Download or read book Investigation of Particle and Gaseous Emissions from Conventional and Emerging Vehicle Technologies Operating on Bio fuels written by Daniel Zachary Short and published by . This book was released on 2014 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Light-duty vehicles emit gaseous and particle emissions that have the ability to effect climate, human health, and air quality. Vehicle technologies are changing rapidly due to the need to increase fuel efficiency. The use of biofuels (i.e., ethanol and iso-butanol) may increase due to the desire to reduce the use of fossil fuels. The changes in fuels and vehicle technologies may change the resulting emissions and need to be assessed. For instance, the water-soluble and water-insoluble particle composition could have detrimental health effects. This dissertation investigates the emissions of PM and gaseous emissions from current and emerging vehicle technologies.
Download or read book Particulate Emissions from Vehicles written by Peter Eastwood and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: The public health risks posed by automotive particulate emissions are well known. Such particles are sufficiently small to reach the deepest regions of the lungs; and moreover act as carriers for many potentially toxic substances. Historically, diesel engines have been singled out in this regard, but recent research shows the need to consider particulate emissions from gasoline engines as well. Already implicated in more than one respiratory disease, the strongest evidence in recent times points to particle-mediated cardiovascular disorders (strokes and heart attacks). Accordingly, legislation limiting particulate emissions is becoming increasingly stringent, placing great pressure on the automotive industry to produce cleaner vehicles - pressure only heightened by the ever-increasing number of cars on our roads. Particulate Emissions from Vehicles addresses a field of increased international interest and research activity; discusses the impact of new legislation globally on the automotive industry; and explains new ways of measuring particle size, number and composition that are currently under development. The expert analysis and summary of the state-of-the-art, which encompasses the key areas of combustion performance, measurement techniques and toxicology, will appeal to R&D practitioners and engineers working in the automotive industry and related mechanical fields, as well as postgraduate students and researchers of engine technology, air pollution and life/ environmental science. The public health aspects will also appeal to the biomedical research community.
Download or read book Modeling Size resolved Particle Number Emissions from Advanced Technology and Alternative Fueled Vehicles in Real operating Conditions written by Darrell Bruce Sonntag and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two particle number emission datasets were analyzed in detail. The first data set contained particle number emissions from four transit buses, including two hybrid diesel-electric buses, under a variety of driving conditions and technological/fuel treatments including: diesel oxidation catalysts, diesel particle filters and ultra-low sulfur diesel fuel. A linear mixed model was used to control for multiple sources of variability in real-world particle measurements, and identified significant factors influencing particle number emissions. Subsequently, link-level particle number emission models were developed for the DOC-equipped conventional buses, using different sets of available predictive data. Principle component analysis was used to reduce the variability of engine parameters to three interpretable parameters: percent engine load, engine speed and exhaust temperature. Time-resolved particle emissions from the diesel transit buses were evaluated in detail to understand the relationship of particle emissions, operating modes, and the relationship among multiple pollutants. Particle number and mass emissions are generally well-correlated during real-world behavior, however number are emissions are more influenced by the storage and subsequent release of particles evident during high engine speeds, while particle mass emission are more consistent with fuel events. Acceleration events on a stop-and-go urban route caused the maximum particle emission rates at resolved spatial scales, while over large spatial scales the highest emission rates occurred on the freeway. The concept of emission modes was introduced to understand the variability of gaseous and particle pollution during transient operation of the transit bus. Six repeatable emission modes were identified as being capable of explaining more than 75% of the total variability in emissions. Functional data analysis was introduced to analyze particle size distributions collected on a flex-fuel vehicle. A non-parametric smoothing technique can optimally smooth particle size distribution data without imposing prior distributional assumptions. The relationship among particle concentrations, operation conditions, and fuel type was estimated as a function of particle size using a functional linear model. Future paths of research are identified which take into account the smoothness of particle-size distributions. In summary, this dissertation contributes data, understanding, and quantitative concepts and methods to advance both research and practice-oriented particle emission models.
Download or read book Nanoparticle Emissions From Combustion Engines written by Jerzy Merkisz and published by Springer. This book was released on 2015-03-19 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on particulate matter emissions produced by vehicles with combustion engines. It describes the physicochemical properties of the particulate matter, the mechanisms of its formation and its environmental impacts (including those on human beings). It discusses methods for measuring particulate mass and number, including the state-of-the-art in Portable Emission Measurement System (PEMS) equipment for measuring the exhaust emissions of both light and heavy-duty vehicles and buses under actual operating conditions. The book presents the authors’ latest investigations into the relations between particulate emission (mass and number) and engine operating parameters, as well as their new findings obtained through road tests performed on various types of vehicles, including those using diesel particulate filter regeneration. The book, which addresses the needs of academics and professionals alike, also discusses relevant European regulations on particulate emissions and highlights selected methods aimed at the reduction of particulate emissions from automobiles.
Download or read book Production of Biofuels and Numerical Modeling of Chemical Combustion Systems written by Miguel Torres García and published by MDPI. This book was released on 2021-08-18 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biofuels have recently attracted a lot of attention, mainly as alternative fuels for applications in energy generation and transportation. The utilization of biofuels in such controlled combustion processes has the great advantage of not depleting the limited resources of fossil fuels while leading to emissions of greenhouse gases and smoke particles similar to those of fossil fuels. On the other hand, a vast amount of biofuels are subjected to combustion in small-scale processes, such as for heating and cooking in residential dwellings, as well as in agricultural operations, such as crop residue removal and land clearing. In addition, large amounts of biomass are consumed annually during forest and savanna fires in many parts of the world. These types of burning processes are typically uncontrolled and unregulated. Consequently, the emissions from these processes may be larger compared to industrial-type operations. Aside from direct effects on human health, especially due to a sizeable fraction of the smoke emissions remaining inside residential homes, the smoke particles and gases released from uncontrolled biofuel combustion impose significant effects on the regional and global climate. Estimates have shown the majority of carbonaceous airborne particulate matter to be derived from the combustion of biofuels and biomass. “Production of Biofuels and Numerical Modelling of Chemical Combustion Systems” comprehensively overviews and includes in-depth technical research papers addressing recent progress in biofuel production and combustion processes. To be specific, this book contains sixteen high-quality studies (fifteen research papers and one review paper) addressing techniques and methods for bioenergy and biofuel production as well as challenges in the broad area of process modelling and control in combustion processes.
Download or read book 26th International Symposium on Automotive Technology and Automation Aachen Germany 13th 17th September 1993 written by and published by . This book was released on 1993 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Biofuels Production written by Rafael Luque and published by Woodhead Publishing. This book was released on 2016-05-19 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Biofuels Production, Second Edition, discusses advanced chemical, biochemical, and thermochemical biofuels production routes that are fast being developed to address the global increase in energy usage. Research and development in this field is aimed at improving the quality and environmental impact of biofuels production, as well as the overall efficiency and output of biofuels production plants. The book provides a comprehensive and systematic reference on the range of biomass conversion processes and technology. Key changes for this second edition include increased coverage of emerging feedstocks, including microalgae, more emphasis on by-product valorization for biofuels’ production, additional chapters on emerging biofuel production methods, and discussion of the emissions associated with biofuel use in engines. The editorial team is strengthened by the addition of two extra members, and a number of new contributors have been invited to work with authors from the first edition to revise existing chapters, thus offering fresh perspectives. Provides systematic and detailed coverage of the processes and technologies being used for biofuel production Discusses advanced chemical, biochemical, and thermochemical biofuels production routes that are fast being developed to address the global increase in energy usage Reviews the production of both first and second generation biofuels Addresses integrated biofuel production in biorefineries and the use of waste materials as feedstocks
Download or read book Life Cycle Assessment of Biorefineries written by Edgard Gnansounou and published by Elsevier. This book was released on 2016-12-20 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Life-Cycle Assessment of Biorefineries, the sixth and last book in the series on biomass-biorefineries discusses the unprecedented growth and development in the emerging concept of a global bio-based economy in which biomass-based biorefineries have attained center stage for the production of fuels and chemicals. It is envisaged that by 2020 a majority of chemicals currently being produced through a chemical route will be produced via a bio-based route. Agro-industrial residues, municipal solid wastes, and forestry wastes have been considered as the most significant feedstocks for such bio-refineries. However, for the techno-economic success of such biorefineries, it is of prime and utmost importance to understand their lifecycle assessment for various aspects. Provides state-of-art information on the basics and fundamental principles of LCA for biorefineries Contains key features for the education and understanding of integrated biorefineries Presents models that are used to cope with land-use changes and their effects on biorefineries Includes relevant case studies that illustrate main points
Download or read book Plant Oils as Fuels written by Norbert Martini and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among renewable energy resources, Biodiesel fuel made from rapeseed is of special importance in Europe. Economical, technological, ecological and toxicological arguments have been advanced implying that, at present, Biodiesel is at best just a "niche" product that can only compete with traditional fossil diesel fuel because of significant tax incentives. Given the present state of knowledge in these very different areas, the decisive question to be asked is whether the competitiveness, and thus marketability, of Biodiesel can be enhanced by biotechnological manipulations of the rape plant.
Download or read book The Effects of Oxygenated Fuels on DISI Engine Particle Emissions and Efficiency written by Tara Larsson and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transitions to Alternative Transportation Technologies written by National Research Council and published by National Academies Press. This book was released on 2008-12-17 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen fuel cell vehicles (HFCVs) could alleviate the nation's dependence on oil and reduce U.S. emissions of carbon dioxide, the major greenhouse gas. Industry-and government-sponsored research programs have made very impressive technical progress over the past several years, and several companies are currently introducing pre-commercial vehicles and hydrogen fueling stations in limited markets. However, to achieve wide hydrogen vehicle penetration, further technological advances are required for commercial viability, and vehicle manufacturer and hydrogen supplier activities must be coordinated. In particular, costs must be reduced, new automotive manufacturing technologies commercialized, and adequate supplies of hydrogen produced and made available to motorists. These efforts will require considerable resources, especially federal and private sector funding. This book estimates the resources that will be needed to bring HFCVs to the point of competitive self-sustainability in the marketplace. It also estimates the impact on oil consumption and carbon dioxide emissions as HFCVs become a large fraction of the light-duty vehicle fleet.
Download or read book Proceedings written by and published by . This book was released on 1993 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book MILD Combustion Modelling Challenges Experimental Configurations and Diagnostic Tools written by Alessandro Parente and published by Frontiers Media SA. This book was released on 2021-11-26 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biofuel Technologies written by Vijai Kumar Gupta and published by Springer Science & Business Media. This book was released on 2013-01-26 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biofuels are considered to be the main potential replacement for fossil fuels in the near future. In this book international experts present recent advances in biofuel research and related technologies. Topics include biomethane and biobutanol production, microbial fuel cells, feedstock production, biomass pre-treatment, enzyme hydrolysis, genetic manipulation of microbial cells and their application in the biofuels industry, bioreactor systems, and economical processing technologies for biofuel residues. The chapters provide concise information to help understand the technology-related implications of biofuels development. Moreover, recent updates on biofuel feedstocks, biofuel types, associated co- and byproducts and their applications are highlighted. The book addresses the needs of postgraduate researchers and scientists across diverse disciplines and industrial sectors in which biofuel technologies and related research and experimentation are pursued.
Download or read book Motor Vehicle Emissions written by United States. National Highway Traffic Safety Administration. Technical Reference Division and published by . This book was released on 1972 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Controlling Automobile Air Pollution written by Winston Harrington and published by Ashgate Publishing. This book was released on 2007 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume includes many of the most influential and interesting academic articles related to the economics of mobile source pollution control. The papers included explore why vehicles and vehicle markets are unique, provide estimates of the type and magnitude of the social costs of driving and examine estimation methods and estimates of the various elasticities of vehicle demand. Analysis of the social costs and policies to reduce both traditional air pollutants and greenhouse gas emissions are included. Selected articles review the range of evaluation of both regulatory and market-based approaches to controlling emissions. The complexity of the effects of different policies are emphasized and the unintended consequences of regulation are explored in the context of vehicle emissions reduction policies.
Download or read book An Investigation of Gaseous and Particulate Emissions from Compression Ignition Engines Operated with Alternative Fuels Injection Technologies and Combustion Strategies written by Nicholas Charles Surawski and published by . This book was released on 2011 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt:
