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RISImpact of Ignition Assistant on Combustion of Cetane 30 and 35 Jet-Fuel Blends in a Compression-Ignition Engine at Moderate Load and Speed
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study investigates the use of a commercial-off-the-shelf (COTS) ceramic glow-plug to assist ignition of jet fuel blends with cetane numbers of 30 and 35, below the minimum cetane number of 40 for #2 diesel. Experiments ...
A Thermal Model for a Hybrid Gas Bearing System in Oil-Free Turbochargers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: With little drag friction, gas bearings operate at high rotor speed and high temperature and thus enable long operating life along with material damping for mechanical energy dissipation. However, most computational tools ...
A Thermal Model for a Hybrid Gas Bearing System in Oil-Free Turbochargers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: With little drag friction, gas bearings operate at high rotor speed and high temperature and thus enable long operating life along with material damping for mechanical energy dissipation. However, most computational tools ...
Thermomechanical Analysis of an Ignition-Assistance Device Due to Fuel Spray Impingement Using the Smoothed Particle Hydrodynamics Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. Accurate prediction of the ignition-assistance device's thermomechanical response during fuel spray impingement is essential for understanding ignition reliability in aviation compression-ignition engines. This ...
Enforcing Causality in Data-Driven Modeling of Complex Dynamical Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. Modeling complex dynamical systems is crucial for addressing societal and industrial needs. Traditional approaches, including physics-based modeling and system identification, often require extensive expert ...
Large Eddy Simulation of High Reynolds Number Nonreacting and Reacting JP 8 Sprays in a Constant Pressure Flow Vessel With a Detailed Chemistry Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In military propulsion applications, the characterization of internal combustion engines operating with jet fuel is vital to understand engine performance, combustion phasing, and emissions when JP8 is fully substituted ...
A Phenomenological Thermal Spray Wall Interaction Modeling Framework Applied to a High-Temperature Ignition Assistant Device
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Airborne compression ignition engines must operate with reliable ignition systems to achieve proper ignition at every cycle, particularly at high altitudes. Glow-plug-based ignition-assistant (IA) devices can provide the ...
Predicting Leidenfrost Temperature and Effects of Impact Conditions on Droplet Size Distribution in Film-Boiling Regime
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The interaction of a droplet with a solid wall is relevant in various engineering applications. The properties of the resulting secondary droplets are determined by the wall temperature, ambient pressure, impact momentum, ...
Numerical Modeling and Analysis of Energy-Assisted Compression Ignition of Varying Cetane Number Jet Fuels for High-Altitude Operation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Computational fluid dynamics (CFD) simulations are performed to study the potential of energy-assisted compression ignition (EACI) strategy for enabling ignition and enhancing combustion of different cetane number jet fuels ...
Characterizing Drop-Wall Interactions of Engine Fuels at Engine-Relevant Conditions Using Smoothed Particle Hydrodynamics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In an internal combustion engine, interactions of fuel droplets and heated walls can significantly affect the combustion process and engine performance. The formation and characteristics of secondary droplets from drop-wall ...