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DieselNet: Internal Combustion Engine & Emission Technology

Engine & emission technology online—since 1997

The Log

22 July 2021: Our updated summary of European PTI emission tests covers the recent adoption of PTI-PN particulate filter checks using particle number counters in Belgium and Germany.

14 July 2021: The European Commission unveiled an unprecedented climate action plan, dubbed ‘Fit for 55’, that sets a goal to reduce carbon emissions by 55% by 2030, compared to 1990 levels. From 1990 to 2019 the EU reduced emissions by 24%. Under today’s proposal, emission would have to decline by another 31% in just 9 years [more ...]

13 July 2021: BP released its annual Statistical Review of World Energy, which shows that the global primary energy consumption fell by 4.5% and carbon emissions fell by 6% in 2020, as a result of the Covid-19 crisis. While renewables were the only form of energy to see increased demand, wind and solar generation still plays a marginal role in the global energy supply, the data shows [more ...]

9 July 2021: Emission standards—Added summary of Canadian emission standards for compression-ignition stationary engines.

6 July 2021: Hydrogen and other P2X synthetic fuels are expected to power future transportation sectors that are ‘difficult to electrify’—these include most of today’s heavy commercial goods transport as well as construction and agricultural machinery. P2X technologies will be discussed at the #P2X4A: From production to application conference, to be held on 12-13 October 2021 in Frankfurt, Germany. The meeting is planned as an in-person event, where you can actually interact with others, and the registration is now open. The conference is organized by VDMA, who is also one of the signers of the Open Letter: Fossil fuels are the problem, not the engine.

30 June 2021: For your reading pleasure, a summary of the technical sessions from the 24th ETH Conference on Combustion Generated Nanoparticles held online on June 22-24 [more ...]

29 June 2021: Emissions Analytics, now on DieselNet, is the testing and data specialist for real-world emissions.

22 June 2021: While the use of renewable energy has increased, fossil fuels remain a dominant source of energy for the world, according to the Renewables 2021 Global Status Report by REN21. In relative terms, renewables grew almost 5% per year between 2009 and 2019, outpacing fossil fuels (1.7%). But in absolute terms, coal, oil, and natural gas satisfied some 75% of the global energy demand growth over the decade [more ...]

15 June 2021: CIMAC has announced a Call for Papers for the 2022 CIMAC Congress. Next year in Busan, South Korea, the Congress will be held for the 30th time [more ...]

10 June 2021: Updated Technology Guide paper on Crankcase Ventilation—added more discussion on turbocharger impacts of closed crankcase ventilation.

9 June 2021: It is time to register for the Integer Vehicle Emissions Live virtual conference that will be held on June 15-17. Organized by Argus Media, the conference will explore key opportunities to enhance the diesel engine and meet new emission standards, as well as the market trends for AdBlue/DEF. The program includes talks by leading fuel, engine, and vehicle OEMs, as well as updates from regulatory authorities in the USA, UK, and India. DieselNet readers can receive a 10% discount off the standard rates—please contact Anita Agyeman to claim this offer.

30 May 2021: The May 2021 issue of DieselNet Update—our monthly newsletter—is now available for your reading pleasure.

28 May 2021: Emission standards: Added summary of the European Real Driving Emissions (RDE) test for light-duty vehicles.

27 May 2021: Updated Technology Guide paper on Electrically Regenerated Filters—added discussion of the Rypos and the HJS SMF electrically regenerated filters.

22 May 2021: 3DATX Corporation, a developer of miniature portable emission measurement system (Mini-PEMS), updated their DieselNet Business Page to better reflect their current product portfolio.

21 May 2021: Our updated Technology Guide paper on Oil Service Classifications now covers the European Oil Sequences 2021 recently released by ACEA.

19 May 2021: The International Energy Agency (IEA) released its Net Zero by 2050 report, which calls for no new investment in fossil fuel supply. The pathway to reach net-zero GHG emissions by 2050 “remains narrow and extremely challenging”—it contains no new oil and gas fields approved for development, and no new coal mines or mine extensions beyond those that have already been committed to. By 2050, coal consumption would have to fall by 90%, oil by 75%, and natural gas by 55%. The report also envisions that the transition to a net zero energy system by 2050 could be accompanied by “robust economic growth”. Considering that our industrial economy is powered in more than 80% by fossil fuel energy, this plan is indeed very challenging, to say the least. The report reflects a sharp change in course by the IEA—in the past, the agency had issued a number of stark warnings that the global energy investment was falling short of what would be needed to meet future global energy demand.

5 May 2021: The International Energy Agency released a special report that examines the central importance of minerals such as copper, lithium, nickel, cobalt and rare earth elements in a secure and rapid transformation of the global energy sector [more ...]

30 April 2021: For your reading pleasure, a summary of engine and emission sessions from that SAE WCX 2021 Digital Summit held on April 12-15, 2021 [more ...]

20 April 2021: The IEA expects the global GDP to increase by 6% in 2021 relative to 2020 and by more than 2% relative to 2019. This level of economic activity will require a steep increase in energy demand, causing a sharp growth in CO2 emissions [more ...]

13 April 2021: CIMAC announced their first Tech-Talk web event on the topic The Value of Digitalization in the Maritime Industry on Thursday, April 22, 2021 between 14:00-15:00 CEST. The event is organized by the CIMAC Digitalization Strategy Group. More details regarding the Tech-Talk and a registration link are available on the CIMAC website.

9 April 2021: Presentations from the 11th VERT Forum are now available online. The Forum, held online on March 25th, discussed technologies and policies towards zero-impact combustion engines, and reviewed emission reduction initiatives and programs spearheaded by the VERT Association in many countries around the world.

8 April 2021: The three regions of Belgium—the Flemish and Walloon Regions and the Brussels-Capital Region—have reached an agreement to implement a particle number test during the annual vehicle inspection of diesel cars (PTI-PN), to detect tampering with diesel particulate filters [more ...]

7 April 2021: Emission standards—Added summaries of California zero emission vehicle (ZEV) programs for light-duty vehicles and for heavy-duty trucks.

25 March 2021: Emission standards—Updated summary of US emission standards for heavy-duty engines covers the California low NOx regulation that becomes effective in 2024/2027.

Diesel Engine & Emissions

The diesel engine is the most efficient power plant among all known types of internal combustion engines. Heavy trucks, urban buses, and industrial equipment are powered almost exclusively by diesel engines all over the world. For the foreseeable future, the world’s transportation needs will continue to rely on the diesel engine and its gasoline counterpart. However, both engine technologies have been evolving to meet two major challenges: lower emissions and increased energy efficiency.

Internal combustion engines are significant contributors to air pollution. In response, clean diesel technologies with near-zero emissions of NOx and PM have been developed and introduced in regions with the most stringent emission standards. As this trend spreads to other parts of the world, the environmental focus has shifted to climate changing emissions and energy efficiency. The environmental benefit of low greenhouse gas emissions, traditionally associated with the diesel engine, is no longer sufficient. To meet future greenhouse gas and fuel economy regulations, new technologies are being developed—low temperature combustion, waste heat recovery, powertrain electrification, to name a few—that further increase the efficiency not only of the diesel engine powertrain but the entire vehicle as well. Under low-carbon regulatory policies, the scope for potential improvements is no longer limited to engines and vehicles, but also includes life cycle effects of fuel production and vehicle manufacture.

DieselNet, the only information service exclusively devoted to internal combustion engines and emissions, is an internet knowledge base for technical and business information on diesel engines, fuels, emissions and technologies required by the clean and efficient diesel engines of the future.