Forum: Solar Heating
03-30-12, 11:54 AM
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Replies: 6
Views: 5,082
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Forum: Solar Heating
03-24-12, 11:57 PM
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Replies: 6
Views: 5,082
I think that because the NRC data was really...
I think that because the NRC data was really meant for photovoltaics, when they say 'insolation' they don't mean the same thing as what someone working on passive solar heating means. Maybe they...
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Forum: Solar Heating
03-24-12, 10:47 PM
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Replies: 6
Views: 5,082
Yeah, i got their data for Hamilton and ran the...
Yeah, i got their data for Hamilton and ran the numbers with it, and the results just seemed too good to be true. I checked the data to some degree with NASA, i'm still looking to cross-reference it...
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Forum: Solar Heating
03-24-12, 04:58 PM
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Replies: 6
Views: 5,082
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Forum: Solar Heating
03-24-12, 04:34 PM
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Replies: 6
Views: 5,082
Insulation at different latitudes
As i have been struggling to calculate the amount of sun to expect at a proposed building location at about 43 deg N, finally i made a chart. I still have my reservations about its absolute accuracy,...
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Forum: Solar Heating
03-22-12, 12:02 PM
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Replies: 16
Views: 18,323
Hamilton is just slightly south of Toronto, on...
Hamilton is just slightly south of Toronto, on the west end of Lake Ontario. The Midwestern United States is a fair bit colder on average, but it also gets a lot more sun. Depending on your location...
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Forum: Solar Heating
03-21-12, 06:11 PM
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Replies: 16
Views: 18,323
MN Renovator
Thanks for hanging in there...
I...
MN Renovator
Thanks for hanging in there...
I see the process now. I maybe shouldn't have been responding so late at night. I got balled up with how the units cancel out and it seemed to me i was...
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Forum: Solar Heating
03-21-12, 02:24 AM
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Replies: 16
Views: 18,323
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Forum: Solar Heating
03-21-12, 01:16 AM
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Replies: 16
Views: 18,323
Robert -
Power is a rate, but watts can also be...
Robert -
Power is a rate, but watts can also be a quantity. A machine might use up 100 watts in one hour, or in one minute. Knowing how many watts are involved doesn't tell you how much time it took...
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Forum: Solar Heating
03-20-12, 06:34 PM
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Replies: 16
Views: 18,323
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Forum: Solar Heating
03-20-12, 06:15 PM
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Replies: 16
Views: 18,323
(If anyone is curious what the thermal mass is,...
(If anyone is curious what the thermal mass is, it's mud. Courtesy of an article from Mother Earth in the 70's, which came up on one of those kick-*** Google Books results. I'll see if i can find the...
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Forum: Solar Heating
03-20-12, 06:10 PM
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Replies: 16
Views: 18,323
The house loses a total of 21,359 kW over the...
The house loses a total of 21,359 kW over the course of the entire winter. I took the total r values of all the surfaces, over their whole area, at the given temperature difference between exterior...
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Forum: Solar Heating
03-20-12, 04:37 PM
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Replies: 16
Views: 18,323
I've gotten some conversions like this, but my...
I've gotten some conversions like this, but my confusion is about joules and watts in this context.
Here's the thing - the thermal mass as currently designed would have to shed 429,000 kJ to lower...
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Forum: Solar Heating
03-20-12, 03:54 PM
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Replies: 16
Views: 18,323
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