Green Car Congress

JANUARY 15, 2012

The transient results illustrate the gradual formation of the nucleation mode particles with continuous increase in exhaust temperatures. The particle number count under those conditions increased by more than an order of magnitude in comparison to DPF-out particle concentrations. The engine was also equipped with a catalyzed?DPF

Exhaust 218

Exhaust Diesel West Virginia 2007 218

Green Car Congress

MARCH 23, 2021

The University of Nebraska’s Department of Chemical and Biomolecular Engineering recently released results of a study of 50 non-flex fuel vehicles from the State of Nebraska to determine the adaptability, economic feasibility, and environmental impact of using E30 (30% ethanol blend). from vehicles running on each fuel type.

Nebraska 225

Nebraska Fuel Vehicles Exhaust 225

Green Car Congress

JUNE 29, 2013

A study by Sage Kokjohn, Senior Engineer in Combustion Research at Cummins Inc., Rolf Reitz of the University of Wisconsin found that reactivity controlled compression ignition (RCCI) ( earlier post ) in a light-duty engine can meet Tier 2 Bin 5 NO x levels without aftertreatment, while offering a 4% improvement in fuel consumption and 7.3%

Light 207

Light Engine Wisconsin Fuel Economy 207

Green Car Congress

OCTOBER 31, 2009

Schematic model of a wave disk engine, showing combustion and shockwaves within the channels. Researchers from Michigan State University have been awarded $2.5 Researchers from Michigan State University have been awarded $2.5 The Wave Disc Engine. Source: MSU. Click to enlarge. Norbert Müller.

Michigan 316

Michigan Engine Universal 2004 316

Green Car Congress

SEPTEMBER 4, 2013

The concept of the Ricardo Split-Cycle engine. The recuperated engine uses isothermal compression via cryogenic injection to enable significant exhaust to compressed gas heat transfer. Recuperator to transfer heat from exhaust gas to compressed air. Source: Neville Jackson. Click to enlarge.

Engine 249

Engine Fuel Vehicles Waste 249

Green Car Congress

FEBRUARY 5, 2016

A team at the Engine Research Center (ERC), University of Wisconsin-Madison has demonstrated the viability of reactivity-controlled compression ignition (RCCI) in a two-stroke engine. A paper on their work is published in Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering.

Engine 150

Engine Wisconsin Automobile Gasoline 150

Green Car Congress

SEPTEMBER 21, 2011

The pair has received $850,000 in grants to support the fabrication and testing of a prototype of the K6 engine; Shedd says he expects to have a prototype running by late fall or early winter. The engine incorporates a modified Brayton cycle ( earlier post ) into a continuous combustion engine system. —Timothy Shedd.

Engine 186

Engine Diesel Standards Exhaust 186

Green Car Congress

MARCH 4, 2010

TSCi combustion minimizes heat loss to the cylinder walls and in the exhaust. Transonic is currently working with four OEMs on evaluating the system, Rocke said: one each in Asia, North America, Europe and the other in the heavy-duty engine sector. Source: Transonic. Click to enlarge. The TSCi system components. Click to enlarge.

Fuel Economy 297

Fuel Economy Fuel Economy Engine 297

Green Car Congress

MAY 29, 2014

Other research has shown that carbonyls directly influence physiological response to diesel exhaust particles and can also contribute to secondary organic aerosol formation. In the Tianjin study, they team fueled a four-cylinder light-duty diesel engine fueled with CFT and DF, identifying 13 individual carbonyl compounds in the exhaust.

Coal 210

Coal Diesel Emissions Fuel 210

Green Car Congress

OCTOBER 24, 2016

A research team from Empa (Swiss Federal Laboratories for Materials Science and Technology) and the University of Applied Sciences Bern, Laboratory for Exhaust Emission Control, reports that ethanol blending appeared to reduce genotoxic emissions from a flex-fuel Euro-5 gasoline direct injection (GDI) vehicle (a Volvo V60 with a 1.6

Gasoline 150

Gasoline Emissions Exhaust Vehicles 150

Green Car Congress

APRIL 9, 2019

A study by a team from North Carolina State University, with colleagues from the Urban Air Initiative and 3DATX Corporation, has shown that non-FFVs (flexible-fuel vehicles) can adapt to a mid-level ethanol blend—specifically E27. ITA varied with respect to engine load and fuel octane for each vehicle. — Yuan et al.

Vehicles 284

Vehicles Emissions North Carolina Gasoline 284

Green Car Congress

FEBRUARY 5, 2016

A study of emissions from gasoline direct injection (GDI) vehicles in an urban near-road environment in Toronto over a wide range of weather conditions (February 2014 to January 2015) found that—other than for NO x and CO—the GDI engines had elevated emissions compared to the Toronto fleet.

Environment 150

Environment Emissions Exhaust 2014 150

Green Car Congress

JUNE 23, 2011

The concept of the Ricardo Split-Cycle engine. The recuperated engine uses isothermal compression via cryogenic injection to enable significant exhaust to compressed gas heat transfer. LN 2 produced using the engine (efficiency of generation is a key parameter). Source: Neville Jackson. Click to enlarge. Click to enlarge.

Exhaust 285

Exhaust Concept Vehicles Engine 285

Green Car Congress

JULY 31, 2019

A team at the University of Delaware has demonstrated a direct ammonia fuel cell (DAFC) prototype with a peak power density of 135 mW cm -2 at 80 ?C. Source-to-Tank cost comparison of carbon-neutral transportation fuels. A paper on the work is published in the journal Joule. Zhao et al.

Delaware 278

Delaware Transportation Fuel Hydrogen 278

Green Car Congress

MARCH 25, 2020

This puffy line is not just exhaust from the engine, but a change in the clouds that’s caused by small airborne particles of pollution. New research led by the University of Washington (UW) is the first to measure this phenomenon’s effect over years and at a regional scale. Michael Diamond/University of Washington.

Emissions 223

Emissions Pollution 2003 Climate 223

Green Car Congress

NOVEMBER 23, 2012

Diesel engine torque output as a function of the engine speed (rpm) for the tested fuels. Here, we have selected a representative from each of these three groups, produced biodiesel, have characterized the properties of the fuels in comparison to biodiesel produced from plant oils. Credit: ACS, Wahlen et al. Click to enlarge.

Diesel 316

Diesel Oil Fuel Exhaust 316

Green Car Congress

FEBRUARY 1, 2009

Pneumatic hybrid engine on the test bench. Researchers at ETH Zürich are developing a pneumatic hybrid engine—an internal combustion engine connected to a compressed air tank instead of a battery system. If fuel is also injected, the engine responds quickly. Rüegg / ETH Zurich. Click to enlarge.

Hybrid 199

Hybrid Engine Downsizing 2009 199

Green Car Congress

AUGUST 3, 2009

Researchers at the University of Wisconsin, led by Dr. Rolf Reitz, are investigating a blended dual-fuel (gasoline and diesel) concept to extend the operating range of partially premixed charge compression ignition combustion by using the varying fuel reactivity of the charge blend, which is determined in real time. Source: Rolf Reitz.

Wisconsin 225

Wisconsin Gasoline Diesel Universal 225

Green Car Congress

JUNE 4, 2009

Researchers at Oak Ridge National Laboratory (ORNL) are investigating mechanisms for extending the efficiency of combustion engines closer to their theoretical potential. Today’s engines can deliver a fuel efficiency of 40-42%, with corresponding loss of initially available fuel energy of 58-60%. Stuart Daw. Click to enlarge.

Engine 150

Engine Exhaust Concept Universal 150

Green Car Congress

JUNE 11, 2016

The SIA conference was focused on clean compression-ignition engines of the future. Ricardo has previously reported on a simulation environment set up to enable the study of engine and after-treatment technology over RDE cycles, incorporating post-processing with the EMROAD and CLEAR tools. liter diesel engine. Click to enlarge.

Light 150

Light Diesel Price Exhaust 150

Green Car Congress

OCTOBER 10, 2013

liter Volkswagen light-duty diesel engine and Klam dynamometer running at various throttle and brake settings over a 9-mode steady-state cycle to enable triplicate time-resolved measurement of particle number distributions with a scanning mobility particle sizer. In the experiments, they used a 4-cylinder, 1.9-liter

B0 210

B0 Diesel Emissions Exhaust 210

Green Car Congress

AUGUST 7, 2017

Series-production plug-in hybrid electric vehicles equipped with diesel engines are already available in the market or planned for the future (e.g., Problems due to aged fuels can occur at the fuel pump, injection systems or exhaust aftertreatment. The increased viscosity leads to poorer nebulization during injection.

Plug-in 150

Plug-in Plug Fuel Hybrid 150

Green Car Congress

SEPTEMBER 2, 2015

A DFC stack can thus be used as a carbon purification membrane—transferring CO 2 from a dilute oxidant stream to a more concentrated fuel exhaust stream, allowing the CO 2 to be easily and affordably removed for sequestration or industrial use. Partners are the Linde Group, BASF, Burns & McDonnell, and Affiliated Engineers Inc.

Fuel 150

Fuel Coal CO2 Exhaust 150

Green Car Congress

AUGUST 26, 2013

Comparison between estimated EI BC and measured EI BC derived FOA3 (black open box), the FOA3 approach with the updated SN-CI correlation (blue triangle), and estimates obtained from the new FOX method (red circle) that are not dependent on SN. 1 g/kg-fuel) and is a function of engine model and thrust setting. Click to enlarge.

Emissions 199

Emissions Standards Carbon Exhaust 199

Green Car Congress

MAY 4, 2009

Comparisons of NO x , CO, soot, and engine brake power using different PS blends with the factory-set injection timings. Researchers at Iowa State University are proposing dissolving waste polystyrene (PS) in biodiesel for use as a diesel engine fuel as a mechanism for energy recovery from the waste plastic. Credit: ACS.

Waste 207

Waste Energy Iowa Diesel 207

Green Car Congress

APRIL 24, 2011

Comparison of optimized start of injection of advanced diesel combustion for brake thermal efficiency, NO x , PM, THC, and CO of diesel (open bar); HTFT (gray bar); and LTFT (black bar) fuels. THC and CO as well as NO x and PM—according to research by a team from The Pennsylvania State University. Credit: ACS, Lilik and Boehman.

Diesel 236

Diesel Pollution Fuel Emissions 236

Green Car Congress

APRIL 17, 2014

In a presentation at the SAE 2014 High Efficiency IC Engine Symposium and then in a paper given at SAE 2014 World Congress, Mark Sellnau, Engineering Manager, Delphi Advanced Powertrain, reported that Brake Specific Fuel Consumption for the 1.8L Earlier post , earlier post.). Background. Earlier post.) DOE UFEV program targets.

Gasoline 304

Gasoline Engine Fuel Wisconsin 304

Green Car Congress

MAY 12, 2017

A new study quantifying emissions from a fleet of gasoline direct injection (GDI) engines and port fuel injection (PFI) engines finds that the measured decrease in CO 2 emissions from GDIs is much greater than the potential climate forcing associated with higher black carbon emissions from GDI engines.

Fleet 207

Fleet Engine Global Fuel Economy 207

Green Car Congress

OCTOBER 12, 2010

The conditions whether cool flames can be stabilised or not is related to the heat release of the pre-reactions in comparison to the heat losses of the system. NPS acquired licensing rights to the cool flame reformer technology developed at RWTH Aachen University in the late 1990s. —Hartmann et al.

Norway 199

Norway Diesel Fuel Hydrogen 199

Green Car Congress

OCTOBER 20, 2012

L engines at idle. A new study led by researchers at the University of Michigan compared regulated and unregulated emissions from both light-duty passenger car (1.7 L) diesel engines at idle and load, using a biodiesel blend (B20) and conventional ultralow sulfur diesel (ULSD) fuel. L/2004 calibration engines.

Pollution 231

Pollution Diesel Emissions Engine 231

Green Car Congress

AUGUST 30, 2009

The Brazilian experience shows that the presence of small (<10%) amounts of water in the fuel does not in itself cause a greater tendency to misfire in spark ignition engines than a proportionate leaning of the fuel/air mixture would do, provided that the vapor pressure of the hydrated ethanol at the ambient temperature is high enough.

Transportation 317

Transportation Fuel Renewable Gasoline-Electric 317

Green Car Congress

SEPTEMBER 6, 2018

Now, researchers at the Technical University of Munich (TUM) as part of a separate project—the xME-Diesel project—have tested how OMEs behave in engines and have developed an optimized combustion process. First, the researchers did computer simulations and experiments on a single-cylinder engine testbed.

Engine 186

Engine Fuel Diesel Exhaust 186

Green Car Congress

APRIL 13, 2012

The first results of a comprehensive study of the health effects of exposure to new technology diesel engines has found no evidence of gene-damaging effects in the animals studied, and only a few mild effects on the lungs, according to a report issued today by the Health Effects Institute (HEI). —Dan Greenbaum, President of HEI.

Exhaust 207

Exhaust Diesel Engine 2007 207

Green Car Congress

NOVEMBER 7, 2016

In his introductory keynote, Michael Berube, Vehicle Technologies Office Director, Office of Energy Efficiency and Renewable Energy, noted the importance of both engine and fuel technology in a PHEV scenario. But to do that, we need to think about the engine. The focus is what fuel properties maximize engine perfromance.

PHEV 218

PHEV Engine Fuel Economy Economy 218

Green Car Congress

JANUARY 31, 2014

A study by a team at Tianjin University found that the addition of n-butanol to gasoline for use in a compression ignition engine (CI) under Low Temperature Combustion (LTC) conditions has a significant effect on soot reduction. For the given advantages, n-butanol has brighter application prospect as a CI engine fuel than ethanol.

Gasoline 210

Gasoline Engine Exhaust Emissions 210

Green Car Congress

DECEMBER 10, 2009

Comparison of fuel consumption of Omnivore, homogeneous Gasoline Direct Injection (GDI) and Spray-Guided GDI engines. The first testing phase of Lotus Engineering’s Omnivore variable compression ratio, flex-fuel direct injection two-stroke engine ( earlier post ) has been successfully completed on gasoline.

Fuel Economy 218

Fuel Economy Engine Light Fuel 218

Green Car Congress

APRIL 10, 2016

A team from Carnegie Mellon University (CMU) has characterized the intermediate volatility organic compound (IVOC) emissions from on-road gasoline vehicles (LDGVs) and small off-road gasoline engines (SOREs). In this study, IVOC emissions from LDGVs and SOREs were collected during chassis and engine dynamometer testing.

Gasoline 150

Gasoline Emissions Engine Exhaust 150