Hello/Salam, welcome to ewindfly Webcasting Home page. Here you learn about Stories of the Jiant Dwarf. Please bookmark it for future reference (ctrl-D). This page was created by Afsaneh Cooper a PhD student. Afsaneh is interested in Super Flywheel Education to the Engineers.She does research how she can enhances her skills to teach more effectively to engineers about Super Flywheel.

During 1997-1999 Afsaneh Cooper taught Western Power Corporation in Western Australia about Super Flywheel by sending the extract of her PhD thesis to them. Dr Engineer Ebert who was responsible for Denham Wind Power Station, used Afsaneh's ideas in that Thesis extract document to choose a Flywheel Energy Storage System for the Denham Wind Power Station. The link to that station is:
Denham Flywheel Energy Strage System
Dr Ebert Low Speed Flywheel which did not work due to my thesis not being handed to him, he could only read the extract of it

In 2001-2002 Afsaneh taught the Department of Education, Western Power Corporation, and Murdoch University staff about her new ideas in renewable energy education to school students in Western Australia. She sent emails about her new ideas in 2001 proposal in renewable energy education to all of them. Her ideas were indirectly applied to Parkland renewable energy education project in 2002. A link to that project is:
Renewable Energy Education: Kings Park and Botanic Garden Project

I have enrolled so far 5 Mechanical/Electrical engineers online to teach them about Super Flywheel. Although the number of my e-students are not many compared to conventional classes, but these students each have an important role in Iranian industry of Super Flywheel, that they can make decisions about design, manufacture, and production of this energy storage system in Iran, based on my teaching.

Tehran suffers too much from high pollution with about 12 million population most driving their smoky cars in Tehran streets.The pollution in Tehran is so bad, which affected my voice as soon as I arrived Tehran in 1999 for holidays. I could not speak, and had a hard time using my voice, as my throat was blocked due to allergic reaction to that polluted air in Tehran.One can imagine what a great benefit is in my teaching a subject to these students, for those Tehran patients who severely suffer from Asthma, air related allergies, lung diseases, etc.

I decided to do some thing about it, so I am designing this Ed-Media website to teach to Iranian engineers how to design, and manufacture flywheel for Residential Wind Turbine.Also I will teach them in my Workshop 2 how to design and manufacture Fly-Cylinder for Hypercar and Urban car.

I suggest when you login this Home Page, first click on 'Notice Board' Sub-Menu, then on 'Notes for Students' sub-Menu. This way you would know what is up today, and what the new lesson is about, and what you are required to do for your lesson Activity.I usually upload an article for you to read first, prior to my teaching of same lesson, in order you read that and we discuss it as soon as we meet for the lesson. Those articles are in Sub-Menu: Journal.Sub-Menus: Conference, [Audio,Video, CAD, Workshop, Lab] Wizards are for various Activities you can perform. You get all images by Sub-Menu: Gallery, all articles by Sub-Menu: Journal, all e-learning guides by Sub-Menu: Toolbox, and all the Outcomes under Sub-Menu: Learning Outcomes and all your assessment under Sub-menu: Students' Rubrics.

It is required as an e-student that you read link: 'ewindfly Chat by Yahoo' Messenger, which is on 'Toolbox' sub-Menu. Also you must have a headphone to plug in to your PC as soon as you meet me online for the lesson.

It is possible to record my Audio lessons at the same time we discuss the lesson together. Click on link: 'Speech recogniser: Voice-Text: ViaVoice' under sub-Menu: 'Toolbox'. My following email includes my yahoo ID = ewindfly it is for you to add me on your yahoo messenger, attend conferences with me online and we discuss collaborative constructive based lessons on Flywheel Energy Storage System. All students' file downloads are directed to my group on MSN called: ewindfly, which you can join that group by emailing to: ewindfly@groups.msn.com and can see the group by clicking on 'Archive & Forum' sub-Menu.

New students are welcome, with an introductory email to me with a short biography about yourself, including why you are interested in learning these lessons.Sub-Menu Enrollment also can be used for your online enrollment.This option is not available yet.

Flywheels

The Kinetic Battery Energy storage in a flywheel is as old as the potters wheel. Modern super flywheels store kinetic energy in a high speed rotating drum which forms the rotor of a motor generator. When surplus electrical energy is available it is used to speed up the drum. When the energy is needed the drum provides it by driving the generator. Modern flywheels use composite rotors made with carbon-fiber materials. The rotors have a very high strength-to-density ratio, and rotate at speeds up to 100,000 rpm. in a vacuum chamber to minimize aerodynamic losses. The use of superconducting electromagnetic bearings can virtually eliminate energy losses through friction.

The magnitude of the engineering challenge should not be underestimated. A 1 foot diameter flywheel, one foot in length, weighing 23 pounds spinning at 100,000 rpm will store 3 kWh of energy. However at this rotational speed the surface speed at the rim of the flywheel will be 3570 mph. or 4.8 times the speed of sound and the centrifugal force on particles at the rim is equivalent to 1.7 million G. The tensile strength of material used for the flywheel rim must be over 500,000 psi to stop the rotor from flying apart.

Advanced flywheels are used for protecting against interruptions to the national electricity grid.The flywheel provides power during period between the loss of utility supplied power and either the return of utility power or the start of a sufficient back-up power system (i.e., diesel generator). Flywheels can discharge at 100 kilowatts (kW) for 15 seconds and recharge immediately at the same rate, providing 1-30 seconds of ride-through time. Back-up generators are typically online within 5-20 seconds.

Flywheels have also been proposed as a power booster for electric vehicles. Speeds of 100,000 rpm have been used to achieve very high power densities, however containment of the high speed rotor in case of accident or mechanical failure would require a massive enclosure negating any power density advantages. The huge gyroscopic forces of these high speed flywheels are an added complication. Practicalities have so far prevented the large scale adoption of flywheels for portable applications

Afsaneh