Get our free book (in Spanish or English) on rainwater now - To Catch the Rain.

Talk:Zaragoza Solar Hot Water System

From Appropedia
Jump to: navigation, search

Collector fluid and water[edit]

I was wondering why the system uses "solar collector fluid" and then passes the heat through a heat exchanger to the water. It would presumably be more efficient to heat the water directly (and I had assumed that standard solar hot water systems did this). Could either this article or Category:Solar hot water be made to explain this? Thanks --Singkong2005 (now known as Chriswaterguy) talk 01:46, 7 September 2006 (PDT)

Thanks. Our porject team had meant to discuss this aspect of the 2005 team's design but had forgotten. I added several sentences discussing the solar collector fluid (antifreeze). Incidentally, for the Hotel Perote Solar Pool Heating System we did not use any solar collector fluid, but with this installation we had the advantage of using a pump instead of depending upon a thermosiphon. --Aaron Antrim 09:39, 7 September 2006 (PDT)
Great, thanks. Now another question - I just noticed the reference to Intermediary heat exchange liquid. I had a look at Wikipedia:Heat exchanger#Types of heat exchangers but couldn't see why this would be used in this case. Sorry if I'm being a bit slow on the uptake... --Singkong2005 (now known as Chriswaterguy) talk 17:45, 7 September 2006 (PDT)
Thanks again, for catching this. I have now explained the intermediary heat exchange fluid on the article page.--Aaron 19:08, 7 September 2006 (PDT)