Forum: Conservation
12-17-12, 06:36 AM
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Replies: 575
Views: 1,155,439
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Forum: Conservation
12-16-12, 12:53 PM
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Replies: 575
Views: 1,155,439
For comparison, those mixed flow second hand...
For comparison, those mixed flow second hand DV6224 fans which I mentioned (available at 25 euro or so each - I saw a set of four fans on US eBay for $30 I think), do the following at max speed:
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Forum: Conservation
12-15-12, 02:48 PM
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Replies: 575
Views: 1,155,439
Any idea what sort of COP the de-humidifiers...
Any idea what sort of COP the de-humidifiers achieve? Looking at this table:
http://ecorenovator.org/forum/conservation/891-diy-ventilation-heat-exchanger-14.html
The efficiency of the best...
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Forum: Conservation
12-15-12, 01:19 PM
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Replies: 575
Views: 1,155,439
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Forum: Conservation
12-14-12, 02:14 PM
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Replies: 575
Views: 1,155,439
Most speed controllable fans seem to go down to...
Most speed controllable fans seem to go down to 10%. If you're shopping for cheap EC (electronically commutated == high efficiency, long life) ebm papst fans, there seem to be various available some...
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Forum: Conservation
12-14-12, 12:21 PM
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Replies: 575
Views: 1,155,439
They will a bit, but they'll also increase the...
They will a bit, but they'll also increase the cost (for a given volume of exchanger) and embodied energy. I believe that the limiting factor is the conductivity of the air, so an important thing is...
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Forum: Conservation
12-14-12, 11:58 AM
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Replies: 575
Views: 1,155,439
So, as far as I can see, this problem can be...
So, as far as I can see, this problem can be split broadly into two different areas:
1. Heat Exchanger (plus housing, condensate drainage, duct ports etc.).
2. Fans
3. Control system (fan...
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Forum: Conservation
12-14-12, 10:24 AM
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Replies: 575
Views: 1,155,439
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