Дисертації з теми "Diffusion cooling"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся з топ-21 дисертацій для дослідження на тему "Diffusion cooling".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Переглядайте дисертації для різних дисциплін та оформлюйте правильно вашу бібліографію.
Jakob, Uli. "Investigations into solar powered diffusion-absorption cooling machines." Thesis, De Montfort University, 2005. http://hdl.handle.net/2086/10747.
Повний текст джерелаZuniga, Humberto. "Study of Discharge Coefficient and Trends in Film Cooling Effectiveness of Conical Holes with Increasing Diffusion Angles." Master's thesis, University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3578.
Повний текст джерелаM.S.M.E.
Department of Mechanical, Materials and Aerospace Engineering;
Engineering and Computer Science
Mechanical Engineering
Potgieter, Marthinus Christiaan. "The evaluation of a solar-driven aqua-ammonia diffusion absorption heating and cooling cycle / M.C. Potgieter." Thesis, North-West University, 2013. http://hdl.handle.net/10394/9689.
Повний текст джерелаThesis (MIng (Mechanical Engineering))--North-West University, Potchefstroom Campus, 2013.
Laot, Christelle Marie. "Gas transport properties in polycarbonate - Influence of the cooling rate, physical aging, and orientation." Diss., Virginia Tech, 2001. http://hdl.handle.net/10919/29844.
Повний текст джерелаPh. D.
Raphael, Iain. "Cooling hot property? : an assessment of the impact of property marking on residential burglary crime reduction, crime displacement or diffusion of benefits and public confidence." Thesis, University of Portsmouth, 2015. https://researchportal.port.ac.uk/portal/en/theses/cooling-hot-property(f5a6e97a-bdf6-4722-adcd-1119a57c6b7f).html.
Повний текст джерелаGanguly, Jibamitra, Massimiliano Tirone, and Kenneth Domanik. "Cooling rates of LL, L and H chondrites and constraints on the duration of peak thermal conditions: Diffusion kinetic modeling and implications for fragmentation of asteroids and impact resetting of petrologic types." PERGAMON-ELSEVIER SCIENCE LTD, 2016. http://hdl.handle.net/10150/621538.
Повний текст джерелаAgyare, Benjamin A. "INVESTIGATION OF ATOMIC MOTION IN OPTICAL LATTICES VIA INTENSITY CORRELATION MEASUREMENT." Miami University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=miami1186171967.
Повний текст джерелаDardour, Houda. "Étude des machines frigorifiques à absorption et à absorption-diffusion utilisant un mélange d'alcanes : étude systémique et modélisation rigoureuse de l'absorbeur." Thesis, Pau, 2012. http://www.theses.fr/2012PAUU3013/document.
Повний текст джерелаThis work is aimed primarily to investigate the feasibility limits and the performance of absorption and absorption-diffusion cooling machines using light alkane mixture as working pairs and secondarily to analyze the absorption process along a falling film absorber in the presence of an inert gas. It is shown that in the case of water cooling the best performances are those of an absorption machine using the C₃H₈/n-C₉H₂₀ binary mixture with a COP of about 0.51 in the heat driving temperature range 110-125℃. A COP of about 0.44 is attained with an absorption-diffusion cooling machine using the same mixture in combination with hydrogen with a heat driving temperature of 120℃. A detailed study of the absorption process with the C₃H₈/n-C₉H₂₀ pair and hydrogen as inert gas is conducted. The study results show that the heat and the mass transfer resistances are both prevalent in the vapor phase. An absorption rate of about 34% through an exchange surface of 0.15m² is calculated. A parametric study is carried out to evaluate the system response to the changes of its main characteristic parameters. This study allows a better understanding of the complex behavior of the absorption process in the presence of an inert gas
Chen, Yiqiang. "High-resolution microstructural and microanalysis studies to better understand the thermodynamics and diffusion kinetics in an advanced Ni-based superalloy RR1000." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/highresolution-microstructural-and-microanalysis-studies-to-better-understand-the-thermodynamics-and-diffusion-kinetics-in-an-advanced-nibased-superalloy-rr1000(1d4e96e0-b362-484e-82cb-bec18cab850b).html.
Повний текст джерелаDooris, Matthew David. "Apparent Total Evaporative Resistance Values From Human Trials Over a Range of Metabolic and Heat Stress Levels." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3078.
Повний текст джерелаPopovic, Dragan. "Heat transfer and flow distribution in an aircooler of a large steam surface condenser." Thesis, Queensland University of Technology, 1999. https://eprints.qut.edu.au/36097/1/36097_Popovic_1999.pdf.
Повний текст джерелаA'Barrow, Chris. "Aerodynamic design of the coolant delivery system for an intercooled aero gas turbine engine." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/13539.
Повний текст джерелаHensler, Alexander. "Lastwechselfestigkeit von Halbleiter-Leistungsmodulen für den Einsatz in Hybridfahrzeugen." Doctoral thesis, Universitätsbibliothek Chemnitz, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-101573.
Повний текст джерелаHigh power density of the power electronics in a hybrid electric vehicle demands a high power cycling capability of the semiconductor power module. Requirements are: 125°C coolant and 200°C junction temperature. For the investigation of the power cycling capability at high temperatures new test benches and measurement methods are introduces. With realized methods the reliability of following new interconnection technologies is investigated: doped aluminium bond wires, diffusion soldering, solder layer with vertical microstructures, low temperature sinter technology
Hensler, Alexander. "Lastwechselfestigkeit von Halbleiter-Leistungsmodulen für den Einsatz in Hybridfahrzeugen." Doctoral thesis, Universitätsverlag der Technischen Universität Chemnitz, 2012. https://monarch.qucosa.de/id/qucosa%3A19817.
Повний текст джерелаHigh power density of the power electronics in a hybrid electric vehicle demands a high power cycling capability of the semiconductor power module. Requirements are: 125°C coolant and 200°C junction temperature. For the investigation of the power cycling capability at high temperatures new test benches and measurement methods are introduces. With realized methods the reliability of following new interconnection technologies is investigated: doped aluminium bond wires, diffusion soldering, solder layer with vertical microstructures, low temperature sinter technology.
Edwards, Katrina J. "Oxygen isotope diffusion and zoning in diopside empirical constraints on water fugacity during cooling /." 1996. http://catalog.hathitrust.org/api/volumes/oclc/36664695.html.
Повний текст джерелаTypescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 23-26).
Ravi, B. R. "Transpiration Cooling Analysis Including Binary Diffusion Using 2-D Navier-Stokes Equations At Hypersonic Mach Numbers." Thesis, 1997. http://etd.iisc.ernet.in/handle/2005/1767.
Повний текст джерелаWalsh, A. K. "Duration of the Petermann Orogeny from coupled diffusion and phase equilibria modelling." Thesis, 2010. http://hdl.handle.net/2440/106280.
Повний текст джерелаThe Ediacaran to Cambrian (600-500 Ma) intraplate Petermann Orogeny significantly affected the crustal architecture of Central Australia, resulting in the exhumation of the Musgrave Province from beneath the Centralian Superbasin. In the western Musgrave Province response to intensive deformation is variable, with pervasive mylonitic reworking and localised migmitisation in the western Mann Ranges, and discrete mylonitisation in the eastern Mann Ranges. The duration of this period of intraplate orogenesis is a currently debated topic. Ti-in-zircon thermometry coupled with SHRIMP U-Pb zircon geochronology indicate that peak temperatures of 733±23°C in the western Mann Ranges occurred at circa 540 Ma. Combined diffusion-cooling modelling, U-Pb rutile and titanite isotopic data and calculated phase equilibria of recrystallised metagranites from the Cockburn Shear Zone and kyanite-bearing mylonites from the Mt. Charles Thrust indicate exhumation driven cooling from peak P-T conditions of 12-14 kbars and 700-750°C to 6-7 kbars and 550-600°C at c. 500 Ma occurred at a rate of 3.75-5.6°C/ My. These results indicate a slow-cooling and long-lived thermal regime and additionally suggests that final exhumation of the Musgrave Province had not occurred by c. 500 Ma, much younger than previously estimated. These findings suggest that granulite-facies metamorphism in the Musgrave Province was regional and that other factors such as fluid, control the variations in style of structural reworking. This study lends support to the notion that the intraplate Petermann Orogeny was long-lived and does not advocate short-lived orogenesis or the theory that shear heating is the driving force for metamorphism.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Sciences, 2010
Ng, BILLY CHOK NAM. "EXPERIMENTAL AND CFD STUDY OF EFFUSION COOLING IN AN S-BEND DIFFUSING PASSAGE." Thesis, 2013. http://hdl.handle.net/1974/8533.
Повний текст джерелаThesis (Ph.D, Mechanical and Materials Engineering) -- Queen's University, 2013-12-23 14:20:32.38
Li, Ming-Hsien, and 李明憲. "The Impact of Periodic Lid-driven Flow on the Development of Double-diffusive Convection during Solidification Effected by Lateral Cooling for a Liquid Binary Alloy." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/466ytz.
Повний текст джерела國立臺北科技大學
能源與冷凍空調工程系碩士班
97
Phase change materials were employed in industrial applications very often. The solidification of a binary solution is one of them (for example, casting of binary alloys). In the past, one of the main issues to study the solidification of a liquid binary alloy focused on how to remove or weaken the “double-diffusive convection” because it is the main reason to cause the poor quality of alloys. The objective of this project is to investigate the effect of periodic lid-driven flow on the development of double-diffusive convection and to find a method to erase or reduce the double-diffusive convection. A hypereutectic aqueous ammonium chloride (NH4Cl-H2O) solution was adopted as the test sample in this project and it was put into an enclosure cooled from the lateral side to investigate the flow field, heat and mass transport phenomena during solidification. The experiments of temperature and concentration distributions, movement of liquid-solid interface, and flow visualization by shadowgraph technique were conducted in this study. According to the experimental results, it is known that larger external disturbance can suppress the development of double-diffusive convection and result in more layers of circulation flows moving downward in the initial stage of solidification. At later stage of solidification, without or with periodic lid-driven flow has insignificant effect on development of double-diffusive convection.
Xu, Yu-Yun, and 徐郁筠. "The Lateral Cooling Effect of the Side Wall with Slanted Surface on the Development of Double-diffusive Convection during the Solidification of a Liquid Binary Alloy." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/jrw9u3.
Повний текст джерела國立臺北科技大學
能源與冷凍空調工程系碩士班
97
Phase change materials were employed in industrial applications very often. The solidification of a binary solution is one of them (for example, casting of binary alloys). In the past, one of the main issues to study the solidification of a liquid binary alloy focused on the development of “double-diffusive convection” because it is the main reason to cause the poor quality of alloys. The objective of this study is to investigate the effect of the slope of the side wall on the development of double-diffusive convection. An aqueous solution of 27 wt.% NH4Cl, with a liquidus temperature corresponding to 18.9℃, was adopted as the test sample in this study and it was put into an enclosure cooled from the lateral side to investigate the flow field, heat and mass transport phenomena during solidification. Experiments conducted in this study include PIV measurement on the flow field, flow visualization by shadowgraph technique, measurement of the growth of the mushy zone with time, transient temperature distribution within the test cell and the concentration distribution within the cavity. According to the experimental results of PIV measurement and flow visualization by shadowgraph, the development of double-diffusive convection became stable at later stage of solidification. Four kinds of slopes of the side wall were employed in this study, including 0, 5, 10 and 15 degrees. The larger the slope is, the earlier the double-diffusive convection occurred among the slopes of 0, 5 and 10 degrees. However, the double-diffusive convection grew the slowest for the slope of 15 degrees.
Chang, Chin-Wei, and 張晉瑋. "Using thermochromic liquid crystal slurries to investigate the effect of a slanted cooling wall on the development of double-diffusive convection during the solidification of a liquid super-eutectic binary solution." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/6rh494.
Повний текст джерела國立臺北科技大學
能源與冷凍空調工程系碩士班
100
Solidification of liquid binary alloys is found in various industrial applications, such as marine science, silicon crystal growth process, the ice storage system in HVAC, the food processing and cold storage in food industry, the metal alloys casting and low-temperature biotechnology applications. The natural convection phenomenon, also known as double-diffusive convection, which occurs during the solidification process owing to the effects of temperature and concentration gradients, is likely to cause poor quality of alloy castings. The factors contributing to the formation of double-diffusive convection and the means to eliminate or weaken such phenomenon have been the focus of research in the past. This study focused on the effect of slanted lateral cooling wall with negative slope on the formation of double-diffusive convection during the solidification of a 25 wt. % hyper-eutectic binary solution (NH4CL-H2O). Particle Image Velocimetry (PIV) techniques, thermochromic liquid crystal (TLC) and Schlieren method were employed to observe the flow development of the binary solution in the liquid. The experimental results showed that the water-rich fluid was continuously released through the mushy layer during solidification, resulting in the formation of a red color layer on the thermochromic liquid crystal. The image processing software was used for temperature field visualization. The experimental results also indicated that the lateral cooling wall with different slope has significant effects on the formation of double-diffusive convection during solidification. The growth process of double-diffusive convection varies apparently between the lateral cooling walls with higher slopes, such as in the case of 0 and 5 degrees compared to those with lower slopes, such as in the case of 10 and 15 degrees. As the slope of lateral cooling wall decreases, the filling-box process becomes faster and the time for the flow development to reach steady state becomes shorter.