Tesis sobre el tema "Second Law of thermodynamics"
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Barcellos, Ian Bernardes. "Black holes and the generalized second law of thermodynamics". reponame:Repositório Institucional da UFABC, 2018.
Buscar texto completoDissertação (mestrado) - Universidade Federal do ABC, Programa de Pós-Graduação em Física, Santo André, 2018.
Nas últimas décadas, pesquisas na área de física de buracos negros mostraram que existe uma relação profunda entre buracos negros, termodinâmica e mecânica quântica. Em particular, buracos negros em um contexto semiclássico parecem possuir uma temperatura TH=k/2p e uma entropia Sbh =A/4, proporcionais à sua gravidade superficial k e à sua área A, respectivamente. Essa surpreendente conexão é reforçada ao analisarmos a validade da chamada Segunda Lei Generalizada da Termodiâmica (SLG), que afirma que a entropia da matéria fora do buraco negro somada à entropia do buraco negro nunca decresce com o tempo. Este trabalho investiga provas gerais da validade da Segunda Lei Generalizada, já que tem um papel central na interpretação de buracos negros como entidadestermodinâmicas. Emseguida, é analisado como podemos usar a SLG para extender um teorema clássico de singularidade para um contexto semiclássico.
In the past few decades, research in black hole physics have shown a deep relation between black holes, thermodynamics, and quantum mechanics. In particular, blackholes in a semiclassical context appear to have a temperatureTH =k/2p and an entropy Sbh = A/4 proportional to its surface gravity k and area A,respectively. This striking connection is strengthened when one analyses the validity of the so called Generalized Second Law of Thermodynamics (GSL), which states that the entropy of matter outside the black hole plus the black hole¿s entropy never decrease with time. This work investigate general proofsofthevalidityofGeneralizedSecondLaw,sinceitplaysacentralroleininterpreting black holes as thermodynamical entities. In addition, it is analyzed how the GSL can be used to extend a classical singularity theorem to a semiclassical context.
Tapia, Carlos F. "Second law and thermoeconomic aspects of heat exchanger design /". The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487267546984182.
Texto completoSomayaji, Chandramohan 1980. "First and second law analysis of Organic Rankine Cycle". Diss., Mississippi State : Mississippi State University, 2008. http://library.msstate.edu/etd/show.asp?etd=etd-03102008-143144.
Texto completoCochran, Matthew. "Student understanding of the second law of thermodynamics and the underlying concepts of heat, temperature, and thermal equilibrium /". Thesis, Connect to this title online; UW restricted, 2005. http://hdl.handle.net/1773/9632.
Texto completoChristensen, Warren Michael. "An investigation of student thinking regarding calorimetry, entropy, and the second law of thermodynamics". [Ames, Iowa : Iowa State University], 2007.
Buscar texto completoFakhim, Babak. "Multifaceted Analysis of Data Centre Cooling Using CFD, Experiment and Second Law of Thermodynamics". Thesis, The University of Sydney, 2014. http://hdl.handle.net/2123/11430.
Texto completoShahvisi, Arianne. "On the nature and origins of thermodynamic asymmetry". Thesis, University of Cambridge, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648799.
Texto completoCampisi, Michele. "Microscopic Foundations of Thermodynamics and Generalized Statistical Ensembles". Thesis, University of North Texas, 2008. https://digital.library.unt.edu/ark:/67531/metadc6128/.
Texto completoCarpenter, Nolan A. W. "A study of exergy destruction and methods improving second law efficiency in common production engines using a thorough analysis of engine simulation results". Birmingham, Ala. : University of Alabama at Birmingham, 2009. https://www.mhsl.uab.edu/dt/2009m/carpenter.pdf.
Texto completoShyani, Rajeshkumar Ghanshyambhai. "Utilizing a cycle simulation to examine the use of exhaust gas recirculation (EGR) for a spark-ignition engine: including the second law of thermodynamics". Texas A&M University, 2008. http://hdl.handle.net/1969.1/86044.
Texto completoOak, Sushil Shreekant. "Second law analysis of premixed compression ignition combustion in a diesel engine using a thermodynamic engine cycle simulation". Texas A&M University, 2008. http://hdl.handle.net/1969.1/86040.
Texto completoCoulter, John Edward. "Entropy Analysis of an Economic Activity: A Case Study of Simple Brickmaking in China". Thesis, Griffith University, 1993. http://hdl.handle.net/10072/367848.
Texto completoThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Division of Asian and International Studies
Full Text
Coulter, John Edward y n/a. "Entropy Analysis of an Economic Activity: A Case Study of Simple Brickmaking in China". Griffith University. Division of Asian and International Studies, 1993. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20070410.170509.
Texto completoBaloyi, Jeffrey. "Thermodynamic analysis of a circulating fluidised bed combustor". Thesis, University of Pretoria, 2017. http://hdl.handle.net/2263/61345.
Texto completoThesis (PhD)--University of Pretoria, 2017.
Mechanical and Aeronautical Engineering
PhD
Unrestricted
Argentieri, Giuseppe. "Fluctuations and entanglement in open quantum systems". Doctoral thesis, Università degli studi di Trieste, 2014. http://hdl.handle.net/10077/9958.
Texto completoThe subject of this thesis is the study of the class of the Open Quantum Systems, i.e. quantum systems which are in weak interaction with an external environment, often acting as a reservoir, and whose evolution is consequently influenced by this interaction. Since the coupling of the system with the reservoir is weak, it makes sense to try to disentangle the dynamics of the system of interest from the global time-evolution. However, a particular attention must be taken in the derivation of the reduced evolution law, which is expressed by a Master Equation. When the reduced dynamics of the system has to be extracted from the dynamics of the compound system, different Master Equations can be obtained by the application of different kinds of Markovian approximations, which in turn give different evolution laws. In order to sort out the disparate often incompatible open quantum dynamics, a leading criterion is to ensure that they do not violate important physical properties that a proper reduced dynamics must fulfill. In primis the positivity requirement, that ensures that any physical initial state is mapped into another physical state at any later time. Secondly, the complete positivity condition, that guarantees that physical consistency is preserved also when dealing with open quantum systems which are entangled with other systems. Usually, complete positivity is justified in terms of the existence of entangled states of the open quantum system coupled to an arbitrary, inert ancilla. Complete positivity avoids the appearance of negative probabilities in the spectrum of the time-evolving states of system plus ancilla. The main bulk of this thesis work is to show that a non completely positive dynamics can lead to violations of the Second Law of Thermodynamics.
L'argomento della presente tesi è lo studio della classe dei sistemi quantistici aperti, ovvero di quei sistemi quantistici che interagiscono debolmente con un ambiente esterno, generalmente un come bagno termico, e la cui evoluzione ne viene conseguentemente influenzata. Poiché l'accoppiamento del sistema con il bagno termico è debole, è possibile tentare di separare la sua dinamica dall'evoluzione temporale del sistema globale. E' tuttavia necessario porre particolare attenzione nella derivazione dell'evoluzione ridotta, che viene determinata da un'equazione differenziale detta Master Equation: infatti quando si cerca di estrarre la dinamica ridotta di un sistema dalla dinamica del sistema composto, applicando diversi tipi di approssimazioni markoviane si possono ottenere diversi tipi di Master Equation, le quali a loro volta determinano evoluzioni diverse. Al fine di mettere ordine tra le svariate e spesso mutuamente incompatibili dinamiche aperte possibili, un criterio guida è assicurarsi che esse non violino alcuni importanti proprietà fisiche che una dinamica ridotta dovrebbe soddisfare. Innanzitutto la condizione di positività, che assicura che la legge di evoluzione temporale mappi ogni possibile stato fisico iniziale in un altro stato fisico, ad ogni istante successivo. Secondo, la condizione di completa positività, che garantisce che lo stesso tipo di consistenza fisica sia preservata anche quando si ha a che fare con sistemi quantistici aperti accoppiati ad un arbitrario sistema "ancilla". La richiesta di completa positività, infatti, esclude l'eventualità che le matrici densità degli stati evoluti del sistema composto presentino autovalori, ovvero probabilità, negativi. Il nucleo centrale di questa tesi dimostra anche di più: ovvero che una dinamica non completamente positiva può condurre a importanti violazioni del Secondo Principio della Termodinamica.
XXV Ciclo
1975
Samiei, Kasra. "Entropy analysis as a tool for optimal sustainable use of biorefineries". Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-18679.
Texto completoUppsatsnivå: D
Herpe, Julien. "Caractérisation des performances des surfaces d'échange basée sur l'évaluation numérique du taux de production d'entropie : Application aux échangeurs de chaleur d'automobiles". Valenciennes, 2007. https://ged.uphf.fr/nuxeo/site/esupversions/3074eb79-699c-460a-8414-06d91163304f.
Texto completoThis thesis presents a methodology for the characterization of automotive finned tube heat exchanger performances, which is based on the second law of thermodynamics. In order to integrate this methodology as a part of an optimization platform of finned surfaces, the proposed approach is based on the numerical tools. The study is focused on the estimation of the entropy production number N s1 = ƒ (S gen) and on the evolution of this criterion with respects to the key parameters of the fin surface design. A RANS approach is used to calculate each term of the entropy production rate S gen. We focus our attention on the entropy production rate near the wall and specific near wall treatments for the entropy production terms are introduced and discussed. With all local information obtained, the entropy production criterion is calculated. The methodology is first applied to a finned tube with longitudinal vortices generators. The angle of attack of the vortices generators and the fin material are modified in order to study the influence of the conjugated heat transfer on the entropy production rate. As a second step, louvered fins are examined. The influences on N s1 of the operating point, of the thermal contact resistance between the tube and the fin, and of geometrical parameters are examined. This study reveals the existence of a thermodynamic optimum which depends on these parameters. The entropy production number that links the viscous and thermal dissipation terms shows a competition between two antagonist phenomena and permits to determine the boundary that characterize the predominance of the one with respect to the other
Oliveira, F. Delly. "Electric energy system planning and the second principle of thermodynamics". Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=39976.
Texto completoThe electric energy industry has virtually ignored exergetic considerations in system planning due, to a large extent, to a lack of familiarity with the Second Principle and its implications. Nevertheless, exergy is an attribute which must be planned and conserved with at least the same priority as energy. It is demonstrated here that the planning of energy systems will be drastically affected when both energy and exergy are considered. However, to be able to rationally use the natural resources, exergetic analysis must become an integral part of system planning. This thesis analyses the application of the Second Principle of Thermodynamics in the planning of electric energy systems through theory, examples and case studies including economic considerations.
In order to achieve electric energy systems that are more exergetically efficient, a new type of electric energy tariff called type-of-use, is proposed. Analogous to the time-of-use rate that assigns different monetary values for the time of the day considered, the type-of-use tariff assigns a monetary value to the end-uses. Simulations are performed in different electric energy systems to demonstrate that type-of-use tariffs will indeed lead to more exergetically efficient systems.
The benefits of exergetic analysis are supported by a number of studies presented in this thesis. These studies analyse from the points of view of energetic and exergetic efficiency and cost the following: (i) A space heating system; (ii) The impact of a major introduction of electric vehicles in Canada and (iii) The long range planning of a regional electric power system consisting of two interconnected provinces.
Benelmir, Riad. "Second analysis of a cogeneration cycle". Diss., Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/20000.
Texto completoGleeson, David A. "A second law approach to aircraft conceptual design". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1998. http://handle.dtic.mil/100.2/ADA356093.
Texto completo"September 1998". Thesis advisor(s): Conrad F. Newberry. Includes bibliographical references (p. 55-56). Also available online.
Bulut, Basar. "Second Law Analysis Of Solid Oxide Fuel Cells". Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1219161/index.pdf.
Texto completoRoithmayr, Carlos. "Relating constrained motion to force through Newton's second law". Diss., Available online, Georgia Institute of Technology, 2007, 2007. http://etd.gatech.edu/theses/available/etd-03302007-125659/.
Texto completoBauchau, Olivier, Committee Member ; Hodges, Dewey, Committee Chair ; Singhose, William, Committee Member ; Costello, Mark, Committee Member ; Flannery, Raymond, Committee Member.
Didcott, J. M. "Salvaging the law: the second Ernie Wentzel memorial lecture". University of the Witwatersrand, Centre for Applied Legal Studies, 1988. http://hdl.handle.net/10962/73347.
Texto completoPalmer, Sheila Carmody. "Dual-pressure absorption cycles : the second law and working fluids". Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/18389.
Texto completoGharibyan, Hrant. "The life of quanta : entanglement wormholes and the second law". Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/92702.
Texto completoCataloged from PDF version of thesis.
Includes bibliographical references (pages 105-111).
This thesis explores two different topics in physics. The first is related to the study of the ER = EPR conjecture that relates the entanglement entropy of a collection of black holes to the cross sectional area of Einstein-Rosen (ER) bridges (or wormholes) connecting them. We show that the geometrical entropy of classical ER bridges satisfies the subadditivity, triangle, strong subadditivity, and CLW inequalities. These are nontrivial properties of entanglement entropy, so this is evidence for ER = EPR. We further show that the entanglement entropy associated to classical ER bridges has nonpositive tripartite information. This is not a property of entanglement entropy, in general. For example, the entangled four qubit pure state IGHZ4) = (I0000) + (I1111))/[square root]2 has positive tripartite information, so this state cannot be described by a classical ER bridge. Large black holes with massive amounts of entanglement between them can fail to have a classical ER bridge if they are built out of IGHZ4) states. States with nonpositive tripartite information are called monogamous. We conclude that classical ER bridges require monogamous EPR correlations. The second is a generalization of the second law of thermodynamics. We prove a generalization of the classic Groenewold-Lindblad entropy inequality, combining decoherence and the quantum Bayes theorem into a simple unified picture where decoherence increases entropy while observation decreases it. This provides a rigorous quantum-mechanical version of the second law of thermodynamics, governing how the entropy of a system evolves under general decoherence and observation. The powerful tool of spectral majorization enables both simple alternative proofs of the classic Lindblad and Holevo inequalities without using strong subadditivity, and also novel inequalities for decoherence and observation that hold not only for von Neumann entropy, but also for arbitrary concave entropies.
by Hrant Gharibyan.
S.B.
Mistry, Karan H. (Karan Hemant). "Second law analysis and optimization of humidification-dehumidification desalination cycles". Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/61911.
Texto completoCataloged from PDF version of thesis.
Includes bibliographical references (p. 139-143).
Humidification-Dehumidification (HD) desalination is a thermal distillation method that has the potential to be driven using solar heating. It is a promising technology that can potentially bring safe drinking water to people of the developing world. Surprisingly, few systematic efforts have been made to find the best HD cycles or to improve and optimize existing cycles. This thesis applies irreversibility analysis to characterize HD desalination cycles and to identify how to further improve cycles and components. It is shown that minimizing the specific entropy generation of the cycle maximizes the gained output ratio (GOR). It is also shown that each cycle has one limiting component that cannot be substantially improved and a second component that should be the target of efforts to minimize entropy generation. Finally, the failure of exergy analysis to yield conclusive results for on-design HD cycle analysis is discussed briefly. Following the Second Law analysis, an optimization effort is performed using nonlinear programming techniques in order to optimize HD desalination cycles for operating conditions that result in maximum GOR. Closed air, open water and open air, open water cycles with either air and water heating were considered in this analysis. Numerical optimization resulted in substantial improvement in GOR for all four cycle types considered. It was found that the GOR of the cycles decreases with increasing component terminal temperature difference (TTD) and that different cycles perform best at different temperature differences. Optimization also revealed that some counterintuitive design configurations can result in superior performance under the appropriate operating conditions. Other topics discussed include the behavior of exergy for pure substances and psychrometric mixtures as well as the effect of salinity on the performance of HD cycles.
by Karan H. Mistry.
S.M.
Shehata, Ahmed Samir. "Investigation and improvement of Wells turbine performance : fluid analysis & 2nd law of thermodynamics study". Thesis, University of Strathclyde, 2016. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=27850.
Texto completovan, der Ham Leen. "Improving the Second law efficiency of a cryogenic air separation unit". Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for kjemi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-14772.
Texto completoZubair, Syed M. "Solar assisted heat pump : a thermoeconomic design based on second law". Diss., Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/17573.
Texto completoRobinson, Emma Louise. "Liberty compromised? : George Orwell, English Law and the Second World War". Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7329/.
Texto completoAllbaugh, Alicia R. "The problem-context dependence of students' application of Newton's second law /". Search for this dissertation online, 2003. http://wwwlib.umi.com/cr/ksu/main.
Texto completoTerlizzese, Tiziano <1974>. "Second law analysis and simulation techniques for the energy optimization of buildings". Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2010. http://amsdottorato.unibo.it/2743/1/terlizzese_tiziano_tesi.pdf.
Texto completoTerlizzese, Tiziano <1974>. "Second law analysis and simulation techniques for the energy optimization of buildings". Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2010. http://amsdottorato.unibo.it/2743/.
Texto completoRuhl, Mary Louise. "The case for a second look at Canadian bank insolvency legislation". Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/26146.
Texto completoLaw, Peter A. Allard School of
Graduate
Johnstone, Maria Julie Frances. "The first law of thermodynamics and 2d CFT descriptions for near-extremal and near-EVH black holes". Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/8244.
Texto completoMcCarthy, David Timothy. "The influence of the Second Vatican Council on the exceptions to the ordinary canonical form of marriage". Theological Research Exchange Network (TREN), 1993. http://www.tren.com.
Texto completoWhitt, Dwight Reginald. "Personal particular churches in the antepreparatory stage of the Second Vatican Council". Theological Research Exchange Network (TREN), 1993. http://www.tren.com.
Texto completoBivona, Santo. "Adsorption Machine & Desiccant Wheel based SOLAR COOLING in a Second Law perspective". Thesis, Università degli Studi di Catania, 2011. http://hdl.handle.net/10761/224.
Texto completoSeemann, Anika. "Law and politics in the Norwegian 'Treason Trials', 1941-1964". Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/289455.
Texto completoOverkamp, Robert J. "The minister of holy communion from Gratian through the Second Vatican Council". Theological Research Exchange Network (TREN), 1998. http://www.tren.com.
Texto completoAernie, Matt. "Paul's use of judicial language in Second Thessalonians chapter one and its affects on the meaning of the text". Theological Research Exchange Network (TREN) Access this title online, 2004. http://www.tren.com.
Texto completoAnderson, Mindi Kvaal. "Comparing the Effectiveness of Three Unique Research Based Tutorials for Introducing Newton's Second Law". Fogler Library, University of Maine, 2009. http://www.library.umaine.edu/theses/pdf/AndersonMK2009.pdf.
Texto completoDu, Plessis James. "A comparison between the manner in which court will second-guess the exercise of a private contractual power, on the basis of public policy, and the manner in which court will second-guess the exercise of public power, on the basis of rationality". Master's thesis, Faculty of Law, 2021. http://hdl.handle.net/11427/33643.
Texto completoHelge, Kris. "Impetuses for First, Second, and Third Year Law Student Information Seeking Behavior, and Perception of Common Knowledge and Citation". Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc849727/.
Texto completoWieners, Maryrita. "Toward a canonical definition of the lay person development from the 1917 Code of canon law through the Second Vatican Council /". Theological Research Exchange Network (TREN), 1986. http://www.tren.com.
Texto completoTembani, Neliswa. "Teaching Newton's Second Law of Motion in Grade 11 Physical Sciences using a Conceptual Change Approach". University of the Western Cape, 2018. http://hdl.handle.net/11394/5986.
Texto completoThe purpose of this study was to investigate how the use of a conceptual change approach could contribute to enhance the teaching and learning of Newton's second law of motion in Grade 11 Physical Sciences. More specifically, the study attempted to answer the main research question namely, How can teaching using a conceptual change approach improve the learners' achievement in Newton's laws of motion? This study was underpinned by the theories of constructivism and conceptual change. The concept of effective teaching practice is based on approaches that promote conceptual change and provides learners with skills on learning how to learn and make meaning out of their learning - which is part of the constructivist view of learning. The sample of this research consisted of a single class in a school where the researcher is teaching. The class has 33 learners of mixed gender. The study adopted a single case study approach and was designed to allow for the use of multiple data collection methods. Data was collected through a pre- and post-tests, intervention lessons as well as semi-structured focus group interviews. The use of qualitative and quantitative methods of data collection provided useful and in-depth data and allowed for triangulation. The data was analysed both quantitatively and qualitatively. The results of the research showed that learners performed better in the post-test than in the pre-test. The learners mentioned the fact that the intervention lesson played an important role in making them understand the concepts better. The results also showed that, while the majority of the learners seemed to have made some progress in their conceptual development as a result of their exposure to conceptual change method of teaching, others struggled with the approach.
Bowman, Rebecca LeAnne. "When a law degree is not enough: the necessity of a second professional degree for lawyers". Diss., University of Iowa, 2010. https://ir.uiowa.edu/etd/646.
Texto completoKwok, Wing-ying Joanne y 郭詠瑩. "Effectiveness of smoke-free legislation on second hand smoke exposure of children : a systematic review". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206921.
Texto completopublished_or_final_version
Public Health
Master
Master of Public Health
Ibrahim, Mustafa Mohamed. "The Impact of Computer Simulation on the Development of the Inquiry Skills of High School Students in Physics". Thesis, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/19796.
Texto completoRobidoux, Scott Andrew. "Changing the City Landscape: From Garages to Second Residential Units". DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/539.
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