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Thematische Bibliographien / Heat / Dissertationen

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Dissertationen zum Thema „Heat“

Autor: Grafiati

Veröffentlicht am 4. Juni 2021

Zuletzt aktualisiert am 25. Juli 2025

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1

Dellorusso, Paul Robert. "Electrohydrodynamic heat transfer enhancement for a latent heat storage heat exchanger." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0027/MQ31562.pdf.

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2

Solder, Jeffery. "Heat." Digital Commons at Loyola Marymount University and Loyola Law School, 1986. https://digitalcommons.lmu.edu/etd/853.

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3

Forinash, David Michael. "Novel air-coupled heat exchangers for waste heat-driven absorption heat pumps." Thesis, Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/53897.

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A detailed investigation of novel air-coupled absorbers for use in a diesel engine exhaust-driven ammonia-water absorption system operating in extreme ambient conditions was conducted. Electrically driven vapor-compression systems are under scrutiny due to the environmental impact of synthetic refrigerants and the exacerbation of electric utility loads during peak demand periods. One alternative to vapor-compression systems is the absorption heat pump that uses environmentally benign working fluids and can be driven by a variety of heat sources, including waste heat and solar thermal processes

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4

Grundén, Emma, and Max Grischek. "Testing the Heat Transfer of a Drain Water Heat Recovery Heat Exchanger." Thesis, KTH, Energiteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-190188.

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This study investigates the change in thermal resistance due to fouling in drain water pipes. As insulation of houses and energy efficiency of appliances improve, the importance of Drain Water Heat Recovery (DWHR) is growing steadily. In older houses, the relative heat loss through drain water is smaller than in newly built houses, but should still be considered. For example, 17 % of the total heat loss in Swedish multi-family houses built before 1940 was transported with the drain water (Ekelin et al., 2006). The average temperature of drain blackwater is between 23 °C and 26 °C (Seybold &amp

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5

Razavinia, Nasimalsadat. "Waste heat recovery with heat pipe technology." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=94983.

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High grade energy, which is primarily derived from hydrocarbon fuels, is in short supply; therefore alternative energy sources such as renewable and recycled energy sources are gaining significant attention. Pyro-metallurgical processes are large consumers of energy. They in return generate large quantities of waste heat which goes un-recovered. The overall theme of this research is to capture, concentrate and convert some of this waste heat to a valuable form. The main objective is to characterize and develop heat pipe technology (some of which originated at McGill) to capture and concentrate

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6

Webber, Helen. "Compact heat exchanger heat transfer coefficient enhancement." Thesis, University of Bristol, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.540881.

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7

Riegler, Robert L. "Heat transfer optimization of grooved heat pipes /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p1422959.

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8

Da, Riva Enrico. "Two-phase Heat Transfer in Minichannel Heat Exchangers: Heat Pump Applications, Design, Modelling." Doctoral thesis, Università degli studi di Padova, 2009. http://hdl.handle.net/11577/3426130.

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Refrigerant charge minimization is one of the most important targets for heating and air conditioning applications when using natural refrigerants like hydrocarbons or ammonia to cope with the new environmental challenges. Some applications of minichannels for charge minimization in heat pumps are presented and discussed in this thesis. The design of an innovative condenser, an evaporator and an internal heat exchanger is presented. These devices are shell-and-tube heat exchangers using 2 mm i.d. minichannels and realized for the use with propane. Computational procedures based on empirical

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9

Meyer, Meyer. "Development of a range of air-to-air heat pipe heat recovery heat exchangers." Thesis, Stellenbosch : University of Stellenbosch, 2004. http://hdl.handle.net/10019.1/16389.

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Thesis (MScIng)--University of Stellenbosch, 2004.<br>ENGLISH ABSTRACT: As the demand for less expensive energy is increasing world-wide, energy conservation is becoming a more-and-more important economic consideration. In light of this, means to recover energy from waste fluid streams is also becoming more-and-more important. An efficient and cost effective means of conserving energy is to recover heat from a low temperature waste fluid stream and use this heat to preheat another process stream. Heat pipe heat exchangers (HPHEs) are devices capable of cost effectively salvaging wasted e

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10

Moe, Bjørn Kristian. "Heat Generation by Heat Pump for LNG Plants." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elkraftteknikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-14671.

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Abstract The LNG production plant processing natural gas from the Snøhvit field outside Hammerfest in northern Norway utilizes heat and power produced locally with gas turbines. Building a new production train supplied with electricity from the power grid is being evaluated as a possible solution for reducing CO2 emissions from the plant. Buying electricity from the grid rather than producing it in a combined heat and power plant makes it necessary to find new ways to cover the heat loads at the production plant. A project thesis was written in the fall semester 2010 evaluating the possibility

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11

Hua, Lihong. "Heat exchanger development for waste water heat recovery." Thesis, University of Canterbury. Mechanical Engineering, 2005. http://hdl.handle.net/10092/6459.

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Hot water plays an import role in modem life. The consumption of hot water represents a significant part of the nation's energy consumption. One way of reducing the energy consumption involved, and hence the cost of that energy, is to reclaim heat from the waste warm water that is discharged to the sewer each day. The potential for economic waste water heat recovery depends on both the quantity available and whether the quality fits the requirement of the heating load. To recover heat from waste water in residential and commercial buildings is hard to achieve in quality because of its low tem

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12

Holzaepfel, Gregory M. "Convective Heat Transfer in Parallel Plate Heat Sinks." Ohio University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1292521397.

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13

Wang, Yufei. "Heat exchanger network retrofit through heat transfer enhancement." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/heat-exchanger-network-retrofit-through-heat-transfer-enhancement(c504dc06-f261-4968-8c58-4f4de153c694).html.

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Heat exchanger network retrofit plays an important role in energy saving in process industry. Many design methods for the retrofit of heat exchanger networks have been proposed during the last three decades. Conventional retrofit methods rely heavily on topology modifications which often results in a long retrofit duration and high initial costs. Moreover, the addition of extra surface area to the heat exchanger can prove difficult due to topology, safety and downtime constraints. These problems can be avoided through the use of heat transfer enhancement in heat exchanger network retrofit. Thi

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14

Bartuli, Erik. "Optimization of Heat Transfer Surfaces of Heat Exchangers." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401602.

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Disertační práce je zaměřena na kovové a polymerní výměníky tepla. Hlavním předmětem zkoumání je optimalizace teplosměnných ploch za účelem zvýšení účinnosti výměníku tepla. Tyto cíle byly dosaženy experimentálně a numericky pomocí modelování v ANSYS. Na základě dosažených výsledků byla rozpracována technologie křížového navíjení polymerních výměníků z dutých vláken. Experimentální zařízení původně určené pro navíjení tlakových nádrží bylo modifikované pro automatizovanou výrobu polymerních výměníků z dutých vláken, ježto může být použita při jejich masové výrobě. Tato práce se také zabývala v

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15

Nyholm, Joakim. "Horizontal wastewater heat recovery heat exchanger, a model." Thesis, KTH, Energiteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-263618.

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The residential and service sector amounts to approximately 40 percent of Sweden’s entire energy demand. In which 90 percent of that is used by households and non-residential buildings. All in all about 80 TWh are used for heating and the provision of hot water in households and non-residential buildings. Since heating has always been such a large part of the energy consumption for buildings in Sweden, it is only natural that there have been several improvements along the way. There’s a new facility just installed last year in the building Pennfäktaren 11, a horizontal wastewater heat recovery

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16

Palkay, Arlene. "Dead Heat." Digital Commons at Loyola Marymount University and Loyola Law School, 1985. https://digitalcommons.lmu.edu/etd/811.

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17

Brown, Paul W. "Heat Units." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2013. http://hdl.handle.net/10150/299154.

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18

Balmain, Bryce. "Thermoregulatory function during exercise in the heat in heart failure." Thesis, Griffith University, 2018. http://hdl.handle.net/10072/381512.

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This thesis examined thermoregulatory responses in heart failure (HF) patients during exercise at a fixed relative intensity, and at an intensity that elicited a fixed rate of metabolic heat production (Hprod) in a warm environment (30°C). Additionally, the efficacy of a chronic, high-dose (5mg/d for 6wk) pharmacological intervention (folic acid supplementation) as a strategy for improving skin blood flow (SkBF) responses and thus, thermoregulatory control in these patients during exercise was assessed. The findings of three experiments conducted to achieve these aims are presented in this the

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19

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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20

Adams, Juan Carlos. "Advanced heat transfer surfaces for gas turbine heat exchangers." Thesis, University of Oxford, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.534221.

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21

Herrero, Miriam Leire. "Heat Balance of a historical church - Solar Heat Gain." Thesis, Högskolan i Gävle, Avdelningen för bygg- energi- och miljöteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-17152.

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22

Gillott, Mark C. "A novel mechanical ventilation heat recovery/heat pump system." Thesis, University of Nottingham, 2000. http://eprints.nottingham.ac.uk/12148/.

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The trend towards improving building airtightness to save energy has increased the incidence of poor indoor air quality and associated problems, such as condensation on windows, mould, rot and fungus on window frames. Mechanical ventilation/heat recovery systems, combined with heat pumps, offer a means of significantly improving indoor air quality, as well as providing energy efficient heating and cooling required in buildings. This thesis is concerned with the development of a novel mechanical ventilation heat recovery/heat pump system for the domestic market. Several prototypes have been dev

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23

McClean, A. "Heat transfer in a diver's respiratory gas heat exchanger." Thesis, University of Salford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381650.

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24

Staats, Wayne Lawrence. "Active heat transfer enhancement in integrated fan heat sinks." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78179.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 205-211).<br>Modern computer processors require significant cooling to achieve their full performance. The "efficiency" of heat sinks is also becoming more important: cooling of electronics consumes 1% of worldwide electricity use by some estimates. Unfortunately, curren

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25

Nguyen, Clayton Ma. "Heat transfer coefficients of particulate in tubular heat exchangers." Thesis, Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/53960.

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This experimental study explores the heat transfer from heated bare and finned tubular surfaces to particulates in packed bed cross flow. The results from this experiment will be used to help select the type of particulates that will be used. Additionally, these results will assist in estimating heat transfer in prototype and commercial particle to fluid heat exchangers (PFHX). This research is part of larger effort in the use of particulates in concentrating solar power technology. These solid particles are heated by concentrated sunlight to very high temperatures at which they are a suitable

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26

Adesoba, Taiwo. "Heat Waves and Heat-Related Mortality in East Tennessee." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/etd/3639.

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Heat waves represent a public health challenge that requires multiple responses and warnings to protect vulnerable populations. Although studies have reported an increasing trend of heat wave occurrence in many areas of the world, no clear trend exists in East Tennessee. Using data from Parameter-elevated Relationships on Independent Slope Models (PRISM), CDC WONDER and the United States Census Bureau, the relationship between mortality rates and year was estimated during heat wave events between 1999 and 2010. Five heat wave definitions were tested. Overall, 2007 and 2010 stand out as the yea

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27

França, Francis Ramos. "Inverse thermal design combining radiation, convection and conduction /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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28

Cooper, Paul. "Electrically enhanced heat transfer in the shell/tube heat exchanger." Thesis, Imperial College London, 1986. http://hdl.handle.net/10044/1/37978.

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29

Behbahani, Reza M. "Heat transfer and heat transfer fouling in phosphoric acid evaporators." Thesis, University of Surrey, 2003. http://epubs.surrey.ac.uk/842710/.

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The primary problem in concentrating phosphoric acid is due to fouling on the tube-side of the heat exchangers of the evaporators. Scaling on the heat transfer surfaces occurs because of high supersaturation of phosphoric acid liquor with respect to calcium sulfate. A review of the existing literature reveals that no information is available on heat transfer and on crystallisation fouling of phosphoric acid solutions. Solubility of calcium sulfate is very important with regards to the scaling problems in phosphoric acid concentration plants. Hence, the solubility of different calcium sulfate t

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30

Pidgeon, Wesley. "Numerical analysis of heat conduction from a buried heat pipe." Thesis, Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/18393.

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31

Long, Ronald Eugene. "Performance Assessment of Predicted Heat Strain in High Heat Stress." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3212.

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Heat stress is a common physical agent associated with many occupations. The most commonly used method of assessing heat stress exposure is an empirical method using the Wet Bulb Globe Temperature Index but his method is limited in its ability to parse out individual contributors to the heat stress. The International Organization for Standardization (ISO) published a rational model called Predicted Heat Strain (PHS) in 2004, and rational methods have the advantage of separating out the individual pathways for heat exchange. The objective of this research was a performance assessment of the cur

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32

Mori, Hiromi. "Enhancement of heat transfer for ground source heat pump systems." Thesis, University of Nottingham, 2010. http://eprints.nottingham.ac.uk/11483/.

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Uptake of geothermal heat pump (GSHP) systems has been slow in some parts of the world due to the unpredictable operational performance, large installation space requirement and high installation costs. Therefore, design modification was searched in order to improve the feasibility. With regard to relatively small impact of the construction costs, efficient thermal energy collection was targeted in horizontal ground-loop systems with shallow underground construction. The research started with a sensitivity analysis of the underground heat collection system using computational fluid dynamics (C

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33

Niederreiter, John. "Investigation of a novel heat conveyor type of heat exchanger." Thesis, Université Laval, 2012. http://www.theses.ulaval.ca/2012/29026/29026.pdf.

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34

Rolston, R. M. "The transfer of heat to a ground-source heat pump." Thesis, Queen's University Belfast, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373542.

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35

Gardner, David Alan. "Numerical analysis of conjugate heat transfer from heat exchange surfaces." Thesis, University of Leeds, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329229.

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36

Abualkaz, Ali Hameed Ali. "The utilization of fluidized beds for heat pipe heat recovery." Thesis, University of Leeds, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235654.

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37

Goodhew, Julie. "Making heat visible : improving household heat efficiency through thermal images." Thesis, University of Plymouth, 2013. http://hdl.handle.net/10026.1/1956.

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Energy is largely invisible to users. It has been argued that employing technologies to visualise energy will assist people in conserving energy. Energy visibility interventions have largely focussed on appliance use and electricity consumption. This thesis aims to firstly explore whether making heat visible, using thermal images, promotes heat (and thereby energy) conservation. Secondly using a multiple method approach, it explores how. Five studies were employed. Study One and Three investigated whether using thermal images as a tailored antecedent intervention would promote energy conservat

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38

Sivanantharaja, G. (Geethanchali). "Effect of surface roughness on heat transfer in heat exchanger." Bachelor's thesis, University of Oulu, 2017. http://urn.fi/URN:NBN:fi:oulu-201712143310.

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The heat exchanger is a device that transfers heat from one fluid to another or between fluid and the environment. Over the last few decades, the role of heat exchangers has increased in the process of heat recovery and introduction of new energy sources. Surface roughness of heat exchanger wall plays a vital role in the efficiency of heat transfer. Therefore, significance of surface roughness is examined by many researchers applying different shapes of roughness. Roughness is the variation in the height of a surface. It could be either a part of the geometry or due to deposition of undesired

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39

Harman, Thomas David V. "Waste heat recovery in data centers ejector heat pump analysis /." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26594.

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Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Dr. Yogendra Joshi; Committee Member: Dr. S. Mostafa Ghiaasiaan; Committee Member: Dr. Sheldon Jeter. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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40

Macbeth, Tyler James. "Conjugate Heat Transfer and Average Versus Variable Heat Transfer Coefficients." BYU ScholarsArchive, 2016. https://scholarsarchive.byu.edu/etd/5801.

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An average heat transfer coefficient, h_bar, is often used to solve heat transfer problems. It should be understood that this is an approximation and may provide inaccurate results, especially when the temperature field is of interest. The proper method to solve heat transfer problems is with a conjugate approach. However, there seems to be a lack of clear explanations of conjugate heat transfer in literature. The objective of this work is to provide a clear explanation of conjugate heat transfer and to determine the discrepancy in the temperature field when the interface boundary condition is

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41

Lin, Chia-Yang, and 林嘉洋. "Heat tolerance and heat-tolerance indicators of heat tolerant petunias." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/93396362017120872574.

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碩士<br>國立臺灣大學<br>園藝學研究所<br>94<br>Summary To develop the heat-tolerance indicators of petunia (Petunia ×hybrida Hort.), differential morphological and physiological responses to four temperatures regimes between seven heat-tolerant (HT) or heat-sensitive (HS) petunia cultivars were investigated. While grown at 27℃, the shoot dry weights of HT cultivars Wave Blue and Tidal Wave Silver increased as compared with grown at 16℃. HT cultivars maintained more branches and root dry weight than the HS cultivars did. The relative injury (RI) values of all cultivars tested decreased significantly as growin

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42

Huo, Yuhua. "A heat exchanger by using MFRD transfer heat from a heat source to a heat sink." Thesis, 2002. http://spectrum.library.concordia.ca/1782/1/MQ72922.pdf.

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The dimensional and dimensionless model formulating the melting and freezing processes in the melting and freezing rotating device (MFRD) are presented. The heat transfer process between the two concentric cylinders with D/r o < 0.01 may be considered as that between two parallel plates with a distance of D between them. The theoretical analysis about solidification or melting of a slab at a constant boundary temperature, which is greater or lower than the melting point, is conducted. The theoretical and numerical analysis of the Quasi-Steady state with the moving phase boundaries of the melti

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43

Regulagadda, Prashant. "Transient heat transfer analysis of heat exchangers in a Marnoch Heat Engine." Thesis, 2009. http://hdl.handle.net/10155/72.

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The Marnoch heat engine (MHE) is a new type of power generation device that is under research and development at the University of Ontario Institute of Technology. In this thesis, the transient heat transfer behaviour of the source heat exchanger of the Marnoch heat engine is studied, and its operation for laminar and turbulent flows is modelled. The temperature variations of the working fluid, the heating fluid and the wall, are calculated. The temperature distribution of the fluids and the wall over the length of the heat exchanger is also calculated. It is found that the temperature of the

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44

Wang, Pei-Kang, and 王培綱. "Flat Plate Pulsating Heat Pipe Heat Spreader." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/78471415576473642443.

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碩士<br>國立中央大學<br>能源工程研究所<br>95<br>This article is trying to develop a new kind heat spreader, which were used the theory of pulsating heat pipes. Channels were manufactured on copper plate, to finish the flat plate pulsating heat pipes. When heat input, fluid makes phase changes, produce the vapor pressure difference between the evaporation area and condensation area, the major heat transfer mechanism in a pulsating heat pipe is the sensible heat of liquid. Channels arrangement designed to two types, which were single loop and double side loop. In order to understand the influence by the wide o

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Hsu, Chih-Ming, and 許智明. "Heat Transfer Analysis in Microstructure Heat Exchanger." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/52288407809189933358.

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碩士<br>大同工學院<br>機械工程學系<br>84<br>This study presents the distribution of temperature of microstructureand the variation of heat flux and velocity of fluid during the cooling process.Numerical simulation method is used in studying the effect of cooling, and isothermal figures are also used to describe the temperature distribution.Finally, the temperature difference between the highest temperature of theoutlet of solid and the temperature of the inlet of fluid. It can be concludedthat the tempe

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Xu, Zhi-Ming, and 許智明. "HEAT TRANSFER ANALYSIS IN MICROSTRUCTURE HEAT EXCHANGER." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/14777997545603442965.

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47

Jia-RongYang and 楊佳蓉. "Heat transfer characteristics of Flat Heat Pipe." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/88096133164767405690.

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48

Xu, Zhe-Wei, and 許哲瑋. "Heat Flow Analysis of LED Heat Sink." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/45825919048025220171.

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碩士<br>亞洲大學<br>光電與通訊學系<br>102<br>Since LED chip is smaller than conventional light source, it is easy to distribute and accumulate heat. This can reduce its brightness, shorten its life time and drift wavelength spectrum. So in manufacturing LED products, cooling mechanism is a very important issue. In this study, academia partners developed LED Down Light was used to simulate the behavior of heat distribution. At first we use Autodesk Inventor to draw heat sink mechanism solid model, i.e., heat sink mechanism, then it is imported to CF Design heat flow analysis simulation software. After set

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Yu-sheng, Chung, and 鍾育昇. "Research for heat pipe applied heat exchanger." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/98974201385160413095.

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碩士<br>東南科技大學<br>機械工程研究所<br>104<br>This study aimed to develop and design the new type condenser of heat pipe by lead to improve the Coefficient of Performance (COP) of the R-22 room air conditioner. First of all, this study was implemented by reviewing related literatures and researches to understand heat pipe and vapor compression refrigeration (VCR) cycle. Then, the heat pipe condenser will be installed to the VCR system, and to match compressor and throttling element by trial and error, which lead to construct the new type R-22 room air conditioner. The heat pipe condenser can successfully

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Yi-HengLai and 賴奕亨. "Heat Transfer Analysis of Rectangular Heat Sink." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/4syabb.

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