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PNNL team develops onboard fuel separation technology to enable octane-on-demand for improved fuel economy

Green Car Congress

Researchers at the US Department of Energy’s Pacific Northwest National Laboratory (PNNL) have developed an onboard separation system that could support increased fuel economy and lower greenhouse gas emissions as part of an octane-on-demand fuel-delivery system. Unfortunately, these engines exacerbate engine knock.

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Tenneco/Gentherm showcasing prototype of thermoelectric generator for waste heat recovery; targeting 5% fuel economy improvement

Green Car Congress

Tenneco and Gentherm (formerly BSST/Amerigon) are part of a US Department of Energy (DOE) consortium actively developing a thermoelectric generator (TEG) for capturing waste exhaust heat in vehicles and converting it to electrical energy to be used to power electrical systems within the vehicle. Fuel Efficiency Thermoelectrics'

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Tips: 6 Ways to Increase Your Fuel Economy

Clean Fleet Report

But how can you increase your fuel economy? Surprisingly, the number of items you carry in your vehicle can have a meaningful impact on your fuel economy. While it does cost a bit to have your car checked over by a mechanic, regular maintenance will improve your fuel economy and help you catch problems before they occur.

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ORNL researchers use stop-light cameras to reduce fuel consumption of less-efficient vehicles via traffic management

Green Car Congress

Approximately 6 billion gallons of fuel are wasted in the US each year as vehicles wait at stop lights or sit in dense traffic with engines idling, according to US Department of Energy estimates. —Tim Gee, principal computer vision engineer at GRIDSMART.

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Dearman-led consortium awarded $3.1M to develop waste-heat-recovery system using liquid air engine

Green Car Congress

A consortium led by the Dearman Engine Company has been awarded ÂŁ1.86 The Dearman project is to deliver a production-feasible waste-heat recovery system for urban commercial vehicles, which offers life-cycle CO 2 savings of up to 40%; fuel savings of 25%, with the potential of up to almost 50%; and potential payback in less than three years.

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Ford study shows Rankine waste heat recovery system on a light-duty vehicle could almost meet full vehicle accessory load on highway cycle

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However, in city driving, the ORC system would supply about half of the accessory load requirement for a conventional engine, and only about one-third of the load requirement for a hybrid powertrain, due to the frequent engine off condition, according to the results presented by Quazi Hussain. For the Atkinson-cycle 2.5L in the city.

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Simulation study suggests ORC waste heat recovery system could deliver potential 7% improvement in fuel consumption in a PHEV on highway

Green Car Congress

Their paper was presented at the ASME Internal Combustion Engine Division 2012 Fall Technical Conference by Marcello Canova, assistant professor at OSU; lead author was Philipp Skarke, from the University of Stuttgart Institute for Internal Combustion Engines and Automotive Engineering. —Skarke et al.

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