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e-book
Direct Energy Conversion discusses both the physics behind energy conversion processes and a wide variety of energy conversion devices. A direct energy conversion process converts one form of energy to another through a single process. The first half of this book surveys multiple devices that convert to or from electricity including piezoelectric devices, antennas, solar cells, light emitting diodes, lasers, thermoelectric devices, and batteries. In these chapters, physical effects are discussed, terminology used by engineers in the discipline is introduced, and insights into material selection is studied. The second part of this book puts concepts of energy conversion in a more abstract framework. These chapters introduce the idea of calculus of variations and illuminate relationships between energy conversion processes.
- Subjects:
- Electrical Engineering and Mechanical Engineering
- Keywords:
- Direct energy conversion Textbooks
- Resource Type:
- e-book
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MOOC
Electric powertrains are estimated to propel a large part of road vehicles in the future, due to their high efficiency and zero tailpipe emissions. But, the cost and weight of batteries and the time to charge them are arguments for the conventional powertrain in many vehicles. This makes it important for engineers working with vehicles to understand how both these powertrains work, and how to determine their performance and energy consumption for different type of vehicles and different ways of driving vehicles. This course is aimed at learners with a bachelor's degree or engineers in the automotive industry who need to develop their knowledge about electric powertrains. In this course, you will learn how electric and conventional combustion engine powertrains are built and how they work. You will learn methods to calculate their performance and energy consumption and how to simulate them in different driving cycles. You will also learn about the basic function, the main limits and the losses of: Combustion engines, Transmissions Electric machines, Power electronics Batteries. This knowledge will also be a base for understanding and analysing different types of hybrid vehicles, discussed in the course, Hybrid Vehicles. As a result of support from MathWorks, students will be granted access to MATLAB/Simulink for the duration of the course.
- Subjects:
- Electrical Engineering, Mechanical Engineering, and Transportation
- Keywords:
- Electric vehicles Automobiles -- Power trains
- Resource Type:
- MOOC
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Courseware
This is an advanced course on modeling, design, integration and best practices for use of machine elements such as bearings, springs, gears, cams and mechanisms. Modeling and analysis of these elements is based upon extensive application of physics, mathematics and core mechanical engineering principles (solid mechanics, fluid mechanics, manufacturing, estimation, computer simulation, etc.).
- Subjects:
- Mechanical Engineering
- Keywords:
- Engineering design Machine design
- Resource Type:
- Courseware
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Courseware
This course covers: Fundamental concepts; fluid statics; fluid dynamics; Bernoulli's equation; control-volume analysis; basic flow equations of conservation of mass, momentum, and energy; differential analysis; potential flow; viscous incompressible flow.
- Subjects:
- Aeronautical and Aviation Engineering and Mechanical Engineering
- Keywords:
- Fluid mechanics
- Resource Type:
- Courseware
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Courseware
The following topics are covered: 1. Turning performance (three dimensional equations of motion, coordinate systems, Euler angles, transformation matrices) 2. Airfield performance (take-off and landing) 3. Unsteady climb and descent (including minimum time to climb problem) 4. Cruise flight and transport performance 5. Equations of motion with a wind gradient present 6. Equations of motion applied to various phases of space flight 7. Launch, Vertical flight, delta-V budget, burn out height, staging 8. Gravity perturbations to satellite orbits, J2 effect for low earth orbit satellites, J2,2 effect for Geostationary Earth Orbit sattelites leading to contribution in ï„V budget 9. Patched conics approach for interplanetary flight, gravity assist effect / options for change of excess velocity (2d, 3d), Launch, in orbit insertion.
- Subjects:
- Aeronautical and Aviation Engineering and Mechanical Engineering
- Keywords:
- Aerodynamics Astrodynamics
- Resource Type:
- Courseware
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e-book
This book deals with an introduction to the flow of compressible substances (gases). The main difference between compressible flow and almost incompressible flow is not the fact that compressibility has to be considered. Rather, the difference is in two phenomena that do not exist in incompressible flow. The first phenomenon is the very sharp discontinuity (jump) in the flow in properties. The second phenomenon is the choking of the flow. Choking is when downstream variations don't effect the flow. Though choking occurs in certain pipe flows in astronomy, there also are situations of choking in general (external) flow.
- Subjects:
- Aeronautical and Aviation Engineering and Mechanical Engineering
- Keywords:
- Fluid dynamics Gas dynamics Textbooks
- Resource Type:
- e-book
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Video
From the printing press to the digital camera, innovation has often democratized the creative arts. In this forward-looking talk, music producer Drew Silverstein demos a new software that allows anyone to create professional-grade music without putting human musicians out of work.
- Subjects:
- Technology, Performing Arts, and Mechanical Engineering
- Keywords:
- Technological innovations -- Social aspects Music technology Composition (Music)
- Resource Type:
- Video
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MOOC
Why are hybrid vehicles still more common than battery electric ones? Why are electric vehicles still more expensive than conventional or hybrid ones? In this course, you will get the answers to this and much more. While electric motors can improve vehicles regarding performance, energy consumption and emissions, they suffer from high cost and weight of batteries. Smart combinations of electric motors and combustion engines in a hybrid powertrain can combine these strengths with the advantages of combustion engines. This course is aimed at learners with a bachelor's degree or engineers in the automotive industry who need to develop their knowledge about hybridpowertrains. Inthis course, we willexamine different mechanical layouts of hybrid powertrains and how they influence the performance and complexity of the powertrain. Different sizing of powertrains in micro, mild, full hybrids, as well as plug-in hybrids, is also discussed and you'll learn how they can be modelled and analyzed for example by simulation of driving cycles. You will also learn about the Energy Management system and how this controls the hybrid powertrain modes and when to charge and discharge the battery. As a result of support from MathWorks, students will be granted access to MATLAB/Simulink for the duration of the course.
- Subjects:
- Electrical Engineering, Mechanical Engineering, and Transportation
- Keywords:
- Electric vehicles Hybrid electric vehicles
- Resource Type:
- MOOC
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Courseware
This course studies the fundamentals of how the design and operation of internal combustion engines affect their performance, efficiency, fuel requirements, and environmental impact. Topics include fluid flow, thermodynamics, combustion, heat transfer and friction phenomena, and fuel properties, with reference to engine power, efficiency, and emissions.
- Subjects:
- Mechanical Engineering
- Keywords:
- Internal combustion engines
- Resource Type:
- Courseware
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Courseware
This course introduces thermodynamic principles; open and closed systems representative of engineering problems; and first and second law of thermodynamics with applications to engineering systems and design. Topics include: thermodynamic concepts, thermodynamic properties, the first law of thermodynamics, first law analysis for a control volume, the second law of thermodynamics, entropy, and second law analysis for a control volume.
- Subjects:
- Aeronautical and Aviation Engineering and Mechanical Engineering
- Keywords:
- Thermodynamics
- Resource Type:
- Courseware