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Relevant bibliographies by topics / Correlations Specific volume Internal energy R134a

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Academic literature on the topic 'Correlations Specific volume Internal energy R134a'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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Journal articles on the topic "Correlations Specific volume Internal energy R134a"

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Mumah, S. N., and H.F. Nwafulugo F.U. &. Alexander S. Akande. "SPECIFIC VOLUME AND INTERNAL ENERGY CORRELATIONS FOR SATURATED AND SUPERHEATED R-134a FOR VARIOUS TEMPERATURES AND PRESSURES." Nigerian Journal of Renewable Energy Research 1, no. 3 (2025): 132–49. https://doi.org/10.5281/zenodo.15031502.

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<em>Accurate data correlations are fundamental for the effective design, simulation, and optimization of chemical processes. However, generating precise correlations, particularly for complex systems involving multiple independent variables, poses significant challenges. This study focuses on the critical need to </em><em>to generated accurate correlations for saturated and superheated refrigerant-134a at various temperatures and pressures</em><em>, </em><em>The properties considered are specific volume and internal energy</em><strong><em>.</em></strong><em> The Proportional Nodes method has p

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Mumah, S. N., and H.F. Nwafulugo F.U. &. Alexander S. Akande. "SATURATED PROPERTIES CORRELATIONS FOR STEAM AND VAPOUR OVER SATURATED ICE." Nigerian Journal of Renewable Energy Research 1, no. 3 (2025): 97–106. https://doi.org/10.5281/zenodo.15031464.

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<em>Accurate data correlations are fundamental for the effective design, simulation, and optimization of chemical processes. However, generating precise correlations, particularly for complex systems involving multiple independent variables, poses significant challenges. This study focuses on the generation of accurate correlations for saturated properties of steam and water vapour over ice. To validate the correlations, all the values generated were compared with the EES data. All showed coefficient of determination (R<sup>2</sup>) higher or equal to 0.9998. The correlations therefore demonst

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Demydiuk, F., M. Solar, H. Meyer, O. Benzerara, W. Paul, and J. Baschnagel. "Role of torsional potential in chain conformation, thermodynamics, and glass formation of simulated polybutadiene melts." Journal of Chemical Physics 156, no. 23 (2022): 234902. http://dx.doi.org/10.1063/5.0094536.

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For polymer chains, the torsional potential is an important intramolecular energy influencing chain flexibility and segmental dynamics. Through molecular dynamics simulations of an atomistic model for melts of cis– trans-1,4-polybutadiene (PBD), we explore the effect of the torsions on conformational properties (bond vector correlations and mean-square internal distances), fundamental thermodynamic quantities (density, compressibility, internal energy, and specific heat), and glass transition temperature Tg. This is achieved by systematically reducing the strength of the torsional potential, s

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Mitu, Maria, Codina Movileanu, and Venera Giurcan. "The Laminar Burning Velocities of Stoichiometric Methane–Air Mixture from Closed Vessels Measurements." Energies 15, no. 14 (2022): 5058. http://dx.doi.org/10.3390/en15145058.

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The present work aims to evaluate the performance of the constant-volume method by several sets of experiments carried out in three different closed vessels (a sphere and two cylinders) analyzing the obtained results in order to obtain accurate laminar burning velocities. Accurate laminar burning velocities can be used in the development of computational fluid dynamics models in order to design new internal combustion engines with a higher efficiency and lower fuel consumption leading to a lower degree of environmental pollution. The pressure-time histories obtained at various initial pressure

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Grenda, Tim, and Arno Kwade. "Study of Electrochemical Characteristics of Differently Produced Nickel-Rich Cathodes." ECS Meeting Abstracts MA2024-02, no. 7 (2024): 1043. https://doi.org/10.1149/ma2024-0271043mtgabs.

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Lithium-ion batteries stand as the forefront technology in energy storage. Significant endeavors have been dedicated to enhancing the energy density of lithium-ion batteries, primarily by incorporating high-capacity nickel-rich cathode active materials like NCM831205 or even higher nickel contents [1]. Nevertheless, an elevated nickel content result in reduced structural and thermal stabilities, increased reactivity with the electrolyte, and heightened vulnerability to environmental influences due to the formation of surface films [2–4]. To mitigate these effects, specialized processing condit

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AKHMEDOVA-AZIZOVA, Lala Alisattar, Mirvari Asif MAMMEDOVA, Ilmutdun Magomedovich ABDULAGATOV, Gachay Najaf NAJAFOV, and Misirxan Atduxan TALYBOV. "EXPERIMENTAL STUDY OF THERMODYNAMIC PROPERTIES OF BIOFUEL COMPONENTS." Energy sustainability: risks and decision making 2, no. 1 (2024). http://dx.doi.org/10.61413/vcmj8647.

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The density () and speed of sound (u) of two main components of biofuels, methyl laurate and methyl stearate, were measured at temperatures from (283 to 353) K and from (313 to 353) K at atmospheric pressure, respectively. An Anton Paar DSA 5000 М sound-speed analyzer, has been used to simultaneously measurements of the density and speed of sound of the methyl laurate and methyl stearate as the primary components of biodiesel fuel. The measured values of density and speed of sound were used to calculate other derived thermodynamic properties such as adiabatic coefficient of bulk compressibili

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Ruiz-Díaz, Carlos Mauricio, Brayan Quispe-Suarez, and Octavio Andrés González-Estrada. "Two-phase oil and water flow pattern identification in vertical pipes applying long short-term memory networks." Emergent Materials, February 12, 2024. http://dx.doi.org/10.1007/s42247-024-00631-2.

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AbstractAccurate biphasic flow pattern recognition is essential in the design of coatings for the oil and gas sector because it enables engineers to create materials that are tailored to specific flow conditions. This results in enhanced corrosion protection, erosion resistance, flow efficiency, and overall performance of equipment and infrastructure in the challenging environments of the oil and gas industry. The development of flow maps has been based on empirical correlations that incorporate characteristics such as superficial velocities, volume fractions, and physical properties such as t

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Conference papers on the topic "Correlations Specific volume Internal energy R134a"

1

Carmona, Mauricio, Gabriel Caicedo, Humberto Gómez Vega, and Antonio Bula. "Reduced Model for a Thermal Analysis of a Flat Plate Solar Collector With Thermal Energy Storage Using Phase Change Material (PCM)." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-51865.

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In conventional solar water heaters, the thermal energy storage is accomplished by increasing the sensible heat in a fluid. Therefore, the accumulation capacity of sensible heat is proportional to the mass storage and the increase of temperature, so that an increase in the requirements involves a bigger tank volume. Phase change materials (PCM) stored energy at constant temperature (or at least in a fairly narrow range of temperature) while the phase change is produced, they are presented as an alternative to compensate the solar heat supply periods and the thermal demand with a better heat ac

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