| Author |
Re: Grey water heat exchanger GFX
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| BobK207 2006-04-13, 12:21 am |
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Phil Scott wrote:[color=darkred]
> --
> Phil Scott
> Ideas are bullet proof.
> "BobK207" <rkazanjy@gmail.com> wrote in message
> news:1144804186.805383.219920@z34g2000cwc.googlegroups.com...
>
> If those are easily cleanable heat exchangers it would be
> workable, if they are not easily cleaned (mechanically with a
> rod or scraping) grey water will end up fouling the
> thing..that would not be a good deal.
>
> Phil Scott
>
Having struggle through the info on GFX website, it looks like fouling
(at least from what they say) is not a problem due to the very high
flow velocity.
As opposed to a "flooded" heat exchanger where flow velocity is much
lower
cheers
Bob
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| Robert Gammon 2006-04-13, 9:21 am |
| BobK207 wrote:
> Phil Scott wrote:
>
>
> Having struggle through the info on GFX website, it looks like fouling
> (at least from what they say) is not a problem due to the very high
> flow velocity.
>
>
> As opposed to a "flooded" heat exchanger where flow velocity is much
> lower
>
> cheers
> Bob
>
>
I concur, with a heat exchanger that never floods, the water velocity
down the walls is VERY VERY rapid. Solids will tend to bump the sides
infrequently as they fall thru the 3 to 6 foot length. GFX has
documented installations that include blackwater processing that have
been in continuous service for 5-9 years with NO clogging, no cleaning
needed. Since the installation method uses clamps, it would then be
easy to open one up after a few years to see what gunk is caked to the
inside walls.
But with the water velocity quoted, even a small about of residue that
sticks when a solid bumps the wall will be quickly washed away by the
rapidly flowing water
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| nicksanspam@ece.villanova.edu 2006-04-13, 10:21 am |
| Robert Gammon <rgammon51@yahoo.com> wrote:
>... with a heat exchanger that never floods, the water velocity
>down the walls is VERY VERY rapid.
And the efficiency is fairly low, especially with a bathtub.
Nick
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| Robert Gammon 2006-04-13, 1:21 pm |
| nicksanspam@ece.villanova.edu wrote:
> Robert Gammon <rgammon51@yahoo.com> wrote:
>
>
>
> And the efficiency is fairly low, especially with a bathtub.
>
And your heat exchanger does nothing to correct that either as BOTH
require flowing warm waste water to do their work
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| nicksanspam@ece.villanova.edu 2006-04-13, 5:21 pm |
| Robert Gammon <rgammon51@yahoo.com> wrote:
>
>And your heat exchanger does nothing to correct that either as BOTH
>require flowing warm waste water to do their work
Wrong.
Nick
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