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 Posted: Sat Sep 26, 2009 3:42 pm |
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Guest
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Because the fuel is free the transport costs will be close to
zero
video on
http://news.bbc.co.uk/1/hi/technology/8271696.stm
group of French engineering students have built a solar-powered
airship which they hope to fly across the English channel later this
year.
The blimp called Nephelios recently had its first test flight.
Team member Arnaud Vaillant showed the BBC around the airship and
explained how it works. |
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| Uncle Al... |
| Posted: Sat Sep 26, 2009 6:22 pm |
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habshi at (no spam) anony.net wrote:
[quote:4244d16ad0]Because the fuel is free the transport costs will be close to
zero
[snip crap][/quote:4244d16ad0]
And the infrastructure is free too, and its maintenance and MTBF.
[quote:4244d16ad0]group of French engineering students have built a solar-powered
airship which they hope to fly across the English channel later this
year.
[snip rest of crap][/quote:4244d16ad0]
One eagerly anticipates solar-powered body bags.
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/lajos.htm#a2 |
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| Posted: Sat Sep 26, 2009 6:30 pm |
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In sci.physics habshi at (no spam) anony.net wrote:
[quote:25b72a4b14]Because the fuel is free the transport costs will be close to
zero
[/quote:25b72a4b14]
Except helium leaks through everything and it isn't cheap.
[quote:25b72a4b14]video on
http://news.bbc.co.uk/1/hi/technology/8271696.stm
group of French engineering students have built a solar-powered
airship which they hope to fly across the English channel later this
year.
[/quote:25b72a4b14]
They had better prey for calm weather...
--
Jim Pennino
Remove .spam.sux to reply. |
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| Autymn D. C.... |
| Posted: Sat Oct 03, 2009 11:57 pm |
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On Sep 26, 2:42 pm, hab... at (no spam) anony.net wrote:
[quote:049281b063] Because the fuel is free the transport costs will be close to
zero
video on
http://news.bbc.co.uk/1/hi/technology/8271696.stm
group of French engineering students have built a solar-powered
airship which they hope to fly across the English channel later this
year.
The blimp called Nephelios recently had its first test flight.
Team member Arnaud Vaillant showed the BBC around the airship and
explained how it works.
[/quote:049281b063]
If they don't take up the jet stream, it'll be no fun. |
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| Posted: Sun Oct 25, 2009 6:08 am |
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Guest
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What about a counter current mechanism to heat water with solar
power. In India most people have huge areas of flat roofs they dont
use in the summer except sometimes at night to sleep on.
If water pipes were laid at a slight angle , as the bottom gets
heated the water will rise in the pipes and get even more heated until
it becomes steam at the top and generates electricity or is used for
hot water baths.
Hot water could even be used to grow algae and foods. |
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| Posted: Sun Oct 25, 2009 11:40 am |
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In sci.physics habshi at (no spam) anony.net wrote:
[quote]What about a counter current mechanism to heat water with solar
power. In India most people have huge areas of flat roofs they dont
use in the summer except sometimes at night to sleep on.
If water pipes were laid at a slight angle , as the bottom gets
heated the water will rise in the pipes and get even more heated until
it becomes steam at the top and generates electricity or is used for
hot water baths.
[/quote]
That is called a solar water heater and is common in many places.
http://www.solardirect.com/swh/swh.htm
It takes a big pile of mirrors to get enough energy to make steam and
solar thermal electric generators usually use something other than
water as a working fluid.
http://en.wikipedia.org/wiki/Solar_Two
[quote]Hot water could even be used to grow algae and foods.
[/quote]
Hot water is used to COOK algae and foods.
You are an idiot.
--
Jim Pennino
Remove .spam.sux to reply. |
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| Posted: Sat Nov 14, 2009 12:48 pm |
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This should be quite promising in hot countries where a chimney can
take hot air from the house and have one of these installed at the top
to give unlimited hot water
excerpt
http://www.heatingoil.com/blog/invisible-and-affordable-solar-water-heating-for-your-home1113/
Anyone who doubts the persistence of good old-fashioned American
innovation is advised to consider the Greenbuild International
Conference and Expo, an annual convention showcasing the newest and
most ingenious green tech products made by American hands. This year’s
expo, held in the tremendous Phoenix Convention Center, comprised over
1,800 exhibit booths, making it the largest convention in Greenbuild
history.
According to Treehugger.com, which covered the event, of particular
interest this year was the Greenward Ridge Vent, a nifty piece of
solar-heating equipment that can be fitted to any standard shingled
roof. The Ridge Vent collects solar energy and uses it to heat water;
but it is the thrift with which the vent performs its task that makes
it remarkable. The Ridge Vent collects solar heat trapped in a home’s
attic; the heat flows through the Ridge Vent around PEX plastic tubes,
heating an ethylene-glycol-and-water mixture that is then pumped into
a heat exchanger, preheating the home’s tap and fixture water even
before it gets to the water heater. In other words, the vent
effectively takes wasted energy and puts it to good use: a concept
both simple and ingenious.
Close-up of demonstration Greenward Ridge Vent. (image:
treehugger.com)
It is the Ridge Vent’s innocuous design that makes it so appealing.
Unlike the typical solar collectors, which can make your home look
like a lunar space station, the Ridge Vent is barely noticeable.
That’s not to say you won’t notice its effect. According to Greenward,
“With an average attic temperature of 120 degrees F., the Greenward
Ridge Vent can reduce your energy consumption by just over 12 million
BTUs a year and reduce your CO2 emissions by just over 1,400 pounds
annually.” The fact that heating water by solar energy costs one tenth
as much as heating it by electricity means that you stand to save
considerably on your electric or gas bill |
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| Posted: Sat Nov 14, 2009 1:15 pm |
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In sci.physics habshi at (no spam) anony.net wrote:
[quote]This should be quite promising in hot countries where a chimney can
take hot air from the house and have one of these installed at the top
to give unlimited hot water
[/quote]
The article has nothing to do with chimneys.
You are a gibbering idiot.
--
Jim Pennino
Remove .spam.sux to reply. |
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| Posted: Thu Nov 19, 2009 6:05 pm |
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| Posted: Thu Nov 19, 2009 6:10 pm |
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| Posted: Thu Nov 19, 2009 7:07 pm |
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In sci.physics habshi at (no spam) anony.net wrote:
[quote]Nano solar cuts energy payback in solar to just one month!!
http://www.youtube.com/watch?v=4riNlqZHCTQ
[/quote]
Whoopie; the installation cost payback is still decades.
You are still an idiot.
--
Jim Pennino
Remove .spam.sux to reply. |
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| Posted: Fri Nov 20, 2009 3:25 pm |
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[quote]
Whoopie; the installation cost payback is still decades.[/quote]
Evidence? |
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| Posted: Fri Nov 20, 2009 4:19 pm |
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Love these blue tiles
photo on
http://news.bbc.co.uk/1/hi/programmes/click_online/8370642.stm
Consumers are also increasingly exploiting the sun's energy in the
home.
Panel power
There has been a steady growth in small-scale electricity production
at home in recent years. In 2008 there was a considerable jump - the
number of people looking to generate their own electricity doubled in
just 12 months.
Traditionally, homes have harnessed power from the sun through
conventional solar panels, but an American company has developed what
it hopes is the next generation of panel power.
SRS Energy has created "sole power" tiles, which are coated with
thin-film flexible photovoltaic cells. The roof tiles are a dark blue
colour to maximise the absorption of sunlight, and will be available
from spring 2010.
The tiles are |
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| Posted: Fri Nov 20, 2009 4:51 pm |
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In sci.physics habshi at (no spam) anony.net wrote:
[quote]
Whoopie; the installation cost payback is still decades.
Evidence?
[/quote]
"Energy cost" has little to nothing to do with installation cost.
Idiot.
--
Jim Pennino
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| Marvin the Martian... |
| Posted: Sun Nov 22, 2009 2:39 pm |
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On Fri, 20 Nov 2009 00:07:03 +0000, jimp wrote:
[quote]In sci.physics habshi at (no spam) anony.net wrote:
Nano solar cuts energy payback in solar to just one month!!
http://www.youtube.com/watch?v=4riNlqZHCTQ
Whoopie; the installation cost payback is still decades.
[/quote]
True enough.
[quote]You are still an idiot.
[/quote]
Umm. Depends.
If he believes this b.S., yes.
If he is collecting investment money from idiots he maybe unethical, but
idiots and their money are made for the picking and getting idiots to
throw money at you isn't idiotic at all. |
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