Download or read book Diesel PM Model to Measurement Comparison written by United States. Environmental Protection Agency. Office of Transportation and Air Quality. Assessment and Standards Division and published by . This book was released on 2002 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this project was to compare estimated diesel particulate matter (diesel PM or DPM) concentrations based on elemental carbon (EC) and black carbon (BC) data with modeled ambient concentrations of DPM from the 1996 National-Scale Air Toxics Assessment (NSATA). The NSATA used DPM inventory estimates from EPA's final rule promulgating 2007 heavy duty engine standards. Using the ASPEN dispersion model, NSATA developed estimates of 1996 annual average concentrations of DPM at census tracts nationwide. The goal of this project was to evaluate the reasonableness of DPM estimates from dispersion models for this case by comparing the NSATA DPM concentration estimates with estimates based on measured EC and BC concentrations. EC measurements can be obtained from PM2.5 monitoring sites that sample PM2.5 using quartz fiber media. The EC is measured using thermo-optical analysis of the carbonaceous material. Many studies have used thermal optimal transmission (TOT), the NIOSH method developed at Sunset lablaboratories. Some studies have used thermal optical reflectance (TOR), a method developed by Desert Research Institute. In addition, some sites measure ambient BC with an Aethalometer. EPA's Office of Air Quality Planning and Standards is reviewing the measurement of EC through the Speciation Trends Network, and an Agency statement on the issue is forthcoming. For now, however, existing values developed using the TOT method are being used. All these carbon concentration measurements can be used to estimate ambient DPM by using conversion factors based on 1) source apportionment studies, 2) source-receptor model studies, and 3) studies which examine the fraction of EC in DPM.
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 Diesel Particulate Emissions Landmark Research 1994 2001 written by John H Johnson and published by SAE International. This book was released on 2002-02-20 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need for manufacturers to meet U.S. Environmental Protection Agency (EPA) mobile source diesel emissions standards for on-highway light duty and heavy duty vehicles has been the driving force for the control of diesel particulate and NOx emissions reductions. Diesel Particulate Emissions: Landmark Research 1994-2001 contains the latest research and development findings that will help guide engineers to achieve low particulate emissions from future engines. Based on extensive SAE literature from the past seven years, the 45 papers in this book have been selected from the SAE Transactions Journals.
Download or read book Introduction to Diesel Emissions written by Richard Viskup and published by BoD – Books on Demand. This book was released on 2020-03-18 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first invention and development of the functional diesel engine was in 1897 by Rudolf Christian Karl Diesel, German inventor. Until now, this invention has been superseded by the development of very productive engines and mechanics. Current diesel engines are well known to many people around the world and serve in innumerable applications for various types of public transport, light and heavy duty transportation, for automotive, railway, maritime or aviation transportation, in different harsh environments, in construction, in mining, and for diverse industries. The light duty or heavy-duty diesel engines have some drawbacks. One of the main concerns is connected with exhaust emissions generated by diesel engines. This book discusses the generation of diesel exhaust emissions and mitigations, performance, emissions and combustion evaluations, utilisation of alternative biodiesel fuels, comparison of different techniques for measurement of soot and diesel particulate matter, analyses of diesel particulate matter flow pattern, and chemical composition of diesel particulate matter. The main concern of this book is to expand knowledge of readers and bring together the latest research findings related to diesel engine exhaust emissions.
Download or read book Review of Automotive Engineering Vol 29 No 4 written by and published by 社団法人自動車技術会(JSAE). This book was released on with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modelling Diesel Combustion written by P. A. Lakshminarayanan and published by Springer Science & Business Media. This book was released on 2010-03-03 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phenomenology of Diesel Combustion and Modeling Diesel is the most efficient combustion engine today and it plays an important role in transport of goods and passengers on land and on high seas. The emissions must be controlled as stipulated by the society without sacrificing the legendary fuel economy of the diesel engines. These important drivers caused innovations in diesel engineering like re-entrant combustion chambers in the piston, lower swirl support and high pressure injection, in turn reducing the ignition delay and hence the nitric oxides. The limits on emissions are being continually reduced. The- fore, the required accuracy of the models to predict the emissions and efficiency of the engines is high. The phenomenological combustion models based on physical and chemical description of the processes in the engine are practical to describe diesel engine combustion and to carry out parametric studies. This is because the injection process, which can be relatively well predicted, has the dominant effect on mixture formation and subsequent course of combustion. The need for improving these models by incorporating new developments in engine designs is explained in Chapter 2. With “model based control programs” used in the Electronic Control Units of the engines, phenomenological models are assuming more importance now because the detailed CFD based models are too slow to be handled by the Electronic Control Units. Experimental work is necessary to develop the basic understanding of the pr- esses.
Download or read book Comparison of Different Techniques for Measurement of Soot and Particulate Matter Emissions from Diesel Engine written by Richard Viskup and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research presented here is the comparison studies between different commercially available techniques for measurement of soot and particulate matter (PM) emissions from passenger car diesel engine. The compared devices are filter paper-type smoke meter, photoacoustic spectrometer, opacimeter, differential mobility spectrometer and laser-induced incandescence. The focus is to study static and dynamic transient exhaust emissions from the location position closer to the actual combustion event,Äîdownstream of the turbine, position characterised by the higher temperature and higher pressure of the emission gas,Äîthan the standard measurement position, in the tailpipe of the exhaust manifold. The main task is to compare an accuracy and sensitivity of individual devices at static and dynamic soot and PM emissions.
Download or read book Diesel Emissions and Their Control written by Magdi K Khair and published by SAE International. This book was released on 2006-12-01 with total page 583 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will assist readers in meeting today's tough challenges of improving diesel engine emissions, diesel efficiency, and public perception of the diesel engine. It can be used as an introductory text, while at the same time providing practical information that will be useful for experienced readers. This comprehensive book is well illustrated with more than 560 figures and 80 tables. Each main section is broken down into chapters that offer more specific and extensive information on current issues, as well as answers to technical questions.
Download or read book Measurement of Diesel Solid Nanoparticle Emissions Using a Catalytic Stripper for Comparison to Europe s PMP Protocol written by Heejung Jung and published by . This book was released on 2012 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Emissions Measurement Testing 2004 written by and published by SAE International. This book was released on 2004 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerosol Measurement written by Pramod Kulkarni and published by John Wiley & Sons. This book was released on 2011-09-09 with total page 1497 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerosol Measurement: Principles, Techniques, and Applications Third Edition is the most detailed treatment available of the latest aerosol measurement methods. Drawing on the know-how of numerous expert contributors; it provides a solid grasp of measurement fundamentals and practices a wide variety of aerosol applications. This new edition is updated to address new and developing applications of aerosol measurement, including applications in environmental health, atmospheric science, climate change, air pollution, public health, nanotechnology, particle and powder technology, pharmaceutical research and development, clean room technology (integrated circuit manufacture), and nuclear waste management.
Download or read book review of automotive engineering written by and published by 社団法人自動車技術会(JSAE). This book was released on with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engine Modeling and Simulation written by Avinash Kumar Agarwal and published by Springer Nature. This book was released on 2021-12-16 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the simulation and modeling of internal combustion engines. The contents include various aspects of diesel and gasoline engine modeling and simulation such as spray, combustion, ignition, in-cylinder phenomena, emissions, exhaust heat recovery. It also explored engine models and analysis of cylinder bore piston stresses and temperature effects. This book includes recent literature and focuses on current modeling and simulation trends for internal combustion engines. Readers will gain knowledge about engine process simulation and modeling, helpful for the development of efficient and emission-free engines. A few chapters highlight the review of state-of-the-art models for spray, combustion, and emissions, focusing on the theory, models, and their applications from an engine point of view. This volume would be of interest to professionals, post-graduate students involved in alternative fuels, IC engines, engine modeling and simulation, and environmental research.
Download or read book Urban Air Quality Measurement Modelling and Management written by Ranjeet S. Sokhi and published by Springer Science & Business Media. This book was released on 2011-06-28 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the first international conference on urban air quality, held at the University ofHertfordshire in 1996, significant advances have taken place in the field of urban air pollution. In addition to the scientific advances in the measurement, modelling and management of urban air quality, significant progress has been achieved in relation to the establishment of major frameworks to ensure a more effective mechanism for international collaboration. Two such frameworks are SATURN (Studying Atmospheric Pollution in Urban Areas) and TRAPOS (Optimisation of Modelling Methods for Traffic Pollution in Streets). In response to such advances, the second international conference was held at the Technical University of Madrid in March 1999 with active participation of SATURN and TRAPOS investigators. The organisation of the conference was headed by the Institute of Physics in collaboration with the Technical University of Madrid and the University of Hertfordshire. The support of IUAPPA and AWMA ensured a truly worldwide promotion and participation. The meeting attracted 140 scientists from 26 different countries establishing it as a major forum for exchanging and discussing the latest research fmdings in this field.
Download or read book Information Circular written by and published by . This book was released on 1987 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Register written by and published by . This book was released on 1993-03-19 with total page 1018 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Landscape Fire Smoke and Health written by Tatiana V. Loboda and published by John Wiley & Sons. This book was released on 2023-10-11 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: Landscape Fire, Smoke, and Health Linking Biomass Burning Emissions to Human Well-Being Where and when wildfires occur, what pollutants they emit, how the chemistry of smoke changes in the atmosphere, and what impact this air pollution has on human health and well-being are questions explored across different scientific disciplines. Landscape Fire, Smoke, and Health: Linking Biomass Burning Emissions to Human Well-Being is designed to create a foundational knowledge base allowing interdisciplinary teams to interact more effectively in addressing the impacts of air pollution from biomass burning on human health. Volume highlights include: Core concepts, principles, and terminology related to smoke and air quality used in different disciplines Observational and modeling tools and approaches in fire science Methods to sense, model, and map smoke in the atmosphere Impacts of biomass burning smoke on the health and well-being of children and adults Perspectives from researchers, modelers, and practitioners Case studies from different countries Information to support decision-making and policy The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals.
