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ORNL team achieves diesel-like efficiency with SI engine

Green Car Congress

A team at Oak Ridge National Laboratory (ORNL) has achieved diesel-like efficiency in a single-cylinder spark-ignition (SI) research engine while maintaining compatibility with stoichiometric 3-way catalyst (TWC) systems. diesel engines are expected to meet significant technical barriers in being able to meet future NO x regulations.

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Cummins and Tula study of Diesel Dynamic Skip Fire (dDSF) shows 74% reduction in NOx, 5% in CO2 on low load cycle

Green Car Congress

a leader in propulsion efficiency, announced at SAE International’s WCX the results of their collaborative study on the effectiveness of Tula’s diesel Dynamic Skip Fire (dDSF) in reducing nitrogen oxides (NO x ) and carbon dioxide (CO 2 ) emissions on a Cummins X15 HD Efficiency Series diesel engine. Cummins Inc. Earlier post.).

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

Green Car Congress

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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LiquidPiston announces small tactical power generator development for US Army; 2-5 kW

Green Car Congress

LPI), developer of advanced rotary diesel and multi-fuel internal combustion engines, announced the award of a Small Business Innovation Research (SBIR) contract with the United States Army to develop the X-Engine platform to power Small Tactical Generators ranging from 2-5 kW. LiquidPiston, Inc. Earlier post.). 2 kW 28VDC.

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Hyundai Creta vs Maruti Suzuki Grand Vitara: Price and specifications comparison

Baua Electric

Here is a price and specification-based comparison between the 2024 Hyundai Creta and Maruti Suzuki Grand Vitara. Specifications Comparison Maruti Suzuki Grand Vitara Hyundai Creta Engine 1462.0 This engine is capable of generating 114 bhp peak power and 143.8 The diesel engine is a 1.5-litre Powering the SUV is a 1.5-litre

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Sandia team puts power into local grid with supercritical CO2 closed-loop Brayton-cycle turbine

Green Car Congress

Sandia National Laboratories researchers recently delivered electricity produced by a new power-generating system to the Sandia-Kirtland Air Force Base electrical grid. Because so much energy is lost turning steam back into water in the Rankine cycle, at most a third of the power in the steam can be converted into electricity.

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Mercedes Benz GLS vs BMW X7 vs Audi Q8: Price and specification comparison

Baua Electric

As the newly launched flagship Mercedes-Benz SUV is ready to take on its rivals, here is a price and specification comparison between Mercedes-Benz GLS , Audi Q8 and BMW X7. crore (ex-showroom) Mercedes Benz GLS vs BMW X7 vs Audi Q8: Specification Mercedes-Benz launched the new GLS facelift in India in both petrol and diesel engine options.

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