This is our latest selection of worldwide publications and patents in english on Thermodynamics, between many scientific online journals, classified and focused on thermodynamic, heat transfer, entropy, enthalpy, specific heat, Gibbs, adiabatic, carnot and internal energy.
A Symbol Conditional Entropy-Based Method for Incipient Cavitation Prediction in Hydraulic Turbines
Published on 2025-03-11 by Mengge Lv, Feng Li, Yi Wang, Tianzhen Wang, Demba Diallo, Xiaohang Wang @MDPI
Abstract: The accurate prediction of incipient cavitation is of great significance for ensuring the stable operation of hydraulic turbines. Hydroacoustic signals contain essential information about the turbine’s operating state. Considering that traditional entropy methods are easily affected by environmental noise when the state pattern is chaotic, leading to the extracted cavitation features not being obvious, a Symbol Conditional Entropy (SCE) feature extraction method is proposed to clas[...]
Our summary: Symbol Conditional Entropy method proposed for incipient cavitation prediction in hydraulic turbines using hydroacoustic signals. Improved fault information extraction and trend prediction with reduced uncertainty. Validation with RMSE, MAE, and MAPE showing superior performance compared to traditional methods.
Conditional Entropy, Incipient Cavitation, Hydraulic Turbines, Feature Extraction
Publication
Effects of Adding Al/Fe Content on the Wear Properties in CoCrNi Medium-Entropy Alloy Coatings Deposited by Laser Cladding
Published on 2025-03-10 by Jianyan Xu, Wenping Liang, Qiang Miao, Rutong Wan, Yuanyuan Sun, Jinchuan Wen, Jiayao Yu, Shi Yang @MDPI
Abstract: CoCrNi medium-entropy alloy (MEA) coatings prepared using laser cladding (LC) with unique properties have aroused great interest in recent years and have been widely studied. However, limited studies have been conducted on the effect of adding Al/Fe on the wear properties of CoCrNi MEA coatings prepared on the surface of stainless steel. In this study, AlCoCrFeNi, CoCrFeNi, and CoCrNi MEA LC coatings were prepared on a stainless steel substrate. The grain structures and microscopic morphologies [...]
Our summary: Effects of adding Al/Fe on wear properties of CoCrNi MEA coatings prepared by laser cladding were studied. AlCoCrFeNi, CoCrFeNi, and CoCrNi MEA coatings were characterized, and wear mechanisms were analyzed. Fine-grain and hardness strengthening were identified as main mechanisms.
Al/Fe Content, Wear Properties, Laser Cladding, CoCrNi MEA
Publication
Improved Variational Mode Decomposition in Pipeline Leakage Detection at the Oil Gas Chemical Terminals Based on Distributed Optical Fiber Acoustic Sensing System
Published on 2025-03-10 by Hongxuan Xu, Jiancun Zuo, Teng Wang @MDPI
Abstract: Leakage in oil and gas transportation pipelines is a critical issue that often leads to severe hazardous accidents at oil and gas chemical terminals, resulting in devastating consequences such as ocean environmental pollution, significant property damage, and personal injuries. To mitigate these risks, timely detection and precise localization of pipeline leaks are of paramount importance. This paper employs a distributed fiber optic sensing system to collect pipeline leakage signals and process[...]
Our summary: Improved VMD algorithm with automatic parameter optimization and fuzzy dispersion entropy for enhanced denoising performance. Novel threshold setting technique reduces false alarm rate in gas pipeline leakage detection, improving accuracy and reliability. Valuable tool for enhancing safety and efficiency of oil and gas transportation systems.
Variational Mode Decomposition, Pipeline Leakage Detection, Distributed Optical Fiber Acoustic Sensing System, Particle Swarm Optimization
Publication
Comprehensive Assessment and Obstacle Analysis on Low-Carbon Development Quality of 30 Provincial Regions in China
Published on 2025-03-10 by Haoran Zhao, Zhen Yang, Shunan Wu, Zhuowen Zhang, Chuan Li, Chunhua Jin, Sen Guo @MDPI
Abstract: Low-carbon development (LCD) in China has become the critical measure to achieve sustainable development and handle climate change. This investigation evaluates 30 provincial regions’ LCD quality from dimensions of low-carbon (LC) economy, resources utilization, LC environment, and LC society. According to the integrated weights combined subjective weights identified through the best–worst method (BWM) and objective weights attained through the anti-entropy weight (AE[...]
Our summary: Evaluation of LCD quality in 30 Chinese provinces based on economy, resources, environment, and society, Top sub-criteria in 2021, Obstacle factors analysis, Suggestions for improvement.
Low-carbon development, Obstacle analysis, Comprehensive assessment, Provincial regions
Publication
Development of a Multi-Bed Catalytic Heat Generator Utilizing a Palladium-Based Hydrogen Combustion System
Published on 2025-03-10 by Grzegorz Mordarski, Konrad Skowron, Dorota Duraczy?ska, Anna Drabczyk, Robert P. Socha @MDPI
Abstract: The growing demand for sustainable energy solutions requires the development of safe and efficient systems for hydrogen utilization. Hydrogen, with its high energy density and clean combustion characteristics, has become a promising alternative for heating applications. However, conventional combustion technologies often suffer from inefficiencies and safety concerns, such as NOx emissions and explosion risks. To address these challenges, this study aimed to design and evaluate a catalytic heat [...]
Our summary: Development of a Multi-Bed Catalytic Heat Generator utilizing a Palladium-Based Hydrogen Combustion System to address inefficiencies and safety concerns in conventional combustion technologies. The study aimed to design and evaluate a system utilizing hydrogen-air mixtures under controlled conditions, with a focus on scalability and performance optimization through thermal imaging and temperature monitoring.
catalytic heat generator, palladium-based, hydrogen combustion system, sustainable energy solutions
Publication
A GIS-Based Suitability Model for Semi-Arid Cities
Published on 2025-03-10 by Ritu Nathawat, Saurabh Kumar Gupta, Shruti Kanga, Suraj Kumar Singh, Shamik Chakraborty, Asif Marazi, Bhartendu Sajan, Mohamed Yehia Abouleish, Gowhar Meraj, Tarig Ali, Pankaj Kumar @MDPI
Abstract: Urbanization in Jaipur, India, has led to a 42% decline in green cover over the past two decades, exacerbating urban heat, air pollution, groundwater depletion, and reduced livability. Green Infrastructure (GI) offers a sustainable solution, but effective implementation requires robust, data-driven strategies. This study employs geospatial technologies—GIS, remote sensing, and Multi-Criteria Decision Analysis (MCDA)—to develop a suitability model for Urban Green Infra[...]
Our summary: Study develops GIS-based suitability model for Urban Green Infrastructure planning in semi-arid city, Jaipur, India, using geospatial technologies and environmental factors. Analysis reveals significant opportunities for urban cooling and enhanced ecosystem services.
GIS, Suitability Model, Green Infrastructure, Geospatial Technologies
Publication
A method and system for improving pore-scale network modeling of two-phase flow in porous media
Patent published on the 2025-03-06 in WO under Ref WO2025049615 by UNIV OF WYOMING [US] (Gong Yanbin [us], Mccaskill Bradley [us], Sedghi Mohammad [us], Piri Mohammad [us])
Abstract: A method and system for predicting the physical and chemical media properties of a porous media by one or more processing units. The method includes performing a pore-network modeling (PNM) and applying a Mayer-Stowe-Princen (MS-P) semi-analytical theory of drainage to the PNM. The MS-P semi-analytical theory of drainage includes constructing pore boundaries from an image of a pore cross-section. Geometrically and thermodynamically-favorable arc meniscus (AM) are identified from a plurality of A[...]
Our summary: Improving pore-scale network modeling of two-phase flow in porous media by predicting physical and chemical media properties through pore-network modeling and applying a semi-analytical theory of drainage. Identifying geometrically and thermodynamically-favorable arc meniscus and determining an optimal fluid configuration.
pore-scale network modeling, two-phase flow, porous media, pore-network modeling
Patent
Active thermal switch
Patent published on the 2025-03-06 in WO under Ref WO2025049988 by FLECHT TOBIAS [LU] (Gemer Andrew Josef [us], Cyrus Justin [us], Cyrus Julian [us], Wilson Peter [us], Flecht Tobias [lu])
Abstract: An active thermal switch assembly according to aspects described herein may include a hot plate, a cold plate, and an actuator. The actuator may cause the hot plate and the cold plate to come into mechanical contact, thereby achieving a closed state for the active thermal switch and facilitating conductive heat transfer between the two plates. Convective/radiative heat transfer may have little effect as compared to conductive heat transfer (e.g., as may be the case in environments having reduced[...]
Our summary: Active thermal switch assembly includes hot plate, cold plate, and actuator for conductive heat transfer control. Actuator brings plates into contact for closed state, reducing heat transfer, while introducing gap achieves open state. Separation distance modulation can also control thermal radiation.
thermal switch, actuator, conductive heat transfer, separation distance
Patent
IT 
EN 
FR 
DE 
ES