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41 articles for “entropy”
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Non-Equilibrium Entropy Pathways in Complex Fluids: A New Framework for Thermodynamic Irreversibility
Abstract: When a system is driven, sheared, stretched, heated, or pressurized under varying thermodynamic gradients and kept away from equilibrium, ultra-microscopic rearrangements begin to occur, indicating continuous energy dissipation. Along these energy pathways, the microstructures of complex fluids undergo multiple stages of reforming and rearrangement. In complex fluids composed of identical compounds (chemically identical species), these interactions play a supportive role and reduce the overall entropy of the system. However, when …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 11, Issue 2, 2025 · pp. 1–7 Read article
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Entropy and Efficiency: Thermodynamic Insights into Sustainable Energy Technologies
Abstract: The transition toward sustainable energy systems requires a deeper understanding of the thermodynamic principles that govern energy conversion and utilization. Entropy and efficiency are central to this discussion, as they define the limits of performance and highlight the irreversibility inherent in real processes. This paper examines the role of entropy generation in renewable energy technologies, including solar photovoltaics, wind turbines, bioenergy, and advanced energy storage systems. By applying exergy analysis, …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 12, Issue 1, 2026 · pp. 17–23 Read article
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Entropy-Based Damage Accumulation in Tribological Systems: A Comprehensive Review
Abstract: This paper reviews classical wear models and entropy-based degradation approaches used for predicting failure in tribological systems. Various wear models, thermodynamic frameworks, and applications of the Degradation Entropy Generation (DEG) theorem are discussed. Friction, which is the primary source of heat generation in tribological contacts, is responsible for material degradation through a variety of irreversible processes. While classical wear approaches have been widely used for wear prediction and life estimation, …
Published in International Journal of Mechanics and Design · Vol. 12, Issue 1, 2026 · pp. 1–12 Read article
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Multi-class Fault Diagnosis of Rolling Element Bearing Based on Empirical Mode Decomposition and Entropy Features
Abstract: Rolling element bearings are one of the most commonly used machine elements in engineering industry. Fault detection and diagnosis of rolling element bearings is essential for prevention of malfunction and failure during operation. The present work deals with rolling element bearing fault diagnosis by using Support Vector Machine (SVM) and Artificial Neural Network (ANN). Four types of bearing conditions are considered in the present analysis: inner race fault (IR), outer …
Published in International Journal of Manufacturing and Materials Processing · Vol. 2, Issue 1, 2016 · pp. 01–10 Read article
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Thermodynamic and Kinetic Characterization of Aluminum Corrosion and Inhibition Adsorption of Vernonia Amygdalina Fruit Extract IN 0.5N H2SO4
Abstract: Anti-corrosive efficacy of ethanolic extract of Vernonia amygdalina fruit extract on corrosion of aluminum in 0.5N H2SO4 acidic solution was explored by mass loss measurement at rise in temperature between 303-343 K for 24 hours immersion period. The I.E. (η%) has been noticed prominently high (62.92%) at concentration 0.45% at 303 K. An inhibitor adsorption on the surface aluminum have been found to be best fitted Langmuir adsorption isotherm. It …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 9, Issue 1, 2023 · pp. 20–27 Read article
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Effect of Benzene Ring on Thermodynamic Parameters of Three Mono Azo Disperse Dyes on Nylon Fabric (Sudan I, Ii And Iv)
Abstract: In this study, three dyes - Sudan I, Sudan II, and Sudan IV - were tested for their performance on nylon fabric at different temperatures (50oC, 70oC, and 100oC). The thermodynamic properties of the dyes, including the partition coefficient (K), percentage dye exhaustion (%E), standard enthalpy change, standard affinity change, and standard change in entropy, were examined. The findings showed that the values of the thermodynamic parameters for the dyes …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 9, Issue 1, 2023 · pp. 01–06 Read article
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Temperature-Dependent Acoustic and Thermodynamic Investigation of Molecular Interactions in the 1-Propanol–n-Hexane Binary Mixture
Abstract: The present study investigates the molecular interactions and thermophysical behavior of the binary mixture comprising 1-propanol and n-hexane over the temperature range of 288.15–318.15K. The experimental determination of density (ρ), viscosity (η), and ultrasonic velocity (u) was carried out over the entire composition range, and the measured data were utilized to evaluate several acoustical and thermodynamic parameters, including the Van der Waals constant, relaxation strength, acoustic impedance, Rao’s constant, Wada’s …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 12, Issue 2, 2026 · pp. 16–33 Read article
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A Comprehensive Review of Classical Thermodynamics:Principles, Laws, and Applications
Abstract: Classical thermodynamics, a fundamental branch of physics and engineering, provides a macroscopicframework for understanding energy, work, and heat interactions in physical systems. This reviewcomprehensively examines the principles, laws, and practical applications of classicalthermodynamics, emphasizing its enduring relevance in modern science and engineering. Beginningwith the foundational concepts of system, surroundings, state, and equilibrium, the study explores theformulation and significance of the four laws of thermodynamics. The Zeroth Law establishes the basisfor …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 12, Issue 1, 2026 · pp. 19–26 Read article
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Advances and Emerging Trends in Classical and Modern Thermodynamics.
Abstract: Thermodynamics, as a foundational discipline of physical science, has continually evolved from its classical roots to modern, interdisciplinary applications. Classical thermodynamics established the laws governing energy, entropy, and equilibrium, providing the framework for analyzing heat engines, refrigeration cycles, and chemical processes. Recent advances have expanded these principles into new domains, integrating statistical mechanics, quantum theory, and non‑equilibrium systems. Emerging trends highlight the role of thermodynamics in nanoscale and quantum technologies, …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 12, Issue 1, 2026 · pp. 1–8 Read article
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Simplified Models for Some Thermodynamic Properties of Saturated Water in a Pressurized Water Reactor
Abstract: The properties of water and steam in a pressurized water reactor (PWR) need constant monitoring to understand what goes on in the PWR. Such properties include the thermodynamic properties, namely, specific volume, specific enthalpy, specific entropy and specific heat. This work is focused on calculating these properties of saturated water by using a simplified model within the temperature range that is applicable to PWR. The model parameters for each property …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 1, Issue 1, 2015 · pp. 10–15 Read article
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An New Approach For Image Steganography Using LSB and BPSO Optimization
Abstract: Abstract Presently, the technologies are evolving with high speed and everyday new innovations are done. As large amount of information shared between different users over the internet therefore the sharing of information is increasing day by day. In the conventional techniques of image steganography the idea of DCT and LSB approaches are used. But this technique is not optimum for securing the information. Thus, the BPSO optimization technique is proposed …
Published in International Journal of Image Processing and Pattern Recognition · Vol. 4, Issue 2, 2018 · pp. 27–36 Read article
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Kinetic Modeling and Thermodynamic Study of the Simultaneous Adsorption of Polycyclic Aromatic Hydrocarbons (PAHs) Onto Organomontmorillonite in Aqueous Medium
Abstract: Water is a vital source of human life, but it has frequently been polluted by mono and polycyclic aromatic hydrocarbons, usually from petrochemicals in petroleum industrial effluents as well as other anthropogenic activities. This study investigate the potential of montmorillonite intercalated HDTMAand TMPA cations for effective removal of five (5) different polycyclic aromatic hydrocarbons (PAH) namely: naphthalene, anthracene, chrysene,benzo(a)pyrene and benzo(g,h,i) perylene in aqueous medium. To research PAH adsorption behaviour …
Published in International Journal of Composite Materials and Matrices · Vol. 8, Issue 1, 2022 · pp. 28–38 Read article
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Kinetic and Mechanistic Study of Isomenthol Oxidation by Trichloroisocyanuric Acid in Acidic Medium
Abstract: The oxidation reaction of isomenthol with trichloroisocyanuric acid (TCICA) was systematically investigated in acidic medium to understand its kinetics, reaction mechanism, and overall reactivity. The study was carried out under pseudo-first-order conditions by maintaining a large excess of isomenthol relative to TCICA, allowing accurate determination of the reaction rate. The progress of the oxidation reaction was monitored kinetically, and the obtained data revealed that the reaction follows first-order kinetics with …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 12, Issue 2, 2026 · pp. 1–7 Read article
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Recent Advances in the Development and Performance Optimization of Advanced Metallic Alloys
Abstract: The continuous demand for high-performance materials in aerospace, automotive, energy, and biomedical industries has accelerated research and development in advanced metallic alloys. Metallurgy and alloy design play a crucial role in achieving superior mechanical, thermal, and chemical properties while maintaining cost efficiency and sustainability. This study presents a comprehensive overview of recent advances in metallic alloy development, focusing on novel alloying strategies, microstructural control, and performance optimization techniques. Emphasis is …
Published in International Journal of Metallurgy and Alloys · Vol. 12, Issue 1, 2026 · pp. 1–6 Read article
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Study of Corrosion and Corrosion Protection of Rebar Steel in Saline water
Abstract: Corrosion is major problem with metals. When they come in contact of surrounding corrosive medium to construct a corrosion cell on their interface, metals undergo in corrosion reactions. Such environments metals can be exhibited uniform, galvanic, pitting, stress, crevice, embrittlement, intergranular corrosion etc. The corrosion of phenomenon of rebar steel studied in saline water. It creates corrosive medium for rebar steel due to availability of chloride ions. Rebar steel is …
Published in International Journal of Metallurgy and Alloys · Vol. 11, Issue 2, 2025 · pp. 1–11 Read article
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Thermodynamic of Biomass Pyrolysis of RenewableEnergy Production
Abstract: Biomass pyrolysis is a pivotal thermochemical process for converting organic materials into valuable biofuels and chemicals, playing a critical role in the renewable energy landscape. This study explores the thermodynamic principles underlying biomass pyrolysis, emphasizing its potential for sustainable energy production. In this process, biomass is thermally broken down in the absence of oxygen, producing syngas, biochar, and bio-oil. Thermodynamic analysis provides insights into the energy requirements, reaction pathways, and …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 1, 2024 Read article
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Eco-Friendly Corrosion Inhibition of Aluminum Alloys with Acacia nilotica in Acidic Media
Abstract: Gravimetric analysis was used to examine the corrosion inhibitory effects of Acacia nilotica extract in 0.5 N H2SO4 on aluminum alloy at different concentrations and at 303 K. At a corrosion inhibitor concentration 0.45% at 303 K, the inhibition efficiency is found to be remarkably high (52.25%). Results show that the extract's capacity to inhibit was caused by its adsorption onto the metal surface via the Langmuir adsorption process. For …
Published in International Journal of Metallurgy and Alloys · Vol. 10, Issue 1, 2024 · pp. 31–37 Read article
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Nanocoating and Electrospraying Techniques Used for Corrosion Mitigation of Aluminum in Nitrogen dioxide Environment
Abstract: Nitrogen gas absorbs moist air to produce nitric acid. It develops acidic medium for aluminum. It forms a corrosion cell on the surface of aluminum. The formation of corrosion cell is written as: Al|Al+3||H+|H2 thus Corrosion reactions accelerate on aluminum surface and Al is oxidized into Al+3 and the H+ ions is reduced into H2. This acid produces various forms of corrosion in aluminum like galvanic, pitting, stress, crevice, blistering, …
Published in International Journal of Environmental Chemistry · Vol. 6, Issue 2, 2020 · pp. 20–31 Read article
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The Thermodynamic Studies of Derivative of Thiabendazole in 1, 4 Dioxane System in the Temperature Range 303 to 323 K
Abstract: Densities, viscosities of some derivatives of thiabendazole in 1, 4 dioxane were measured in the temperature range 303 to 323 K. The viscosity was determined by John-Dole equation. The data has been used to calculate thermodynamic parameters. G and H are negative and S is positive which indicate the spontaneity of reaction according to thermodynamics. Keyword: thermodynamic parameters, free energy change, enthalpy change, entropy change
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 1, Issue 1, 2015 Read article
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Modification of Cubic Equations of State for Polar Compounds
Abstract: Abstract Volumetric properties of substances are crucial thermodynamic parameters in that they aid personnel to compute other thermodynamic parameters like internal energy, enthalpy, entropy, etc. Moreover, these are required in the design of process equipment and in the sizing of pipelines. In 1873 van der Waals proposed an equation to predict volumetric properties of idealized gases. Hitherto, a plethora of such equations known as cubic equations of state have been …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 1, Issue 2, 2015 · pp. 1–11 Read article