Remove 2011 Remove Emissions Remove Exhaust Remove Fuel
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MAN ES reports Tier III exhaust-after-treatment orders for low-speed engines pass 1,000

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MAN Energy Solutions’ Two-Stroke Business has surpassed 1,000 orders for secondary-measure, Tier III-compliant, emission-reduction technology for its portfolio of MAN B&W-branded, low-speed ship engines. Currently, almost half of all orders have entered active service.

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The importance of considering non-exhaust traffic emissions; the role of EVs

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Regulatory regimes seeking to reduce emissions from transport have largely focused on tailpipe emissions—i.e., the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. Non-exhaust PM factors include tire wear, brake wear, road surface wear and resuspension of road dust. earlier post ). Background.

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Effect of syngas composition on combustion and exhaust emission characteristics in a dual-fuel engine operated in PREMIER combustion mode

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Researchers at Okayama University (Japan) found that conventional combustion in a pilot-ignited, supercharged duel-fuel engine powered with different types of syngas at various equivalence ratios can be transformed into combustion with two-stage heat release. The H 2 and CO 2 content of syngas affected the engine performance and emissions.

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Environment Canada/MECA team assesses black carbon emissions in GDI engine exhaust; evaluation of prototype gasoline particulate filter

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BC mass emissions for all four GDI and PFI vehicles over the three different driving patterns. This may result in the need for new emissions control strategies—such as a gasoline particulate filter (GPF)—to enable compliance with California LEV III and US EPA Tier 3 particulate emissions standards. Click to enlarge.

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Environment Canada study finds vehicle exhaust a significant source of isocyanic acid; suggests consideration of new emission standard

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Researchers at Environment Canada have found that vehicle exhaust is a significant source of isocyanic acid (HNCO), a toxic gaseous acid that is a product of various forms of combustion and a potential health concern. mg kg fuel –1 and were significantly higher than previous biomass burning emission estimates.

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NASA begins ACCESS flight research to study effects of biojet fuels on engine performance, emissions and contrails

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NASA researchers have begun a series of flights using the agency’s DC-8 flying laboratory to study the effects of alternate biofuel on engine performance, emissions and aircraft-generated contrails at altitude. Survey black carbon and gas-phase emissions and contrail properties from commercial aircraft at cruise in air-traffic corridors.

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ICCT finds growth in shipping in Arctic could increase pollutant emissions 150-600% by 2025 with current fuels

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Comparison of the potential reduction in emissions with the application of lower sulfur 0.5% fuel for Arctic vessels assuming a low-growth scenario. The new paper provides emissions estimate for the projected traffic growth outlined in that earlier report. Source: ICCT. Click to enlarge. Regulatory background. Earlier post.).

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