Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download The Most Efficient Engine PDF full book. Access full book title The Most Efficient Engine by John D. Jacoby. Download full books in PDF and EPUB format.
Author: John D. Jacoby Publisher: CreateSpace ISBN: 9781441464392 Category : Science Languages : en Pages : 146
Book Description
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
Author: John D. Jacoby Publisher: CreateSpace ISBN: 9781441464392 Category : Science Languages : en Pages : 146
Book Description
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
Author: National Academies of Sciences, Engineering, and Medicine Publisher: National Academies Press ISBN: 0309440998 Category : Technology & Engineering Languages : en Pages : 123
Book Description
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.
Author: National Research Council Publisher: National Academies Press ISBN: 0309216389 Category : Science Languages : en Pages : 373
Book Description
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.
Author: National Research Council Publisher: National Academies Press ISBN: 0309373913 Category : Science Languages : en Pages : 466
Book Description
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.
Author: Institution of Mechanical Engineers Publisher: Woodhead Publishing ISBN: 178242184X Category : Technology & Engineering Languages : en Pages : 263
Book Description
This book presents the papers from the Internal Combustion Engines: Performance, fuel economy and emissions held in London, UK. This popular international conference from the Institution of Mechanical Engineers provides a forum for IC engine experts looking closely at developments for personal transport applications, though many of the drivers of change apply to light and heavy duty, on and off highway, transport and other sectors. These are exciting times to be working in the IC engine field. With the move towards downsizing, advances in FIE and alternative fuels, new engine architectures and the introduction of Euro 6 in 2014, there are plenty of challenges. The aim remains to reduce both CO2 emissions and the dependence on oil-derivate fossil fuels whilst meeting the future, more stringent constraints on gaseous and particulate material emissions as set by EU, North American and Japanese regulations. How will technology developments enhance performance and shape the next generation of designs? The book introduces compression and internal combustion engines’ applications, followed by chapters on the challenges faced by alternative fuels and fuel delivery. The remaining chapters explore current improvements in combustion, pollution prevention strategies and data comparisons. Presents the latest requirements and challenges for personal transport applications Gives an insight into the technical advances and research going on in the IC Engines field Provides the latest developments in compression and spark ignition engines for light and heavy-duty applications, automotive and other markets
Author: National Research Council Publisher: National Academies Press ISBN: 0309159474 Category : Science Languages : en Pages : 251
Book Description
Technologies and Approaches to Reducing the Fuel Consumption of Medium- and Heavy-Duty Vehicles evaluates various technologies and methods that could improve the fuel economy of medium- and heavy-duty vehicles, such as tractor-trailers, transit buses, and work trucks. The book also recommends approaches that federal agencies could use to regulate these vehicles' fuel consumption. Currently there are no fuel consumption standards for such vehicles, which account for about 26 percent of the transportation fuel used in the U.S. The miles-per-gallon measure used to regulate the fuel economy of passenger cars. is not appropriate for medium- and heavy-duty vehicles, which are designed above all to carry loads efficiently. Instead, any regulation of medium- and heavy-duty vehicles should use a metric that reflects the efficiency with which a vehicle moves goods or passengers, such as gallons per ton-mile, a unit that reflects the amount of fuel a vehicle would use to carry a ton of goods one mile. This is called load-specific fuel consumption (LSFC). The book estimates the improvements that various technologies could achieve over the next decade in seven vehicle types. For example, using advanced diesel engines in tractor-trailers could lower their fuel consumption by up to 20 percent by 2020, and improved aerodynamics could yield an 11 percent reduction. Hybrid powertrains could lower the fuel consumption of vehicles that stop frequently, such as garbage trucks and transit buses, by as much 35 percent in the same time frame.
Author: E. Torenbeek Publisher: Springer Science & Business Media ISBN: 9401732027 Category : Technology & Engineering Languages : en Pages : 607
Book Description
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.
Author: Lino Guzzella Publisher: Springer Science & Business Media ISBN: 3642107753 Category : Technology & Engineering Languages : en Pages : 362
Book Description
Internal combustion engines (ICE) still have potential for substantial improvements, particularly with regard to fuel efficiency and environmental compatibility. In order to fully exploit the remaining margins, increasingly sophisticated control systems have to be applied. This book offers an introduction to cost-effective model-based control-system design for ICE. The primary emphasis is put on the ICE and its auxiliary devices. Mathematical models for these processes are developed and solutions for selected feedforward and feedback control-problems are presented. The discussions concerning pollutant emissions and fuel economy of ICE in automotive applications constantly intensified since the first edition of this book was published. Concerns about the air quality, the limited resources of fossil fuels and the detrimental effects of greenhouse gases exceedingly spurred the interest of both the industry and academia in further improvements. The most important changes and additions included in this second edition are: restructured and slightly extended section on superchargers, short subsection on rotational oscillations and their treatment on engine test-benches, complete section on modeling, detection, and control of engine knock, improved physical and chemical model for the three-way catalytic converter, new methodology for the design of an air-to-fuel ratio controller, short introduction to thermodynamic engine-cycle calculation and corresponding control-oriented aspects.
Author: Sanjeev Chandra Publisher: John Wiley & Sons ISBN: 1119013186 Category : Technology & Engineering Languages : en Pages : 400
Book Description
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
Author: Vaclav Smil Publisher: MIT Press ISBN: 0262518767 Category : Technology & Engineering Languages : en Pages : 271
Book Description
The story of how diesel engines and gas turbines, used to power cargo ships and jet airplanes, made today's globally integrated economy possible. The many books on globalization published over the past few years range from claims that the world is flat to an unlikely rehabilitation of Genghis Khan as a pioneer of global commerce. Missing from these accounts is a consideration of the technologies behind the creation of the globalized economy. What makes it possible for us to move billions of tons of raw materials and manufactured goods from continent to continent? Why are we able to fly almost anywhere on the planet within twenty-four hours? In Prime Movers of Globalization, Vaclav Smil offers a history of two key technical developments that have driven globalization: the high-compression non-sparking internal combustion engines invented by Rudolf Diesel in the 1890s and the gas turbines designed by Frank Whittle and Hans-Joachim Pabst von Ohain in the 1930s. The massive diesel engines that power cargo ships and the gas turbines that propel jet engines, Smil argues, are more important to the global economy than any corporate structure or international trade agreement. Smil compares the efficiency and scale of these two technologies to prime movers of the past, including the sail and the steam engine. The lengthy processes of development, commercialization, and diffusion that the diesel engine and the gas turbine went through, he argues, provide perfect examples of gradual technical advances that receive little attention but have resulted in epochal shifts in global affairs and the global economy.
Author: John D. Jacoby
Author: John D. Jacoby
Author: National Academies of Sciences, Engineering, and Medicine
Author: National Research Council
Author: National Research Council
Author: Institution of Mechanical Engineers
Author: National Research Council
Author: E. Torenbeek
Author: Lino Guzzella
Author: Sanjeev Chandra
Author: Vaclav Smil