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Experimental evaluation of renewable drop-in fuel blends for compression ignition engines

By: Language: English Series: Doktorsavhandlingar vid Chalmers tekniska högskola. Ny serie ; 4997Publication details: Göteborg : Chalmers University of Technology. Division of Combustion and Propulsion Systems, 2021Description: 96 sISBN:
  • 9789179055301
Subject(s): Online resources: Notes: Härtill 4 uppsatser Dissertation note: Diss. (sammanfattning) Göteborg : Chalmers tekniska högskola, 2021 Abstract: Driven by the need to reduce greenhouse gas emissions while meeting the growing demand for mobility, the transport sector is shifting towards more sustainable and less polluting energy sources. Although vehicle electrification is advancing, it will take decades for electric vehicles to completely replace all current vehicles powered by internal combustion engines. In the meantime, it may be possible to reduce the emissions originating from transport by replacing fossil Diesel fuel with renewable alternatives suitable for use in compression ignition combustion engines. Fuels that can be used in existing engines without modification of hardware or calibration settings are called drop-in fuels. The scientific contribution of this dissertation is an experimental evaluation of potential drop-in fuel blends for the use in a compression ignition engine. The main component of each studied blend was either a long-chain alcohol or poly(oxymethylene) dimethyl ether (OME3−5) blended with hydrotreated vegetable oil and rapeseed methyl ester as well as fossil Diesel fuel in some cases. The performance and emissions of the different fuel blends were investigated experimentally in heavy duty and light duty single cylinder research engines. Some of the long-chain alcohol blends were also investigated in a heavy duty multicylinder engine as well as in optical spray experiments using a high-pressure/high-temperature constant volume chamber.
Item type: Dissertation
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Härtill 4 uppsatser

Diss. (sammanfattning) Göteborg : Chalmers tekniska högskola, 2021

Driven by the need to reduce greenhouse gas emissions while meeting the growing demand for mobility, the transport sector is shifting towards more sustainable and less polluting energy sources. Although vehicle electrification is advancing, it will take decades for electric vehicles to completely replace all current vehicles powered by internal combustion engines. In the meantime, it may be possible to reduce the emissions originating from transport by replacing fossil Diesel fuel with renewable alternatives suitable for use in compression ignition combustion engines. Fuels that can be used in existing engines without modification of hardware or calibration settings are called drop-in fuels. The scientific contribution of this dissertation is an experimental evaluation of potential drop-in fuel blends for the use in a compression ignition engine. The main component of each studied blend was either a long-chain alcohol or poly(oxymethylene) dimethyl ether (OME3−5) blended with hydrotreated vegetable oil and rapeseed methyl ester as well as fossil Diesel fuel in some cases. The performance and emissions of the different fuel blends were investigated experimentally in heavy duty and light duty single cylinder research engines. Some of the long-chain alcohol blends were also investigated in a heavy duty multicylinder engine as well as in optical spray experiments using a high-pressure/high-temperature constant volume chamber.