Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 25
Book Description
Measurements of Mixture Effects on Late-Injection Low-Temperature Diesel Combustion in a Heavy-Duty Diesel Engine
Author: Modelling Diesel Combustion
Author: P. A. LakshminarayananPublisher: Springer Nature
ISBN: 981166742X
Category : Technology & Engineering
Languages : en
Pages : 419
Book Description
This book comprehensively discusses diesel combustion phenomena like ignition delay, fuel-air mixing, rate of heat release, and emissions of smoke, particulate and nitric oxide. It enables quantitative evaluation of these important phenomena and parameters. Most importantly, it attempts to model them with constants that are independent of engine types and hence they could be applied by the engineers and researchers for a general engine. This book emphasizes the importance of the spray at the wall in precisely describing the heat release and emissions for most of the engines on and off-road. It gives models for heat release and emissions. Every model is thoroughly validated by detailed experiments using a broad range of engines. The book describes an elegant quasi-one-dimensional model for heat release in diesel engines with single as well as multiple injections. The book describes how the two aspects, namely, fuel injection rate and the diameter of the combustion bowl in the piston, have enabled meeting advanced emission, noise, and performance standards. The book also discusses the topics of computational fluid dynamics encompassing RANS and LES models of turbulence. Given the contents, this book will be useful for students, researchers and professionals working in the area of vehicle engineering and engine technology. This book will also be a good professional book for practising engineers in the field of combustion engines and automotive engineering.
The Characterization of Two-Stage Ignition Effects on Late Injection Low Temperature Combustion Using Biodiesel and Biodiesel Blends
Author: Brandon Tirrell TompkinsPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The first stage of ignition in saturated hydrocarbon fuels (in diesel combustion) is characterized as low temperature heat release (LTHR) or cool flame combustion. LTHR takes place as a series of isomerization reactions at temperatures from 600K to 900K, and is often detectable in HCCI, rapid compression machines, and early injection low temperature combustion (LTC). The experimental investigation presented attempts to determine the existence of LTHR behavior in late injection low temperature combustion in a medium duty diesel engine with both petroleum diesel and biodiesel fuels and to determine the influence of such behavior on LTC torque and emissions. Three experiments were performed to meet these objectives: the first studies two operating modes (conventional combustion with -8° after top dead center injection timing and 0% EGR and low temperature combustion with 0° after top dead center injection timing and nominally 42% EGR level) with standard petroleum diesel, palm biodiesel, and soy biodiesel; the second studies a sweep of EGR level from 0% to nominally 45% with petroleum diesel and palm biodiesel with a constant injection timing of 0° after top dead center. The third and final experiment utilized petroleum diesel, soy biodiesel, and blends from the two fuels (20 and 50% soy biodiesel) to see the influence of viscosity and density on LTHR. LTHR is apparent in all fuels' rates of heat release profiles at the LTC operating conditions. Diesel fuel LTC displays a longer and more intense LTHR phase. Lower amounts of LTHR in the palm biodiesel causes less sensitivity to EGR, less instability, and produces better torque and emission characteristics. Density and viscosity only change the shape of the LTHR duration, while cetane number or ignition quality affects the length of the LTHR duration. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/155575
Diesel Combustion and Emissions
Author: Society of Automotive EngineersPublisher:
ISBN:
Category : Air
Languages : en
Pages : 154
Book Description
Investigation of Mixing and Temperature Effects on UHC/CO Emission for Highly Dilute Low Temperature Combustion in a Light-duty Diesel Engine
Author: Richard Michael OpatPublisher:
ISBN:
Category :
Languages : en
Pages : 440
Book Description
Optical Diagnostics of a Late Injection Low-Temperature Combustion in a Heavy Duty Diesel Engine
Author: Fundamentals of Medium/Heavy Duty Diesel Engines
Author: Gus WrightPublisher: Jones & Bartlett Publishers
ISBN: 128406705X
Category : Transportation
Languages : en
Pages : 1407
Book Description
"Jones & Bartlett Learning CDX Automotive"--Cover
Gasoline Compression Ignition Technology
Author: Gautam KalghatgiPublisher: Springer Nature
ISBN: 9811687358
Category : Technology & Engineering
Languages : en
Pages : 339
Book Description
This book focuses on gasoline compression ignition (GCI) which offers the prospect of engines with high efficiency and low exhaust emissions at a lower cost. A GCI engine is a compression ignition (CI) engine which is run on gasoline-like fuels (even on low-octane gasoline), making it significantly easier to control particulates and NOx but with high efficiency. The state of the art development to make GCI combustion feasible on practical vehicles is highlighted, e.g., on overcoming problems on cold start, high-pressure rise rates at high loads, transients, and HC and CO emissions. This book will be a useful guide to those in academia and industry.
Transient Effects of Load and Speed on Low Temperature Diesel Combustion
Author: Daniel Ryan WilliamsPublisher:
ISBN:
Category :
Languages : en
Pages : 212
Book Description
Advanced Combustion for Sustainable Transport
Author: Avinash Kumar AgarwalPublisher: Springer Nature
ISBN: 9811684189
Category : Technology & Engineering
Languages : en
Pages : 367
Book Description
This book is based on advanced combustion technologies currently employed in internal combustion engines. It discusses different strategies for improving conventional diesel combustion. The volume includes chapters on low-temperature combustion techniques of compression-ignition engines which results in significant reduction of NOx and soot emissions. The content also highlights newly evolved gasoline compression technology and optical techniques in advanced gasoline direct injection engines. the research and its outcomes presented here highlight advancements in combustion technologies, analysing various issues related to in-cylinder combustion, pollutant formation and alternative fuels. This book will be of interest to those in academia and industry involved in fuels, IC engines, engine combustion research.