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Toyota commissions Yamaha to develop hydrogen-fueled 5.0L V8; follow-on from Nov 2021 announcement

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Hydrogen: not a stand-in for gasoline. As I watched this, I started to believe that there is actually enormous potential in the characteristics unique to hydrogen engines instead of simply treating it as a substitute for gasoline. —Yamaha President Hidaka at the Nov 2021 venue. —Takeshi Yamada.

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Review: Chevrolet Silverado 2500HD with bi-fuel CNG option

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In the case of the 2500HD bi-fuel, the two main trade-offs are a reduction in power and torque in CNG mode compared to gasoline mode, and the loss of a portion of the bed of the truck to the 3,600 psi CNG tank and its box-like enclosure. (It Emissions reductions (%) of new NGVs compared to new gasoline and diesel vehicles (2012).

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

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the criteria pollutants and CO 2 that emerge with the exhaust from the tailpipe. However, there is more than 15 years of research showing that the contribution of non-exhaust primary particles to the total traffic generated primary particles is significant in urban areas. Further, a 2013 review by Denier van der Gon et al.

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Small-displacement two-stroke H2 engine could address performance and emissions cost-effectively for recreational market; potential for Asian motor vehicle fleet

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Comparison of brake thermal efficiency and specific fuel consumption at rated power (ICOMIA Mode 5), hydrogen vs. gasoline engines. This is due to raw, externally premixed fresh charge comprising air, fuel and lube oil being short-circuited into the exhaust during the scavenging process. Oh and Plante. Click to enlarge. g/kWh with a 3.3%

Engine 329
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Study finds total PM10 emissions from EVs equal to those of modern ICEVs; role of weight and non-exhaust PM

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A new study by a team from the University of Edinburgh and independent engineering company INNAS BV has found that, when factoring in the additional weight and non-exhaust PM factors, total PM 10 emissions from electric vehicles (EVs) are equal to those of modern internal combustion engine vehicles (ICEVs). Click to enlarge.

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EEA report: EVs are better for climate and air quality

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Battery electric cars emit less greenhouse gases and air pollutants over their entire life cycle than petrol and diesel cars, according to a European Environment Agency (EEA) report. Emissions are usually higher in the production phase of electric cars, but these are more than offset by lower emissions in the use phase over time.

Climate 268
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Ricardo, Geely to present high-efficiency Magma xEV engine for hybrid applications at Aachen

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At the Aachen Colloquium next week, Ricardo and Geely will present research work into the application of the Ricardo Magma xEV gasoline engine concept into a commercial vehicle series hybrid powertrain, delivering 45% brake thermal efficiency. A long exhaust stroke then extracts maximum efficiency.

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