Academic literature on the topic 'Thermodynamical analysis'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Thermodynamical analysis.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Thermodynamical analysis"

1

Haldar, Sourav, Pritikana Bhandari, and Subenoy Chakraborty. "A thermodynamical analysis of the inhomogeneous FLRW type model: Redefined Bekenstein–Hawking system." International Journal of Geometric Methods in Modern Physics 14, no. 11 (2017): 1750159. http://dx.doi.org/10.1142/s0219887817501596.

Full text
Abstract:
A detailed thermodynamical study has been presented for the inhomogeneous FLRW-type model of the Universe bounded by a horizon with three possible modifications of Bekenstein–Hawking formulation of thermodynamical parameters namely entropy and temperature. For the first choice of the thermodynamical system validity of both the first law of thermodynamics (FLT) and the generalized second law of thermodynamics (GSLT) are examined. Also, the integrability conditions for the exact one-forms in both the thermodynamical laws are analyzed and it is found that they are consistent with each other. On the other hand, for the other two choices of the thermodynamical system to hold the first law of thermodynamics, one must restrict the parameters (in the definition of the thermodynamical variables) in some specific integral form.
APA, Harvard, Vancouver, ISO, and other styles
2

Panigrahi, D. "Thermodynamical behavior of the variable Chaplygin gas." International Journal of Modern Physics D 24, no. 05 (2015): 1550030. http://dx.doi.org/10.1142/s0218271815500303.

Full text
Abstract:
The thermodynamical behavior of the variable Chaplygin gas (VCG) model is studied, using an equation-of-state (EoS) like [Formula: see text], where [Formula: see text]. Here B0 is a positive universal constant, n is also a constant and V is the volume of the fluid. From the consideration of thermodynamic stability, it is seen that only if the values of n are allowed to be negative, then [Formula: see text] throughout the evolution. Again thermal capacity at constant volume cV shows positive expression. Using the best fit value of n = -3.4 as previously found by Guo and Zhang (Phys. Lett. B. 645 (2007) 326) gives that the fluid is thermodynamically stable throughout the evolution. The effective EoS for the special case of n = 0 goes to Λ Cold Dark Matter (ΛCDM) model. Again for n < 0, it favors phantom-like cosmology which is in agreement with the current SNe Ia constraints like VCG model. The deceleration parameter is also studied in the context of thermodynamics and the analysis shows that the flip occurs for the value of n < 4. Finally, the thermal EoS is discussed which is an explicit function of temperature only. It is also observed that the third law of thermodynamics is satisfied in this model. As expected, the volume increases as temperature falls during adiabatic expansions. In this case, for T → 0, the thermal EoS reduces to [Formula: see text], which is identical with the EoS for the case of large volume.
APA, Harvard, Vancouver, ISO, and other styles
3

Deng, Gao-Ming, Jinbo Fan, Xinfei Li, and Yong-Chang Huang. "Thermodynamics and phase transition of charged AdS black holes with a global monopole." International Journal of Modern Physics A 33, no. 03 (2018): 1850022. http://dx.doi.org/10.1142/s0217751x18500227.

Full text
Abstract:
Thermodynamical properties of charged AdS black holes with a global monopole still remain obscure. In this paper, we investigate the thermodynamics and phase transition of the black holes in the extended phase space. It is shown that thermodynamical quantities of the black holes exhibit an interesting dependence on the internal global monopole, and they perfectly satisfy both the first law of thermodynamics and Smarr relation. Furthermore, analysis of the local and the global thermodynamical stability manifests that the charged AdS black hole undergoes an elegant phase transition at critical point. Of special interest, critical behaviors of the black holes resemble a Van der Waals liquid–gas system. Our results not only reveal the effect of a global monopole on thermodynamics of AdS black holes, but also further support that Van der Waals-like behavior of the black holes is a universal phenomenon.
APA, Harvard, Vancouver, ISO, and other styles
4

Doazan, V. "The Spheroidal/Ellipsoidal, Variable Mass-Loss, Decelerated Be Star Model (Review Paper)." International Astronomical Union Colloquium 92 (August 1987): 384–410. http://dx.doi.org/10.1017/s0252921100116501.

Full text
Abstract:
The proposed model is empirical; it is based on analysis of the available data on Be stars obtained in all the observable spectral regions, and it is required to be thermodynamically self-consistent. Rather than trying to answer the question: “What is the origin of the Be-phenomenon?” We ask: First. “What phenomena characterize empirically Be stars?” Second, “What thermodynamic characteristics are implied by the existence of such phenomena?” Third. “What inferences may be made an the atmospheric structure of a Be star from these empirical and thermodynamical characteristics?” The observed phenomena, their thermodynamical implications and the resulting model have each two aspects. On the one hand, the observational evidence for a nonradiatively heated, expanding chromosphere-corona implies the existence of both a nonradiative energy flux and a mass outflow from the photosphere. This first aspect is common to both Be and normal B stars, at least for the earliest subtypes.
APA, Harvard, Vancouver, ISO, and other styles
5

Bebiano, Natalia, Joao Da Providencia, and J. P. Da Providencia. "R\'enyi's quantum thermodynamical inequalities." Electronic Journal of Linear Algebra 33 (May 16, 2018): 63–73. http://dx.doi.org/10.13001/1081-3810.3665.

Full text
Abstract:
A theory of thermodynamics has been recently formulated and derived on the basis of R\'enyi entropy and its relative versions. In this framework, the concepts of partition function, internal energy and free energy are defined, and fundamental quantum thermodynamical inequalities are deduced. In the context of R\'enyi's thermodynamics, the variational Helmholtz principle is stated and the condition of equilibrium is analyzed. The %obtained results reduce to the von Neumann ones when the R\'enyi entropic parameter $\alpha$ approaches 1. The main goal of the article is to give simple and self-contained proofs of important known results in quantum thermodynamics and information theory, using only standard matrix analysis and majorization theory.
APA, Harvard, Vancouver, ISO, and other styles
6

Ziębik, Andrzej. "Thermodynamical motivation of the Polish energy policy." Archives of Thermodynamics 33, no. 4 (2011): 3–21. http://dx.doi.org/10.2478/v10173-012-0025-9.

Full text
Abstract:
Abstract Basing on the first and second law of thermodynamics the fundamental trends in the Polish energy policy are analysed, including the aspects of environmental protection. The thermodynamical improvement of real processes (reduction of exergy losses) is the main way leading to an improvement of the effectivity of energy consumption. If the exergy loss is economically not justified, we have to do with an error from the viewpoint of the second law analysis. The paper contains a thermodynamical analysis of the ratio of final and primary energy, as well as the analysis of the thermo-ecological cost and index of sustainable development concerning primary energy. Analyses of thermo-ecological costs concerning electricity and centralized heat production have been also carried out. The effect of increasing the share of high-efficiency cogeneration has been analyzed, too. Attention has been paid to an improved efficiency of the transmission and distribution of electricity, which is of special importance from the viewpoint of the second law analysis. The improvement of the energy effectivity in industry was analyzed on the example of physical recuperation, being of special importance from the point of view of exergy analysis.
APA, Harvard, Vancouver, ISO, and other styles
7

Gorgone, Matteo, and Patrizia Rogolino. "A Thermodynamical Description of Third Grade Fluid Mixtures." Journal of Non-Equilibrium Thermodynamics 47, no. 2 (2022): 133–42. http://dx.doi.org/10.1515/jnet-2021-0058.

Full text
Abstract:
Abstract A complete thermodynamical analysis for a non-reacting binary mixture exhibiting the features of a third grade fluid is analyzed. The constitutive functions are allowed to depend on the mass density of the mixture and the concentration of one of the constituents, together with their first and second order gradients, on the specific internal energy of the mixture with its first order gradient, and on the symmetric part of the gradient of barycentric velocity. Compatibility with the second law of thermodynamics is investigated by applying the extended Liu procedure. An explicit solution of the set of thermodynamic restrictions is obtained by postulating a suitable form of the constitutive relations for the diffusional mass flux, the heat flux, and the Cauchy stress tensor. Taking a first order expansion in the gradients of the specific entropy, the expression of the entropy flux is determined. It includes an additional contribution due to non-local effects.
APA, Harvard, Vancouver, ISO, and other styles
8

Neves, M. J., Everton M. C. Abreu, Jorge B. de Oliveira, and Marcelo Kesseles Gonçalves. "Thermostatistical analysis for short-range interaction potentials." International Journal of Geometric Methods in Modern Physics 17, no. 13 (2020): 2050193. http://dx.doi.org/10.1142/s0219887820501935.

Full text
Abstract:
In this paper, we study the thermodynamics of short-range central potentials, namely, the Lee–Wick (LW) potential, and the Plasma potential. In the first part of the paper, we obtain the numerical solution for the orbits equation for these potentials. Posteriorly, we introduce the thermodynamics through the microcanonical and canonical ensembles formalism defined on the phase space of the system. We calculate the density of states associated with the LW and the Plasma potentials. From density of states, we obtain the thermodynamical physical quantities like entropy and temperature as functions of the energy. We also use the Boltzmann–Gibbs formalism to obtain the partition functions, the mean energy and the thermal capacity for these short-range potentials.
APA, Harvard, Vancouver, ISO, and other styles
9

Mathis, Hélène. "A thermodynamically consistent model of a liquid-vapor fluid with a gas." ESAIM: Mathematical Modelling and Numerical Analysis 53, no. 1 (2019): 63–84. http://dx.doi.org/10.1051/m2an/2018044.

Full text
Abstract:
This work is devoted to the consistent modeling of a three-phase mixture of a gas, a liquid and its vapor. Since the gas and the vapor are miscible, the mixture is subjected to a non-symmetric constraint on the volume. Adopting the Gibbs formalism, the study of the extensive equilibrium entropy of the system allows to recover the Dalton’s law between the two gaseous phases. In addition, we distinguish whether phase transition occurs or not between the liquid and its vapor. The thermodynamical equilibria are described both in extensive and intensive variables. In the latter case, we focus on the geometrical properties of equilibrium entropy. The consistent characterization of the thermodynamics of the three-phase mixture is used to introduce two Homogeneous Equilibrium Models (HEM) depending on mass transfer is taking into account or not. Hyperbolicity is investigated while analyzing the entropy structure of the systems. Finally we propose two Homogeneous Relaxation Models (HRM) for the three-phase mixtures with and without phase transition. Supplementary equations on mass, volume and energy fractions are considered with appropriate source terms which model the relaxation towards the thermodynamical equilibrium, in agreement with entropy growth criterion.
APA, Harvard, Vancouver, ISO, and other styles
10

XING, LILI, JIANBIN CHEN, YUANXING GUI, ERIC M. SCHLEGEL, and JIANBO LU. "VALIDITY OF THE THERMODYNAMICAL PROPERTIES OF THE DARK ENERGY MODEL WITH THE EQUATION OF STATE: w = w0 + w1 · z(1 + z)/(1 + z2)." Modern Physics Letters A 26, no. 12 (2011): 885–92. http://dx.doi.org/10.1142/s0217732311035183.

Full text
Abstract:
We investigate the validity of the thermodynamical properties of the universe in a new parametric model of dark energy with the equation of state w = w0 + w1 · z(1 + z)/(1 + z2). In the spatially homogeneous and isotropic universe, assuming that the temperature and entropy in cosmology is as in a black hole, we examine the thermodynamical properties of the universe bounded by the apparent horizon and the event horizon respectively. By analysis, we find that the first and the second laws of thermodynamics are valid inside the apparent horizon, while they break down inside the event horizon.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Thermodynamical analysis"

1

Rohde, Anders. "Thermodynamical Analysis Tool in MATLAB : Development of a thermodynamical analysis tool for the Combustion Rig in the combustion laboratories at MARINTEK, Trondheim." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for marin teknikk, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-26076.

Full text
Abstract:
To meet the increasing world populations need for transportation, fossil fueled ships will are ready to offer their services. Less fuel fuel consumed per cargo unit transported, is favourable for both the operator and the enviroment. Reduced fuel consumption means less money spent on fuel and less pollution to the air. Stricter regulations regarding air pollutions from ship also requiare actions to be take to meet these.Better understanding of the combustion processes, is an important factor to improve the diesel and gas engines operating around the world today. To obtain this understanding and knowledge, experiments needs to be performed. Knowing the proper test conditions during an experiment is vital to improve the accuracy of the results.This thesis have coped with a way to improve the experiments performed in a fixed volume combustion rig at MARINTEK. The problem at current time is to have a proper estimate of the gas compsiton in the righ when the test fuel is injected. Creating the proper test temperature and pressure is made by the combustion of a combustable gas. The problem is to know how much of the combustable species in the gas that have actually combusted.Estimating the compostion have been done by creating a two-zone model, where the unburned gas is in one and the completely combusted is in the other. This make a set of four differential equations, that is solved simultaniously. Input to these calculations is the measured pressure from a finished experiment. The calcualations is performed offline after an experiment is performed.Based on the estimate of the composition after solving the two-zone model, an estimate for the rate of heat release from the gas combustion is calculated based on the mass of gas burned and the exact known composition of the combustables. A estimate for the ROHR of the test fuel is calculated, using a closed system analysis. The a plot of the ROHR for the pre-combustion and injection experiment is displayed in a graphical user interface developed for this purpose.Accuracy of the assumptions and methodes used is discussed, and suggestions for improvements and future work is implemented in the disucussion.
APA, Harvard, Vancouver, ISO, and other styles
2

Whitehead, Andile. "Statistical-thermodynamical analysis, using Tsallis statistics, in high energy physics." Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/13391.

Full text
Abstract:
Includes bibliographical references.<br>Obtained via the maximisation of a modified entropy, the Tsallis distribution has been used to fit the transverse momentum distributions of identified particles from several high energy experiments. We propose a form of the distribution described in Cleymans and Worku, 2012, and show it to be thermodynamically consistent. Transverse momenta distributions and fits from ALICE, ATLAS, and CMS using both Tsallis and Boltzmann distributions are presented.
APA, Harvard, Vancouver, ISO, and other styles
3

Sundarasaradula, Doy. "A thermodynamical perspective on organisations their structure and evolution /." Access electronically, 2006. http://ro.uow.edu.au/theses/101.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Biekša, Darius. "Assessment of building service systems process integration applying exergy critrerion." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080605_143445-30225.

Full text
Abstract:
A significant part of world energy consumption balance, approx. 40 %, is utilized in buildings. Maintenance of comfortable conditions and improvement in the living, working or recreational environment is a desire for every human. Therefore it is no surprise that there has been a sudden increase in scientific research in the field of building’ energy efficiency. Despite the relevance of the problem there is no sustaining methodology for evaluating building’ energy efficiency by applying sustainable energy development approach. The majority of the researchers don’t assess different potential of the analyzed energy flows nor systems operational regimes. The aim of the work is to evaluate the possibilities for applying exergetical process and system integration method in the design, operation and normalization of the office building service systems: to prepare design solutions that increase buildings’ service systems’ thermodynamical efficiency and covers individual processes and elements’ chain systems. The thesis is divided into the introduction and three main chapters, conclusions, a list of literature and a list of publications. In this work the building service systems’ analysis incorporates three interconnected methods: system analysis, life cycle and thermodynamical analysis. Application of system analyses enables an estimation of service system’s elements (subsystems) and their interconnections. Life cycle analysis allows estimation of total exergy demand through the... [to full text]<br>Ženklią dalį pasauliniame galutinės energijos vartojimo balanse, apie 40 %, užima energijos dalis, suvartojama pastatuose. Komfortinių sąlygų palaikymas ir gerinimas gyvenamojoje, darbo ar poilsio aplinkoje yra natūralus kiekvieno žmogaus poreikis. Pastaruoju metu stebimas ryškus mokslinių tyrimų suaktyvėjimas didininat energijos vartojimo pastatuose efektyvumą. Nepaisant aktualios problematikos, nuoseklios, darnia energetikos plėtra grindžiamos pastatų energetinio efektyvumo vertinimo metodikos iki šiol nėra. Daugelio tyrėjų naudojami metodai neįvertina skirtingų analizuojamų energijos srautų kokybinių potencialų, nekreipiamas dėmesys į skirtingus sistemų veikimo režimus jų eksploatavimo metu. Darbo tikslas – įvertinti galimybes taikyti procesų ir sistemų integracijos metodą viešųjų pastatų mikroklimato sistemų projektavime, naudojime bei normavime, sukuriant individualius procesus ir visą įrenginių sistemą aprėpiantį priemonių kompleksą, kurio dėka būtų padidintas energijos vartojimo pastate termodinaminis naudingumas. Disertaciją sudaro įvadas, 3 skyriai, pagrindinės išvados, naudotos literatūros sąrašas. Disertaciniame darbe pastato inžinerinių sistemų tyrimui panaudoti trys metodai: sisteminė analizė, gyvavimo ciklo analizė ir termodinaminė (ekserginė) analizė. Sisteminės analizės naudojimas leidžia apibrėžti pastato inžinerinių sistemų elementus bei jų tarpusavio ryšius. Pasitelkus gyvavimo ciklo analizę nustatomi eksergijos poreikiai per visą sistemos gyvavimo... [toliau žr. visą tekstą]
APA, Harvard, Vancouver, ISO, and other styles
5

Leclerc, Gaétan. "Nonlinearity, fractals, Fourier decay - harmonic analysis of equilibrium states for hyperbolic dynamical systems." Electronic Thesis or Diss., Sorbonne université, 2024. http://www.theses.fr/2024SORUS264.

Full text
Abstract:
Ce doctorat se situe à l'intersection entre le domaine de la géométrie fractale et des systèmes dynamique hyperbolique. Étant donné un système dynamique hyperbolique dans un espace euclidien (de petite dimension), considérons un sous-ensemble fractal compact invariant, ainsi qu'une mesure de probabilité invariante supportée sur cet ensemble fractal, avec de bonnes propriétés statistiques, telle que la mesure d'entropie maximale. La question est la suivante : la transformée de Fourier de la mesure tends elle vers zéro a la vitesse d'une puissance de xi ? Notre objectif principal est de montrer que, pour plusieurs familles de systèmes dynamiques hyperboliques, la non-linéarité de la dynamique suffit à démontrer de tels résultats de décroissance. Ces énoncés seront obtenus en utilisant un outil puissant du domaine de la combinatoire additive : le phénomène de somme-produit<br>This PhD lies at the intersection between fractal geometry and hyperbolic dynamics. Being given a (low dimensional) hyperbolic dynamical system in some euclidean space, let us consider a fractal compact invariant subset, and an invariant probability measure supported on this fractal set with good statistical properties, such as the measure of maximal entropy. The question is the following: does the Fourier transform of the measure exhibit power decay ? Our main goal is to give evidence, for several families of hyperbolic dynamical systems, that nonlinearity of the dynamics is enough to prove such decay results. These statements will be obtained using a powerful tool from the field of additive combinatorics: the sum-product phenomenon
APA, Harvard, Vancouver, ISO, and other styles
6

Chehayeb, Karim Malek. "Thermodynamic analysis of electrodialysis." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111721.

Full text
Abstract:
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 157-163).<br>The work presented in this thesis is motivated by the water and energy problems our world faces today. Desalination can help alleviate the problem of water shortage by increasing the supply of fresh water. However, for desalination to play a major role in the future, it needs to be done in a sustainable manner. Significant progress towards making desalination technologies sustainable can be made by decreasing their energy consumption. This can be done with the help of a better understanding of the thermodynamics of desalination technologies. In this thesis, we present a thermodynamic analysis of electrodialysis (ED). ED is a desalination technology with many applications, and has shown promise in desalinating brackish water and in concentrating high-salinity brines. In order to better understand how the energetic performance of this technology can be improved, we first study the sources of entropy generation at different salinities, and locate areas where possible improvements need to be made under different operating conditions. In the second part, we define a fair set of constraints to allow a fair comparison between different system sizes, designs, and operating conditions. We study the tradeoffs governing the optimal channel height and velocity for brackish-water desalination and for high-salinity brine concentration. In addition, we study the minimum costs associated with the different system sizes, and we compare the differing trends in brackish-water and high-salinity applications. Further, we report optimal values of system size, current density, length, velocity, and cost for the two applications at different unit fixed costs and energy costs. In the third part, we study possible improvements to the energy efficiency of electrodialysis through the use of two electric stages with different voltages, and through the operation using a counterflow configuration. We first look at how a two-stage ED system should be operated for optimal energy efficiency. We then quantify the effect of operating under two voltages in brackish-water desalination and in high-salinity brine concentration. This is done at systems sizes that are shown to be cost effective at different unit fixed costs and energy costs. Finally, we quantify the effect of operating ED in counterflow for the same applications. In the final part, we study the optimal operation of a batch ED system for the desalination of brackish water and seawater, and for the concentration of high-salinity brine. We compare three processes: operation under constant voltage, constant current, and constant entropy generation. We then study the effect of improved operation on the energy consumption and on the system cost of batch ED at different fixed-to-energy cost ratios. It is shown that significant improvements to energy consumption and cost can be made through better system operation, especially in the seawater desalination application.<br>by Karim Malek Chehayeb.<br>Ph. D.
APA, Harvard, Vancouver, ISO, and other styles
7

Soares, Pinto Filipe. "Thermodynamic analysis of distillation." Thesis, University of Manchester, 1998. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.676533.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Buford, Clarence Marcelle. "Thermodynamic Analysis of Hydrogen Generation." Diss., Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/5295.

Full text
Abstract:
Hydrogen is an energy carrier that can be used to create electricity via an electrochemical device called a fuel cell. Thus, many American scientists and policy makers consider hydrogen to be the fuel of the future because it can be produced without depending on petroleum imports. The research described in this dissertation investigates a thermodynamic model to predict results from and to compare methods of producing hydrogen. Hydrogen generation will be explored through modeling two types of processes: steam reforming and supersonic pyrolysis. Results of the model predict that although methanol is a widely used fuel for steam reforming, dimethyl ether can produce the same amount of hydrogen when it is reformed while consuming less energy. Supersonic pyrolysis is a well known process but has only recently been considered as a route to produce hydrogen. The model shows that pyrolysis could be a good alternative to steam reforming. Pyrolysis of fuels occurs at higher temperatures than does steam reforming and hence a higher energy input is necessary, however, hydrogen can be produced ten times faster making pyrolysis a more powerful method to produce hydrogen.
APA, Harvard, Vancouver, ISO, and other styles
9

Allen, Stephen R. "Micro-generation for UK Households : thermodynamic and related analysis." Thesis, University of Bath, 2009. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.519032.

Full text
Abstract:
Micro- generation is the small-scale and localised provision of heat or electricity. Micro-generators have the potential to reduce greenhouse-gas emissions and enhance energy security by providing heat or electricity from either renewable sources, or via the more efficient use of fossil fuels. But this potential is often unquantified or unclear, and hence quantitative information is required concerning both the energetic performance of micro-generators and their ability to provide net reductions in carbon emissions. <br /> In the context of household energy provision in the UK, thermodynamic and related carbon analyses of three micro-generation technologies have been carried out. These studies contribute to the research of the SUPERGEN ‘Highly Distributed Power Systems’ Consortium, which has been addressing a broad range of issues regarding micro-generation. The technologies analysed here are a grid-tied micro-wind turbine (rotor diameter 1.7m, rated power 600 W at 12 m/s), a grid-tied solar photovoltaic array (15 m2, 2.1 kWp mono-crystalline silicon), and a solar hot-water system (2.8 m2 flat-plate collector, direct-feed system). Annual energy outputs were estimated and contextualised against the demands of representative UK households. The overall energy-resource and carbon savings provided by the micro-generators were assessed on the basis that they (partially) displace the established supply systems. Savings were then compared with the energy-resource and carbon ‘debts’ of the micro-generators to determine their net performance. <br /> The displaced energy or carbon payback periods of the micro-generators were estimated to be well within their estimated lifetimes: a maximum 2.5 years for the SHW system, 3.1 years for the micro-wind turbine installed in an ‘open’ environment, and 7.4 years for the solar PV system. After payback, net energy-resource and carbon savings accrue. This thesis thus demonstrates that, given appropriate UK installations, all three micro-generators can reduce carbon emissions and enhance energy security by reducing use of, and dependence upon, fossil fuels.
APA, Harvard, Vancouver, ISO, and other styles
10

Linnemann, Claus [Verfasser]. "Thermodynamic Analysis of Fuel Cells / Claus Linnemann." Aachen : Shaker, 2003. http://d-nb.info/1170544584/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Thermodynamical analysis"

1

Tempelman, Arkady. Ergodic Theorems for Group Actions: Informational and Thermodynamical Aspects. Springer Netherlands, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Mariusz, Urbaʹnski, ed. Thermodynamical formalism and multifractal analysis for meromorphic functions of finite order. American Mathematical Society, 2010.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

United States. National Aeronautics and Space Administration., ed. Automotive gas turbine power system-performance analysis code. National Aeronautics and Space Administration, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Pinto, F. Soares. Thermodynamic analysis od distillation. UMIST, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Zemp, R. J. Thermodynamic analysis of separation systems. UMIST, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Campbell, Ashley S. Thermodynamic analysis of combustion engines. R.E. Krieger Pub. Co., 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Shethna, Hiren K. Thermodynamic analysis of chemisorption processes. UMIST, 1996.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Gardner, John F. Thermodynamic Analysis for Industrial Refrigeration Systems. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-031-79705-7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Vîlcu, R. Polymer thermodynamics by gas chromatography. Elsevier, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Kirchhoff, William H. EXAM, a two-state thermodynamic analysis Program. U.S. Dept. of Commerce, National Institute of Standards and Technology, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Thermodynamical analysis"

1

Stachov, A. P. "The Medial Section as a Proportion for the Thermodynamical Equilibrium of Selforganizing Systems." In Systems Analysis and Simulation II. Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-8936-1_87.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Hieber, Matthias, and Jan Prüss. "Thermodynamical Consistent Modeling and Analysis of Nematic Liquid Crystal Flows." In Mathematical Fluid Dynamics, Present and Future. Springer Japan, 2016. http://dx.doi.org/10.1007/978-4-431-56457-7_15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Grigorova, Veneta, and Dimitar Roussev. "A Thermodynamical Model for Analysis of Isothermal Phase Transformations under High Pressure." In Materials Science Forum. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-438-3.57.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Magiera, Jim, and Christian Rohde. "Analysis and Numerics of Sharp and Diffuse Interface Models for Droplet Dynamics." In Fluid Mechanics and Its Applications. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-09008-0_4.

Full text
Abstract:
AbstractThe modelling of liquid–vapour flow with phase transition poses many challenges, both on the theoretical level, as well as on the level of discretisation methods. Therefore, accurate mathematical models and efficient numerical methods are required. In that, we focus on two modelling approaches: the sharp-interface (SI) approach and the diffuse-interface (DI) approach. For the SI-approach, representing the phase boundary as a co-dimension-1 manifold, we develop and validate analytical Riemann solvers for basic isothermal two-phase flow scenarios. This ansatz becomes cumbersome for increasingly complex thermodynamical settings. A more versatile multiscale interface solver, that is based on molecular dynamics simulations, is able to accurately describe the evolution of phase boundaries in the temperature-dependent case. It is shown to be even applicable to two-phase flow of multiple components. Despite the successful developments for the SI approach, these models fail if the interface undergoes topological changes. To understand merging and splitting phenomena for droplet ensembles, we consider DI models of second gradient type. For these Navier–Stokes–Korteweg systems, that can be seen as a third order extension of the Navier–Stokes equations, we propose variants that are more accessible to standard numerical schemes. More precisely, we reformulate the capillarity operator to restore the hyperbolicity of the Euler operator in the full system.
APA, Harvard, Vancouver, ISO, and other styles
5

Grigorova, Veneta. "Thermodynamical Behaviour of PdSe2 while Subjected Isothermally to High Pressure – Volumetric Level Analysis." In Diffusion in Solids and Liquids III. Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/3-908451-51-5.271.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Grigorova, Veneta. "Thermodynamical Behaviour of PdSe2 while Subjected Isothermally to High Pressure - Axial Level Analysis." In Diffusion in Solids and Liquids III. Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/3-908451-51-5.277.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Dincer, Ibrahim, and Tahir Abdul Hussain Ratlamwala. "Thermodynamic Analysis." In Integrated Absorption Refrigeration Systems. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-33658-9_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Dincer, Ibrahim, and Anand S. Joshi. "Thermodynamic Analysis." In Solar Based Hydrogen Production Systems. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-7431-9_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Zohuri, Bahman, and Nima Fathi. "Thermodynamics." In Thermal-Hydraulic Analysis of Nuclear Reactors. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17434-1_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Zohuri, Bahman. "Thermodynamics." In Thermal-Hydraulic Analysis of Nuclear Reactors. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-53829-7_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Thermodynamical analysis"

1

Prek, Matjaz. "Thermodynamical Analysis of the Human Thermal Comfort." In Thermal Sciences 2004. Proceedings of the ASME - ZSIS International Thermal Science Seminar II. Begellhouse, 2004. http://dx.doi.org/10.1615/ichmt.2004.intthermscisemin.370.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Poveda-Cuevas, F. J., P. C. M. Castilho, S. R. Muniz, and V. S. Bagnato. "Thermodynamical analysis of a trapped BEC: Phase transitions." In Latin America Optics and Photonics Conference. OSA, 2012. http://dx.doi.org/10.1364/laop.2012.lm2a.16.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Castilho, P. C. M., F. J. Poveda-Cuevas, S. R. Muniz, and V. S. Bagnato. "Thermodynamical analysis of a trapped BEC: Characterization of the experimental setup." In Latin America Optics and Photonics Conference. OSA, 2012. http://dx.doi.org/10.1364/laop.2012.lm2a.17.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Veselkov, A. N., and A. O. Lantushenko. "NMR investigation of phenanthridine dyes self-association in aqueous solution. Structural and thermodynamical analysis." In XV International School on Spectroscopy of Molecules and Crystals, edited by Galina A. Puchkovska and Sergey A. Kostyukevych. SPIE, 2002. http://dx.doi.org/10.1117/12.486666.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Ezzuldeen, Mustafa M. "Innovative Gas Turbine Engine Cycle Aerothermodynamical Analysis." In ASME 2013 Gas Turbine India Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gtindia2013-3522.

Full text
Abstract:
The gas turbine engine design is fundamentally, taking the air flow into the compressing stage then combustion stage to add energy, and finally extracting energy in the turbine module. This journey of the flow in the engine is in serial connections. Posing the problem of the limiting turbine inlet temperature, the number that all the turbomachinery engineers desperately want to increase by tuning the inlet stages materials, or fine changes onto the blades’ profile or the flow paths. But the significant increase to this temperature lies under more fundamental and radical redesigns to the theory of the gas turbine operation, and its thermodynamical cycle. These principles were considered for long untouchable facts, and stayed lurking from the engineers examining eyes. This paper introduces one of these possibilities by genuine redesign concepts. Backed with CFD analysis, and Thermodynamical feasibility studies to address the potential problems of these modifications. The redesigns include implementing the new concept of the contra-rotating turbine more effectively to reduce the turbine module size, connecting pressurized fluid streams of two counter-rotating compressors in parallel instead of the serial connection, forming a protecting Pressurized shield for the entry turbine stages and, Extracting the energy in the process flow using flows interactions instead of flow-blades interactions.
APA, Harvard, Vancouver, ISO, and other styles
6

Eric, Esterlingot, Guibert Philippe, Lavy Jacques, and Raux Stéphane. "THERMODYNAMICAL AND OPTICAL ANALYSES OF CONTROLLED AUTO-IGNITION COMBUSTION IN TWO STROKE ENGINES." In Small Engine Technology Conference & Exposition. Society of Automotive Engineers of Japan, 1997. http://dx.doi.org/10.4271/978473.

Full text
Abstract:
&lt;div class="htmlview paragraph"&gt; &lt;/div&gt; &lt;div class="htmlview paragraph"&gt; &lt;/div&gt; &lt;div class="htmlview paragraph"&gt;One of the main drawback of the two stroke engine is the unstable running especially at light load which involves high emission of unburned hydrocarbons. In this case, the scavenging process has a low efficiency and the high quantity of residual gas in cylinder leads to incomplete combustion in certain cycles.&lt;/div&gt; &lt;div class="htmlview paragraph"&gt; &lt;/div&gt; &lt;div class="htmlview paragraph"&gt;The use of controlled auto-ignition combustion or ATAC, which is initiated by auto-ignition instead of a spark plug, provides a consistent increase of the thermal efficiency and a lower ignition of the fresh charge. Its main characteristic is a great cyclic stability. The experimental work described in this paper is focused on the analyses of the auto-ignition phenomenon.&lt;/div&gt; &lt;div class="htmlview paragraph"&gt; &lt;/div&gt; &lt;div class="htmlview paragraph"&gt;A FORCE outboard engine 1230 cc three cylinders is used in this research work with extra special throttles in the tranfer duct. Large windows are mounted in the cylinder head and allow us a complete chamber visualization in firing conditions at many crankangle position. The engine is entirely instrumented (pressure, exhaust gas analysis, cylinder gas analysis by a sampling valve …).&lt;/div&gt; &lt;div class="htmlview paragraph"&gt; &lt;/div&gt; &lt;div class="htmlview paragraph"&gt;The parametric study and its interpretation reveal that the change of combustion process can be explained in term of aerodynamic and of the enthalpy of the residual gas fraction. Control of the combustion process diminishes knocking apparition and allows us a wide range of auto-ignition running conditions. Response of energy release has been studied and shows a cycle regulation of the start of ignition and combustion speed. To complete the parametric study, images obtained in the two modes are presented and reveal important differences as for example a random ignition location for auto ignition combustion. A video film comparing the two combustion modes has been realised.&lt;/div&gt; &lt;div class="htmlview paragraph"&gt; &lt;/div&gt;
APA, Harvard, Vancouver, ISO, and other styles
7

Laeri, Franco, and André Noack. "Maximum Entropy Analysis of Dynamic Light Scattering Signals." In Optical Fabrication and Testing. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oft.1988.tha11.

Full text
Abstract:
Glass transition temperatures of thin polymer coatings (similar to the coating of a magnetic storage disc) on alumina substrates have been evaluated with dynamic light scattering methods. At this temperature the correlation time of the thermodynamical fluctuations in the polymer increases and so the spectrum of the dynamic light scattering signal changes accordingly. In practise only partial knowledge of the autocorrelation function exists, usually based on a finite series of data samples taken in a finite intervall. In the common analysis the autocorrelation function is set zero for all lags for which no estimate exists or the missing data is replaced by the already measured data of the intervall. Both procedures of course can not lead to correct autocorrelation functions or spectra. Maximum entropy methods can give the most unbiased estimates of the missing data and so lead to the "best possible" autocorrelation function/power spectra obtainable from such a limited data set.
APA, Harvard, Vancouver, ISO, and other styles
8

Tinga, Tiedo, Wilfried P. J. Visser, Wim B. de Wolf, and Michael J. Broomhead. "Integrated Lifing Analysis Tool for Gas Turbine Components." In ASME Turbo Expo 2000: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/2000-gt-0646.

Full text
Abstract:
A method to predict gas turbine component life based on analysis of engine performance is presented. Engine performance history is obtained from in-flight monitored engine parameters and flight conditions and downloaded for processing by a tool integrating a number of software tools and models. These subsequently include a comprehensive thermodynamical engine system model, heat transfer, thermal and mechanical load models, and finally, a life consumption model. Thermal and mechanical load distributions in the component as well as component life can be predicted. At this stage, the overall life prediction inaccuracy of the tool is dominated by the relatively high inaccuracy of the lifing model, and therefore, component life can only be predicted relative to a reference life. The tool is demonstrated with an analysis of the F100-PW-220 engine 3rd stage turbine rotor blade life consumption during a recorded RNLAF F-16 mission. Using the engine system model with a detailed control system, deterioration effects on engine performance were analyzed and the effect of engine deterioration on blade life consumption rate was determined. The tool has significant potential to enhance on-condition maintenance and optimize aircraft operational use.
APA, Harvard, Vancouver, ISO, and other styles
9

Hendraningrat, L. "Complex Fluid Mixtures Characterization of Gas Condensate Reservoir with High CO2: An Improved Gas Flow Assurance Analysis." In International Petroleum Technology Conference. IPTC, 2025. https://doi.org/10.2523/iptc-24854-ea.

Full text
Abstract:
Abstract Near-critical reservoirs such as gas condensate exhibit complex phase behavior due to the existence of a two-fluid system, comprising reservoir gas and liquid condensate. It will be more challenging when the fluid composition has complex mixture components such as naphthenic complexes, aromatic complexes, and contaminants. This paper presents a characterization of complex fluid mixtures of the gas condensate reservoir at an offshore field with very high CO2 and other contaminants content. Extensive PVT fluid experiments started from preliminary quality checks on the fluid samples, have been carried out. Complex fluid composition analyses were measured with 25 components including complex mixtures. The equilibrium gas composition was analyzed using the natural gas analyzer (NGA). Meanwhile, the equilibrium condensate was analyzed using high-temperature gas chromatography (HTGC), which gives detailed hydrocarbon compositions. Standard PVT experiments such as constant composition expansion (CCE), constant volume depletion (CVD), and fluid properties were measured and validated through the thermodynamic modeling equation of states (EOS). The EOS has been utilized to study the near-critical phase behavior of complex mixtures, emphasizing the complexity and wide-ranging volatility of gas condensates and reservoir crudes. A thermodynamical model EOS was developed using PVT software and achieved an acceptable match against all PVT experiments, including dew point pressure. An an improved analysis on gas flow assurance can be done by conducting thermodynamic modeling of solid precipitation. The predicted solid precipitation where only observed at very extremely low temperature and pressure that unlikely to occur in operating condition of this field. In conclusion, proper characterization of complex fluid mixture near-critical gas condensate reservoir fluid will strengthen the quality, assist engineers in gaining a better phase behavior understanding of complex fluid mixtures, and prepare field development plans with better depleting strategies, reservoir management, and flow assurance mitigation. This paper contributes to the broader understanding of phase behavior of gas condensate reservoir with high CO2 content and complex fluid mixtures and offers practical using thermodynamic modeling for improved understanding of fluid phase behavior and flow assurance issue. The results presented herein will establish a foundation for further research and development in this field, eventually underpinning the development of more efficient and sustainable extraction technologies.
APA, Harvard, Vancouver, ISO, and other styles
10

Ismailova, Jamilyam, Aibek Abdukarimov, Bagdat Mombekov, Dinara Delikesheva, Luis E. Zerpa, and Zhasulan Dairov. "A Comparative Evaluation of Thermodynamic Models for Prediction of Wax Deposition." In Abu Dhabi International Petroleum Exhibition & Conference. SPE, 2021. http://dx.doi.org/10.2118/207984-ms.

Full text
Abstract:
Abstract Wax deposition on inner surfaces of pipelines is a costly problem for the petroleum industry. This flow assurance problem is of particular interest during the production and transportation of waxy oils in cold environments. An understanding of known mechanisms and available thermodynamic models will be useful for the management and planning of mitigation strategies for wax deposition. This paper presents a critical review of wax prediction models used for estimation of wax deposition based on chemical hydrocarbon compositions and thermobaric condition. The comparative analysis is applied to highlight the effective mechanisms guiding the wax deposition, and how this knowledge can be used to model and provide solutions to reducing wax deposition issues. One group of thermodynamic models assume that the precipitated wax is a solid solution. These models are divided into two categories: ideal (Erickson and Pedersen models) and non-ideal solutions (Won and Coutinho models). In the other group of models, the wax phase consists of many solid phases (Lira-Galeana model). The authors summarized the limitations of the models, evaluated, and identified ways to represent the overview of existing thermodynamical models for predicting wax precipitation. Within the strong demand from industry, the results of this manuscript can aid to aspire engineers and researcher.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Thermodynamical analysis"

1

Sridhar and Dunn. L51793 The Effects of Water Chemistry on Internal Corrosion of Steel Pipelines. Pipeline Research Council International, Inc. (PRCI), 2000. http://dx.doi.org/10.55274/r0010425.

Full text
Abstract:
The ability to safely transport wet, untreated natural gases through pipelines offshore or at other inaccessible locations is an important factor in the development of new gas fields. The internal corrosion rate of steel pipelines varies in a complex way with the gas composition, specifically CO2 , O2 , and H2 S, and condensed water chemistry. Estimating the corrosion rate of steel at inaccessible locations from the analysis of the gas and water composition from an accessible location will enable a better determination of the need for corrosion inhibitors. Quantitative understanding of the corrosion rate of steel under these conditions will be key to an accurate risk assessment of pipelines from internal corrosion. Previous work examined the effects of gas composition and slow liquid flow conditions on corrosion of steel. A parametric equation was developed that essentially reflected the deleterious effects of CO2 and O2 , and the beneficial effect of H2S on corrosion (Lyle, 1997). While this study provided important information regarding the deleterious effect of oxygen in the gas phase, the effects of condensed water composition, especially scale-forming species such as calcium and magnesium, were not examined. Furthermore, a better thermodynamic and kinetic understanding of the effects of the gas and liquid phase composition was needed. The present project, while an extension of the previous project, breaks important new ground: (i) the water chemistry typically found in pipelines is included in the tests; (ii) the scale and corrosion product formation is examined using a thermodynamic speciation software; (iii) surface analysis of the corroded samples is performed using laser Raman spectroscopy in order to confirm the thermodynamic model prediction; and (iv) electrochemical tests are conducted to understand the corrosion kinetics. A discussion of the general literature on internal corrosion is presented in the next section, followed by a summary of results from previous SwRI projects in this area. The thermodynamic approach and results are presented in Chapter 2. The experimental results are presented in Chapters 3 and 4, respectively, along with a discussion of the results in terms of thermodynamic and kinetic framework. Chapter 5 summarizes the results of this project and provides recommendations for further investigations. Details of the thermodynamic calculations, electrochemical experimental results, and analyses of the corrosion products are presented in the appendices.
APA, Harvard, Vancouver, ISO, and other styles
2

Yoshimura, A. S. Thermodynamic Cycle Analysis Program (TCAP). Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/481552.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Gleeson, Brian, and Dan Sordelet. Acquisition of Thermal Analysis Instrumentation for the Thermodynamic and Mechanical Analyses of Advanced Materials. Defense Technical Information Center, 2007. http://dx.doi.org/10.21236/ada589790.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Carlson, Matthew D., Timothy A. Shedd, and Gerald E. Kashmerick. Thermodynamic Analysis and Comparison of the K6 Cycle. SAE International, 2011. http://dx.doi.org/10.4271/2011-32-0600.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

P.F. Baldasara, J.E. Reynolds, G.W. Charache, et al. Thermodynamic analysis of Thermophotovoltaic Efficiency and Power Density Tradeoffs. Office of Scientific and Technical Information (OSTI), 2000. http://dx.doi.org/10.2172/821296.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Wruck, D. A., and C. E. A. Palmer. Analysis of elevated temperature data for thermodynamic properties of selected radionuclides. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/670068.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Fletcher, D. THERMODYNAMIC AND MASS BALANCE ANALYSIS OF EXPANSIVE PHASE PRECIPITATION IN SALTSTONE. Office of Scientific and Technical Information (OSTI), 2008. http://dx.doi.org/10.2172/929104.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Denham, M. THERMODYNAMIC AND MASS BALANCE ANALYSIS OF EXPANSIVE PHASE PRECIPITATION IN SALTSTONE. Office of Scientific and Technical Information (OSTI), 2008. http://dx.doi.org/10.2172/935435.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Leibowitz, L., and R. Blomquist. Thermodynamic Analysis of Phase Equilibria in the Iron-Uranium-Zirconium System. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10198466.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Chang, I., and J. R. Williams. Thermodynamic analysis of a geopressured geothermal hybrid wellhead power system. Final report. Office of Scientific and Technical Information (OSTI), 1985. http://dx.doi.org/10.2172/5860645.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!