Results 211 to 220 of about 66,903 (261)
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CERAMIC GAS TURBINES FOR IMPROVED SPECIFIC FUEL CONSUMPTION
Naval Engineers Journal, 1975ABSTRACTThe use of ceramics in gas turbines allows significantly higher inlet temperatures (2500° F) without the necessity of complex cooling designs. A review is presented of the present status of two turbines presently under ARPA sponsorship. The properties, costs, and required design considerations for ceramics are highlighted.
E. C. VAN REUTH +2 more
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Fast extremum seeking for optimization of brake specific fuel consumption
53rd IEEE Conference on Decision and Control, 2014Extremum seeking control is a well-established technique for dealing with the online optimization of unknown dynamic systems. However, in many applications the convergence rate of traditional extremum seeking approaches is a limiting factor, largely arising from the need for full time scale separation between the elements of the closed loop system ...
Sharafi, Jalil +5 more
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A Method of Predicting Brake Specific Fuel Consumption Maps
SAE Technical Paper Series, 1999<div class="htmlview paragraph">A method of predicting brake specific fuel consumption characteristics from limited specifications of engine design has been investigated. For spark ignition engines operating on homogeneous mixtures, indicated specific fuel consumption based on gross indicated power is related to compression ratio and spark timing
P. J. Shayler, J. P. Chick, D. Eade
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Friction optimisation and its effect on specific fuel consumption
MTZ worldwide, 2009As part of a complete-engine development project by Mahle, various optimisation measures were investigated on a modern baseline engine and analysed for their ability to improve the friction behavior of the engine. In addition to evaluation criteria such as feasibility and cost, the main emphasis was placed on increasing the effective efficiency in the ...
Jörg Rückauf, Boris Lerch
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Transportation Research Part D: Transport and Environment, 2001
The Dutch car-fleet specific fuel consumption has not shown any decrease since 1990. The main reasons for the car-fleet specific fuel consumption no longer showing a decrease after 1990, namely, increases in vehicle weight and cylinder capacity, have been concluded from an analysis of Dutch car-fleet specific fuel consumption in the period 1980–1997 ...
van den Brink, R., van Wee, B.
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The Dutch car-fleet specific fuel consumption has not shown any decrease since 1990. The main reasons for the car-fleet specific fuel consumption no longer showing a decrease after 1990, namely, increases in vehicle weight and cylinder capacity, have been concluded from an analysis of Dutch car-fleet specific fuel consumption in the period 1980–1997 ...
van den Brink, R., van Wee, B.
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Analysis of Specific Fuel Consumption Data from Nebraska Tractor Tests
SAE Technical Paper Series, 1996<div class="htmlview paragraph">Specific fuel consumption data from Nebraska Tractor Tests, conducted over a period of 11 years (from 1983 through 1994), were analyzed. The analysis showed that specific fuel consumption increases as the power level decreases. Specific fuel consumption decreases when the technique “gear up-throttle down” (GUTD) is
Eduardo G. de Souza, Louis I. Leviticus
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Development of Variable Temperature Brake Specific Fuel Consumption Engine Maps
SAE Technical Paper Series, 2010<div class="section abstract"><div class="htmlview paragraph">Response Surface Methodology (RSM) techniques are applied to develop brake specific fuel consumption (BSFC) maps of a test vehicle over standard drive cycles under various ambient conditions.
Forrest Jehlik, Eric Rask
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Optimizing Separate Exhaust Turbofans for Cruise Specific Fuel Consumption
Volume 1: Aircraft Engine; Fans and Blowers; Marine, 2016Cruise specific fuel consumption (SFC) of turbofan engines is a key metric for increasing airline profitability and for reducing CO2 emissions. Although increasing design bypass ratio (BPR) of separate exhaust turbofan configurations improves cruise SFC, further improvements can be obtained with control actuated variable geometry modulations of core ...
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Fuel specification, energy consumption and CO2 emission in oil refineries
Energy, 2007Abstract The more stringent environmental quality specifications for oil products worldwide are tending to step up energy use and, consequently, CO 2 emissions at refineries. In Brazil, for example, the stipulated reduction in the sulfur content of diesel and gasoline between 2002 and 2009 should increase the energy use of Brazil's refining industry
A SZKLO, R SCHAEFFER
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Marine Systems & Ocean Technology, 2016
Low-speed diesel engines are the most used ones in large ships as main propulsion, and due to severe environmental rules, there has been an intensive search for using alternative fuels which generate less emissions in these engines. In this context, dual-fuel diesel engines have been developed and their employment keeps growing.
Crístofer H. Marques +1 more
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Low-speed diesel engines are the most used ones in large ships as main propulsion, and due to severe environmental rules, there has been an intensive search for using alternative fuels which generate less emissions in these engines. In this context, dual-fuel diesel engines have been developed and their employment keeps growing.
Crístofer H. Marques +1 more
openaire +1 more source