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Optimized heavy-duty CI engine fueled with DME delivers diesel performance, significantly reduces engine-out emissions

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The engine was also equipped with an electrically driven volumetric pump in the exhaust gas recirculation (EGR) path which gives the freedom to set any desired EGR rate, independently from the pressure ratios across the turbocharger. EGR system consisting of an EGR cooler, an electrically driven EGR pump and respective piping.

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CARB: clean fuels replaced more than 50% of diesel used in California in Q1 2023

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Clean fuels replaced more than 50% of the diesel used in the state in the first quarter of 2023, according to the California Air Resources Board (CARB). billion gallons of diesel. Since compliance began, the program has helped to replace more than 8.6

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ETH Zürich team developing light-duty natural gas-diesel hybrid electric powertrain; 43 g/km CO2

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Consumption measurements of the dual-fuel natural gas-diesel engine as a function of speed and load. Researchers at ETH Zürich have developed a light-duty hybrid electric vehicle featuring a dual-fuel natural gas-diesel engine. Source: Ott et al. Click to enlarge. earlier post ) and Clean Air Power (e.g.,

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ORNL study finds best current use of natural gas for cars is efficient production of electricity for EVs

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However, they also noted, high PTW efficiencies and the moderate fuel economies of current compressed natural gas vehicles (CNGVs) make them a viable option as well. If CNG were to be eventually used in hybrids, the advantage of the electric generation/EV option shrinks. Their open access paper is published in the journal Energy.

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EV myths busted: Are electric vehicles safer than gas-powered cars?

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Electric vehicles have historically received a bad reputation for concerns around safety. Issues like thermal runaway, electrocution, and reports of inextinguishable fires plagued the pioneering electric vehicles. Useful terms: Internal Combustion Engine Vehicle (ICEV) and Electric Vehicle (EV). In fact, EVs have just 25.1

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NREL report finds electrified heavy-duty vehicle powertrains could provide lower total cost of ownership than diesel under certain conditions

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A new total cost of ownership (TCO) study from the National Renewable Energy Laboratory (NREL) finds that battery-electric and fuel-cell electric commercial trucks could be economically competitive with conventional diesel trucks by 2025 in some operating scenarios. —Hunter et al.

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Diamond Green Diesel seeks LCFS certification for three renewable diesel pathways

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In addition to RD, the process produces a liquid petroleum gas vapor stream (LPG vapor); a liquid petroleum liquid stream (naphtha LPG); and a purge gas stream. All of the co-product streams go to the adjacent Valero oil refinery to be separated into fuel gas, propane, and naphtha through a distillation process. UCO: 19.92.

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