Academic literature on the topic 'Termodynamický model'

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Journal articles on the topic "Termodynamický model"

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Costa, G. A. T. F. da, and A. L. Maciel. "Combinatorial formulation of Ising model revisited." Revista Brasileira de Ensino de Física 25, no. 1 (2003): 49–61. http://dx.doi.org/10.1590/s1806-11172003000100007.

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In 1952, Kac and Ward developed a combinatorial formulation for the two dimensional Ising model which is another method of obtaining Onsager's famous formula for the free energy per site in the termodynamic limit of the model. Feynman gave an important contribution to this formulation conjecturing a crucial mathematical relation which completed Kac and Ward ideas. In this paper, the method of Kac, Ward and Feynman for the free field Ising model in two dimensions is reviewed in a selfcontained way and Onsager's formula computed.
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Vávra, Jiří, Libor Červenka, Michal Takáts, and Josef Brož. "MATHEMATICAL MODEL OF A REAL STIRLING ENGINE CALIBRATED BY EXPERIMENTS." Journal of Middle European Construction and Design of Cars 11, no. 2 (November 1, 2013): 12–20. http://dx.doi.org/10.2478/mecdc-2013-0008.

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Shrnutí Článek se zaměřuje na popis termodynamiky reálného Stirlingova motoru pro stacionární výrobu elektrické energie a tepla z obnovitelných zdrojů. Byly zaznamenány úhlově indexované - v závislosti na natočení klikového hřídele záznamy rychle proměnných tlaků ve studeném a horkém válci nad písty a v prostoru pod písty při různém zatížení. Měření byla uskutečněna na vývojové zkušebně výrobce motorů. Tlakové průběhy byly analyzovány pomocí softwarových nástrojů vyvinutých na univerzitě. Článek dále popisuje nástroje pro analýzu experimentálních dat, které byly využity pro kalibraci detailního 1-D termodynamického modelu motoru vyvinutého na univerzitě s využitím komerční ho kódu GT-Power. Model bude využit pro optimalizace konstrukce motoru.
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Chang, Y. L., W. C. Ye, C. L. Ma, and C. M. Wang. "The Termodynamic Model of Open-Circuit Potential for Electroless Deposition of Ni on Silicon." Journal of The Electrochemical Society 153, no. 10 (2006): C677. http://dx.doi.org/10.1149/1.2221862.

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Leute, Volkmar, S. Brinkmann, J. Linnenbrink, and H. M. Schmidtke. "The Phase Diagram of the Quasiternary System (Sn, Pb) (S,Te)." Zeitschrift für Naturforschung A 50, no. 4-5 (May 1, 1995): 459–67. http://dx.doi.org/10.1515/zna-1995-4-520.

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Abstract The phase diagram of the quasiternary system (Snt Pb1-k)(S,Te1-l) for 900 K is determined by X-ray diffraction and by electron microprobe analysis. Moreover, the free enthalpy faces g(k, I) for the phases with cubic rocksalt structure (cub) or with the orthorhombic SnS structure (orh) are calculated from the interaction parameters and from the orh → cub transition data of the 4 quasibinary subsystems. The interaction parameters are also used to calculate the termodynamic factor for interdiffusion along quasibinary sections through the phase square and to calculate the energies of four-particle clusters. By application of the cluster model one obtains information on the local environment of the mixing particles and on the cluster processes that have effect upon interdiffusion
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Bogdevičius, Paulius, Bronislovas Spruogis, and Marijonas Bogdevičius. "HIGH EFFICIENCY PNEUMATIC SYSTEMS COMPRESSORS HYDRODYNAMICS AND TERMODYNAMICS PROCESS RESEARCH / DIDELIO NAŠUMO PNEUMATINĖS SISTEMOS KOMPRESORIŲ HIDRODINAMINIŲ IR TERMODINAMINIŲ PROCESŲ TYRIMAS." Mokslas – Lietuvos ateitis 8, no. 5 (December 30, 2016): 514–18. http://dx.doi.org/10.3846/mla.2016.966.

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The paper analyzes pneumatic system, which consists of three piston compressors, pipes and reciever. Designed two cylinder piston compressor with an asynchronous electric motor mathematical model. In the mathematical model has been estimated rod mechanism geometry and kinematic parameters also hudrodynamics and thermodynamic processes going in the cylinders. Also there were made mathematical experiment and presented the results of it. Nagrinėjama pneumatinė sistema, sudaryta iš trijų stūmoklinių kompresorių, vamzdžių ir resiverio. Sukurtas dviejų cilindrų stūmoklinio kompresoriaus su asinchroniniu elektriniu varikliu matematinis modelis, kuriuo įvertinama: švaistiklinio mechanizmo geometrija ir kinematiniai parametrai, cilindruose vykstantys hidrodinaminiai ir termodinaminiai procesai. Atliktas nagrinėjamos sistemos matematinis eksperimentas, pateikti tyrimo rezultatai.
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Dissertations / Theses on the topic "Termodynamický model"

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Drbal, Milan. "Termodynamický model Wankelova motoru o výkonu 11 kW." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-355455.

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The master’s thesis deals with the Wankel rotary engines and their 1D simulations using a thermodynamic simulation software for the piston engines. The necessary steps for creation of the equivalent model of the four-stroke three-cylinder combustion engine are provided. The engine used for the validation model was Aixro XR 50. The data measured on this engine during testing were used to validate the created thermodynamic model. The discharge coefficient calculation of the intake and the exhaust ports is shown. The 11kW engine design is created using validated thermodynamic model.
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Horák, Vojtěch. "Zážehový spalovací motor pro malé autonomní prostředky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417761.

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The thesis deals with the design of a small-volume four-stroke internal combustion engine with a maximum displacement of 10 cc and a power of 1 kW for autonomous devices of smaller dimensions. In addition to the analysis of individual propulsions for small aircraft, there is also a chapter with the comparison of an internal combustion engine and an electric motor with similar power. Another part of the work is the creation of a thermodynamic model in the GT Power program and its subsequent optimization to increase the overall efficiency of the engine.
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Gallo, Michal. "Model Stirlingova motoru v PSCAD." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242000.

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This dissertation about the Stirling engine deals with the history and formation of the heat engine. At the beginning of this work, fundamental parts and their functions are described, elucidating the principle of operation explained by the thermodynamic cycle and subsequently comparing the ideal and the real Stirling cycle and last but not least provides various modifications whilst describing their differences. The mathematical model of the Stirling engine is processed by Schmidth’s theoretical analysis and thereafter is created in PScad v46. The process of creating a model is shown in one of the chapters of this dissertation. The results were taken into account in the design of 3D models in Inventor Professional by Autodesk. The work concludes with the evaluation of the computational model and its functionality as well as the documentation of the 3D model.
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Vichr, Tomáš. "Vícestupňové přeplňování vznětového motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444983.

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This master thesis summarizes the basic knowledge in the field of turbocharging of internal combustion piston engines. It also focuses on the analysis of some properties of multistage turbocharging, especially for diesel engines. Using analytical relationships, a model in the form of a web application has been created, which describes the cooperation of a turbocharger or turbochargers with an internal combustion engine. With the help of this model, some two-stage supercharging options for the selected engine have been then proposed.
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Vacula, Jan. "Jednoválcový čtyřdobý motor motokrosového motocyklu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231761.

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This diploma thesis is focused on construction of one-cylinder four stroke engine designed for motocross competition. The target was create the 3D model, which has foundation on the thermodynamic simulation. Kinematics of timing mechanism was designed in Lotus Simulation. For checking the main bearings life calculation was performed.
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Koksa, David. "Sací a výfukové potrubí motoru pro nákladní automobil." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378010.

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The master’s thesis is focused on creating a thermodynamic model of the diesel engine for heavy commercial vehicle. After the model was created, new intake and exhaust pipes are designed based on simulations. Those proposed pipes variants are compared with the series design. After evaluating individual variants, the final version of the new pipes is selected and 3D model for this version is created.
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Psota, Boleslav. "Modelování termodynamických senzorů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218423.

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This work deals with behavior of the temperature dependent element that makes a part of thermodynamics system. The aim of this work is to analyze the behavior of that element and to solve the virtual model in PC program ANSYS.
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Šimíček, Petr. "Sací a výfukové potrubí motoru V8." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318645.

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The master´s thesis is focused on the design of the intake and exhaust ducts for V8 engine. Home work is focused on the description of the construction of the intake and exhaust pipes for a given engine. Another part deals with creating a thermodynamic model of the engine, and the design of the intake and exhaust pipes. The last part deals with verifying the proposed pipeline construction.
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Kopečný, Lukáš. "McKibbenův pneumatický sval - modelování a použití v hmatovém rozhraní." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-233458.

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This work describes exceptional properties of McKibben pneumatical muscle and introduces its state-of-the-art model. The mathematical model is extended especially in a field of a thermodymical behavior. A new model applies a method used for describing of a thermodynamical behavior of pneumatic cylinders until now. This method is significantly upgraded to fit a muscle behavior, particularly by considering a heat generated by a muscle internal natural friction. The model is than verified and discussed with a real system. The haptic part introduces a development and design of a haptic glove interface for the use in robotics, especially in telepresence, or in VR. The force and touch feedback is provided by Pneumatic Muscles controlled by an open loop algorithm using the introduced mathematical model. The design is light and compact.
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Kertész, Tibor. "Optimalizace systémů EGR a vodního vstřikování u zážehového motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417474.

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Books on the topic "Termodynamický model"

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Majchrzak, Ewa. Zastosowanie metody elementów brzegowych w termodynamice procesów odlewniczych. Gliwice: Dział Wydawnictw Politechniki Śląskiej, 1991.

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Szopa, Romuald. Analiza wrażliwości i zadania odwrotne w termodynamice procesów odlewniczych. Częstochowa: Wydawn. Politechniki Częstochowskiej, 2006.

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3

Pundiak, O. I. Investigacion of termodynamic characteristics of slution model rotein. Lviv, 1996.

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