Hello Robin
To store heat economically they can not use water heated by the
PV cells, bcs these cells have to be as cool as possible to work
efficiently.
By concentrating the rest of the direct sunlight on a thermal absorber
it is possible to get much higher temperatures to store heat effectively,
while keeping the
solar cells at a much lower temperature
Peter v Noorden
-----Oorspronkelijk bericht-----
From: mix...@bigpond.com
Sent: Wednesday, December 30, 2015 10:16 PM
To: vortex-l@eskimo.com
Subject: Re: [Vo]:Crescent Dunes Solar Energy Project
In reply to Jones Beene's message of Wed, 30 Dec 2015 10:03:42 -0800:
Hi,
[snip]
Arizona State U is developing a hybrid solar energy system that modifies
the single axis CSP “trough” design, converting the mirrored trough with
solar cells that collect direct rays while reflecting the rest of the
direct sunlight to a thermal absorber to generate heat.
I don't see why they don't just attach the back of the solar cells to the
wall
of a cooling tube. This kills two birds with one stone. Water is heated, and
the
cells are actively cooled allowing use a of a higher concentration of light.
Regards,
Robin van Spaandonk
http://rvanspaa.freehostia.com/project.html
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