Download or read book SAE 2007 08 0078 Analysis on the Thermal Stress of Exhaust Manifold in a Heavy Duty Diesel Engine by Conjugate Heat Transfer Method written by Sang-Kyoo Lee and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The exhaust manifold in a heavy-duty diesel engine should be strictly designed on the thermal performance. The current study is to get the temperature distribution and heat transfer coefficients at the walls of the exhaust manifold using a conjugate heat transfer method with the consideration of exhaust gas flow and convective heat transfer. Thermal deformation of the exhaust manifold owing to the thermal stresses is investigated by coupling the temperature distribution into a structural analysis code.

Download or read book SAE 2003 04 0042 Temperature and heat transfer measurements in the exhaust system of a diesel powered light duty vehicle written by P. A. Battiston and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental heat transfer study was performed on the exhaust system of a diesel-powered, light-duty vehicle. A methodology was developed to compute the steady-state heat-loss rate of a component based on the first law of thermodynamics for flowing multi-component reactive mixtures and on gas temperature and exhaust gas concentration measurements across the component. Most of the energy loss of the exhaust occurred in the turbocharger, as expected, followed by losses in the takedown section, the tailpipe, the closed-couple catalyst, and the underbody Lean-NOx-Trap (LNT), which had the energy loss. The heat transfer for the takedown-pipe and tailpipe were very well correlated with standard equations of the form Nusselt NO. a(Reynolds No.)b. The augmentation in heat loss rates at the takedown-pipe and tailpipe over that of a steady-state, fully developed, turbulent, pipe-flow was relatively modest in contrast to the findings of an earlier study. All the catalytic exothermic energy release came from the closed-coupled catalyst while the underfloor LNT relied solely on convective heating. The fuel step transient tests at constant speed indicated the importance of thermal storage of the metal walls during cold start.

Download or read book Thermal Studies of Diesel Engine Exhaust Systems written by David J. Kapparos and published by . This book was released on 2004 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat and Mass Transfer in Gasoline and Diesel Engines written by Dudley Brian Spalding and published by Core/Mechanical. This book was released on 1989 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: The editors explain that the classical formulae and techniques for predicting heat flow do not apply to the unique conditions found in reciprocating engines. They warn the reader--presumed to be aspiring designers of more efficient and less polluting engines--that although these papers, from every country where engineering is practiced, contain nearly all the available knowledge on the subject, no definitive answers emerge, no breakthroughs loom around the next equation. The topics include the transfer of engine heat and of external heat, numerical flow simulation, applications and devices, ignition and quenching, and measurement techniques. Annotation copyrighted by Book News, Inc., Portland, OR

Download or read book Diesel Engine Thermal Loading written by and published by . This book was released on 1979 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Generalized Convective Heat Transfer Analysis of an Automotive Engine Exhaust Manifold shroud System Under Transient Start up Conditions written by Christopher Warren and published by . This book was released on 1978 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermal Stresses in an Exhaust Manifold written by C.D. White and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High output Diesel Engine Heat Transfer written by Eric Michael Gingrich and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-output diesel engine heat transfer was investigated using a single-cylinder research engine. Engine operating conditions near 30 bar IMEPg and 250 bar in-cylinder pressure were tested. This study had three primary goals. The first was to compare local piston heat transfer, based on fast-response piston surface temperature data, to global engine heat transfer based on thermodynamic data. A wireless telemetry system was used to acquire fast-response piston surface temperature data, from which heat flux was calculated. The local measurements were then spatially averaged to find total heat transfer, which agreed relatively well with the global measurements. In the second part of this research, thermal barrier coatings of various thickness and surface roughness were applied to the piston crown. Three coated pistons were tested. Coatings with higher roughness did not show any statistically significant improvement to engine performance when compared to the metal baseline piston, and produced higher filter smoke numbers. The lower roughness coated piston showed an increase of gross indicated thermal efficiency of up to 3.5 % (relative) compared to the metal baseline piston for some operating conditions. The increase in efficiency was found to correlate with additional late-cycle apparent heat release rate and a reduction in in-cylinder heat transfer. In the third part of this research, a new instantaneous spatially averaged heat transfer correlation was developed using the local heat flux data. Previous correlations are based on the correlation of Nusselt and Reynolds numbers. The new correlation included an additional term, dimensionless chemical energy release rate. The new term was derived from dimensional analysis, which should enable similitude for diesel engines. A new interpretation of the characteristic velocity, as found in the Reynolds number, was developed and included the integrated fuel mass injection rate. The existing and new correlations were calibrated to the experimental data by minimizing the least squares error. On average, the new formulation was found to match the experimental data better than the existing models.

Download or read book On the Development of Methods for Estimating Thermal Loading in High speed Diesel Engines written by Ari Juva and published by . This book was released on 1985 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sustainable Agriculture Reviews 27 written by Eric Lichtfouse and published by Springer. This book was released on 2018-05-08 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with a rapidly growing field aiming at producing food and energy in a sustainable way for humans and their children. It is a discipline that addresses current issues: climate change, increasing food and fuel prices, poor-nation starvation, rich-nation obesity, water pollution, soil erosion, fertility loss, pest control and biodiversity depletion. This series gathers review articles that analyze current agricultural issues and knowledge, then proposes alternative solutions.

Download or read book J S Mill On Liberty in Focus written by John Gray and published by Other. This book was released on 1991 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers together for the first time J.S. Mill's On Liberty and a selection of important essays by the eminent scholars Isaiah Berlin, Alan Ryan, John Rees C.L. Ten and Richard Wollheim on Mill's seminal work.

Download or read book Diesel Combustion and Emissions written by Society of Automotive Engineers and published by . This book was released on 1981 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Political Economy of Media and Power written by Jeffery Klaehn and published by Peter Lang. This book was released on 2010 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Political Economy of Media and Power is a highly interdisciplinary and innovative edited collection, bringing together a diverse range of chapters that address some of the most important issues of our times. Contributors cut through media spectacle and make visible the intersections between mass media and the politics of power in the contemporary social world. The book is intended to foster critical pedagogy; chapters explore ways in which media connect with a broad range of topics and issues, including globalization; war and terrorism; foreign affairs; democracy; governmental relations; the cultural politics of militarization; gender inequality and the sexist saturation of the public sphere; media representations of women; media spin and public relations within the broader context of corporate and ideological power. The volume features notable contributors, including a preface by Cees Hamelink, an introduction by David Miller and William Dinan, and chapters from Justin Lewis, Robin Andersen, Henry Giroux, James Winter, Robert Jensen, Stuart Allan, Richard Keeble, Yasmin Jiwani, David Berry, Gerald Sussman, and Andrew Mullen.

Download or read book Combustion and Flow Diagnostics written by and published by . This book was released on 2004 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mapping and the Citizen Sensor written by Giles Foody and published by Ubiquity Press. This book was released on 2017-09-11 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maps are a fundamental resource in a diverse array of applications ranging from everyday activities, such as route planning through the legal demarcation of space to scientific studies, such as those seeking to understand biodiversity and inform the design of nature reserves for species conservation. For a map to have value, it should provide an accurate and timely representation of the phenomenon depicted and this can be a challenge in a dynamic world. Fortunately, mapping activities have benefitted greatly from recent advances in geoinformation technologies. Satellite remote sensing, for example, now offers unparalleled data acquisition and authoritative mapping agencies have developed systems for the routine production of maps in accordance with strict standards. Until recently, much mapping activity was in the exclusive realm of authoritative agencies but technological development has also allowed the rise of the amateur mapping community. The proliferation of inexpensive and highly mobile and location aware devices together with Web 2.0 technology have fostered the emergence of the citizen as a source of data. Mapping presently benefits from vast amounts of spatial data as well as people able to provide observations of geographic phenomena, which can inform map production, revision and evaluation. The great potential of these developments is, however, often limited by concerns. The latter span issues from the nature of the citizens through the way data are collected and shared to the quality and trustworthiness of the data. This book reports on some of the key issues connected with the use of citizen sensors in mapping. It arises from a European Co-operation in Science and Technology (COST) Action, which explored issues linked to topics ranging from citizen motivation, data acquisition, data quality and the use of citizen derived data in the production of maps that rival, and sometimes surpass, maps arising from authoritative agencies.

Download or read book Critical Pedagogies in Physical Education Physical Activity and Health written by Julie Stirrup and published by Routledge. This book was released on 2021-07-29 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: • Introduces pedagogy for teaching health in the context of physical education and exercise • Health, PE and physical activity are commonly taught alongside each other at degree level • Examines principles, policy and best practice • Includes authors and cases from around the world • Each chapter includes features to encourage the reader to reflect on their own practice

Download or read book Psychiatric and Mental Health Nursing written by Mary Chambers and published by CRC Press. This book was released on 2017-04-07 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of a bestselling, evidence-based textbook provides a comprehensive overview of psychiatric and mental health nursing. Keeping service users and their recovery at the centre of care, the holistic approach will help nurses to gain the tools and understanding required to work in this complex area. Extensively updated for this new edition, the text looks at: Aspects of mental health nursing: covering topics such as ethics, developing therapeutic relationships and supervision. The foundations of mental health nursing: discussing diagnosis, assessment and risk. Caring for those experiencing mental health distress: looking at wide range of troubles including anxiety, bipolar disorder, eating disorders and issues around sexuality and gender. Care planning and approaches to therapeutic practice: exploring ideas, pathways and treatments such as recovery, CBT, psychodynamic therapies and psychopharmacology. Services and support for those with mental health distress: covering topics such as collaborative work, involvement of service users and their families and carers, and a range of different mental healthcare settings. Mental health nursing in the twenty-first century: highlighting emerging and future trends including the political landscape, physical health and health promotion, and technological advances. This accessible and comprehensive textbook integrates service user perspectives throughout and includes student-friendly features such as learning outcomes, key points summaries, reflection points and further reading sections. It is an essential resource for all mental health nursing students, as well as an invaluable reference for practising nurses.