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- W4362677805 abstract "<div class=section abstract><div class=htmlview paragraph>Paper details the design approach and performance of a high-pressure common rail fuel injection system used with Propane-DME mixtures targeting high injection pressures on a light duty 2.2L inline-4 compression ignition engine. The study estimates the bulk modulus of elasticity based on the hardware geometry and operating pressures to assess the compressibility of Propane and DME across a range of pressures typical of the LD engine application. The compressibility factor ranges from 500 to 3000 bar, significantly lower than the theoretical values for the conditions tested. The high-pressure pump performance is optimized via the implementation of an inlet metering valve operated on a crank-angle open/close sequence to control pressure at the common rail. The application of a model-based controller and the use of high-speed sampling of rail pressure indicate that pressure at the rail can be attained with the pump metering valve, and without use of the pressure relieve valve present in the rail. Results show a significant reduction on pumping work parasitics and of fuel heating, on the order of 40°C, at typical working conditions with the proposed approach. Injector rates of injection with Propane-DME are very similar to those of Diesel. Paper compares bench data of rates of injection versus simulation predictions across operating pressures of 200 to 1000bar and from injection commands spanning 0.20 to 2.0ms. The accuracy of the model predictions are attributed in part by to the updated fuel compressibility modulus descriptions attained during the testing.</div></div>" @default.
- W4362677805 created "2023-04-07" @default.
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- W4362677805 date "2023-04-11" @default.
- W4362677805 modified "2023-10-18" @default.
- W4362677805 title "Development of a High-Pressure Fuel Injection System for Use with Propane-DME" @default.
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- W4362677805 doi "https://doi.org/10.4271/2023-01-0403" @default.
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