Download or read book The Most Efficient Engine written by John D. Jacoby and published by CreateSpace. This book was released on 2014-07-23 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1824, Sadi Carnot postulated a monumental theory, which ranks with the greatest of scientific classics. He became immortal when he published his technical paper ”Reflections on the Motive Power of Heat”, which included his famous “Carnot cycle” theory. His theory is included in almost every thermodynamics, engineering, and physics course in colleges worldwide. It defines the maximum thermal efficiency of all heat engines operating within the same temperature range. Now, "The Most Efficient Engine" cycle, using a different approach, defines the maximum thermal efficiency as does the Carnot cycle. In addition, it relates temperature, efficiency, and power in a meaningful way, giving better insight to heat engine operation. This book includes the Carnot cycle, the Stirling cycle, and the "Most Efficient Engine" cycle, along with some relevant thermodynamics. As an interesting, surprising, and amazing sidelight, the "Most Efficient Engine" cycle equation, for efficiency at maximum power, is validated by and validates the widely quoted Chambadal - Novikov - Curzon - Ahlborn equation , giving the exact same results. e = 1-SQR (TL/TH) The book will appeal to a broad spectrum of readers. It promises to be another classic
Download or read book Commercial Aircraft Propulsion and Energy Systems Research written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-08-09 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary human activities that release carbon dioxide (CO2) into the atmosphere are the combustion of fossil fuels (coal, natural gas, and oil) to generate electricity, the provision of energy for transportation, and as a consequence of some industrial processes. Although aviation CO2 emissions only make up approximately 2.0 to 2.5 percent of total global annual CO2 emissions, research to reduce CO2 emissions is urgent because (1) such reductions may be legislated even as commercial air travel grows, (2) because it takes new technology a long time to propagate into and through the aviation fleet, and (3) because of the ongoing impact of global CO2 emissions. Commercial Aircraft Propulsion and Energy Systems Research develops a national research agenda for reducing CO2 emissions from commercial aviation. This report focuses on propulsion and energy technologies for reducing carbon emissions from large, commercial aircraftâ€" single-aisle and twin-aisle aircraft that carry 100 or more passengersâ€"because such aircraft account for more than 90 percent of global emissions from commercial aircraft. Moreover, while smaller aircraft also emit CO2, they make only a minor contribution to global emissions, and many technologies that reduce CO2 emissions for large aircraft also apply to smaller aircraft. As commercial aviation continues to grow in terms of revenue-passenger miles and cargo ton miles, CO2 emissions are expected to increase. To reduce the contribution of aviation to climate change, it is essential to improve the effectiveness of ongoing efforts to reduce emissions and initiate research into new approaches.
Download or read book Assessment of Fuel Economy Technologies for Light Duty Vehicles written by National Research Council and published by National Academies Press. This book was released on 2011-06-03 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various combinations of commercially available technologies could greatly reduce fuel consumption in passenger cars, sport-utility vehicles, minivans, and other light-duty vehicles without compromising vehicle performance or safety. Assessment of Technologies for Improving Light Duty Vehicle Fuel Economy estimates the potential fuel savings and costs to consumers of available technology combinations for three types of engines: spark-ignition gasoline, compression-ignition diesel, and hybrid. According to its estimates, adopting the full combination of improved technologies in medium and large cars and pickup trucks with spark-ignition engines could reduce fuel consumption by 29 percent at an additional cost of $2,200 to the consumer. Replacing spark-ignition engines with diesel engines and components would yield fuel savings of about 37 percent at an added cost of approximately $5,900 per vehicle, and replacing spark-ignition engines with hybrid engines and components would reduce fuel consumption by 43 percent at an increase of $6,000 per vehicle. The book focuses on fuel consumption-the amount of fuel consumed in a given driving distance-because energy savings are directly related to the amount of fuel used. In contrast, fuel economy measures how far a vehicle will travel with a gallon of fuel. Because fuel consumption data indicate money saved on fuel purchases and reductions in carbon dioxide emissions, the book finds that vehicle stickers should provide consumers with fuel consumption data in addition to fuel economy information.
Download or read book Cost Effectiveness and Deployment of Fuel Economy Technologies for Light Duty Vehicles written by National Research Council and published by National Academies Press. This book was released on 2015-09-28 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt: The light-duty vehicle fleet is expected to undergo substantial technological changes over the next several decades. New powertrain designs, alternative fuels, advanced materials and significant changes to the vehicle body are being driven by increasingly stringent fuel economy and greenhouse gas emission standards. By the end of the next decade, cars and light-duty trucks will be more fuel efficient, weigh less, emit less air pollutants, have more safety features, and will be more expensive to purchase relative to current vehicles. Though the gasoline-powered spark ignition engine will continue to be the dominant powertrain configuration even through 2030, such vehicles will be equipped with advanced technologies, materials, electronics and controls, and aerodynamics. And by 2030, the deployment of alternative methods to propel and fuel vehicles and alternative modes of transportation, including autonomous vehicles, will be well underway. What are these new technologies - how will they work, and will some technologies be more effective than others? Written to inform The United States Department of Transportation's National Highway Traffic Safety Administration (NHTSA) and Environmental Protection Agency (EPA) Corporate Average Fuel Economy (CAFE) and greenhouse gas (GHG) emission standards, this new report from the National Research Council is a technical evaluation of costs, benefits, and implementation issues of fuel reduction technologies for next-generation light-duty vehicles. Cost, Effectiveness, and Deployment of Fuel Economy Technologies for Light-Duty Vehicles estimates the cost, potential efficiency improvements, and barriers to commercial deployment of technologies that might be employed from 2020 to 2030. This report describes these promising technologies and makes recommendations for their inclusion on the list of technologies applicable for the 2017-2025 CAFE standards.
Download or read book Piston Engine Based Power Plants written by Paul Breeze and published by Academic Press. This book was released on 2017-12-05 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: Piston Engine-Based Power Plants presents Breeze's most up-to-date discussion and clear and concise analysis of this resource, aimed at those working and researching in the area. Various engine types including Diesel and Stirling are discussed, with consideration of economic factors and important planning considerations, such as the size and speed of the plant. Breeze also evaluates the emissions which piston engines can create and considers ways of planning for and controlling those. Explores various types of engines used to power automotive power plants such as internal combustion, spark-ignition and dual-fuel Discusses the engine cycles, size and speed Evaluates emissions and considers the various economic factors involved
Download or read book Synthesis of Subsonic Airplane Design written by E. Torenbeek and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the education of aeronautical engineers at Delft University of Technology started in 1940 under tae inspiring leadership of Professor H.J. van der Maas, much emphasis has been placed on the design of aircraft as part of the student's curriculum. Not only is aircraft design an optional subject for thesis work, but every aeronautical student has to carry out a preliminary airplane design in the course of his study. The main purpose of this preliminary design work is to enable the student to synthesize the knowledge ob tained separately in courses on aerodynamics, aircraft performances, stability and con trol, aircraft structures, etc. The student's exercises in preliminary design have been directed through the years by a number of staff members of the Department of Aerospace Engineering in Delft. The author of this book, Mr. E. Torenbeek, has made a large contribution to this part of the study programme for many years. Not only has he acquired vast experience in teaching airplane design at university level, but he has also been deeply involved in design-oriented re search, e.g. developing rational design methods and systematizing design information. I am very pleased that this wealth of experience, methods and data is now presented in this book.
Download or read book A Practical Guide to Reciprocating Internal Combustion Engine Efficiency and Emissions written by Paul W. Guthrie and published by . This book was released on 2018-08-23 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to improve real engine efficiency, that is the conversion of fuel chemical energy to useful work, it is necessary to determine exactly where real engine cycles differ from theoretical thermodynamic cycles. While such theoretical cycles present a useful basis for analysis they can by no means fully describe the working processes of real engines. This report aimed to clearly explain the processes of real engines from the fundamental first and second laws of thermodynamics with reference to practical considerations.In the literature there are many fragments of the whole story, but not one document that summarises all of the issues relevant to the optimum design of real internal combustion engines for best efficiency and simultaneous best emissions. In this report the key parameters which influence efficiency and emissions formation were defined and recommendations were made for the configuration of an optimal engine system based on fundamental principles. A consequence of the work was the identification of the need to re-think the combustion mode paradigms so closely associated with contemporary internal combustion engines.
Download or read book Characteristics and Control of Low Temperature Combustion Engines written by Rakesh Kumar Maurya and published by Springer. This book was released on 2017-11-03 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with novel advanced engine combustion technologies having potential of high fuel conversion efficiency along with ultralow NOx and particulate matter (PM) emissions. It offers insight into advanced combustion modes for efficient utilization of gasoline like fuels. Fundamentals of various advanced low temperature combustion (LTC) systems such as HCCI, PCCI, PPC and RCCI engines and their fuel quality requirements are also discussed. Detailed performance, combustion and emissions characteristics of futuristic engine technologies such as PPC and RCCI employing conventional as well as alternative fuels are analyzed and discussed. Special emphasis is placed on soot particle number emission characterization, high load limiting constraints, and fuel effects on combustion characteristics in LTC engines. For closed loop combustion control of LTC engines, sensors, actuators and control strategies are also discussed. The book should prove useful to a broad audience, including graduate students, researchers, and professionals Offers novel technologies for improved and efficient utilization of gasoline like fuels; Deals with most advanced and futuristic engine combustion modes such as PPC and RCCI; Comprehensible presentation of the performance, combustion and emissions characteristics of low temperature combustion (LTC) engines; Deals with closed loop combustion control of advanced LTC engines; State-of-the-art technology book that concisely summarizes the recent advancements in LTC technology. .
Download or read book Energy Entropy and Engines written by Sanjeev Chandra and published by John Wiley & Sons. This book was released on 2016-05-16 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: Textbook concisely introduces engineering thermodynamics, covering concepts including energy, entropy, equilibrium and reversibility Novel explanation of entropy and the second law of thermodynamics Presents abstract ideas in an easy to understand manner Includes solved examples and end of chapter problems Accompanied by a website hosting a solutions manual
Download or read book Diesel Engine System Design written by Qianfan Xin and published by Elsevier. This book was released on 2011-05-26 with total page 1087 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diesel Engine System Design links everything diesel engineers need to know about engine performance and system design in order for them to master all the essential topics quickly and to solve practical design problems. Based on the author's unique experience in the field, it enables engineers to come up with an appropriate specification at an early stage in the product development cycle. Links everything diesel engineers need to know about engine performance and system design featuring essential topics and techniques to solve practical design problems Focuses on engine performance and system integration including important approaches for modelling and analysis Explores fundamental concepts and generic techniques in diesel engine system design incorporating durability, reliability and optimization theories
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 Reflections on the Motive Power of Heat and on Machines Fitted to Develop that Power written by Sadi Carnot and published by . This book was released on 1890 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diesel s Engine written by C. Lyle Cummins (Jr.) and published by . This book was released on 2022-04 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Power Plant written by and published by . This book was released on 1915 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Bottomless Well written by Peter W Huber and published by Basic Books. This book was released on 2007-03-19 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sheer volume of talk about energy, energy prices, and energy policy on both sides of the political aisle suggests that we must know something about energy. But according to Peter Huber and Mark Mills, the things we "know" are mostly myths. In The Bottomless Well , Huber and Mills debunk the myths and show how a better understanding of energy will radically change our views and policies on a number of very controversial issues. They explain why demand will never go down, why most of what we think of as "energy waste" actually benefits us; why greater efficiency will never lead to energy conservation; and why the energy supply is infinite-it's quality of energy that's scarce and expensive. The Bottomless Well will also revolutionize our thinking about the automotive industry (gas prices don't matter and the hybrid engine is irrelevant), coal and uranium, the much-maligned power grid (it's the worst system we could have except for all the others), what energy supplies mean for jobs and GDP, and many other hotly debated subjects.
Download or read book Mixture Formation in Internal Combustion Engines written by Carsten Baumgarten and published by Springer Science & Business Media. This book was released on 2006-09-28 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: A systematic control of mixture formation with modern high-pressure injection systems enables us to achieve considerable improvements of the combustion pr- ess in terms of reduced fuel consumption and engine-out raw emissions. However, because of the growing number of free parameters due to more flexible injection systems, variable valve trains, the application of different combustion concepts within different regions of the engine map, etc., the prediction of spray and m- ture formation becomes increasingly complex. For this reason, the optimization of the in-cylinder processes using 3D computational fluid dynamics (CFD) becomes increasingly important. In these CFD codes, the detailed modeling of spray and mixture formation is a prerequisite for the correct calculation of the subsequent processes like ignition, combustion and formation of emissions. Although such simulation tools can be viewed as standard tools today, the predictive quality of the sub-models is c- stantly enhanced by a more accurate and detailed modeling of the relevant pr- esses, and by the inclusion of new important mechanisms and effects that come along with the development of new injection systems and have not been cons- ered so far. In this book the most widely used mathematical models for the simulation of spray and mixture formation in 3D CFD calculations are described and discussed. In order to give the reader an introduction into the complex processes, the book starts with a description of the fundamental mechanisms and categories of fuel - jection, spray break-up, and mixture formation in internal combustion engines.
Download or read book Motor Record written by and published by . This book was released on 1919 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
