More and more vehicles are being electrified. Mobile working machines and heavy trucks are not excluded, and these machines are often hydraulically intense. Electrification entails new requirements for the hydraulic system and its components, and these requirements must be taken into consideration. Hydraulic systems have looked similar for a long time, but now there is an opportunity to advance. Many things change when a diesel engine is replaced with an electric motor. For example, variable-speed control becomes more relevant, electric regeneration becomes possible, and the use of multiple prime movers becomes an attractive alternative. The noise from the hydraulic system will also be more noticeable when the diesel engine is gone. Furthermore, the introduction of batteries to the system makes the energy more valuable, since batteries are heavy and costly compared to a diesel tank. Therefore, it is commercially viable to invest in the hydraulic system. This thesis revolves around the heart of the hydraulic system, that also is the root of all evil. That is the pump. Traditionally, a pump has had either a fixed displacement or a continuously variable displacement. Here, the focus is on something in between, namely a pump with discrete displacement. The idea of discrete displacement is far from unique, but has not been investigated in detail in combination with variable speed before. In this thesis, a novel design for a quiet pump with discrete displacement is presented and analysed. The results show that discrete displacement is relevant from an energy perspective for machines working extensively at high pressure levels and with low flow rates, and that a few discrete values are enough to make a significant difference. However, for other cycles, the possible energy gains are very limited, but the discrete displacement can be a valuable feature if downsizing the electric machine is of interest.

Electrification: Accelerating the Energy Transition offers a widely applicable framework to delineate context-sensitive pathways by which this transition can be accelerated and lists the types of processes and structures that may hinder progress towards this goal. The framework draws insights from well-established literature, ranging from technological studies to socio-technical studies of energy transitions, on to strategic niche management approaches, (international) political economy approaches, and institutionalist literatures, while also adopting wider social theoretical ideas from structuration theory. Contributors discuss a multitude of case studies drawn from global examples of electrification projects. Brief case studies and text boxes help users further understand this domain and the technological, infrastructural and societal structures that may exercise significant powers. - Proposes a globally applicable, inclusive framework linking together several literatures of energy transition research (ranging from the social sciences to law and engineering) - Assesses the regional and national applicability of solutions, covering the societal structures and interests that shape the prospects of their implementation - Extends the analysis from technological and infrastructural solutions to the policies required to accelerate transition - Introduces several country level case studies, thus demonstrating how to harness niches of innovation, kick-start the adoption of a solution, and make it mainstream

Handbook of Farm, Dairy and Food Machinery Engineering is the essential reference for engineers who need to understand those aspects of the food industry from farm machinery to food storage facilities to the machinery that processes and packages our foods. The process of getting food from "farm to fork," as the saying goes, involves more than planting, harvesting, shipping, processing, packaging and distributing—though those are all key components. Effective and efficient food delivery systems are built around processes that maximize the effort while minimizing cost, time, and resource depletion. This comprehensive reference is for engineers who design and build machinery and processing equipment, shipping containers, and packaging and storage equipment. It includes cutting-edge coverage of microwave vacuum application in grain processing, cacao processing, fruit and vegetable processing, ohmic heating of meat, facility design, closures for glass containers, double seaming, and much more. - Provides cross-topic information for translational research and potential application - Focuses on design and controls – written for engineers by engineers – always with practical applications in mind - Includes design of machinery and facilities as well as theoretical basis for determining and predicting behavior of foods as they are handled and processed

Sustainable Energy Conversion for Electricity and Coproducts Comprehensive and a fundamental approach to the study of sustainable fuel conversion for the generation of electricity and for coproducing synthetic fuels and chemicals Both electricity and chemicals are critical to maintain our modern way of life; however, environmental impacts have to be factored in to sustain this type of lifestyle. Sustainable Energy Conversion for Electricity and Coproducts provides a unified, comprehensive, and a fundamental approach to the study of sustainable fuel conversion in order to generate electricity and optionally coproduce synthetic fuels and chemicals. The book starts with an introduction to energy systems and describes the various forms of energy sources: natural gas, petroleum, coal, biomass, and other renewables and nuclear. Their distribution is discussed in order to emphasize the uneven availability and finiteness of some of these resources. Each topic in the book is covered in sufficient detail from a theoretical and practical applications standpoint essential for engineers involved in the development of the modern power plant. Sustainable Energy Conversion for Electricity and Coproducts features the following: Discusses the impact of energy sources on the environment along with an introduction to the supply chain and life cycle analyses in order to emphasize the holistic approach required for sustainability. Not only are the emissions of criteria pollutants addressed but also the major greenhouse gas CO2 which is essential for the overall sustainability. Deals with underlying principles and their application to engineering including thermodynamics, fluid flow, and heat and mass transfer which form the foundation for the more technology specific chapters that follow. Details specific subjects within energy plants such as prime movers, systems engineering, Rankine cycle and the Brayton–Rankine combined cycle, and emerging technologies such as high-temperature membranes and fuel cells. Sustainable energy conversion is an extremely active field of research at this time. By covering the multidisciplinary fundamentals in sufficient depth, this book is largely self-contained suitable for the different engineering disciplines, as well as chemists working in this field of sustainable energy conversion.

This book reports on cutting-edge research and technical achievements in the field of hydraulic drives. The chapters, selected from contributions presented at the International Scientific-Technical Conference on Hydraulic and Pneumatic Drives and Controls, NSHP 2020, held on October 21-23, 2020, in Trzebieszowice, Poland, cover a wide range of topics such as theoretical advances in fluid technology, work machines in mining, construction, marine and manufacturing industry, and practical issues relating to the application and operation of hydraulic drives. Further topics include: safety and environmental issues associated with the use of machines with hydraulic drive, and new materials in design of hydraulic components. A special emphasis is given to new solutions for hydraulic components and systems as well as to the identification of phenomena and processes occurring during the operation of hydraulic and pneumatic systems.

Detailed coverage of the concepts of Hydraulics, Pneumatic, Control valves, Lever systems. Objective type questions included in each chapter. Detailed study of each and every topic in the chapter.

This book comprises select peer-reviewed proceedings of the 9th International and 49th National Conference on Fluid Mechanics and Fluid Power (FMFP 2022). This book brings together scientific ideas and engineering solutions put forth by researchers and practitioners from academia and industry in the important and ubiquitous field of fluid mechanics. The contents of this book focus on fundamental issues and perspective in fluid mechanics, measurement techniques in fluid mechanics, computational fluid and gas dynamics, instability, transition and turbulence, fluid-structure interaction, multiphase flows, microfluidics, bio-inspired fluid mechanics, aerodynamics, turbomachinery, propulsion and power and other miscellaneous topics in the broad domain of fluid mechanics. This book is a useful reference to researchers and professionals working in the broad field of mechanics.

A COMPLETE GUIDE TO FLUID POWER PUMPS AND MOTORS Written by an expert in the field of fluid power, this book provides proven methods for analyzing, designing, and controlling high-performance axial-piston swash-plate type machinery. Fluid Power Pumps and Motors: Analysis, Design, and Control offers a comprehensive mechanical analysis of hydrostatic machines and presents meticulous design guidelines for machine components. Detailed diagrams and useful formulas are included throughout. Using the results and techniques employed in this practical resource will reduce product delivery lead-time and costs to increase overall efficiency. COVERAGE INCLUDES: Fluid properties | Fluid mechanics | Mechanical analysis Piston pressure | Steady-state results | Machine efficiency Designing a cylinder block, valve plate, piston, slipper, swash plate, and shaft | Displacement controlled pumps Pressure controlled pumps

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