a zeolite washcoating technique for microchannel reactors." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/10855.

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Microreactor technology is becoming an increasingly active research field in terms of chemical reaction engineering and process intensification. An important feature of microreactor technology is the requirement of a catalyst layer.

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37

Skog, Torkel. "CuPGS Laminate Core for a Matrix Microchannel Heat Exchanger." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-76914.

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Cryocooling is a continuously developing field of engineering, applied in the fieldsof aerospace, military, and medical sciences among others. There is a demand forsmaller and more efficient cryocoolers for spaceborne low-light observation missions,with many custom cooling systems having completed successful missions. The Stir-ling cycle is the most prevalent refrigeration technique used for space applications,with the pulse-tube, Joule-Thomson or reverse Brayton cycles being used in somespecial cases.A matrix heat exchanger is designed with 3D-printed 17-4 PH stainless steel end capsstreamlin

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38

Shiao, Shin-Duan, and 蕭心端. "Experimental Study of Microchannel Geometry on the Microchannel Heat Sink Performance Enhancement." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/77817152086764854254.

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碩士<br>國立中興大學<br>機械工程學系所<br>94<br>In this study，performances of two types of microscale heat sinks based on the modifications from the conventional parallel channel heat sink (PCHS) are studied experimentally。By referring the walls that separating the channels in PCHS as the plate fins，the first type of modified heat sinks involves placing obstacles alternatively on the plate fins. As a result，the original parallel channels in PCHS become winded。This type of heat sink is referred to as the obstructive channel heat sink (OCHS)。It is intended to enhance the heat transfer coefficient by the flow d

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39

Huang, Yu Hsiang, and 黃友相. "Laminar Heat Transfer in Microchannel." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/33228770672319143894.

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40

Li, Chi-hung, and 李奇翃. "Biomolecular Adsorption in the Microchannel." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/63123549499748252059.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>102<br>The protein adsorption is a critical factor in influencing the performance of a biochip which is used for disease detection. In this study, numerical simulation was used to estimate the protein adsorption rate in terms of the flowing velocity, design of the inlet, the length of the microchannel. To validate the simulation results, the microfluidic devise was fabricated with a micromilling machine and the PDMS casting technique. Then the microchannel was sealed with another piece of glass with the surface plasma treatment and used for experiments. Multi

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41

Yen, Hung-Yu, and 顏鴻宇. "Capillary Phenomena in a Microchannel." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/76515072230750919342.

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碩士<br>國立臺灣大學<br>化學工程學研究所<br>101<br>This work investigate capillary phenomenon in different types of microchannels. Capillary rise can be described by Jurin’s Law under specific scale and the results are consistent with Surface Evolver simulation. However, capillary rise can also be studied via the energy minimization method, thus the capillary rise in the stepped tube and in composite tube are examined to model the water transportation in trees. In the process of increasing the tube height, liquid level increases with the tube height. The highest liquid level is determined by the radius of

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Tu, Kuan-Hsu, and 凃冠旭. "Condensation Heat Transfer Enhancementin Microchannel." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/61905943294136803719.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>101<br>The microchannel evaporator with two-phase heat transfer achieves a high heat transfer coefficient, and low working fluid demands; therefore, is considered to have high potential. Thus, the use of microchannel condenser that uses two-phase heat transfer is seen as a cooling component with very high potential. By making it a porous structure that creates a 3D porous network, resulting in advantages such as large evaporation area, high capillary force, and high permeability, the heat transfer performance of the microchannel condenser is expected to increase sig

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Chung, Kun-Zhi, and 鍾昆志. "Decomposition of hydrogen iodide in microchannel." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/16334133895192271472.

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44

Lin, Hung-chun, and 林鴻鈞. "Electroosmotic Flows in a Square Microchannel." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/34202341015506051500.

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碩士<br>國立中山大學<br>機械與機電工程學系研究所<br>93<br>Experiments were performed using a microparticle image velocimetry (MPIV) for full field velocity distributions of electroosmotically driven flows in a 40 mm long microchannel with a square cross section of 200 µm × 200 µm. Electroosmotic flow bulk fluid velocity measurements were made in a range of streamwise electric field strengths from 5 to 25 kV/m. A series of seed particle calibration tests can be made in a 200 µm x 200 µm x 24000 µm untreated PDMS channel incorporating MPIV to determine the electrophoretic mobilities in aqueous buffer solutions of 1

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45

Chen, Yu-Tang, and 陳育堂. "Fabrication and Analysis on Microchannel Structures." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/61864081139843190767.

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博士<br>淡江大學<br>機械與機電工程學系<br>92<br>Micro shaping techniques have been realized for various applications. In this dissertation, polymer micro manufacturing techniques are proposed to fabricate different profile microchannel structures. Besides, air flow through microtubes with diameters of 0.287 and 0.409 mm was investigated experimentally. Polymethylmethacrylate (PMMA) was dipped into methyl for two hours to fully generate the physical-chemical change. The PMMA swelling appeared through the mass transfer effect. This polymer swelling process was implemented to form the 3D micro ventur

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46

Hwang, Chen-yu, and 黃振彧. "Computation of Gaseous Flows in Microchannel." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/98579110067504277835.

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碩士<br>國立成功大學<br>航空太空工程學系碩博士班<br>95<br>In the last decade, the microelectromechanical system(MEMS) field has significant and impressive progress. For the microchannel flows, a lot of experimental and theoretical results have been presented, but it still exists some problems which are worthwhile to study. In this thesis, the numerical computations are performed to investigate the gaseous flow behaviors in the microchannels. First the unstructured tetrahedral and prismatic meshes are created in the flow domain, the four-step Runge-Kutta time integration scheme and finite volume upwind method are

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SU, BO-YU, and 蘇柏瑜. "Magnetohydrodynamic Effect in a Circular Microchannel." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/2aw584.

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碩士<br>明志科技大學<br>化學工程系碩士班<br>107<br>The main purpose of this paper is to investigate the application of a magnetic field to control the flow rate of the solution in the annular microfluidic channel. The annular microchannel used in the experiment includes three slots. The first type consists of an ITO conductive film with 1.20 cm in inner diameter and a graphite carbon electrode with of 0.80 cm in inner diameter to form a channel with 0.20 cm in width. The other two trenches are made up of 0.10 cm and 0.20 cm wide channels made of white gold rings with outer diameters of 1.80 cm, 1.50 cm and 1.

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Chen, Chia-Yung, and 陳家勇. "Thermal fluid analysis of compressible microchannel flow." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/29612527353265423501.

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碩士<br>國立中央大學<br>機械工程研究所<br>90<br>This numerical study analyzed the thermal-flow characteristics of the compressible laminar flow over the microchannel (dh < 4μm). The channel wall is assumed as non-slip flow condition. Two flow regimes were considered: 1) Ma=0.07~0.21, Re=1~10; 2) Ma=(3~12)×10-4, Re=(1.2~8.9)×10-3. Numerical results show that the compressible laminar flow has abrupt velocity jump near the channel entrance, and the fully developed flow can never be achieved no matter how long the channel is. In addition, further increases inlet velocity, more significant increasing of velocity

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Chiu, Yi-Shan, and 邱義善. "Investigation of Heat Transfer on Microchannel Evaporator." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/24616800940770022083.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>95<br>Microchannles provide a large heat transfer surface area per unit flow volume. Phase change in microchannel evaporator makes it desirable for three reasons：(1) high critical heat flux (2) high heat transfer coefficient (3) low coolant flow rate. Therefore, they are well suited for high heat flux removal and high temperature uniformity cooling applications. Present research successfully established a reliable microchannel evaporator experimental system to investigate heat transfer behavior in microchannels and enhance heat transfer performance by sintered por

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Chen, Hong-Ren, and 陳弘仁. "Design and Fabrication of the Microchannel System." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/58397027681977147649.

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博士<br>國立成功大學<br>航空太空工程學系<br>89<br>The objective of this present work applied MEMS technology to fabricate a micro-channel for the study of inside flow and heat transfer process. Due to the complexity of the rarefied gas heat transfer, we would like to focus our attention in a simplified case where the size of the channel is close to the mean free path of the gas. By performing some experiments to this micro-channel we can study the heat transfer inside a channel with different gas flows at the slip or transition regime with the bottom wall of a channel heated uniformly. The entire

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