Download or read book The development and demonstration of an E85 vehicle conversion with emphasis on cold start emissions and cold driveability written by Chieh-sheng Jason Ku and published by . This book was released on 1999 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conversion of a 1999 Silverado to Dedicated E85 with Emphasis on Cold Start and Cold Driveability written by and published by . This book was released on 2000 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Developments in Ultra Clean Gasoline Powered Vehicles written by Fuquan Zhao and published by SAE International. This book was released on 2004-03-08 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last several years, significant efforts have been directed toward the development of ultra-clean, gasoline-powered vehicles in the automotive industry. With the coming of increasingly stringent emissions legislation, this development is more critical now than ever before. This has lead to an increase in the technical information available. Advanced Developments in Ultra-Clean Gasoline-Powered Vehicles provides the reader with technical information including a description of fundamental processes, insight on technical issues, key trends, and future R&D directions.
Download or read book Fabrication and Testing of an Enhanced Ignition System to Reduce Cold start Emissions in an Ethanol E85 Light duty Truck Engine written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes an experimental investigation of the potential for an enhanced ignition system to lower the cold-start emissions of a light-duty vehicle engine using fuel ethanol (commonly referred to as E85). Plasma jet ignition and conventional inductive ignition were compared for a General Motors 4-cylinder, alcohol-compatible engine. Emission and combustion stability measurements were made over a range of air/fuel ratios and spark timing settings using a steady-state, cold-idle experimental technique in which the engine coolant was maintained at 25 C to simulate cold-running conditions. These tests were aimed at identifying the degree to which calibration strategies such as mixture enleanment and retarded spark timing could lower engine-out hydrocarbon emissions and raise exhaust temperatures, as well as determining how such calibration changes would affect the combustion stability of the engine (as quantified by the coefficient of variation, or COV, of indicated mean effective pressure calculated from successive cylinder pressure measurements). 44 refs., 39 figs.
Download or read book The Use of Exhaust Gas Recirculation to Optimize Fuel Economy and Minimize Emission in Engines Operating on E85 Fuel written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes activities conducted for the project "The Use of Exhaust Gas Recirculation to Optimized Fuel Economy and Minimize Emissions in Engines Operating on E85 Fuel" under COOPERATIVE AGREEMENT NUMBER DE-FC26-07NT43271, which are as outlined in the STATEMENT OF PROJECT OBJECTIVES (SOPO) dated March 2007 and in the supplemental SOPO dated October 2010. The project objective was to develop and demonstrate an internal combustion engine that is optimized for E85 (85% ethanol and 15% gasoline) fuel operation to achieve substantially improved fuel economy while operating with E85 fuel and that is also production viable in the near- to medium-term. The key engine technology selected for research and development was turbocharging, which is known to improve fuel economy thru downsizing and is in particular capable of exploiting ethanol fuel's characteristics of high octane number and high latent heat of vaporization. The engine further integrated synergistic efficiency improving technologies of cooled exhaust gas recirculation (EGR), direct fuel injection and dual continuously variable intake and exhaust cam phasers. On the vehicle level, fuel economy was furthered thru powertrain system optimization by mating a state-of-the-art six-speed automatic transmission to the engine. In order to achieve the project's objective of near- to medium-term production viability, it was essential to develop the engine to be flex-fuel capable of operating with fuels ranging from E0 (0% ethanol and 100% gasoline) to E85 and to use three-way type of catalyst technology for exhaust aftertreatment. Within these scopes, various technologies were developed through systems approach to focus on ways to help accelerate catalyst light-off. Significant amount of development took place during the course of the project within General Motors, LLC. Many prototype flex-fuel engines were designed, built and developed with various hardware configurations selected to achieve the project goals. Several flex-fuel demonstration vehicles were designed and built for carrying out calibration development and final testing to quantify the technology merits. Based on the extensive test results collected from dynamometer and vehicle testing, the fuel economy benefits of cooled EGR from the intended level of turbocharger technology were quantified. When combined with turbo downsizing, the FE benefits are considered large enough for E0 fuel as well as for E85 fuel to warrant further development of the technology beyond the current proof-of-concept level to a level that can meet production driveability quality and durability requirements in order to meet customers' expectations. Cold-start cart test results from the emissions segment of the project were positive, confirming the assumption of faster thermal response of turbo exhaust system for emissions reductions for both E0 and E85 fuels. Vehicle emissions test results directionally correlated to the cold-start cart findings. The limited number of test runs did demonstrate the potentials of meeting stringent emission standards, however, they did not comprehend the factors such as hardware variability and long-term durability, 3 which are essential for mass production to satisfy customers' expectations. It is therefore recommended, moving forward, durability concerns over turbocharger, EGR system and aftertreatment system, which would likely impact production viability, should be addressed. The data moreover suggested that further FE increase is likely with turbocharger technology advancement.
Download or read book Advanced Direct Injection Combustion Engine Technologies and Development written by H Zhao and published by Elsevier. This book was released on 2014-01-23 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Direct injection enables precise control of the fuel/air mixture so that engines can be tuned for improved power and fuel economy, but ongoing research challenges remain in improving the technology for commercial applications. As fuel prices escalate DI engines are expected to gain in popularity for automotive applications. This important book, in two volumes, reviews the science and technology of different types of DI combustion engines and their fuels. Volume 1 deals with direct injection gasoline and CNG engines, including history and essential principles, approaches to improved fuel economy, design, optimisation, optical techniques and their applications. Reviews key technologies for enhancing direct injection (DI) gasoline engines Examines approaches to improved fuel economy and lower emissions Discusses DI compressed natural gas (CNG) engines and biofuels
Download or read book Development of an Improved Computer Simulation of Vehicle Emissions During Cold Start and Warm Up Operation written by United States Environmental Protect Epa and published by Independently Published. This book was released on 2019-01-26 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Development of an Improved Computer Simulation of Vehicle Emissions During Cold Start and Warm-Up Operation
Download or read book Technologies for Near Zero Emission Gasoline Powered Vehicles written by Fuquan Zhao and published by SAE International. This book was released on 2006-10-23 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr. Fuquan (Frank) Zhao and experts in the field address a broad spectrum of key research and development issues in the rapidly progressing area of near-zero-emission gasoline-powered vehicles. Written in response to the increasingly stringent emissions legislation, this book provides the reader with a concise introduction to technology developments in near-zero-emission gasoline-powered vehicles. The material reflects global technical initiatives within the automotive and research communities. In all, this book contains more than 450 pages, with nearly 200 descriptive diagrams and/or images. It will serve as a valuable desk reference and provide the basics for those who are interested in understanding this advancing technology.
Download or read book Fabrication and Testing of an Enhanced Ignition System to Reduce Cold start Emissions in an Ethanol E85 Light duty Truck Engine written by D. P. Gardiner and published by . This book was released on 1997 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Literature Abstracts written by Society of Automotive Engineers and published by . This book was released on 2000 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of a Cold Start Fuel Produced by an Active Vapor Utilization System for Use in Gasoline Powered Vehicles written by John William Crawford and published by . This book was released on 2009 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research focuses on the continuous development of the Active Vapor Recovery System (AVUS) which has the potential to reduce unburned hydrocarbon emissions from automobiles. The AVUS collects, condenses and stores hydrocarbon vapors from the fuel tank and saves them in a pressurized storage tank for later use as a cold starting fuel. This highly volatile starting fuel has the capability to reduce tailpipe emissions that occur during cold starts, as well as evaporative emissions that occur while the vehicle is at rest. Instead of commercial gasoline, the bench top AVUS was run using a five component fuel composed of 25% iso-pentane, 17.5% hexane, 17.5% heptanes, 17.5% toluene, and 22.5% isooctane; as well as an E85 mixture composed of 15% five component fuel and 85% ethanol. The condensate produced from AVUS was then analyzed using simple gas chromatograph techniques and found to have as much as 75% iso-pentane. Such a mixture would be an excellent starting fuel. Successive tests on the same batch of fuel proved that AVUS can produce this starting fuel without depleting the parent fuel of the species needed for non-AVUS starts. Index of refraction and infrared tests were also used in an attempt to establish reliable correlations between the condensate composition, refractive index, and infrared absorption that could be used for onboard analysis of the starting fuel. However, index of refraction results were found to be inconclusive while infrared testing proved to have great potential for determining alcohol concentration.
Download or read book Fabrication and Testing of an Enhanced Ignition System to Reduce Cold start Emissions in an Ethanol E85 Light duty Truck Engine written by D. P. Gardiner and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gasoline Distillation Effect on Vehicle Cold Start Driveability written by Pat Y. Geng and published by . This book was released on 2007 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cold start Emissions of an SI Engine Using Ethanol gasoline Blended Fuel written by Rong-Horng Chen and published by . This book was released on 2011 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Index abstracts of SAE Technical Papers written by and published by . This book was released on 2007 with total page 1218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Demonstration of Oxygen enriched Combustion System on a Light duty Vehicle to Reduce Cold start Emissions written by and published by . This book was released on 1997 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The oxygen content in the ambient air drawn by combustion engines can be increased by polymer membranes. The authors have previously demonstrated that 23 to 25% (concentration by volume) oxygen-enriched intake air can reduce hydrocarbons (HC), carbon monoxide (CO), air toxics, and ozone-forming potential (OFP) from flexible-fueled vehicles (FFVs) that use gasoline or M85. When oxygen-enriched air was used only during the initial start-up and warm-up periods, the emission levels of all three regulated pollutants [CO, nonmethane hydrocarbons (NMHC), and NO(subscript x)] were lower than the U.S. EPA Tier II (year 2004) standards (without adjusting for catalyst deterioration factors). In the present work, an air separation membrane module was installed on the intake of a 2.5-L FFV and tested at idle and free acceleration to demonstrate the oxygen-enrichment concept for initial start-up and warm-up periods. A bench-scale, test set-up was developed to evaluate the air separation membrane characteristics for engine applications. On the basis of prototype bench tests and from vehicle tests, the additional power requirements and module size for operation of the membrane during the initial period of the cold-phase, FTP-75 cycle were evaluated. A prototype membrane module (27 in. long, 3 in. in diameter) supplying about 23% oxygen-enriched air in the engine intake only during the initial start-up and warm-up periods of a 2.5-L FFV requires additional power (blower) of less than one horsepower. With advances in air separation membranes to develop compact modules, oxygen enrichment of combustion air has the potential of becoming a more practical technique for controlling exhaust emissions from light-duty vehicles.
Download or read book CRC Low and Intermediate Temperature Driveability Program Using Gasoline Alcohol Blends written by COORDINATING RESEARCH COUNCIL INC ATLANTA GA. and published by . This book was released on 1990 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: A cooperative test program was conducted in 1986 and 1987 to characterize the relationship between cold-start and warmup driveability and gasoline volatility parameters of T10, T50, and T90 distillation temperatures. Hydrocarbon-only and gasoline-alcohol blends were tested. The test program was divided into two phases: the intermediate-temperature (40 F to 60 F) phase was conducted in Paso Robles, California, from October 13 through November 14, 1986; and the low-temperature (10 F to 40 F) phase was conducted in Brainerd, Minnesota, from January 19 through February 18, 1987. Driveability was better with high volatility fuels, and at intermediate ambient temperatures. Fuel-injected vehicles exhibited better driveability than carbureted vehicles. Driveability with hydrocarbon-only gasolines with significantly better than gasoline-ethanol blends, and gasoline-methanol:TBA blends. Compared with gasoline-methanol:TBA blends gasoline-ethanol blends gave significantly better driveability. Regression equations which related volatility to vehicle cold-start and warmup driveability were developed for both temperature phases. (JES).
