fuel efficiency directive Articles
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Development of automotive DI diesel engine to comply with stringent emission norms
Relatively lower fuel energy cost, higher fuel conversion efficiency and ability to take higher loads are the attracting features of direct injection diesel engines. However, diesel engines are still posing the challenges to both researchers and manufacturers in terms of high soot and NOx emissions. To overcome these difficulties, small diesel engine manufacturers are resorting to either upgrade ...
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Hydrogen-diesel dual fuel combustion in a direct injection diesel engine
Hydrogen is expected to be one of the most important fuels in the near future to meet the stringent emission norms. Hence in the present study, the combustion of hydrogen-diesel duel fuelled engine was investigated. Hydrogen was injected in the intake port during the suction stroke and diesel was injected inside the combustion chamber near TDC. The start of injection for hydrogen was maintained ...
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Investigation on combustion characteristics of crude rice bran oil methyl ester blend as a heavy duty automotive engine fuel
In the present work, an attempt was made to test the suitability of crude rice bran oil methyl ester (CRBME) blend as a heavy duty automotive engine fuel. A four stroke, six cylinder direct injection 117.6 kW turbo-charged compression ignition (CI) engine was used for the work. The operation of the engine with CRBME blend showed that the peak pressure increased with lower maximum rate of pressure ...
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Effect of hydrogen enriched air on the performance and emissions of mahua oil fuelled diesel engine
Neat vegetable oils as fuels for diesel engines give rise to engine performance and durability problems due to the differences in some of the properties between vegetable oils and diesel. The objective of the present work was to improve the performance of mahua oil fuelled diesel engine using hydrogen enriched air. Mahua oil was used as the main fuel in a direct injection diesel engine and ...
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The isoengine: realisation of a high-efficiency power cycle based on isothermal compression
A novel high-efficiency internal combustion engine for power generation and direct-drive applications is being developed. Distillate-fuelled power plants in units of 7 MW electrical output are predicted to reach a net electrical efficiency of 60%. An efficiency of 58% is targeted for the gas-fired version. This compares with a net electrical efficiency of about 45% for advanced reciprocating ...
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New Fuel Efficiency Standards for Heavy-Duty Vehicles Are a “Win-Win-Win”
America’s vehicles are on the road to becoming cleaner. Last week, President Obama directed his administration to set new fuel efficiency and greenhouse gas (GHG) emissions standards for medium- and heavy-duty vehicles, including large pick-up trucks, school buses, and tractors. Improving fuel efficiency standards from these vehicles—which make up 20 percent of U.S. transport ...
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The Beltran biomass cogeneration system
An effective, economical solution for harvesting safe, renewable domestic energy, mitigating wastes and achieving environmental goals. Background The Beltran Biomass Cogeneration System (BBCS) is an integrated, three-stage process that uses proprietary gasification technology to convert biomass and other organic wastes into versatile, cleanburning synthesis gas. The purified gas can then be ...
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Flow Energy Management: 3 Killer Apps to Lower Energy Costs
More and more, buzz words like “flow energy” or “flow energy management” have become prevalent as companies grapple to control costs, reduce energy use, and comply with government regulations—all while trying to increase profitability. But what are flow energy and flow energy management? Why should you care? In this three-part series, we will: Explore what flow ...
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