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Re: Possible Tesla list survey


  JohnF -

  I ran into the problem of analyzing data from coilers several years ago
when I was developing the JHCTES computer program. You are correct in that
this data can be very misleading. I made scatter diagrams of the data and
then fit a curve to them to come up with equations to work with. Of course,
the equations are only as good as the data. However, the alternative is to
do nothing and end up with nothing. The equations and curves do provide
some insights on how a TC operates. I don't think we ought to do nothing.

  John Couture

---------------------------  


At 06:02 PM 9/21/98 -0600, you wrote:
>Original Poster: FutureT-at-aol-dot-com 
>
>In a message dated 98-09-20 19:51:23 EDT, you write:
>
><< How about it?  Does anyone have a list of coil surveys, and know 
>> down which black hole all of that data went?
> -- 
> 
>> -GL
>
>Greg, all, 
>
>Thanks Greg for the coalescence data, etc. 
>
>I think there's a weakness in coil surveys.  Suppose for instance, a coil
>of good performance is built, but some flaw exists; for instance a poor
>quenching gap.  This fact might not be apparent from the design specs,
>yet it will give a false impression about the coil's capabilities.  Comparing
>different coils is difficult because of the innumerable variables between
>coils.  I don't think any earth-shattering insights have been gleaned
>from the surveys that have been done to date.  If this is true, I don't
>think that further surveys will help.  However I applaude the efforts and
>intentions of the surveyors.  I agree that intuitively, surveys seem useful,
>but results have been disappointing.  Can important insights be
>extracted from survey results?  Perhaps it is possible, but we have not
>yet succeeded. It is difficult to assess the effects of changes to a 
>particular coil, all the more difficult to compare across platforms. 
>Maybe more insights can be gleaned from existing surveys?
>
>I like your idea of a survey of surveys, and someday perhaps, a survey
>of survey of surveys.  Maybe someone will write a paper; "The Uses and
>Limitations Of Coil Surveys".  Or perhaps, "Guidelines for Coil Surveys",
>or "Coil Surveys...What They Tell Us".
>
>John Freau
>
>
>