Refine Your Search

Topic

Search Results

Book

Advances in Electric Propulsion

2017-05-18
Aviation propulsion development continues to rely upon fossil fuels for the vast majority of commercial and military applications. ...With those challenges in mind, research and development of more efficient and electric propulsion systems will expand. Fuel-cell technology is but one example that addresses such emission and resource challenges, and others, including negligible acoustic emissions and the potential to leverage current infrastructure models. ...Requirements for greater flight time, stealth characteristics, and thrust-to-power ratios adds urgency to the development of efficient propulsion methods for applications such as UAVs, which looks to technologies such as asymmetrical capacitors to enhance electric propulsion efficiency.
Book

Gas Turbine Propulsion Systems

2011-01-01
Major changes in gas turbine design, especially in the design and complexity of engine control systems, have led to the need for an up-to-date, systems-oriented treatment of gas turbine propulsion. Pulling together all of the systems and subsystems associated with gas turbine engines in aircraft and marine applications, this book discusses the latest developments in the field. ...Chapters include: • Aircraft engine systems functional overview • Marine propulsion systems • Fuel control and power management systems • Engine lubrication and scavenging systems • Nacelle and ancillary systems • Engine certification • Unique engine systems • Future development in gas turbine propulsion systems Written from a wholly practical perspective by two authors with long careers in the gas turbine and fuel systems industries, this book provides an excellent resource for project and program managers in the gas turbine engine community, the aircraft OEM community, and tier 1 equipment suppliers in Europe and the United States. ...Chapters include: • Aircraft engine systems functional overview • Marine propulsion systems • Fuel control and power management systems • Engine lubrication and scavenging systems • Nacelle and ancillary systems • Engine certification • Unique engine systems • Future development in gas turbine propulsion systems Written from a wholly practical perspective by two authors with long careers in the gas turbine and fuel systems industries, this book provides an excellent resource for project and program managers in the gas turbine engine community, the aircraft OEM community, and tier 1 equipment suppliers in Europe and the United States.
Book

So You Want to Design Engines: UAV Propulsion Systems

2018-05-30
As a result, UAV research and development will contribute to a major portion of spending in the next decades—with a significant emphasis on propulsion technologies. This book will cover several UAV propulsion technologies, ranging from modification of conservative designs to assessing the potential of unconventional arrangements. ...Each chapter provides a glimpse of how researchers are leveraging different fuel types, powerplants, and system architectures in the pursuit of powerful, efficient, and robust UAV propulsion. By developing higher-performing propulsion systems—whether through the refinement of existing technologies like two-stroke heavy-fuel engines and hybrid-electric arrangements or the investigation of new concepts such as dielectric barrier discharge—engineers will be able to increase UAV capabilities for the world’s developing aviation needs.
Book

Electric Flight Technology: The Unfolding of a New Future

2018-05-28
The environmental impact of hydrocarbon-burning aircraft is one of the main motivations for the move to electric propulsion in aerospace. Also, cars, buses, and trucks are incorporating electric or hybrid-electric propulsion systems, reducing the pressure on hydrocarbons and lowering the costs of electrical components. ...Also, cars, buses, and trucks are incorporating electric or hybrid-electric propulsion systems, reducing the pressure on hydrocarbons and lowering the costs of electrical components. ...The use of electric propulsion in airplanes is not a new phenomenon. However, it is only recently that it has taken off in a concrete manner with a viable commercial future.
Book

Elements of Aircraft Pollution

2005-01-01
The text originates from a MSc Aerospace Engineering course on airplane propulsion, noise, and pollutant emissions, given by the author at the Faculty of Aerospace Engineering of Delft University of Technology.
Book

Lost Fighters: A History of U.S. Jet Fighter Programs That Didn't Make It

2006-12-06
This book, by Bill Holder, discusses the "Lost Fighter" turbojet and turboprop propulsion systems of the exciting jet fighter era in the United States since the mid-1940s. Until now, very little has been published about these fascinating fighter activities that, for a variety of reasons, did not reach fruition.
Book

Gas Turbine Blade Cooling

2018-12-10
Gas turbines play an extremely important role in fulfilling a variety of power needs and are mainly used for power generation and propulsion applications. The performance and efficiency of gas turbine engines are to a large extent dependent on turbine rotor inlet temperatures: typically, the hotter the better.
Book

Combustion Instability

2008-01-01
Combustion instability has long been recognized as one of the most important but difficult problems in the development of propulsion systems. The U.S. and the former Soviet Union were simultaneously working during the Cold War to solve the instability problem.
Book

Fundamentals of Electric Aircraft

2018-12-18
Fundamentals of Electric Aircraft was developed to explain what the electric aircraft stands for by offering an objective view of what can be expected from the giant strides in innovative architectures and technologies enabling aircraft electrification. Through tangible case studies, a deep insight is provided into this paradigm shift cutting across various aircraft segments – from General Aviation to Large Aircraft. Addressing design constraints and timelines foreseen to reach acceptable performance and maturity levels, Fundamentals of Electric Aircraft puts forward a general view of the progress made to date and what to expect in the years to come. Drawing from the expertise of four industry veterans, Pascal Thalin (editor), Ravi Rajamani, Jean-Charles Mare and Sven Taubert (contributors), it addresses futuristic approaches but does not depart too far from the operational down-to-earth realities of everyday business.
Book

Liquid Rocket Engine: Thrust Chamber Parametric Modeling

2018-11-15
The great engineering achievement required to overcome most of the challenges and obstacles that prevented turning rocket design from art into science took place in Europe and the United States between the 1930s and the 1950s. With the vast majority of the engines currently in operation developed in the “pre-computer” age, there are new opportunities to update the design methodologies using technology that can now handle highly complex calculations fast. The space sector with an intense focus on efficiency is driving the need for updating, adapting or replacing the old modeling practices with new tools capable of reducing the volume of resources and the time required to complete simulations and analysis. This book presents an innovative parametric model applicable to the project of some elements of the liquid rocket thrust chamber with the level of detail and accuracy appropriate to the preliminary design phase.
Book

Aircraft Thermal Management: Systems Architectures

2016-03-02
Aircraft thermal management (ATM) is increasingly important to the design and operation of commercial and military aircraft due to rising heat loads from expanded electronic functionality, electric systems architectures, and the greater temperature sensitivity of composite materials compared to metallic structures. It also impacts engine fuel consumption associated with removing waste heat from an aircraft. More recently the advent of more electric architectures on aircraft, such as the Boeing 787, has led to increased interest in the development of more efficient ATM architectures by the commercial airplane manufacturers. The ten papers contained in this book describe aircraft thermal management system architectures designed to minimize airplane performance impacts which could be applied to commercial or military aircraft.
Book

Energy Harvesting/Regeneration for Electric Vehicles Land, Water & Air 2015-2025

2014-12-01
The electric vehicle industry - land, water and air - is rapidly rising to become a market of over $533 billion by 2025. Some run entirely on harvested energy as with solar lake boats. Others recycle energy as with regenerative braking of cars, buses and military vehicles harvesting kinetic energy. Others use different forms of harvesting either to charge the traction batteries, or to drive autonomous device. In some cases, harvesting is making completely new forms of electric vehicle possible such as "glider" Autonomous Underwater Vehicles (AUVs) that can stay at sea for years, gaining electricity from both wave power and sunshine. Multiple forms of energy harvesting on one vehicle are becoming more common from cars to superyachts.
Book

Electric Motors for Hybrid and Pure Electric Vehicles 2015-2025: Land, Water, Air

2014-11-01
The electric vehicle business will approach a massive $500 billion in 2025 with the traction motors segment capturing over $25 billion. Traction motors propelling land, water and air vehicles along can consist of one inboard motor or - an increasing trend - more than one near the wheels, in the wheels, in the transmission or ganged to get extra power. Complex trends in this industry are explained with this updated report, and future winning suppliers are identified alongside market forecasts. The information is especially important as hybrid vehicles may have the electric motor near the conventional engine or its exhaust, and this may mean they need to tolerate temperatures never before encountered in pure electric vehicles. Motors for highly price-sensitive markets such as electric bikes, scooters, e-rickshaws and micro EVs avoid the price hikes of neodymium and other rare earths in the magnets.
Book

Engine Revolutions

1991-02-01
Readers will be fascinated by Bentele's stories of the setbacks and the successes he encountered over the course of his acclaimed career. The dawn of the jet age, developments at the end of World War II, the development of automotive and aircraft gas turbines, and the rotary engine era are just some of the historical events which are recounted in this book.
Book

Aircraft Thermal Management: Integrated Energy Systems Analysis

2016-03-02
The simultaneous operation of all systems generating, moving, or removing heat on an aircraft is simulated using integrated analysis which is called Integrated Energy System Analysis (IESA) for this book. Its purpose is to understand, optimize, and validate more efficient system architectures for removing or harvesting the increasing amounts of waste heat generated in commercial and military aircraft. In the commercial aircraft industry IESA is driven by the desire to minimize airplane operating costs associated with increased system weight, power consumption, drag, and lost revenue as cargo space is devoted to expanded cooling systems. In military aircraft thermal IESA is also considered to be a key enabler for the successful implementation of the next generation jet fighter weapons systems and countermeasures. This book contains a selection of papers relevant to aircraft thermal management IESA published by SAE International.
Book

Range Extenders for Electric Vehicles Land, Water & Air 2015-2025

2014-10-01
Half the electric vehicle market value lies in larger road vehicles, notably cars, and here the legal restrictions are weaker or non-existent, and range anxiety compels most people to buy hybrids if they go electric at all. Over eight million hybrid cars will be made in 2025, each with a range extender, the additional power source that distinguishes them from pure electric cars. Add to that significant money spent on the same devices in buses, military vehicles, boats and so on and a major new market emerges. Whereas today's range extenders usually consist of little more than off- the- shelf internal combustion engines, these are rapidly being replaced by second- generation range extenders consisting of piston engines designed from scratch for fairly constant load. However, a more radical departure is the third- generation micro turbines and fuel cells that work at constant load.
Book

Spaceflight Revolution

2004-01-01
A revolution in spaceflight is likely soon with the prospect of everyday access to orbit within fifteen years. Costly launch vehicles based on ballistic missiles will be replaced by 'spaceplanes', using technology that exists today. Spaceplane development has, in effect, been suppressed by entrenched thinking and short-term vested interests. But the present monopoly of large government space agencies is becoming unsupportable, and the market that understands the very real opportunities for space travel will be reaching critical mass in the near future. This book examines these issues and shows why space tourism will one day become the single largest business in space, and how astronomy and environmental science will be transformed by low-cost access making possible instruments vastly larger than those of today.
Book

Design for Additive Manufacturing: Concepts and Considerations for the Aerospace Industry

2018-07-20
In the coming decades, the growth in AM will likely be driven by production parts that leverage this increase in design freedom to manufacture parts of higher performance and improved material utilization. Contrary to popular opinion, however, AM processes do have their constraints and limitations - not everything can be manufactured with AM, and even when it is feasible, not everything should. Design for Additive Manufacturing: Concepts and Considerations for the Aerospace Industry, edited by Dr. Dhruv Bhate, is a collection of ten seminal SAE International technical papers, which cover AM from the perspective of the appropriateness (should) and feasibility (can) of using AM for manufacturing of parts and tooling. Although AM technologies have been around for three decades, many in the industry believe that we are merely at the beginning of the revolution in the design-driven aspects of this technology.
X