Re: Max power from solar cells

From: Earl Colby Pottinger (earlcp_at_idirect.com)
Date: 06/15/04 

Date: Tue, 15 Jun 2004 10:51:37 -0500

Peter Fairbrother <zenadsl6186@zen.co.uk> :

> Such filters exist, and could be placed on cells. They could easily be made
> to reflect light of wavelengths which are not well converted by the cells.
I
> believe this may already happen in some space apps?
>
> This type of filter is the most typical use of the technology. They are
> beginning to be used as coloured gels in theatrical spotlights because they
> are heatproof (compared to the usual gels and glass filters).
>
> These filters either pass or reflect light, depending on wavelength, they
do
> not absorb it. The materials they are made from are water clear, and
> uncoloured.
>
> A filter can also be made to reflect a narrow band of light, rather than
> pass it. If used as a large mirror concentrator, this could produce
> near-monochromatic light at high intensity, suitable for high efficiency
and
> high-power cells, from sunlight.

My mistake, I was only thinking of a mirror directing sunlight to the cells
and thus thinking that putting the filters on the cells removes the need of a
mirror. But you are also thinking in terms of concentrating the flux to get
more power per cell - my mistake missing that.

               Earl Colby Pottinger 

-- 
-- 
I make public email sent to me!  Hydrogen Peroxide Rockets, OpenBeos,
SerialTransfer 3.0, RAMDISK, BoatBuilding, DIY TabletPC.  What happened to
the time? http://webhome.idirect.com/~earlcp

Relevant Pages

  • Re: Excel VBA autofilter problem
    ... Working with dates in filters in VBA can be a challenge. ... > Dim mydate1 As Date ... > three cells above, these cells are validated cells which allow the user ... > correct records are displayed!!! ...
    (microsoft.public.excel.misc)
  • Re: Using the "Count" function with filters?
    ... So you want to do the equivalent of =countifbut with filtered data? ... result changing when applying filters to other columns in the spreadsheet. ... I was able to get the total number of cells that contains, ... "Dave Peterson" wrote: ...
    (microsoft.public.excel.worksheet.functions)
  • Re: Preventing a Filter from affecting cell shading
    ... Select all the cells on the worksheet ... Choose Format>Conditional Formatting ... but I'm also using filters. ... When I filter results, the cell shading is also filtered out, so instead of white line/gray line over and over I get blocks of colour which defeat the purpose of the shading. ...
    (microsoft.public.excel.misc)
  • Re: Max power from solar cells
    ... Such filters exist, and could be placed on cells. ... beginning to be used as coloured gels in theatrical spotlights because they ... near-monochromatic light at high intensity, ...
    (sci.space.policy)
  • Re: Circular Reference
    ... make a mirror of *two* sheets and both way updatable. ... > links between different cells in different worksheets. ... > sole entry worksheet or allow entry in *neither* but instead use other ...
    (microsoft.public.excel.worksheet.functions)