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Дисертації з теми "And thermal efficiency"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Phillips, Samuel S. "Characterizing the thermal efficiency of thermoelectric modules." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/54524.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009.<br>"June 2009." Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 22).<br>An experimental setup was designed and utilized to measure the thermoelectric properties as functions of temperature of a commercially available, bismuth telluride thermoelectric module. Thermoelectric modules are solid state semiconducting devices that act reversibly as both a heat pump and a power generator. The experimental setup encased the modules in an insulating container and thermal power wa

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2

Douxchamps, Pierre-Alexis. "Diesel thermal management optimization for effective efficiency improvement." Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210123.

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This work focuses on the cooling of diesel engines. Facing heavy constraints such<p>as emissions control or fossil energy management, political leaders are forcing car<p>manufacturers to drastically reduce the fuel consumption of passenger vehicles. For<p>instance, in Europe, this fuel consumption has to reach 120 g CO2 km by 2012, namely 25 % reduction from today's level.<p>Such objectives can only be reached with an optimization of all engines components<p>from injection strategies to power steering. A classical energy balance of an internal<p>combustion engine shows four main losses: enthal

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3

Tolentino, Matthew Edward. "Managing Memory for Power, Performance, and Thermal Efficiency." Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/26301.

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Extraordinary improvements in computing performance, density, and capacity have driven rapid increases in system energy consumption, motivating the need for energy-efficient performance. Harnessing the collective computational capacity of thousands of these systems can consume megawatts of electrical power, even though many systems may be underutilized for extended periods of time. At scale, powering and cooling unused or lightly loaded systems can waste millions of dollars annually. To combat this inefficiency, we propose system software, control systems, and architectural techniques t

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4

Shi, Hongsen. "Building Energy Efficiency Improvement and Thermal Comfort Diagnosis." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1555110595177379.

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5

Al-Shibami, Fuad Hamoud. "Thermal comfort and energy efficiency in Yemeni houses." Thesis, University of Sheffield, 2004. http://etheses.whiterose.ac.uk/12842/.

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The question posed in this thesis is: by incorporate traditional architecture forms and design features, can new housing provide thermal comfort without the need for excessive use of air- conditioning as is the case in current new building methods and designs. There has been some evidence that the new type of housing being built in the hot areas in Yemen has inherently produced unacceptable comfort conditions resulting in a greater use of air conditioning while the traditional housing naturally provided more comfortable conditions and did not need to use air conditioning. This thesis investiga

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6

Gutierrez, Mauricio F. "Masonry heater performance evaluation : efficiency, emissions, and thermal modeling /." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-10062009-020208/.

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7

Hixson, Scott. "Rapid industrial furnace thermal modeling for improved fuel efficiency." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/5091.

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Thesis (M.S.)--University of Missouri-Columbia, 2007.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on April 9, 2009) Includes bibliographical references.

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8

Šumić, Mersiha. "Thermal Performance of a Solarus CPC-Thermal Collector." Thesis, Högskolan Dalarna, Energi och miljöteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:du-14526.

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The aim of this master thesis is an investigation of the thermal performance of a thermal compound parabolic concentrating (CPC) collector from Solarus. The collector consists of two troughs with absorbers which are coated with different types of paint with unknown properties. The lower and upper trough of the collector have been tested individually. In order to accomplish the performance of the two collectors, a thorough literature study in the fields of CPC technology, various test methods, test standards for solar thermal collectors as

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9

Al-Ajmi, Rashed. "Evaluation of vortex cooling systems for turbine blades." Thesis, Cardiff University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364475.

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10

Samarajeewa, Hasitha. "Design of 1.6 Liter Genset Engine." Scholarly Repository, 2011. http://scholarlyrepository.miami.edu/oa_theses/277.

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Generators are widely used across the world as portable power units in case of power outages, used for emergency services and are also used in rural areas without access to electricity. The majority of commercially available generators use internal combustion engines designed as automobile engines with little or no optimization for use in generators. With operating conditions vastly different than that of automobile engines, they can be re-designed to operate much more efficiently as generator engines. The development objective here was to design a low cost, 1.6L, lean burn, internal combustio

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11

Jardine, A. P. "Shape memory effect thermodynamics and thermal efficiencies of NiTi." Thesis, University of Bristol, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381385.

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12

Bierman, David M. (David Matthew). "Where solar thermal meets photovoltaic for high-efficiency power conversion." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/93859.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 71-73).<br>To develop disruptive techniques which generate power from the Sun, one must understand the aspects of existing technologies that limit performance. Solar thermal and solar photovoltaic schemes dominate today's solar market but both bring intrinsic and practical constraints. What will tomorrow's solar market look like? Third generation solar power generation techniques to utilize a larger portion of th

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13

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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14

Assembe, Cedric Obiang. "Integrated solar photovoltaic and thermal system for enhanced energy efficiency." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2387.

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Thesis (MTech (Mechanical Engineering))--Cape Peninsula University of Technology, 2016.<br>South Africa has raised concerns regarding the development of renewable energy sources such as wind, hydro and solar energy. Integration of a combined photovoltaic and thermal system was considered to transform simultaneous energy into electricity and heat. This was done to challenge the low energy efficiency observed when the two solar energy conversion technologies are employed separately, in order to gain higher overall energy efficiency and ensure better utilization of the solar energy. Therefore,

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15

Fraser, Kino Dwayne. "Increased Anaerobic Digestion Efficiency via the Use of Thermal Hydrolysis." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/33979.

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Waste sludge is frequently treated by anaerobic digestion to kill pathogens, generate methane gas and reduce odors so the sludge can be safely land applied. In an attempt to reduce sludge volumes and improve sludge dewatering properties, the use of thermal hydrolysis (TH), a sludge pretreatment method, has been adopted by numerous wastewater treatment plants, among them being the District of Columbia Water and Sewage Authority (DC WASA). The use of anaerobic digestion in collaboration with thermal hydrolysis has been shown to increase VS removal, COD removal and biogas production. The sludge

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16

Thorsell, Thomas. "Advances in Thermal Insulation : Vacuum Insulation Panels and Thermal Efficiency to Reduce Energy Usage in Buildings." Doctoral thesis, KTH, Byggnadsteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-90745.

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We are coming to realize that there is an urgent need to reduce energy usage in buildings and it has to be done in a sustainable way. This thesis focuses on the performance of the building envelope; more precisely thermal performance of walls and super insulation material in the form of vacuum insulation. However, the building envelope is just one part of the whole building system, and super insulators have one major flaw: they are easily adversely affected by other problems in the built environment. Vacuum Insulation Panels are one fresh addition to the arsenal of insulation materials availa

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17

Malekzadeh, Fatemeh. "Integration of Phase Change Materials in Commercial Buildings for Thermal Regulation and Energy Efficiency." Thesis, The University of Arizona, 2015. http://hdl.handle.net/10150/603534.

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One of prospective procedures of absorbing thermal energy and releasing it during the required time is the application of phase change materials known as PCMs in building envelopes. High thermal energy storage (TES) materials has been a technology that effects the energy efficiency of a building by contributing in using onsite resources and reducing cooling or heating loads. Currently, many TES systems are emerging and contributing in building assemblies, however using an appropriate type of TES in a specific building and climate requires an in-depth knowledge of their properties. This researc

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18

Mulligan, Helen. "The thermal performance of vernacular underground dwellings." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293005.

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19

Watson, Michael. "Measurements using a triaxial hot-wire anemometer in channnels containing helically ribbed pins." Thesis, Open University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328249.

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20

Blackburn, Robert John. "Maximising the thermal efficiency of a pressure gain combustion gas turbine." Thesis, University of Cambridge, 2016. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.709490.

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21

Keister, Zola Oscar. "Methods for improvement of production efficiency in thermal stressed dairy cows." Diss., The University of Arizona, 2000. http://hdl.handle.net/10150/290590.

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Multiple studies were conducted to evaluate management options for cows in a thermal stress environment. Those options included cooling to enhance cow comfort, recombinant bovine somatotropin (rbST; Posilac®) to potentially increase milk production, and reproductive hormone scheduling to theoretically coordinate follicular growth leading to ovulation. In the first series of trials measuring the effects of cooling and rbST on milk yield, reproductive performance, and health in Jersey cows during two summer of thermal stress, cows were divided into on of two pens. Both Year 1 and Year 2 control

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22

Pisarev, V., and O. O. Kuznetsova. "Energy efficiency retrofits of residential buildings in Ukraine. A case study." Thesis, Київський національний університет технологій та дизайну, 2017. https://er.knutd.edu.ua/handle/123456789/6740.

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23

Mnla, Ali Tammam. "Thermal comfort study on a renovated residential apartment in Tjärna Ängar, Borlänge." Thesis, Högskolan Dalarna, Energiteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:du-37771.

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The Swedish government in the 1960th initiated “The Million Program” to build million residentialunits to cover the housing shortage between 1965 to 1975. Tjärna Ängar neighborhood in Borlängemunicipality was built during the million-program period, where these residential units became old,and the indoor environment is uncomfortable for the residents.Recently, there have been extensive energy-efficient renovations to improving the energyefficiency,indoor air quality, and thermal comfort of these buildings. The renovation project, withcooperation between Dalarna University and the local housing

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24

Heier, Johan. "Energy Efficiency through Thermal Energy Storage : Possibilities for the Swedish Building Stock." Licentiate thesis, KTH, Kraft- och värmeteknologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-118734.

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The need for heating and cooling in buildings constitutes a considerable part of the total energy use in a country and reducing this need is of outmost importance in order to reach national and international goals for reducing energy use and emissions. One important way of reaching these goals is to increase the proportion of renewable energy used for heating and cooling of buildings. Perhaps the largest obstacle with this is the often occurring mismatch between the availability of renewable energy and the need for heating or cooling, hindering this energy to be used directly. This is one of t

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25

BARRETO, ARTHUR ANDRE LETO. "SIMULATION OF THERMAL EFFICIENCY AT TWO STROKES PROPULSION ENGINES UNDER TRANSIENT TORQUE." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2009. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=14547@1.

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PETRÓLEO BRASILEIRO S. A.<br>Atualmente o motor diesel é a propulsão básica utilizada por navios mercantes. Predominantemente o arranjo mais utilizado é o de um motor de dois tempos turboalimentado diretamente acoplado ao hélice. Estes motores são controlados por um regulador de velocidade onde um valor desejado da rotação é ajustado. O regulador opera acionando as réguas das bombas injetoras, movendo-as conforme a necessidade de manter a rotação desejada mesmo sob torque transiente. Se o rendimento térmico é reduzido, os índices das bombas injetoras terão que operar em valores mais altos, qua

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26

Aldubyan, Mohammad Hasan. "Thermo-Economic Study of Hybrid Photovoltaic-Thermal (PVT) Solar Collectors Combined with Borehole Thermal Energy Storage Systems." University of Dayton / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1493243575479443.

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27

Edwards, Jacob N. "Thermal energy storage for nuclear power applications." Thesis, Kansas State University, 2017. http://hdl.handle.net/2097/36238.

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Master of Science<br>Department of Mechanical and Nuclear Engineering<br>Hitesh Bindra<br>Storing excess thermal energy in a storage media that can later be extracted during peak-load times is one of the better economical options for nuclear power in future. Thermal energy storage integration with light water-cooled and advanced nuclear power plants is analyzed to assess technical feasibility of different storage media options. Various choices are considered in this study; molten salts, synthetic heat transfer fluids, and packed beds of solid rocks or ceramics. In-depth quantitative assessment

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28

Kumari, Epa. "Analysis of Building Envelops to Optimize Energy Efficiency as per Code of Practice for Energy Efficient Buildings in Sri Lanka - 2008." Thesis, KTH, Tillämpad termodynamik och kylteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-117984.

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Residential and commercial buildings consume approximately 20% of the global energy generation. This value is continuously growing and the governments across the globe have realized the importance of regulating the building construction to optimize the energy utilization. Energy efficient building codes have been developed to optimize the energy efficiency in buildings. OTTV (Overall Thermal Transfer Value) is a key parameter for evaluating energy efficiency of building envelops in the present building code of Sri Lanka. In this research, the prescriptive requirements mentioned in the building

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29

Blumer, Zak H. "Synthesis of Plasmonic Titanium Nitride Structures to Increase Efficiency in Solar Thermal Technologies." Ohio University Honors Tutorial College / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1524833073448935.

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30

Roberts, Andrew P. "The prevention of thermal losses from automotive lubricants to improve cold start efficiency." Thesis, University of Nottingham, 2015. http://eprints.nottingham.ac.uk/29357/.

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The internal combustion (I.C.) engine remains unrivalled as the primary means of road vehicle propulsion. The frequency of re-fuelling stations, combined with the high energy density of both gasoline and diesel fuel provide users with unrivalled flexibility and vehicle range. However a range of environmental and health concerns exist surrounding I.C. engine emissions; in particular carbon dioxide (CO2), nitrous oxides (NOx), hydrocarbons (HC) and carbon monoxide (CO). There is therefore increasing pressure on vehicle OEMs to reduce vehicle emissions through tightened emission standards and reg

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31

Selim, Kareem Hassan. "Building Integrated Water Efficiency Strategies that Generate Energy and Enhance Human Thermal Comfort." Thesis, The University of Arizona, 2014. http://hdl.handle.net/10150/339043.

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Building integrated water efficiency strategies can generate energy or reduce the energy consumption of the building. Solar and wind are two natural forces that are commonly used to provide energy to buildings today; water, on the other hand, is usually ushered off site and not utilized to its full potential. The question is how to find a way to reduce the energy used to get the water needed for the building, because water is an important aspect to care about and save. This will require several methods and strategies in order to find the best and most efficient way of doing this. This thesis i

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32

Häggström, Martin. "Thermal modelling of a truck gearbox." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-63753.

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The thermal regime of a gearbox is of considerable importance to its performance. Several significant gearbox parameters, such as the efficiency and fatigue life of its components, are temperature dependent. It is thus important to be able to determine the temperatures of the gearbox components during operation, but they are difficult to measure experimentally. A simulation model capable of predicting these temperatures would therefore be a valuable tool. The objective of this master’s thesis was to create a model capable of simulating the thermal regime of a truck gearbox during operation. To

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33

Doebber, Ian Ross. "Investigation of Concrete Wall Systems for Reducing Heating and Cooling Requirements in Single Family Residences." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/35499.

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The single family housing sector currently accounts for approximately 15% (US DOE 2002) of the total national energy consumption with the majority of the energy use associated with the HVAC system to provide comfort for the residents. In response to recent concern over the unpredictability of the energy supply and the pollution associated with its consumption, new methods are constantly being developed to improve the energy efficiency of homes. A variety of concrete wall systems including Multi-functional Precast Panel (MPP) systems and Insulating Concrete Form (ICF) systems have been prop

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34

Gregg, Christopher B. "ALTERNATIVE ENERGY TESTBED ELECTRIC VEHICLE AND THERMAL MANAGEMENT SYSTEM INVESTIGATION." Ohio University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1187371346.

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35

Rahman, Faisal. "Numerical modelling of heat transfer and thermal stresses in gas turbine guide vanes." Pretoria : [s.n.], 2003. http://upetd.up.ac.za/thesis/available/etd-05302005-103404/.

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36

Kumirai, T. "A review of passive thermal comfort energy efficiency interventions in residential buildings of Bloemfontein." Interim : Interdisciplinary Journal, Vol 8, Issue 2: Central University of Technology Free State Bloemfontein, 2009. http://hdl.handle.net/11462/368.

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Published Article<br>The paper presents a critique of passive and active thermal comfort strategies. Extensive review of literature on passive thermal comfort energy efficiency interventions and their benefits was under taken. The paper explains the correlation between climatic comfort and energy efficiency. The applicability of the energy management process in ensuring energy efficiency is presented. Passive thermal comfort energy efficiency interventions have been seen to provide thermal comfort as well as energy efficiency. Their major shortcoming is their disability to work in all kinds of

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37

Ancines, Crissiane Alves. "Comparação entre o desempenho de um coletor híbrido térmico fotovoltaico com o de um coletor plano e um módulo fotovoltaico convencional." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/149352.

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Os aproveitamentos de energia solar em aplicações térmicas ou para a produção de energia elétrica são cada vez mais importantes, por se tratarem de fontes de energia. Os estudos acerca dessas fontes estão se intensificando, a fim de melhorar seus desempenhos e suas aplicações para as condições atuais de desenvolvimento pelo mundo. Uma dessas tecnologias que utilizam como fonte a energia solar, desenvolvida nos últimos 30 anos, é o coletor híbrido térmico fotovoltaico. Esse coletor converte a energia proveniente da radiação solar em energia térmica e elétrica, simultaneamente, com a superposiçã

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38

Malekzadeh, Masoud. "Positioning of outdoor space in house design : an energy efficiency and thermal comfort perspective." Thesis, Loughborough University, 2009. https://dspace.lboro.ac.uk/2134/10301.

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The present thesis is primarily motivated by the will to provide help for decisionmaking on the overall layout of a house or a housing development in the very early stages of design from the point of view of energy efficiency and thermal comfort. This study contributes towards a deeper understanding of thermal interactions between a house and its adjacent enclosed open spaces. It addresses the contribution of the yard design, i.e. placement, size and type towards the development of a comfortable microclimate within the yard itself, as well as the reduction of total energy demands of the house

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39

Ruddell, Frederick Hugh. "Rapid thermal processing techniques employed to control emitter efficiency in bipolar and CMOS technology." Thesis, Queen's University Belfast, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335440.

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40

Liu, Chien-hsun, and 劉建薰. "THERMAL RECOVERY EFFICIENCY OF REGENERATIVE THERMAL OXIDIZER." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/69400800167709615696.

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碩士<br>大同大學<br>化學工程學系(所)<br>98<br>Emissions of volatile organic compounds (VOCs) from various industrial processes have been caused great concern and regulated by environmental laws and regulation. Regenerative thermal oxidizer (RTO) has been gaining industrial attention for VOCs control. A regenerative thermal oxidizer uses two regenerative beds packed with ceramic material to store heat and one combustion chamber in which VOCs oxidize with oxygen into carbon dioxide and water vapor. This study investigates the thermal recovery efficiencies of RTO using different packing sizes and different op

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41

Pereira, Guilherme Pinto Pereira dos Santos. "Energy Efficiency of Thermal Processes in the Meat Industry: Study and application of thermal energy efficiency measures." Master's thesis, 2019. http://hdl.handle.net/10316/93600.

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Dissertação de Mestrado Integrado em Engenharia Mecânica apresentada à Faculdade de Ciências e Tecnologia<br>O presente documento reporta o trabalho de investigação feito durante um estágio realizado no Instituto de Soldadura e Qualidade (ISQ), no âmbito do projeto EcoTermIP. Este projeto tem o objetivo de promover a eficiência energética em vários setores da indústria entres os quais o setor alimentar da carne (Indústrias de preparação de carne e produtos à base de carne). Nesse contexto, o estudo realizado foca-se na eficiência energética térmica, nomeadamente nos sistemas de refrigeração, e

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HUANG, MAO-LUNG, and 黃茂龍. "Thermal Efficiency-Economic Analysis of Cogeneration Plants." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/30592323051539999547.

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碩士<br>國立成功大學<br>造船工程學系<br>85<br>The purpose of this research is to study the thermal efficiency-economic analysis of cogeneration plants. The system performance is evaluated on the basis of thermal efficiency which is calculated using an energy balance method for the system. Since in the thermal efficiency, The performance is evaluated the exhaust， inlet state of steam turbine, condensed condition of condenser and steam. The economic analysis is using the Return On Investment (ROI) method.

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(11391983), Sai Ruthwick Madas. "Enhancing the Electrical and Thermal Performance of a Photovoltaic Thermal (PVT) System." Thesis, 2023. https://figshare.com/articles/thesis/Enhancing_the_Electrical_and_Thermal_Performance_of_a_Photovoltaic_Thermal_PVT_System/26156500.

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<p>A photovoltaic thermal (PVT) system combines a photovoltaic and solar thermal collector to convert sunlight into electrical and thermal energy. However, the cell temperature rise in PVT systems is a significant issue that is widely acknowledged by many studies in the literature. Research studies have found that the cell temperature of the PVT system can be reduced by using different cooling methods such as active or passive cooling. Active cooling methods such as nanofluid are found to be effective in controlling the temperature rise of PVT systems. However, there has been little focus in t

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NagarajanRajendiran and 羅文俊. "Numerical predictions of thermodynamic cycle and thermal efficiency of thermal-lag Stirling engine." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/r5h29k.

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碩士<br>國立成功大學<br>航空太空工程學系<br>105<br>This study is aimed at development of a numerical model for predicting thermodynamic cycle and thermal efficiency of thermal-lag Stirling engine. Thermal-lag Stirling engine is working through the principle of thermal-lag instability phenomenon. In thermal-lag engine, piston is the only moving part. So, the configuration of this engine is simpler when compared to other traditional Stirling engine. A computational fluid dynamics (CFD) numerical simulation method is used to predict the transient variations of pressure, temperature and working fluid mass in the

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Grover-Silva, Etta Lauren. "Cost effective efficiency improvements of building thermal envelopes." 2010. http://hdl.handle.net/10090/15136.

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Shih, Chung-Liang, and 施忠良. "Small Stirling Engine Manufacture and Thermal Efficiency Analysis." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/26935679115011014260.

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碩士<br>建國科技大學<br>機械工程系暨製造科技研究所<br>102<br>Air pollution and global warming becomes serious problem due to the using of the Fossil fuels for hundreds of years. In recent years, many Countries around the world intent to change the energy policy to decrease the dependence on the Fossil fuels. Therefore, the resent research about the energy focuses on green energy, and developed a variety of alternative energy sources such as Biofuels, solar power, wind power, etc. The future great development potential of renewable energy may be Stirling engine which has great contributions is in all aspects of its

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Chou, Jun-Nan, and 周俊男. "A Study of Combustion Thermal Efficiency of SI Engine." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/64949760153157227841.

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碩士<br>大葉大學<br>機械工程研究所<br>88<br>In an engine cycle, combustion thermal efficiency is the most important factor to affect engine performance. How to convert the heat released from combustion into engine brake work efficiently is the main concern of an engine designer. This research looks into the conversion efficiency of an engine deeply by zero-dimensional model together with heat release analysis method. By changing the relevant parameters of engine combustion, such as efficiency parameter a, form factor m, crank angle of start of combustion, combustion duration angle and speed of e

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Tseng, Hui-Fen, and 曾惠芬. "Efficiency Evaluation of Thermal Power Plant：Application of Green Accounting." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/57dwm6.

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碩士<br>中原大學<br>企業管理研究所<br>98<br>For the past decades, enterprises faced against an environment of air pollution, energy shortage and global warming. Consequently, government urged the enterprises to use renewable energy and energy savings on one hand and persuade the relevant industries to adopt green accounting on the other hand. The purpose of this study is to investigate the impact of the environment cost on the energy related industries and set a policy for efficiency evaluation. Specifically, this investigation the management of the thermal power plant, analyzes the influence of environmen

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Moreira, Tiago Filipe Marujo e. "Studies in displacement ventilation energy efficiency and thermal comfort." Master's thesis, 2008. http://hdl.handle.net/10216/61916.

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Estágio realizado na Fluidinova-Engenharia de Fluídos e orientado pelo Eng.º Manuel Filipe Ribeiro Madureira<br>Tese de mestrado integrado. Engenharia Química. Faculdade de Engenharia. Universidade do Porto. 2008

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Chen, Yung-Chou, and 陳永洲. "Efficiency Optimization Design for Photovoltaic/Thermal (PVT) Air Collector." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/30729852426496867936.

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碩士<br>大葉大學<br>電機工程學系<br>102<br>This paper presents a new photovoltaic/thermal air collector. Using fin-type heat sink to be the substrate of photovoltaic module that increasing the cooling area and improving the cooling performance. Adding blower to increase the air flow and recover the waste heat in the same time. Using MATLAB/Simulink to design the model of new photovoltaic/thermal air collector. The ambient parameters are used to simulate the temperature, the photovoltaic efficiency and the thermal efficiency. Simulate results was found the average photovoltaic efficiency is 12.46%, the ave

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