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DieselNet: Internal Combustion Engine & Emission Technology

Engine & emission technology online—since 1997

The Log

24 May 2020: 3DATX Corporation developed a range of parSYNC® iPEMS portable emission analyzers that can measure PM/PN, NO/NO2/NOx, CO and CO2 emissions.

19 May 2020: A new Technology Guide paper on Engine Efficiency—a must-read primer for anyone who strives to deepen his understanding of energy losses in internal combustion engines. Some sections of the new paper were previously a part of the Engine Fundamentals paper, which has been updated as well.

9 May 2020: TSI Incorporated develops and manufactures state-of-the-art instruments to quantify and analyze particle emissions from light-duty and heavy-duty engines, including particle counters, particle size distribution analyzers, and sample conditioning systems.

30 April 2020: Summary of the 41st International Vienna Motor Symposium, which was held this year as a ‘virtual event’ [more ...]

20 April 2020: A historic day for oil markets—WTI (West Texas Intermediate) crude for May delivery traded negative for the first time ever, at one point reaching a negative $40 per barrel, and settled for the day at negative $37.63 a barrel. This means, oil producers and/or traders must pay to have oil taken off their hands. Oil prices appear to be dragged down by concerns that US crude storage capacity may be filling up. Some Canadian blends fell into the negative territory as well.

16 April 2020: Global oil demand will drop by 27% in April and by some 10% for the entire year, according to a report by Rystad Energy. This drop in energy consumption, while most devastating to the world’s economy, is actually inline with the targets of the Paris Agreement [more ...]

9 April 2020: The summary of emission standards for stationary engines in Germany has been updated with the requirements of the 44th BImSchV regulation.

6 April 2020: A new Technology Guide paper covers Renewable Hydrocarbon Fuels such as those produced via hydrogenation of vegetable oils. Two related papers have also been updated: Alternative Fuels and Biodiesel—Mono Alkyl Esters.

1 April 2020: US EPA and NHTSA released a final rule setting corporate average fuel economy (CAFE) and CO2 emission standards for model years 2021-2026 passenger cars and light trucks, relaxing the standards adopted in 2012 [more ...]

30 March 2020: Summary of the technical sessions from the 11th International AVL Exhaust Gas and Particulate Emissions Forum held in Ludwigsburg, Germany on March 3-4, 2020—one of the last conferences before the Coronavirus shutdown [more ...]

25 March 2020: European industry associations representing the non-road mobile machinery (NRMM) sector have called on the EU to adopt an imminent moratorium on NRMM exhaust emission regulations in response to disruptions caused by the COVID-19 pandemic. Due to the current disruption of the global supply chain, the industry will not be able to produce machinery with the already produced and procured Stage IV ‘transitional’ engines and to place it on the market before the Stage V regulatory deadlines [more ...]

23 March 2020: Updated Technology Guide paper about Gasoline Particulate Filters.

19 March 2020: Updated Technology Guide paper about Synthetic Diesel Fuel.

13 March 2020: Due to government actions to contain the corona virus, technical conferences are being canceled en masse all over the world. The latest casualties include the SAE WCX Congress and the ETH Nanoparticle conference. Please see our updated Calendar of Events and cancel your bookings for events that have been postponed.

9 March 2020: The United States may need to encourage mergers within the oil industry and effectively create a state-backed oil company to ensure uninterrupted oil and gas production from shale formations, reports Reuters. Shale drilling has been struggling since its beginnings. Chevron, one of the big players in the Permian basin, lost $5 billion last year when the average price for West Texas Intermediate was $57 a barrel. Today, that benchmark fell to just over $31 a barrel. The US government could quietly encourage industry consolidation. It could also take a page from the financial crisis playbook by backstopping debt or creating a fund to absorb bad loans. That would make it easier for shale drillers to keep operating, despite steep losses.

25 February 2020: Heavy-duty diesel and natural gas engines from Liebherr, for agricultural, construction, mining and oil & gas applications.

20 February 2020: The updated summary of Brazilian emission standards for light-duty vehicles now covers PROCONVE L-7 and L-8 emission regulations.

14 February 2020: The deadline for submitting paper offers for the SAE Powertrains, Fuels & Lubricants Meeting to be held September 22-24, 2020 in Kraków, Poland has been extended to February 28th [more ...]

13 February 2020: For your reading pleasure, we have updated and refreshed two more Technology Guide papers on fuel injection: Fuel Injection for Clean Diesel Engines and Common Rail Fuel Injection System Components.

12 February 2020: A Finnish government report warns that the increasingly unsustainable economics of the oil industry may lead to a major disturbance in the global financial system and energy markets [more ...]

11 February 2020: Global CO2 emissions were unchanged at 33 Gt in 2019 even as the world economy expanded by 2.9%, according to data by the International Energy Agency (IEA). Emissions decreased in the EU, USA, and Japan, and increased by about the same amount in the rest of the world. The decrease of emissions in advanced economies was attributed to switching from coal to natural gas and renewables for power generation, milder weather compared with 2018, and weaker global economic growth. The United States saw the largest decline in energy-related CO2 emissions in 2019 on a country basis—a fall of 140 Mt, or 2.9%, to 4.8 Gt. US emissions are now down almost 1 Gt from their peak in 2000, the largest absolute decline by any country over that period. Energy-related CO2 emissions in the European Union, including the UK, dropped by 160 Mt, or 5%, to 2.9 Gt. The power sector drove the trend, with a decline of 120 Mt of CO2, or 12%, resulting from increasing renewables and switching from coal to gas. Emissions outside advanced economies grew by close to 400 Mt in 2019, with almost 80% of the increase coming from Asia.

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.