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RISCharacterization of an Apparatus to Study Solid Deposit Formation in Lubricating Oils at High Temperatures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: When exposed to excessively high temperatures, the lubricating oils in turbines undergo extreme oxidation and thermal degradation processes that eventually result in the formation of solid deposits that can, in turn, cause ...
High-Pressure Laminar Flame Speeds and Markstein Lengths of Syngas Flames Diluted in Carbon Dioxide and Helium
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: New laminar flame speed and burned-gas Markstein length data for H2–CO–O2–CO2–He mixtures have been measured from spherically expanding flames. Experiments were conducted at 10 atm and room temperature for H2:CO ratios ...
Laminar Flame Speed Measurements of Kerosene-Based Fuels Accounting for Uncertainties in Mixture Average Molecular Weight
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: New laminar flame speed experiments have been collected for some kerosene-based liquid fuels: Jet-A, RP-1, and diesel fuel #2. Accurately understanding the combustion characteristics of these, and all kerosene-based fuels ...
High-Temperature Ignition Kinetics of Gas Turbine Lubricating Oils
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Lubricant ignition is a highly undesirable event in any mechanical system, and surprisingly minimal work has been conducted to investigate the auto-ignition properties of gas turbine lubricants. To this end, using a recently ...
Laminar Flame Speed Experiments of Alternative Liquid Fuels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: New laminar flame speed experiments have been collected for two alternative liquid fuels. Understanding the combustion characteristics of these synthetic fuels is an important step in developing new chemical kinetics ...
Temperature Dependence of Aerated Turbine Lubricating Oil Degradation From a Lab-Scale Test Rig
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Operational, efficiency, safety, and economic issues may arise from the formation and accumulation of sludge, varnish, and coke deposits that result from the degradation of engine lubricants through oxidation or thermal ...
Ignition of Aged Lubricants in a Shock Tube
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Lubricants experience harsh conditions which result in degradation of the oil. To imitate similar conditions, Mobil DTE 732, a common gas turbine lubricating oil, was subjected to high temperatures for an extended period ...
Ignition of Various Lubricating Oil Compositions Using a Shock Tube
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: With new restrictions imposed on gas turbine efficiencies and power outputs, lubricating oils are used at higher temperatures and harsher conditions leading to potential, unintended combustion. To establish an understanding ...
Auto-Ignition of Gas Turbine Lubricating Oils in a Shock Tube Using Spray Injection
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In choosing the lubricating oil for a gas turbine system, properties such as viscosity, viscosity index, corrosion prevention, and thermal stability are chosen to optimize turbine longevity and efficiency. Another property ...
The Effect of Mixture Variation and Initial Temperature on the NH2* Thickness of Spherically Propagating Laminar Ammonia Flames
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Interest in ammonia (NH3) in combustion has increased in recent years as a carbon-free fuel alternative. Therefore, understanding its combustion characteristics is crucial. One way to increase the knowledge of ammonia ...