Remove Comparison Remove Convert Remove Diesel Remove Water
article thumbnail

A closer look at the basics of Volkswagen Group’s important new 2.0L diesel MDB engine

Green Car Congress

liter diesel, prominently showing the closely attached exhaust aftertreatment system. liter TDI diesel (EA288) will eventually replace all the 2.0-liter liter TDI Clean Diesel engines fitted in Audi and Volkswagen TDI Clean Diesel models, and as such, is a strategically important engine. The new MDB EA288 diesel.

Diesel 384
article thumbnail

Diesel/2-methylfuran blends show higher brake thermal efficiency, higher NOx than diesel

Green Car Congress

Researchers at Wuhan University report on the first comprehensive study of the combustion and emissions performance of blends of diesel and the renewable fuel 2-methylfuran (MF) in compression-ignition engines. Among their findings were that diesel–MF blends show higher brake thermal efficiency (BTE) than pure diesel.

Diesel 150
article thumbnail

SRI developing process for co-gasification of methane and coal to produce liquid transportation fuels; negligible water consumption, no CO2

Green Car Congress

Researchers from SRI International (SRI) are developing a methane-and-coal-to-liquids process that consumes negligible amounts of water and does not generate carbon dioxide. Lifecycle GHG comparison. Top: Conventional F-T process. Bottom: SRI process. Click to enlarge. Click to enlarge. per gallons vs. $2.14. Process flow diagram.

Coal 257
article thumbnail

Audi testing find e-ethanol and e-diesel produced by Joule often perform better than conventional counterparts

Green Car Congress

Audi testing of synthetic ethanol (Audi e-ethanol = Joule Sunflow-E) and synthetic diesel (Audi e-diesel = Joule Sunflow-D), produced in partnership with Joule ( earlier post ) in a pressure chamber and optical research engine has shown that the Audi e-fuels often perform better than their conventional counterparts.

Audi 285
article thumbnail

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

Green Car Congress

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. In comparison, the Brayton cycle has a theoretical conversion efficiency upwards of 50%. The recuperator improves the overall efficiency of the system.

Grid 396
article thumbnail

GTI and CRI/Criterion Inc. sign licensing agreement for IH2 process; direct production of biogasoline and diesel hydrocarbon blendstock

Green Car Congress

Lifecycle GHG emissions of renewable gasoline from the IH 2 process (GTI RG) compared to petroleum gasoline and diesel. for GTI’s Integrated Hydropyrolysis and Hydroconversion (IH 2 ) technology, which converts biomass directly into cellulosic gasoline and diesel hydrocarbon blendstocks. Property comparison.

Diesel 199
article thumbnail

XL1 dive and drive: Volkswagen aggressively optimizes for efficiency in its sleek diesel plug-in hybrid

Green Car Congress

During a media event in Wolfsburg, Germany, Volkswagen provided a medium dive into details of its two-seater XL1 Super Efficient Vehicle diesel plug-in hybrid ( earlier post ) as well as some driving time on local roads and highways. two-cylinder diesel, 20 kW electric motor and 5.5 The two-cylinder diesel is very audible when it runs.

Plug-in 324