Home Page link

Conversion to gas? ? ?

Home| Search | About
Login Password
Register Now! Lost Password?

Home Repair - - If it ain't broken, don't fix it. Otherwise look here. 

Page 5 of 9       < 1 2 3 > last >> Bookmark this page:  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
Conversion to gas? ? ? Ray 05-08-2008
If you were  Registered and logged in, you could reply and use other advanced thread options
Posted by Edwin Pawlowski on May 10, 2008, 1:20 pm

>
> You're thinking of the wrong technology. You don't use solar PV or solar
> hot water thermal, you use a concentrating steam boiler setup, like used
> at a few CA commercial solar utility generating stations. An array of
> tracking reflectors concentrating the energy on a single central
> collector-boiler. For your application there are no transmission and
> conversion losses since you directly generate the steam you need above
> the plant that is using it. You do not bother trying to store any of the
> energy for night use, you simply ramp the oil / gas fired boilers back
> up for the evening. 30% energy savings using existing roof space. Think
> tax credits too...

And the cost of the equipment is????



Posted by Pete C. on May 10, 2008, 3:42 pm

Edwin Pawlowski wrote:
>
> >
> > You're thinking of the wrong technology. You don't use solar PV or solar
> > hot water thermal, you use a concentrating steam boiler setup, like used
> > at a few CA commercial solar utility generating stations. An array of
> > tracking reflectors concentrating the energy on a single central
> > collector-boiler. For your application there are no transmission and
> > conversion losses since you directly generate the steam you need above
> > the plant that is using it. You do not bother trying to store any of the
> > energy for night use, you simply ramp the oil / gas fired boilers back
> > up for the evening. 30% energy savings using existing roof space. Think
> > tax credits too...
>
> And the cost of the equipment is????

Substantial, but it's a long term "green" investment that would probably
generate revenue from selling emissions credits.

Posted by Edwin Pawlowski on May 10, 2008, 6:55 pm

>>
>> And the cost of the equipment is????
>
> Substantial, but it's a long term "green" investment that would probably
> generate revenue from selling emissions credits.

What credits? It would not cover the cost or needs of our operation let
alone allow for selling credits. Many of our products save energy yet we
get no credit for anything by doing that either. That brings up another
point. Starting later this year (EPA regulations) we must use our boilers
to oxidize what would otherwise be a VOC emission so we could not go 100%
solar even if it was practical.

That brings up another government mandated folly. We are installing
$400,000 in equipment to do this. The EPA says the payback is in 10 years
if we run a full capacity 365/24. Fact is, we only need this particular
equipment days 6 hours a day to support the rest of the plant. But they
still base their figures on 365 because we "could" run 8760 hours a year
even thought they'd never issue a permit to do so or we could ever need it.
.



Posted by Pete C. on May 10, 2008, 7:58 pm

Edwin Pawlowski wrote:
>
> >>
> >> And the cost of the equipment is????
> >
> > Substantial, but it's a long term "green" investment that would probably
> > generate revenue from selling emissions credits.
>
> What credits? It would not cover the cost or needs of our operation let
> alone allow for selling credits. Many of our products save energy yet we
> get no credit for anything by doing that either. That brings up another
> point. Starting later this year (EPA regulations) we must use our boilers
> to oxidize what would otherwise be a VOC emission so we could not go 100%
> solar even if it was practical.
>
> That brings up another government mandated folly. We are installing
> $400,000 in equipment to do this. The EPA says the payback is in 10 years
> if we run a full capacity 365/24. Fact is, we only need this particular
> equipment days 6 hours a day to support the rest of the plant. But they
> still base their figures on 365 because we "could" run 8760 hours a year
> even thought they'd never issue a permit to do so or we could ever need it.
> .

That 6hr/day could align nicely with the 2nd/3rd shift when you'd have
to run the fossil fuel boilers anyway. You'd still be cutting some 33%
of both your fuel consumption and your emissions. Again, you are the
only one saying 100% solar, I have consistently said ~33% solar. What
would 33% of your annual oil/gas consumption amount to in $? Probably a
hefty chunk of change towards building the daytime solar boiler.

Posted by Edwin Pawlowski on May 10, 2008, 10:52 pm

>
> That 6hr/day could align nicely with the 2nd/3rd shift when you'd have
> to run the fossil fuel boilers anyway. You'd still be cutting some 33%
> of both your fuel consumption and your emissions. Again, you are the
> only one saying 100% solar, I have consistently said ~33% solar. What
> would 33% of your annual oil/gas consumption amount to in $? Probably a
> hefty chunk of change towards building the daytime solar boiler.

We spent about 200,000 last year so the savings potential is $66,000. That
is assuming you get 33%. I'd guess we'd be closer to 20% considering
weather in New England. Sure, that would be a good savings, but what is the
equipment cost? You seem to have missed that question. Where does it get
installed and what has to be done to the infrastructure for it? What is the
heat potential?

Seems to me, if it was that simple and cost effective power plants around
the world would be using it.

Now if I have room for molten salt tanks, this may work
http://gizmodo.com/362271/280+megawatt-solar-boiler-uses-magnifying+glass-bug+killer-technique







Page 5 of 9       < 1 2 3 > last >>
Similar ThreadsPosted
120 to 12v conversion February 10, 2008, 12:43 am
Tub to shower conversion September 30, 2006, 10:27 am
Sell HID Conversion Kit February 25, 2008, 1:28 am
Oil -> gas burner conversion March 21, 2008, 3:22 pm
need insulation help w/ garage conversion ... October 31, 2005, 5:33 pm
Steam Boiler conversion November 6, 2005, 7:28 pm
Swimming pool conversion June 9, 2006, 7:39 pm
Oil to Natural Gas Conversion Costs August 2, 2006, 4:23 pm
Bathtub conversion into a shower September 10, 2006, 7:02 pm
shop vac hose conversion January 8, 2007, 10:20 am

Contact Us | Privacy Policy

XML SitemapXML Sitemap