Relevant bibliographies by topics / Reversible energy flows

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Reversible energy flows'

Author: Grafiati
Published: 1 June 2024
Last updated: 31 July 2025

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Journal articles on the topic "Reversible energy flows"

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Zhao, Yang, Chi-Chiu Ma, Lai-Ho Wong, et al. "Quasi-Reversible Energy Flows in Carbon-Nanotube Oscillators." Journal of Computational and Theoretical Nanoscience 3, no. 5 (2006): 852–56. http://dx.doi.org/10.1166/jctn.2006.027.

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Devine, Sean. "Algorithmic Entropy and Landauer’s Principle Link Microscopic System Behaviour to the Thermodynamic Entropy." Entropy 20, no. 10 (2018): 798. http://dx.doi.org/10.3390/e20100798.

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Algorithmic information theory in conjunction with Landauer’s principle can quantify the cost of maintaining a reversible real-world computational system distant from equilibrium. As computational bits are conserved in an isolated reversible system, bit flows can be used to track the way a highly improbable configuration trends toward a highly probable equilibrium configuration. In an isolated reversible system, all microstates within a thermodynamic macrostate have the same algorithmic entropy. However, from a thermodynamic perspective, when these bits primarily specify stored energy states,
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Cartas-Fuentevilla, R., та A. Olvera-Santamaria. "Deforming the theory λϕ4 along the parameters and fields gradient flows". International Journal of Modern Physics A 30, № 02 (2015): 1550008. http://dx.doi.org/10.1142/s0217751x15500086.

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Considering the action for the theory λϕ4 for a massive scalar bosonic field as an entropy functional on the space of coupling constants and on the space of fields, we determine the gradient flows for the scalar field, the mass and the self-interaction parameter. When the flow parameter is identified with the energy scale, we show that there exist phase transitions between unbroken exact symmetry scenarios and spontaneous symmetry breaking scenarios at increasingly high energies. Since a nonlinear heat equation drives the scalar field through a reaction-diffusion process, in general the flows
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Attou, A., and L. Bolle. "Integral formulation of balance equations for two-phase flow through a sudden enlargement Part 1: Basic approach." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 211, no. 5 (1997): 387–97. http://dx.doi.org/10.1243/0954406971522132.

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A general expression of irreversible losses related to two-phase flows through a sudden enlargement is derived from basic balance equations (mass, momentum and energy). The need to take into account void fraction and quality changes is emphasized for some one-fluid flows. From a comparison with several experimental results, it is concluded that a void fraction decrease downstream of the enlargement must be considered in order to predict satisfactorily pressure variations on the basis of the momentum balance procedure. When expressed in the form of a fraction of reversible pressure recovery, di
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Salter, S. H., J. R. M. Taylor, and N. J. Caldwell. "Power conversion mechanisms for wave energy." Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 216, no. 1 (2002): 1–27. http://dx.doi.org/10.1243/147509002320382103.

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It is easy to make a device that will respond vigorously to the action of sea waves. Indeed, it is quite hard to make one that will not. However, the conversion of the slow, random, reversing energy flows with very high extreme values into phase-locked synchronous electricity with power quality acceptable to a utility network is very much harder. This paper describes a range of different control strategies of varying degrees of sophistication and then describes possible conversion equipment for high-pressure oil and water and low-pressure air. Like many renewable energy sources, waves would be
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Devine, Sean. "Landauer’s Principle a Consequence of Bit Flows, Given Stirling’s Approximation." Entropy 23, no. 10 (2021): 1288. http://dx.doi.org/10.3390/e23101288.

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According to Landauer’s principle, at least kBln2T Joules are needed to erase a bit that stores information in a thermodynamic system at temperature T. However, the arguments for the principle rely on a regime where the equipartition principle holds. This paper, by exploring a simple model of a thermodynamic system using algorithmic information theory, shows the energy cost of transferring a bit, or restoring the original state, is kBln2T Joules for a reversible system. The principle is a direct consequence of the statistics required to allocate energy between stored energy states and thermal
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Oleh, Pihnastyi, Ivanovska Olha, and O. Sobol M. "Synthesis of the algorithm for the flow parameters optimal control of the reversible conveyor." Radio Electronics, Computer Science, Control 2022(2) (July 4, 2022): 210–21. https://doi.org/10.5281/zenodo.6941626.

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Context.  The problem of optimal control of flow parameters of a conveyor-type transport system containing sections with reversible conveyors is considered. The object of the stady was an analytical model of a reversible transport conveyor for synthesizing an algorithm for optimal control of the flow parameters of a reversible transport conveyor.   Objective.  The goal of the work is to develop a synthesis technique for an algorithm for optimal control of the flow parameters of a reversible transport conveyor based on an analytical model of a conveyor section containing a transp
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Glagolev, Vadim V., Viktor V. Kozlov, and Aleksey A. Markin. "Conditions for the reversible deformation of planar bodies weakened by a cut." Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mekhanika, no. 94 (2025): 136–48. https://doi.org/10.17223/19988621/94/11.

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The body deformation in terms of a planar layer weakened by a cut is considered. As the radius of curvature of the cut tends to zero at the maximum free-energy point, the cut transforms into a mathematical cut. The use of classical conditions for determining the elastic limit leads to the formation of plastic regions under an arbitrarily small external load. To solve this problem, the free energy flow through a cutout arc section is introduced as the product of the free energy density at the point of its maximum and a linear parameter. The free energy flow is represented by the sum of the volu
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Peters, Michael H. "Nonequilibrium Entropy Conservation and the Transport Equations of Mass, Momentum, and Energy." Energies 14, no. 8 (2021): 2196. http://dx.doi.org/10.3390/en14082196.

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Nonequilibrium statistical mechanics or molecular theory has put the transport equations of mass, momentum and energy on a firm or rigorous theoretical foundation that has played a critical role in their use and applications. Here, it is shown that those methods can be extended to nonequilibrium entropy conservation. As already known, the “closure” of the transport equations leads to the theory underlying the phenomenological laws, including Fick’s Law of Diffusion, Newton’s Law of Viscosity, and Fourier’s Law of Heat. In the case of entropy, closure leads to the relationship of entropy flux t
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Tiwari, Ravi Nath, Alberto Traverso, and Federico Reggio. "Performance assessment of a reversible Tesla machine." E3S Web of Conferences 414 (2023): 03002. http://dx.doi.org/10.1051/e3sconf/202341403002.

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It is well known that bladeless or Tesla turbomachinery, which was invented by Nikola Tesla in 1913, has several distinct features, such as reversibility of operation, which includes expander as well as compressor operation, just by reversing the rotational speed, provided that the statoric channels are purposely designed. Despite their potential application to a variety of fields, such as energy harvesting, automotive, light aircraft, and food processing, especially for low volumetric flows, Tesla machines have not found yet a specific market niche. In fact, at small size, it is estimated tha
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Dissertations / Theses on the topic "Reversible energy flows"

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Merhy, Ghimar. "Contribution à la modélisation, la commande et l'optimisation des flux énergétiques : application à la gestion de recharge des véhicules électriques." Electronic Thesis or Diss., Amiens, 2020. http://www.theses.fr/2020AMIE0042.

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Vu que le secteur du transport est directement impliqué dans les émissions gigantesques de gaz à effet de serre et la pollution mondiale globale, l'électrification des véhicules a récemment surgi comme étant une solution efficace aux catastrophes environnementales contemporaines. Face à l'impossibilité de stockage d'électricité en grandes quantités, et en vue d'ajuster en permanence l'offre d'électricité à la demande, il faudrait développer des solutions d'adaptation où les batteries des véhicules électriques (VE) prendraient en charge le stockage et la restitution de l'énergie. Cette étude se
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Flack, Kyle M. "Two approaches to green chemistry in industrially driven processes: aluminum tert-butoxide as a rate enhancing Meerwein-Ponndorf-Verley reduction catalyst applied to the technological transfer from batch to continuous flow and structural modifications of functionalized trialkylsilylamines as energy efficient carbon dioxide capture solvents." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/44802.

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Green chemistry principles have been applied to the enhancement of two industrial chemistry problems. An industrially used reaction to form alcohols from aldehydes and ketones, the Meerwein-Ponndorf-Verley reduction, was improved by introducing a new catalyst Al(OtBu)₃. Due to the lower state of aggregation of this catalyst versus the conventional Al(OiPr)₃ catalyst, reduction rates were found to be faster in both pure iPrOH and mixed solvent systems for three model compounds: benzaldehyde, acetophenone, and a complex, chiral ketone, (S)-CMK. This allowed for the successful implementation of t
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Kos, Cristoffer, and Kristoffer Hermansson. "BUILDING AND SIMULATING DYNAMIC MODELS OF DISTRICT HEATING NETWORKS WITH MODELICA : Using Matlab to process data and automate modelling and simulation." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-36107.

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District heating systems are common in Nordic countries today and accounts for a great portion of the heat demand. In Sweden, total district heating end use in the last years has been around 50 TWh and district heating accounts for roughly 50 % of the total heat demand. Suppliers of district heating must balance demand and supply, often in large and complex networks. Heat propagation can be in the range of hours and it is not known in detail how the heat will propagate during transient conditions. A dynamic model has been developed in OpenModelica and a method for modeling, handling data, simu
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Рєзва, Ксенія Сергіївна. "Удосконалення проточних частин високонапірних оборотних гідромашин на основі чисельного моделювання їх гідродинамічних характеристик". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/40009.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.05.17 – гідравлічні машини і гідропневмоагрегати. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2019 р. Дисертацію присвячено вирішенню науково-практичної задачі удосконалення проточних частин високонапірних оборотних гідромашин за рахунок розробки методів розрахунку та аналізу їх гідродинамічних характеристик. На підставі розгляду тенденцій розвитку гідроенергетики України, з урахуванням ролі високонапірних оборотних гідромашин в об'єднаній енергетичній системі, відмічен
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Рєзва, Ксенія Сергіївна. "Удосконалення проточних частин високонапірних оборотних гідромашин на основі чисельного моделювання їх гідродинамічних характеристик". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/40011.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.05.17 – гідравлічні машини і гідропневмоагрегати. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2019 р. Дисертацію присвячено вирішенню науково-практичної задачі удосконалення проточних частин високонапірних оборотних гідромашин за рахунок розробки методів розрахунку та аналізу їх гідродинамічних характеристик. На підставі розгляду тенденцій розвитку гідроенергетики України, з урахуванням ролі високонапірних оборотних гідромашин в об'єднаній енергетичній системі, відміче
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Books on the topic "Reversible energy flows"

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Tiwari, Sandip. Information mechanics. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198759874.003.0001.

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Information is physical, so its manipulation through devices is subject to its own mechanics: the science and engineering of behavioral description, which is intermingled with classical, quantum and statistical mechanics principles. This chapter is a unification of these principles and physical laws with their implications for nanoscale. Ideas of state machines, Church-Turing thesis and its embodiment in various state machines, probabilities, Bayesian principles and entropy in its various forms (Shannon, Boltzmann, von Neumann, algorithmic) with an eye on the principle of maximum entropy as an
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Book chapters on the topic "Reversible energy flows"

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Singh, Gurwinder, Amandeep Singh Oberoi, Harmesh K. Kansal, and Amrinder Pal Singh. "Electrochemical Hydrogen Storage Within a Modified Reversible PEM Fuel Cell and Its Performance Analysis with Interdigitated and Spiral Micro Flow Channels." In Green Energy and Technology. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-2279-6_14.

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Metcalfe, Ian S. "The energy balance and temperature effects." In Chemical Reaction Engineering. Oxford University Press, 1997. http://dx.doi.org/10.1093/hesc/9780198565383.003.0009.

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This chapter demonstrates how reactors need not be isothermal. It looks at how reaction rate depends upon temperature for different classes of reaction, including irreversible reactions, reversible endothermic reactions, and reversible exothermic reactions. The chapter then formulates the energy balance for given reactors and uses this to investigate the variation of temperature and therefore reaction rate with time or position in the reactor. This, in turn, can be used to calculate reactor volumes and residence times for a given duty. The chapter also considers steady-state multiplicity in co
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Maczek, Andrew, and Anthony Meijer. "Applications of the molecular partition function." In Statistical Thermodynamics. Oxford University Press, 2017. http://dx.doi.org/10.1093/hesc/9780198777489.003.0003.

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This chapter explores how to use the molecular partition function to calculate internal energy and entropy. It highlights the link between the molecular partition function and thermodynamics. Additionally, the chapter notes the relation of β to temperature. It explains the link between the statistical weight of the predominant configuration and thermodynamic entropy. The chapter uses equation diagrams to explain modifications on molecular and internal energies. As the chapter shows, the spacing between successive energy states does not change on heating and stays at a constant volume, which is
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Peters, Luanne L., and Jane E. Barker. "Spontaneous and Targeted Mutations in Erythrocyte Membrane Skeleton Genes: Mouse Models of Hereditary Spherocytosis." In Hematopoiesis. Oxford University PressNew York, NY, 2001. http://dx.doi.org/10.1093/oso/9780195124507.003.0051.

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Abstract The red cell outer limiting membrane is critical to all aspects of red cell function. The membrane responds to extracellular signals during erythropoiesis, mediates iron uptake, facilitates carbon dioxide transport, regulates red cell cation and water content, and provides a negatively charged exterior that allows red cells to flow through the circulation without adhering to the endothelial layer of the vasculature. Evidence suggests that the red cell membrane also regulates energy metabolism by reversibly binding the glycolytic enzymes glyceraldehyde 3-phosphate dehydrogenase, aldola
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Shklyaev, Oleg E., Raj Kumar Manna, Abhrajit Laskar, et al. "Autonomous Photothermally-driven Fluid Pumping and Particle Transport and Assembly." In Out-of-equilibrium Soft Matter. The Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/9781839169465-00296.

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We review the design of photothermally-driven fluid micropumps that can regulate the assembly and segregation of microparticles in solution. Externally imposed light represents particularly useful energy input since the light source (further enabled with a mask) is easily moved and thus can regulate spatially and temporally coordinated dynamics. Ultraviolet (UV) light sources are used to illuminate regions of a fluid-filled chamber that results in fluid flow throughout the chamber. The light-driven pumping occurs via three different mechanisms: thermal buoyancy, solutal buoyancy, and diffusioo
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Williams, R. J. P., and J. J. R. Frausto Da Silva. "Early cellular organisation in anaerobes." In The Natural Selection of the Chemical Elements. Oxford University PressOxford, 1996. http://dx.doi.org/10.1093/oso/9780198558439.003.0011.

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Abstract Chapter 10 described which elements, compounds and reaction sequences have been selected in order to generate a living system. This was but a descriptive analysis of connected but uncoordinated rates of uptake and reactions in pathways, although it did also show the need for energy coupled to element incorporation. We stressed that the very fact that the chemistry was energised made it more probable that degradation would occur rather than synthesis. Since survival must depend on driving synthesis more efficiently than degradation, a living system cannot just push energy into all synt
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Conference papers on the topic "Reversible energy flows"

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Torricelli, Noemi, Lisa Branchini, Andrea De Pascale, Olivier Dumont, and Vincent Lemort. "Optimal Management of Reversible Heat Pump/ORC Carnot Batteries." In ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/gt2022-82509.

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Abstract In the view of reducing the global greenhouse gas emissions it becomes fundamental to exploit the renewable energy sources at their maximum potential by developing effective strategies for their flexible use. Among the available solutions to realize these strategies are the electric energy storages including the innovative Pumped Thermal Energy Storage technology (included in the Carnot battery concept). This can become very interesting in these applications where different energy flows must be handled (both electric and thermal), thanks to the possibility of adding the contribution o
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Ancona, Maria Alessandra, Michele Bianchi, Lisa Branchini, et al. "Preliminary Investigation of a Combined Heat and Power Reversible-Brayton System Integrated With a Renewable Power Source." In ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/gt2023-103125.

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Abstract Pumped Thermal Electricity Storage (PTES) technology is drawing increasing attention as a promising solution to limit the mismatch between the electric demand and the renewable production. In this context, a preliminary model of a reversible Brayton PTES is developed on a commercial software to finalize a comprehensive performance investigation. In the proposed arrangement, the system allows to store the surplus of electric renewable production, by converting it into heat, through an inverse cycle, and then to convert it back into electric energy when needed, through a direct cycle. A
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Lyall, M. Eric, Paul I. King, and Rolf Sondergaard. "Endwall Loss and Mixing Analysis of a High Lift Low Pressure Turbine Cascade." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-68709.

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A high lift LPT profile designated L2A is used as a test bed for studying the origin of endwall mixing loss and the role of vortical structures in loss development. It is shown analytically and experimentally that the mixing forces within the endwall wake can be decoupled into either mean flow or turbulent forces, and can be further classified as either reversible or irreversible. Among the irreversible forces, mean flow shear is negligible compared to turbulent shear, suggesting that turbulence dissipation is the dominant cause of loss generation. As a result, the mean flow components of the
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Cheng, Li, Chao Liu, Jiren Zhou, Fangping Tang, and Yan Jin. "Three Dimensional Numerical Simulation of Flow Field Inside a Reversible Pumping Station With Symmetric Aerofoil Blade." In ASME 2008 Fluids Engineering Division Summer Meeting collocated with the Heat Transfer, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/fedsm2008-55001.

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The pumping station with symmetric aerofoil can achieve reversible pumping function. It can keep high reversible efficiency and its flow coefficient is approaching to normal one. At same time, it has the simple structure and is easy to operate and maintain. The flow inside reversible pumping station is very complex and dominated by three dimensional viscous effects. With the rapid progress of computational fluid dynamics, CFD has become an important tool to help to make full understanding of flow. In order to recognize the characteristic of pumping station, the control volume method is used to
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Parisi, Simone, and Fredrik Haglind. "Numerical Analysis of Reversible Radial-Flow Turbomachinery for Energy Storage Applications." In ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/gt2023-101441.

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Abstract Decarbonization of energy systems is expected to require significant amounts of energy storage. Among the different technologies studied, thermo-mechanical storage is being considered for long duration storage due to its low cost and limited usage of critical materials. Based on the experience of pumped hydro plants, significant cost savings can be achieved if a single stage reversible compressor-turbine is used for both the charging and discharging of the storage. Due to the modest (< 4.5) pressure ratio involved, low temperature adiabatic compressed air energy storage and pum
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Winkler, Wolfgang. "Fuel Cell Hybrids, Their Thermodynamics and Sustainable Development." In ASME 2005 3rd International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2005. http://dx.doi.org/10.1115/fuelcell2005-74157.

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The increasing demand on primary energy and the increasing concern on climatic change demand immediately a sustainable development, but still there remain open questions regarding its technical realisation. The second law of thermodynamics is a very simple but efficient way to define the principle design rules of sustainable technologies in minimising the irreversible entropy production. The ideal, but real process chain is defined by a still reversible structure or logic of the process chain—the reversible reference process chain—but consisting of real components with an irreversible entropy
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Hedayat Mofidi, Seyyed Ali, and Kent S. Udell. "Study of Heat and Mass Transfer in MgCl2/NH3 Thermo-Chemical Batteries." In ASME 2016 10th International Conference on Energy Sustainability collocated with the ASME 2016 Power Conference and the ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/es2016-59099.

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Intermittency of sustainable energy or waste heat availability calls for energy storage systems such as thermal batteries. Thermo-chemical batteries are particularly appealing for energy storage applications due to their high energy densities and ability to store thermal energy as chemical energy for long periods of time without any energy loss. Thermo-chemical batteries based on a reversible solid-gas (MgCl2 - NH3) reactions and NH3 liquid-gas phase change are of specific interest since the kinetics of absorption are fast and the heat transfer rates for liquid — vapor phase change are high. T
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Tanaka, Takaharu. "An Investigation on Energy Transfer Mechanism Caused in Rotating Flow Passage of Turbomachinery and Practical Performance Characteristic Curve." In ASME 8th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2006. http://dx.doi.org/10.1115/esda2006-95441.

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Hydraulic energy is constructed from two different kinds hydraulic energies. One is the singled irreversible kinetic hydraulic energy that acts horizontal direction. It produces mass weight flow rate. The other is the un-kinetic reversible potential energy. Potential energy is stored on the fluid particle in the form of coupled (or twined) real and imaginary energies. Typical of real energy is potential energy, which is equivalent to pump and water turbine heads. It is caused by the real gravitational acceleration and directs vertical downward. Real potential head is balanced with the imaginar
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Patil, Abhay, Kelsi Katcher, Tim Allison, and Scot Cummings. "Evaluation and CFD Based Improvements of Reactive Reversible Blade Turbine." In ASME 2024 18th International Conference on Energy Sustainability collocated with the ASME 2024 Heat Transfer Summer Conference and the ASME 2024 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/es2024-131428.

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Abstract A Reactive Reversible Blade Turbine (RRBT) is a cross-flow type turbine design with multiple movable blades that pivot around their local axes to hydraulically balance the blade forces while passing through the negative drag portion of the flow regime. The RRBT allows the blades to react to the negative drag and freely rotate in a way that hydraulically balances the pressure loading. The blades “slice” through the water in a reverse motion, returning to a neutral position and resting against a stop, resulting in reduced resistance on the opposite side of the turbine shaft during rotat
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Yazji, Jalal, Hamza Zaidi, Luke Thomas Torres, Christopher Leroy, Alicia Keow, and Zheng Chen. "A Novel Buoyancy Control Device Using Reversible PEM Fuel Cells." In ASME 2019 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/dscc2019-9155.

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Abstract Buoyancy control devices are essential to maneuver ROV effectively underwater. Many approaches have been used to tackle this problem such as compressed air ballast which can take in water and eject it using compressed air and the use of high-density foam plates that can be added or removed to increase or decrease the buoyancy. Presented in this paper is a novel approach for buoyancy control, which utilizes the electrolysis and reverse electrolysis capabilities of a reversible polymer electrolyte membrane (PEM) fuel cell to adjust the volume of a small vehicle, and change its depth. Ma
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