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RISIn Memoriam: Building on the Legacy of Elias P. Gyftopoulos (1927–2012) Entropy and Thermodynamics Made Rigorous
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Indeed, in the international thermodynamics community, he has been very influential. His crystal clear understanding of the entropy balance made him a leader in the 1970s and the 1980s, when the methods of availability ...
On the Supercritical Carbon Dioxide Recompression Cycle
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Supercritical carbon dioxide (sCO2) Brayton cycle has been studied in recent years, and its high efficiency and environmental safety have been investigated. One of the most promising sCO2 designs is the Recompression cycle ...
Prediction of Laminar Burning Speed of Propane/Hydrogen/Air Mixtures Using Power-Law Correlation and Two Machine Learning Models
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Propane (C3H8) and hydrogen (H2) are regarded as alternative fuels that are favorable to the environment. Hydrogen gas's low energy density, storage, and transportation are the main issues with using it as an alternative ...
Comparison Between RCCE and Shock Tube Ignition Delay Times at Low Temperatures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The ratecontrolled constrainedequilibrium (RCCE) method is a reduction technique based on local maximization of entropy or minimization of a relevant free energy at any time during the nonequilibrium evolution of the system ...
Development of the Rate Controlled Constrained Equilibrium Method for Modeling of Ethanol Combustion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The ratecontrolled constrainedequilibrium method (RCCE) has been further developed to model the combustion process of ethanol air mixtures. The RCCE is a reduction technique based on local maximization of entropy or ...
E-Fuels as Reduced Carbon Emission Options
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Synthetic “E-fuels,” or electro-fuels, have been introduced as a potential reduced carbon emissions energy source for power generation and vehicle propulsion applications. Environmental change is needed, with the transportation ...
Investigation of the Flame Stability and Laminar Burning Speed of Propylene/Air/Carbon Dioxide Mixtures Under Conditions of Elevated Temperatures and Pressures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Propylene is a chemical compound with the molecular formula C3H6. It is considered a natural refrigerant and has gained attention in recent years due to its low environmental impact. However, it is highly flammable. To ...
Constrained Equilibrium Modeling of Methane Oxidation in Air
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Ratecontrolled constrainedequilibrium method has been further developed to model methane/air combustion. A set of constraints has been identified to predict the nonequilibrium evolution of the combustion process. The set ...
Theoretical Prediction of the Effect of Blending JP-8 With Syngas on the Ignition Delay Time and Laminar Burning Speed
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A numerical study has been carried out to investigate the impact of adding syngas into JP-8 fuel. A new chemical mechanism has been assembled from existing mechanism of JP-8 and syngas and has been examined by comparing ...
Rate-Controlled Constrained-Equilibrium Application in Shock Tube Ignition Delay Time Simulation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The rate-controlled constrained-equilibrium (RCCE), a model order reduction method, assumes that the nonequilibrium states of a system can be described by a sequence of constrained-equilibrium kinetically controlled by ...