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RISIntegration of a Dual Mode SI HCCI Engine Into Various Vehicle Architectures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A simulation study was performed to evaluate the potential fuel economy benefits of integrating a dualmode SIHCCI engine into various vehicle architectures. The vehicle configurations that were considered include a ...
Method for Determining Instantaneous Temperature at the Surface of Combustion Chamber Deposits in an HCCI Engine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Homogeneous charge compression ignition (HCCI) combustion is widely regarded as an attractive option for future high efficiency gasoline engines. HCCI combustion permits operation with a highly dilute, well mixed charge, ...
Quasi-Dimensional Diesel Engine Combustion Modeling With Improved Diesel Spray Tip Penetration, Ignition Delay, and Heat Release Submodels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Increasingly stringent fuel economy and CO2 emission regulations provide a strong impetus for development of high-efficiency engine technologies. Diesel engines dominate the heavy duty market and significant segments of ...
Impact of a Yttria-Stabilized Zirconia Thermal Barrier Coating on HCCI Engine Combustion, Emissions, and Efficiency
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In-cylinder surface temperature has significant impacts on the thermo-kinetics governing the homogeneous charge compression ignition (HCCI) process. Thermal barrier coatings (TBCs) enable selective manipulation of combustion ...
Development of a Device for the Nondestructive Thermal Diffusivity Determination of Combustion Chamber Deposits and Thin Coatings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental radiation chamber has been developed to nondestructively measure the thermal diffusivity of a combustion chamber deposit (CCD) layer. The accumulation of CCD shifts the operability range of homogeneous ...
HCCI Operability Limits: The Impact of Refinery Stream Gasoline Property Variation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Homogeneous charge compression ignition (HCCI) combustion is highly dependent on incylinder thermal conditions favorable to autoignition, for a given fuel. Fuels available at the pump can differ considerably in composition ...
Impact of Refinery Stream Gasoline Property Variation on Load Sensitivity of the HCCI Combustion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The homogeneous charge compression ignition (HCCI) combustion process is highly reliant upon a favorable incylinder thermal environment in an engine, for a given fuel. Commercial fuels can differ considerably in composition ...
Inverse Analysis of In-Cylinder Gas-Wall Boundary Conditions: Investigation of a Yttria-Stabilized Zirconia Thermal Barrier Coating for Homogeneous Charge Compression Ignition
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Thermal barrier coatings (TBCs) applied to in-cylinder surfaces of a low temperature combustion (LTC) engine provide an opportunity for enhanced efficiency via two mechanisms: (i) positive impact on thermodynamic cycle ...
Estimation of Thermal Barrier Coating Surface Temperature and Heat Flux Profiles in a Low Temperature Combustion Engine Using a Modified Sequential Function Specification Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A modified form of the sequential function specification method (SFSM) is developed with specific consideration given to multiple time scales in an effort to avoid overregularization of the solution estimates. The authors ...
Estimation of Thermal Barrier Coating Surface Temperature and Heat Flux Profiles in a Low Temperature Combustion Engine Using a Modified Sequential Function Specification Approach
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A modified form of the sequential function specification method (SFSM) is developed with specific consideration given to multiple time scales in an effort to avoid overregularization of the solution estimates. The authors ...