Generator design

[lengould]

Can anyone help me with a formula? I need to calculate the force required to move the piston of a linear generator from one position to the other. Specs currently are: 9 kW output at 409 V peak (240 vrms), stator comprised of 188 x 2mm E punchings in a circle to form a cylinder 12 cm diameter, dimensions of E's is 5cm x 5cm coil spaces, 1.46 cm steel width. Armature made of 4 NeFeB permanent magnets with total face area of .00553 sq m and rated 1.2 Tesla. Winding 2 coils ea 2152 turns #20 magnet wire connected "4 in hand", e.g. 4 parallel.

So my question is, will my estimated 597 Newtons force on the piston be able to move it off position TDC onto position BDC?

Thanks for any input.


Pechez les vaches.

 

[alehman]

This is a very specialized application. A modern machines text might cover this, or you may need to find a book on linear machines. Also you might try searching IEEE for articles on linear generators.

http://ieeexplore.ieee.org/

 

[mc5w]

Why don't you just build the thing and hook it up to a dummy load and a dynamometer?

Mike Cole, mc5w@earthlink.net

 

[lengould]

alehman: Thanks for pointers. Unfortunately no joy on IEEE site, my search there found nothing.

mc5w: Agreed, that looks like only way. Was hoping there might be some math to pre-design with first but apparently not.


Pechez les vaches.