GaryGary
- Date Joined:Jun 12, 2006
- Comments:10
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» Hi dropkick,My website is www.BuildItSolar.com -- it now averages about 7000 visits a …
» Hi, On the original collector, I tried 1, 2 and 3 layers of black screen for the absorb…
» Hi, I don't believe that this collector design will ever get hot enough at stagnation t…
» Hi Dropkick,The flapper valves that stop reverse flow are very very effective. The pre…
» Hi I'm puzzled by your experience with the passive solar collector. I have measured …
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» Hi, I think there are pros and cons to doing the collector vs the window -- this is t…
» Hi,I'm the author of the Mother Earth News article, and just wanted to congratuate robb…
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Feb 11, 2007. 12:22 PMquixote
says:
Hi GaryGary- I'm an elementary teacher in NM, and want to teach my students about energy usage and savings by monitoring natural gas usage, and by building a passive solar panel for my portable building (classroom). Then, see how much we save, using each. Do you know a source for a gas flow meter i could use? Our school doesn't have separate meters. Thanks- quixote
Feb 11, 2007. 1:19 PMGaryGary (author)
says:
Hi,
I'm not personally aware of a gas meter you could use -- two approaches come to mind:
- See if you can get the gas company interested in the project -- maybe they would volunteer a meter and installation.
- If your building has a separate gas furnace, it might be easier just to monitor the furnace on time. The furnace name plate probably has a BTU in or BTU out label -- you could get a fairly good idea of the heat used from this.
Something like this data logger might do it:
http://www.1800loggers.com/solutions/guides/bymeasurement.php5
You would probably want to figure out the heat used per degree-day -- this way your results won't be thrown off by colder or warmer than average weather. Here is an example of how this works:
http://cameronmiller.net/energy-savings/
Let me know if I can be of anymore help.
Best,
Gary
I'm not personally aware of a gas meter you could use -- two approaches come to mind:
- See if you can get the gas company interested in the project -- maybe they would volunteer a meter and installation.
- If your building has a separate gas furnace, it might be easier just to monitor the furnace on time. The furnace name plate probably has a BTU in or BTU out label -- you could get a fairly good idea of the heat used from this.
Something like this data logger might do it:
http://www.1800loggers.com/solutions/guides/bymeasurement.php5
You would probably want to figure out the heat used per degree-day -- this way your results won't be thrown off by colder or warmer than average weather. Here is an example of how this works:
http://cameronmiller.net/energy-savings/
Let me know if I can be of anymore help.
Best,
Gary
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