Alan Swithenbank - Revision history

Eric: Added a Category to the Page

2023-09-26T22:35:38Z

Added a Category to the Page

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Elifarley: Undo revision 99821 by Elifarley (talk)

2013-07-02T22:27:38Z

Undo revision 99821 by Elifarley (talk)

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	[[Solar_Turbine#Existing_Work		http://openfarmtech.org/index.php?title=Solar_Turbine#Existing_Work



	Looks~~\|]]~~like a very worthwhile project!		Looks like a very worthwhile project!

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2013-07-02T22:17:56Z

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	~~http://openfarmtech.org/index.php?title=~~Solar_Turbine#Existing_Work		[[Solar_Turbine#Existing_Work



	Looks like a very worthwhile project!		Looks\|]]like a very worthwhile project!

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2013-07-02T17:18:27Z

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	Sincerely,		Sincerely,
	Marcin		Marcin
	http://~~openfarmtech~~.org~~/weblog~~/		http://blog.opensourceecology.org/

	[[Category:Collaboration Discussions]]		[[Category:Collaboration Discussions]]

Conor at 16:29, 15 February 2011

2011-02-15T16:29:16Z

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	[[Category:~~Emails sent~~]]		[[Category:Collaboration Discussions]]

Marie.Byleen at 21:44, 17 January 2011

2011-01-17T21:44:06Z

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	Marcin		Marcin
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			[[Category:Emails sent]]

WikiSysop: New page: Alan Swithenbank to Marcin Jakubowski cc alans@cuervo.stanford.edu date Wed, Jun 4, 2008 at 11:55 AM subject Re: Solar Turbine proj...

2008-06-04T17:45:43Z

New page: Alan Swithenbank <alans@hmsxfer.stanford.edu> to Marcin Jakubowski <joseph.dolittle@gmail.com> cc alans@cuervo.stanford.edu date Wed, Jun 4, 2008 at 11:55 AM subject Re: Solar Turbine proj...

New page

Alan Swithenbank <alans@hmsxfer.stanford.edu>
to Marcin Jakubowski <joseph.dolittle@gmail.com>
cc alans@cuervo.stanford.edu
date Wed, Jun 4, 2008 at 11:55 AM
subject Re: Solar Turbine project
mailed-by hmsxfer.stanford.edu

hide details 11:55 AM (47 minutes ago)

Reply

Hello Marcin,

On Mon, 2 Jun 2008, Marcin Jakubowski wrote:

Hello Alan,

We are building a solar concentrator electric system, and considering the
Tesla turbine as the engine.

Please see:

http://openfarmtech.org/index.php?title=Solar_Turbine#Existing_Work

Looks like a very worthwhile project!

Do you think that a Tesla turbine will work here? Do you have results that
could be used in our work?

Most of what I have that would support the kind of work you propose is at this time anecdotal. For example, just a few weeks ago I gave a few pointers
to a team of engineering students at Cornell University who, for one of
those "build a machine to climb an incline" type competitions that
engineering schools put on for their students. Using an air-powered
Tesla turbine with a fairly clever worm-gear reduction to get power to
their wheels, those students won the competition with the lightest and
fastest machine by far. And, there are other projects, larger and smaller
that have had success.

I believe a Tesla turbine would work in your project. I will be honest
and say I can not be sure it would be the best choice for your project.
If you are trying for maximum simplicity and reliability, then it could
be a very good and functional choice. If maximum efficiency is your
absolute goal, then it may not be what you are looking for.

At this time I am building a dynomometer testbed for my 6-inch turbine
(I nearly finished the sensing electronics just this past weekend). When
I complete that work and testing over the next month or so I will be
able to say a lot more definitively what the power expectations may be.
That will all go up on my websites as soon as I can, in the limited
time I have, make it happen. I am also working out 3-dimensional flow
modeling which will be a help in reliable design parameter specifications
and turbine optimizations (but, that is not likely to be working until
late this year to early next year).

I'm certain that better than the 25% efficiency mentioned in the link
to the turbine design page you provide can be achieved. With regards
to that, the "seals" shown in the pictures there are basically not
used in most designs these days. Usually the runner is just made a bit
wider than the inlet and that is sufficient to capture the available
power. And, that makes construction even more simple.

Sincerely,
Marcin
http://openfarmtech.org/weblog/