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Researchers developing free-piston linear generator for exhaust waste heat recovery

Green Car Congress

Researchers in China have developed a novel free-piston linear generator (FPLG) to recover exhaust waste heat efficiently from a vehicle engine. The FPLG can be used in a small-scale organic Rankine cycle (ORC) system and can directly convert the thermodynamic energy of working fluid into electricity. —Tian et al.

Exhaust 186
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Why Wait For A New Electric Truck When You Can Upcycle Your Old Gas Guzzler?

CleanTechnica EVs

Diesel-to-electric conversions are helping to ease the electric truck bottleneck while contributing to the sparkling green economy of the future.

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Argonne releases GREET 2020

Green Car Congress

The GREET (Greenhouse Gases, Regulated Emissions, and Energy use in Transportation) tool provides a common, transparent platform for lifecycle analysis (LCA) of of the energy and environmental effects of a wide variety of transportation fuels and vehicle technologies in major transportation sectors (i.e., CO 2 -derived ethanol. Green ammonia.

2020 324
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ORNL study finds best current use of natural gas for cars is efficient production of electricity for EVs

Green Car Congress

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. —Curran et al.

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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

Starting from a energy-based powertrain simulation model validated on experimental data from the PHEV, the researchers conducted a first- and second-law analysis to identify the potential for engine waste heat recovery, considering a variety of driving cycles and assuming the vehicle operating in charge-sustaining (HEV) mode.

Waste 312
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Mitsubishi Heavy and Infinium to collaborate on the production and deployment of electrofuels in Japan

Green Car Congress

Infinium utilizes waste CO 2 and hydrogen, which are converted to synthetic gas using Infinium’s proprietary, patented CO2Cat catalyst. The synthetic gas is then fed through a second reactor and proprietary production step to convert synthesis gas directly into liquid fuels.

Japan 243
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HeatReCar project demonstrates technical feasibility of thermoelectric generator for waste heat recovery; economic case more difficult

Green Car Congress

A recently completed European project coordinated by Centro Ricerche Fiat (CRF) demonstrated the technical feasibility of a Bi 2 Te 3 -based thermoelectric generator (TEG) for waste heat recovery for application to a diesel light-duty truck (LDT). Spark plasma sintering uses an electric current to heat the sample and to activate sintering.

Waste 236