Motorer og kraftoverføring

This book presents the select proceedings of the 3rd National Aerospace Propulsion Conference (NAPC 2020). It discusses the recent trends in the area of aerospace propulsion technologies covering both air-breathing and non-air-breathing propulsion. The topics covered include state-of-the-art design, analysis and developmental testing of gas turbine engine modules and sub-systems like compressor, combustor, turbine and alternator; advances in spray injection and atomization; aspects of combustion pertinent to all types of propulsion systems and nuances of space, missile and alternative propulsion systems. The book will be a valuable reference for beginners, researchers and professionals interested in aerospace propulsion and allied fields.

Ergonomics teaches how to design technology in such a way that it is optimally adapted to the needs, wishes and characteristics of the user. In this context, the concept of the human-machine system has become established. In a systematic way and with a detailed view of the complicated technical and perceptual psychological and methodological connections, this book explains the basics of automotive ergonomics with numerous examples. The application is shown in examples such as package, design of displays and control elements, of environmental ergonomics such as lighting, sound, vibrations, climate and smell. The design of driver assistance systems from an ergonomic perspective is also a central topic. The book is rounded off by methods of ergonomic vehicle development, the use of mock-ups, driving simulators and tests in real vehicles and prototypes. For the first time, those responsible in the automotive industry and in the field of relevant research are provided with a specialized systematic work that provides the ergonomic findings in the design of today's automobiles. This provides planners and designers of today's automobiles with concrete information for ergonomic product development, enabling them to keep an eye on decisive requirements and subsequent customer acceptance.This book is a translation of the original German 1st edition Automobilergonomie by  Heiner Bubb, Klaus Bengler, Rainer E. Grunen & Mark Vollrath, published by Springer Fachmedien Wiesbaden GmbH, part of Springer Nature in 2015. The translation was done with the help of artificial intelligence (machine translation by the service DeepL.com). A subsequent human revision was done primarily in terms of content, so that the book will read stylistically differently from a conventional translation. Springer Nature works continuously to further the development of tools for the production of books and on the related technologies to support the authors.

This book was written by a team of leading gear experts from across the globe, including contributions from USA, Germany, Poland, China, Russia, Ukraine, and Belarus. It provides readers with the latest accomplishments in the gear theory and gear cutting tool design.  Specialists can apply competencies gained from this book to quality control in gear manufacture, as well as to the conditions of their production. The book begins with a detailed discussion of the kinematics and geometry of geometrically-accurate gears and gear systems.  This is followed by an analysis of state-of-the-art gear manufacturing methods with focus on gear finishing operations.  Novel designs of gear transmission systems as well as gear theory and gear cutting tool design are also covered. 

Electric miniature drives are now present in a wide range of applications. In addition to classic mains-operated kitchen appliances, a wide variety of battery-operated devices with built-in electric motors are used in a domestic setting, from robotic vacuum cleaners through motor-operated heating valves to milk frothers. Electric miniature drives are somewhat less visible in daily use in optical devices, in laboratory automation or in special machinery construction.For electronics developers, the challenge is to keep an eye on the components of the power electronics, microcontroller and sensor technology that come together in the controlled electrical drive in a very small space from the point of view of Electromagnetic Compatibility (EMC) and to find marketable compromises.First, the book gives a brief overview of the development of the EMC topic and the current generalboundary conditions for bringing electric drives onto the market. After this, the effects, coupling paths and test methods for both the emitted interference and the interference immunity are presented. The sources of the different disturbances originating from a motor controller are named and linked to their effects. On this basis, the common EMC measures are then discussed step by step, and their effectiveness verified by means of the measurement result.This book is therefore aimed at users and supports them in setting up their end device in an EMC-compliant manner with a controlled miniature drive as a component. In addition, electronics developers learn the necessary basic measures to take EMC into account already in the development of motor controllers for miniature drives. If this is taken into account, such development projects can be successfully realised in an EMC-safe manner.About the content:. Challenge of EMC: Interference sources in electric drives, frequency components, from radio interference suppression to EMC. CE certification: EU directives for the operation of electric miniature drives. Interference emissions of devices: Conducted interference, coupling paths for electromagnetic interference, measurement methods and typical measurement results. Interference signals in controlled devices: Interference behaviour of a DC/DC converter, interference behaviour of a motor controller. Limiting interference emissions: Propagation paths, grounding and shielding, cable routing, filter and test results. Interference immunity of devices: Acceptance criteria, effects, measures. EMC measures for miniature drives: Integrated motor controllers, externally mounted motor controller, encoders . Additional measures to increase robustness: Coding, complementary signals (linedrivers), robustness of different interfaces

This book describes the feasibility and status of the use of alternative fuels in marine engineering, as well as the application of liquefied natural gas, biodiesel and their blends as marine fuels, and the combustion of synthetic coal-based fuels.Each chapter in the book ends with a summary, which gives the reader a quick and clear understanding of the main contents of the chapter. The book gives a lot of advice on the selection of equipment and parameters, fuel reserves and preparation for scholars related to alternative fuels in ships, and points them in the way. It contains lots of illustrations and tables and explains it in the form of chart comparison. The authors have developed mathematical models and methods for calculating the parameters of fuel systems for biodiesel fuels and liquefied natural gas. Recommendations for choosing the rational parameters of these systems are given, as are schematic solutions of the fuel systems, recommendations for selecting equipment, storing, and preparing the fuels. Application of the materials described in the book provides the SPP designers with a reliable tool for choosing rational characteristics of the fuel systems operating on alternative fuels and improving the efficiency of their application on ships.

The book collects the lectures and the status reports delivered during the "e;Eighth International Conference on Photochemical Conversion and Storage of Solar Energy"e;, IPS-8, held in Palermo (Italy) from 15th to 20th of July 1990. As usual, the main theme of the Conference was that of making the point about the trends and the developments of the studies related to the photochemical exploitation of solar energy and also to report the main lines of potential applications. Therefore the contributions reflect this point; they vary from those reporting basic and fundamental theories to those reporting cases of possible applications. For the sake of following the logical line which links each other the various contributions, we report the six areas in which the main theme of the conference was devided: (a) Electron and energy transfer in homogeneous and heterogeneous systems; (b) Photosynthesis: organized assemblies and biomimetic systems; (c) Photoelectrochemistry; (d) Photocatalysis: homogeneous and heterogeneous regime; (e) Environment: photochemical and photocatalytic processes; (f) Solar energy materials and photochemical engineering. It remains now to thank persons and institutions which made possible the organization of the Conference. The persons to thank are all the members of the International and National Organizing Committees and in particular Prof. A.Sclafani and Dr. L.Palmisano whose efforts were essential for the success of the Conference.

Provides an introduction to gas turbine and rocket propulsion for aerospace and mechanical engineers. This text is divided into four parts: basic concepts and gas dynamics; analysis of rocket propulsion systems; parametric and performance analysis of air breathing propulsion systems; and analysis and design of major gas turbine engine components.

The Vehicle Diesel Engine Start-up Process. Operational and Environmental Aspects offers insight into the start-up process of a vehicle diesel engine, and is the result of the author's academic research carried out for over more than 25 years.

Industrial and Process Furnaces: Principles, Design and Operation, Third Edition?continues to provide comprehensive coverage on all aspects of furnace operation and design, including topics essential for process engineers and operators to better understand furnaces. New to this edition are sections on production, handling and utilization of alternative fuels such as biomass, hydrogen and various wastes, modeling of the process, combustion and heat transfer, their benefits, advantages and limitations, mitigation and removal of CO2 , the role of solar and other renewable energy, recent research, and the practical approach of the Whyalla steelworks for harnessing solar energy for sustainable steelmaking, hydrogen and as a "clean fuel". The book also includes a discussion on the limitations of hydrogen supply owing to fresh water supply constraints, the difficulty of storing and transporting hydrogen, and the current sociopolitical impetus of CO2.

Research Paper (postgraduate) from the year 2019 in the subject Engineering - Chemical Engineering, , course: M.TECH, language: English, abstract: This work is an experimental study for the measurement of ignition delay characteristics of burning fuel sprays in cylindrical combustion chambers. It is carried out on hot air and high pressure. The objective of the study is to investigation the effect of hot air temperature and a well as high pressure on ignition delay of diesel fuel sprays. The effect of blending of n-Pentane with pure diesel was investigated. An experimental set up was design for this purpose with the emphasis on optical method for measurement of ignition delay at various pressures. The results presented here show that ignition delay of diesel fuel spray decreases with increase in the temperature and pressure of hot air. Results also show the effect of methyl group being more dominant at low ignition temperatures and that of alkyl group being more dominant at higher temperature. Blending of n-pentane with diesel fuel, increase its ignition delay at low ignition temperatures. However, as the concentration of blending fuel was increased beyond 30%, the ignition temperature increase. Ignition temperature for 40% pentane blends is much higher that the pure diesel.

Comprehensively covering the development of the internal combustion engine (ICE), the information presented in this volume captures expert knowledge and serves as an essential resource that illustrates the latest level of knowledge about engine development.

Then driver assistance systems like adaptive cruise control (ACC), electronic stability control (ESC), electronic course control and anti-collision control systems are considered.

Pumping Machinery Theory and Practice comprehensively covers the theoretical foundation and applications of pumping machinery. It covers characteristics of centrifugal pumps, axial flow pumps and displacement pumps and considers pumping machinery performance and operational-type problems.

In Victorian times the steam engine was the main source of mechanical power, and thousands were at work driving machinery in factories and pumping stations throughout Britain. This book gives an outline of the development of the stationary steam engine and explains in simple language how it works.

Begins with the history of thermal system design, and then covers current progress in computer design tools, 'pinch analysis' to improve thermal efficiency, applications of the exergy concept, thermoeconomics, and the potential for artificial intelligence and expert systems in the design of thermal systems.