Author: Ananth Padmanabha Rao VemuriPublisher:
ISBN:
Category :
Languages : en
Pages : 154
Book Description
Performance and Emissions Testing of a Small Two Stroke Engine Using Mid-level Ethanol Blends
Author: Ananth Padmanabha Rao VemuriPublisher:
ISBN:
Category :
Languages : en
Pages : 154
Book Description
Experimental Investigations on Methyl Alcohol – Gasoline Blend Fueled Catalytic Coated Two Stroke Si Engine
Author: Dr. KOLLIPARA KISHORPublisher: Archers & Elevators Publishing House
ISBN: 9385640445
Category : Antiques & Collectibles
Languages : en
Pages :
Book Description
IMPACT OF E20 FUEL ON A HIGH-PERFORMANCE, TWO-STROKE ENGINE
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Abstract : The purpose of this project was to explore the emissions, combustion, and performance effects of running a gasoline/ethanol fuel mixture of 20 percent by volume (E20) in a fuel-injected, two-stroke engine. The engine was operated at five engine speeds that corresponded with the EPA 5-mode emissions test for snowmobile engines. Single parameter sweeps were conducted along with a preliminary recalibration of the test engine at two E0 target values (lambda and mid-pipe temperature) using E20 fuel. Baseline testing showed that running E20 fuel produced a leaner air/fuel mixture compared to E0, resulting in higher lambda values for all modes and higher mid-pipe temperatures in modes 1 and 2. The increase in lambda resulted in lower CO and THC emissions at all modes and an increase in formaldehyde and acetaldehyde emissions. An increase in CO2 and NO emissions followed the trend of increasing mid-pipe temperature at modes 1 and 2. Single parameter sweeps were performed by changing one engine parameter at a time and sweeping over a range of predetermined values. Engine parameters included injection time (duration), injection end angle, and ignition timing. Increasing the amount of fuel injected into the combustion chamber decreased lambda values, decreased mid-pipe temperatures, increased CO and THC emissions, and decreased CO2, NO, formaldehyde, and acetaldehyde emissions. Advancing the ignition timing decreased mid-pipe temperatures which decreased CO2, NO, formaldehyde, and acetaldehyde emissions. CO and THC emissions were increased with the advancement of ignition timing. Opposite trends could be seen with retarding ignition timing, except with NO emissions where retarding ignition timing also resulted in a reduction in NO emissions. Adjusting the injection end angle showed little effect on performance, but increases in CO2, NO, formaldehyde and acetaldehyde emissions were seen at large advances of degrees. Recalibration of injection parameters for E20 fuel to meet E0 baseline lambda values was performed by increasing the injection timing values in the ECU. This created a richer mixture at all modes when compared to the E20 baseline test, while some modes were still leaner than stoichiometric. Matching lambda values resulted in mid-pipe temperatures that were still higher than the E0 baseline test in modes 1 and 2. CO emissions were still lower in all modes except in mode 3 as well as THC emissions except for an increase of two percent in mode 1. CO2 and NO emissions saw a decrease in mode 1 although both values were still higher than the baseline E0 test. Meeting E0 mid-pipe temperatures with E20 fuel resulted in a higher lambda value at modes 1, 4 and 5. CO emissions followed these trends with higher values in modes 2 and 3 when compared to the E0 baseline test. CO2 emissions were opposite CO emissions with increases at modes 1, 4 and 5. NO and THC emissions saw an increase at mode 1 and decreases in modes 2 through 4.
Emissions from Two-Stroke Engines
Author: Marco NutiPublisher: SAE International
ISBN: 0768027853
Category : Technology & Engineering
Languages : en
Pages : 300
Book Description
"In the design of new CI engines, it is of paramount importance to reduce the pollutants and fuel consumption," writes author Marco Nuti. In this, the first book devoted entirely to exhaust emissions from two-stroke engines, Nuti examines the technical design issues that will determine how long the two-stroke engine survives into the twenty-first century. Dr. Nuti, director of Technical Innovation at Piaggio, thoroughly explores pollutant formation and control from unburned hydrocarbon emissions, carbon monoxide emissions, catalytic aftertreatment, and secondary air addition.
System Design and Performance Comparison of Blended Gasoline/ethanol Fuels in Semi-direct and Direct Injected Two-stroke Engines
Author: Nicholas J. HarkerPublisher:
ISBN:
Category : Alcohol
Languages : en
Pages : 112
Book Description
Automotive Fuels Reference Book
Author: Paul RichardsPublisher: SAE International
ISBN: 0768006384
Category : Technology & Engineering
Languages : en
Pages : 870
Book Description
The first two editions of this title, published by SAE International in 1990 and 1995, have been best-selling definitive references for those needing technical information about automotive fuels. This long-awaited new edition has been thoroughly revised and updated, yet retains the original fundamental fuels information that readers find so useful. This book is written for those with an interest in or a need to understand automotive fuels. Because automotive fuels can no longer be developed in isolation from the engines that will convert the fuel into the power necessary to drive our automobiles, knowledge of automotive fuels will also be essential to those working with automotive engines. Small quantities of fuel additives increasingly play an important role in bridging the gap that often exists between fuel that can easily be produced and fuel that is needed by the ever-more sophisticated automotive engine. This book pulls together in a single, extensively referenced volume, the three different but related topics of automotive fuels, fuel additives, and engines, and shows how all three areas work together. It includes a brief history of automotive fuels development, followed by chapters on automotive fuels manufacture from crude oil and other fossil sources. One chapter is dedicated to the manufacture of automotive fuels and fuel blending components from renewable sources. The safe handling, transport, and storage of fuels, from all sources, are covered. New combustion systems to achieve reduced emissions and increased efficiency are discussed, and the way in which the fuels’ physical and chemical characteristics affect these combustion processes and the emissions produced are included. There is also discussion on engine fuel system development and how these different systems affect the corresponding fuel requirements. Because the book is for a global market, fuel system technologies that only exist in the legacy fleet in some markets are included. The way in which fuel requirements are developed and specified is discussed. This covers test methods from simple laboratory bench tests, through engine testing, and long-term test procedures.
Exhaust Emissions of Low Level Blend Alcohol Fuels from Two-stroke and Four-stroke Marine Engines
Author: James M. Sevik (Jr.)Investigation of Performance and Emissions with Low Level Ethanol-gasoline Blends on a Passenger Car
Author: Bhat AnoopPerformance and Emissions of Diesel-gasoline-ethanol Blends in a Light Duty Compression Ignition Engine
Author: New Developments in Two Stroke Engines and Their Emissions
Author: Publisher:
ISBN: 9781560910725
Category : Technology & Engineering
Languages : en
Pages : 167
Book Description