12-22-2018, 05:44 PM
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#4251 (permalink)
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Master EcoModder
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fans
Quote:
Originally Posted by All Darc
What about fans ?
Some fans also work as cooler when equiped with water mist system, since water while evaporates take heats off. But it only works reasonable in very dry weather
I don't use air conditioned, I use a fan on my side during hot weather.
Why americans are so adicted to air conditioned ?
For cold, people could use clothes for cold weather, insted of warm the home interior up to use light clothes. But I know some countries are so cold in winter that home needs warming system at least in some degree.
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Around here they work up to a point,then with the relative humidity, it creates a heat index value which exceeds what is tolerable to humans. We can have dew points of 78-degrees F.Just sitting can cause exhaustion.
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12-22-2018, 05:45 PM
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#4252 (permalink)
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Master EcoModder
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Quote:
My dad used to make it.He could get the density down to 11-pounds/per cubic foot,versus about 130-pounds/cu- ft for conventional concrete.
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Do you know how he did it? Detergent in the mix or forced air bubbles?
My father took a 5-panel door into a room once and stripped the paint in 1/2 hour. He never told me how he did that.
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12-22-2018, 05:52 PM
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#4253 (permalink)
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Master EcoModder
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cost
Quote:
Originally Posted by oil pan 4
I don't know if they can get much cheaper.
They are already made in China with 0 regard for the people who make them and the environment.
The only way the cost per watt might be able to go down more is if they make them a lot larger than the largest sizes already available.
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I'm not sure about cost,but a university in Toronto,Canada has come up with a durable, 4-junction,laminated,perovskite,low-temp,low-cost,PV,with an independently-certified 30% power conversion efficiency.This would exceed Gallium- arsenide,space-grade, silicon cells at a fraction of the cost.
Something like this might help.
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12-22-2018, 06:11 PM
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#4254 (permalink)
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Master EcoModder
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how
Quote:
Originally Posted by freebeard
Do you know how he did it? Detergent in the mix or forced air bubbles?
My father took a 5-panel door into a room once and stripped the paint in 1/2 hour. He never told me how he did that.
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yes,it was cellular concrete.He used DuPont 'Duponal' surfactant,with a very strong surface tension bond.
The surfactant was diluted in water,then forced through a foam-gun (Valved PVC tube full of stainless steel mesh),under about 150-psi air pressure,and injected into the back of a Ready Mix truckload of 8-sack,sand mix,and mixed in.The bubbles are so strong they survive the torture of the mixing and ram-forced passage through a concrete pump and hose.It's trippy stuff! Hollywood special effects!
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12-22-2018, 06:43 PM
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#4255 (permalink)
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Corporate imperialist
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Quote:
Originally Posted by aerohead
Have you run across breakdowns of actual production costs,versus wholesale/retail pricing for different technologies?
Oil refineries' kWh load per gallon of finished stock is three times their reported total production cost,if figured at retail price points. And that's not saying anything else about their costs.And I'd be paying 12-cents it it weren't for my wind option.
Wind costs me 1-penny difference.Solar might cost me the same,but I'd have to buy a block of 200 kWhs,and I don't use that much a month.
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Strangely the cost breakdown isn't that easy to find. Almost like they don't want people to see how much the true cost is.
Ha, I put almost double that in my leaf.
Paying 12 cents a kwh probably barely covers generation costs.
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1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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12-22-2018, 06:52 PM
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#4256 (permalink)
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Master EcoModder
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true cost
Quote:
Originally Posted by oil pan 4
Strangely the cost breakdown isn't that easy to find. Almost like they don't want people to see how much the true cost is.
Ha, I put almost double that in my leaf.
Paying 12 cents a kwh probably barely covers generation costs.
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In my next life,when I have some spare time I'd like to look into it.
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12-22-2018, 09:42 PM
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#4257 (permalink)
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Did I write this article? :wink: Finally a report that knows the difference between total electricity and total energy. All true I am afraid.
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https://www.heartland.org/news-opini...t-a-brick-wall
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"The dream of supplying Germany with mainly green energy from sunshine and wind turns out to be nothing but a fading illusion. Solar and wind power today covers only 27% of electricity consumption and only 5% of Germany's total energy needs, while impairing reliability and raising electricity prices to among the highest in the world."
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12-22-2018, 11:08 PM
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#4258 (permalink)
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Master EcoModder
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Quote:
It's trippy stuff! Hollywood special effects!
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I'm still trying to make a dent in this life, in the next year. After everyone is over the holidaze I want to talk to this individual that I've identified at the nexus of housing the homeless locally, about panelized building systems.
Get them out of tiny boxes and leave them with bubble-brains.
Sendler Do you recognize this voice speaking for Classairius?
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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12-22-2018, 11:25 PM
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#4259 (permalink)
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Corporate imperialist
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Quote:
Originally Posted by sendler
"The dream of supplying Germany with mainly green energy from sunshine and wind turns out to be nothing but a fading illusion. Solar and wind power today covers only 27% of electricity consumption and only 5% of Germany's total energy needs, while impairing reliability and raising electricity prices to among the highest in the world."
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I only have an associates in applied science for wind and solar power generation and I could have told them that.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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12-22-2018, 11:38 PM
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#4260 (permalink)
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Master EcoModder
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Quote:
Originally Posted by freebeard
Sendler Do you recognize this voice speaking for Classairius?
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Who is it?
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