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Coolest Car AC Ever!...

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Bolaleman...
Posted: Tue Sep 22, 2009 7:05 am
Guest
By accident I found this photo of a self-made air condition system.
"Coolest" car AC I've ever seen :-)

http://thereifixedit.com/2009/07/02/epic-kludge-photo-ahhh-air-conditioning/

Cheers,
Bolaleman
www.2ajobguide.com
 
PotterFan...
Posted: Thu Sep 24, 2009 9:47 am
Guest
On Sep 22, 1:05 pm, Bolaleman <hull... at (no spam) hotmail.com> wrote:
[quote:c4bd835007]By accident I found this photo of a self-made air condition system.
"Coolest" car AC I've ever seen :-)

http://thereifixedit.com/2009/07/02/epic-kludge-photo-ahhh-air-condit...

Cheers,
Bolalemanwww.2ajobguide.com
[/quote:c4bd835007]
LOL, thanks for posting!
 
hhc314...
Posted: Thu Sep 24, 2009 10:13 am
Guest
On Sep 24, 12:47 pm, PotterFan <hull... at (no spam) web.de> wrote:
[quote:83ebb39c48]On Sep 22, 1:05 pm, Bolaleman <hull... at (no spam) hotmail.com> wrote:

By accident I found this photo of a self-made air condition system.
"Coolest" car AC I've ever seen :-)

http://thereifixedit.com/2009/07/02/epic-kludge-photo-ahhh-air-condit...

Cheers,
Bolalemanwww.2ajobguide.com

LOL, thanks for posting!
[/quote:83ebb39c48]
ROFL, nice! Thanks for posting.

"Newsie" will go ape on seeing this!

Harry C.

p.s., This is not as far fetched as at first it may appear. This is
conceptually the same setup as is used on luxury yachts and even
larger sailboats.
 
Don Lancaster...
Posted: Fri Sep 25, 2009 2:10 pm
Guest
hhc314 wrote:
[quote:7f50c90b31]On Sep 24, 12:47 pm, PotterFan <hull... at (no spam) web.de> wrote:
On Sep 22, 1:05 pm, Bolaleman <hull... at (no spam) hotmail.com> wrote:

By accident I found this photo of a self-made air condition system.
"Coolest" car AC I've ever seen Smile
http://thereifixedit.com/2009/07/02/epic-kludge-photo-ahhh-air-condit...
Cheers,
Bolalemanwww.2ajobguide.com
LOL, thanks for posting!

ROFL, nice! Thanks for posting.

"Newsie" will go ape on seeing this!

Harry C.

p.s., This is not as far fetched as at first it may appear. This is
conceptually the same setup as is used on luxury yachts and even
larger sailboats.

[/quote:7f50c90b31]

One of the neatest thing about liquid nitrogen powered cars is that the
A/C is trivial.

Sadly, the energy density does not remotely approach lead acid.

http://www.tinaja.com/h2gas01.asp


--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email: don at (no spam) tinaja.com

Please visit my GURU's LAIR web site at http://www.tinaja.com
 
Bolaleman...
Posted: Mon Sep 28, 2009 3:34 am
Guest
On Sep 25, 4:10 pm, Don Lancaster <d... at (no spam) tinaja.com> wrote:
[quote:d73ec8de4e]hhc314 wrote:
On Sep 24, 12:47 pm, PotterFan <hull... at (no spam) web.de> wrote:
On Sep 22, 1:05 pm, Bolaleman <hull... at (no spam) hotmail.com> wrote:

By accident I found this photo of a self-made air condition system.
"Coolest" car AC I've ever seen Smile
http://thereifixedit.com/2009/07/02/epic-kludge-photo-ahhh-air-condit....
Cheers,
Bolalemanwww.2ajobguide.com
LOL, thanks for posting!

ROFL, nice!  Thanks for posting.

"Newsie" will go ape on seeing this!

Harry C.

p.s.,  This is not as far fetched as at first it may appear.  This is
conceptually the same setup as is used on luxury yachts and even
larger sailboats.

One of the neatest thing about liquid nitrogen powered cars is that the
A/C is trivial.

[/quote:d73ec8de4e]
Liquid NITROGEN??? Is this the new alternative to the compressed air
cars?

[quote:d73ec8de4e]Sadly, the energy density does not remotely approach lead acid.

http://www.tinaja.com/h2gas01.asp

--
Many thanks,

Don Lancaster                          voice phone: (928)428-4073
Synergetics   3860 West First Street   Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xml  email: d... at (no spam) tinaja.com

Please visit my GURU's LAIR web site athttp://www.tinaja.com- Hide quoted text -

- Show quoted text -[/quote:d73ec8de4e]
 
Don Lancaster...
Posted: Mon Sep 28, 2009 11:14 am
Guest
Bolaleman wrote:
[quote:159986efc5]On Sep 25, 4:10 pm, Don Lancaster <d... at (no spam) tinaja.com> wrote:
hhc314 wrote:
On Sep 24, 12:47 pm, PotterFan <hull... at (no spam) web.de> wrote:
On Sep 22, 1:05 pm, Bolaleman <hull... at (no spam) hotmail.com> wrote:
By accident I found this photo of a self-made air condition system.
"Coolest" car AC I've ever seen Smile
http://thereifixedit.com/2009/07/02/epic-kludge-photo-ahhh-air-condit...
Cheers,
Bolalemanwww.2ajobguide.com
LOL, thanks for posting!
ROFL, nice! Thanks for posting.
"Newsie" will go ape on seeing this!
Harry C.
p.s., This is not as far fetched as at first it may appear. This is
conceptually the same setup as is used on luxury yachts and even
larger sailboats.
One of the neatest thing about liquid nitrogen powered cars is that the
A/C is trivial.


Liquid NITROGEN??? Is this the new alternative to the compressed air
cars?

Sadly, the energy density does not remotely approach lead acid.

http://www.tinaja.com/h2gas01.asp

--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xml email: d... at (no spam) tinaja.com

Please visit my GURU's LAIR web site athttp://www.tinaja.com- Hide quoted text -

- Show quoted text -

[/quote:159986efc5]
Liquid nitrogen cars are a gee whiz student project.
The energy density sucks.

Not nearly as bad as compressed air, though.

Links at http://www.tinaja.com/h2gas01.asp



--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email: don at (no spam) tinaja.com

Please visit my GURU's LAIR web site at http://www.tinaja.com
 
Bolaleman...
Posted: Tue Sep 29, 2009 9:13 am
Guest
On Sep 28, 1:14 pm, Don Lancaster <d... at (no spam) tinaja.com> wrote:
[quote:a0850d027c]Bolaleman wrote:
On Sep 25, 4:10 pm, Don Lancaster <d... at (no spam) tinaja.com> wrote:
hhc314 wrote:
On Sep 24, 12:47 pm, PotterFan <hull... at (no spam) web.de> wrote:
On Sep 22, 1:05 pm, Bolaleman <hull... at (no spam) hotmail.com> wrote:
By accident I found this photo of a self-made air condition system.
"Coolest" car AC I've ever seen Smile
http://thereifixedit.com/2009/07/02/epic-kludge-photo-ahhh-air-condit...
Cheers,
Bolalemanwww.2ajobguide.com
LOL, thanks for posting!
ROFL, nice!  Thanks for posting.
"Newsie" will go ape on seeing this!
Harry C.
p.s.,  This is not as far fetched as at first it may appear.  This is
conceptually the same setup as is used on luxury yachts and even
larger sailboats.
One of the neatest thing about liquid nitrogen powered cars is that the
A/C is trivial.

Liquid NITROGEN??? Is this the new alternative to the compressed air
cars?

Sadly, the energy density does not remotely approach lead acid.

http://www.tinaja.com/h2gas01.asp

--
Many thanks,

Don Lancaster                          voice phone: (928)428-4073
Synergetics   3860 West First Street   Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xml email: d... at (no spam) tinaja.com

Please visit my GURU's LAIR web site athttp://www.tinaja.com-Hide quoted text -

- Show quoted text -

Liquid nitrogen cars are a gee whiz student project.
The energy density sucks.

Not nearly as bad as compressed air, though.

Links athttp://www.tinaja.com/h2gas01.asp

--
Many thanks,

Don Lancaster                          voice phone: (928)428-4073
Synergetics   3860 West First Street   Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xml  email: d... at (no spam) tinaja.com

Please visit my GURU's LAIR web site athttp://www.tinaja.com- Hide quoted text -

- Show quoted text -
[/quote:a0850d027c]
Sounds interesting but I guess the energy balance is terribly bad in
these cryocars as it costs a huge amount of energy (electricity) to
cool air down to the boiling point (77 K - boiling point of N2) and
apart from this the evaporation losses are considerably high.

I cannot understand how this can be 20 times cheaper compared to acid
battery cars (by the way, the link at your page to the Washington
University article doesn´t work). A simple compressed air driven car
should have a better energy balance as the cost to produce compressed
air is comparable low (with a simple compressor in your garage) and
you don't need a dewar-type of tank to store the liquid nitrogen
"fuel". For me this doesn't look like a good idea.

--------------------------------------------------
www.2ajobguide.com
Renewable Energy job board with jobs posted in 14 countries:
http://2ajobguide.com/wind_jobs_solar_renewable_energy_jobs.aspx
 
Don Lancaster...
Posted: Tue Sep 29, 2009 11:26 pm
Guest
Bolaleman wrote:
[quote:d4b9e0be6d]On Sep 28, 1:14 pm, Don Lancaster <d... at (no spam) tinaja.com> wrote:
Bolaleman wrote:
On Sep 25, 4:10 pm, Don Lancaster <d... at (no spam) tinaja.com> wrote:
hhc314 wrote:
On Sep 24, 12:47 pm, PotterFan <hull... at (no spam) web.de> wrote:
On Sep 22, 1:05 pm, Bolaleman <hull... at (no spam) hotmail.com> wrote:
By accident I found this photo of a self-made air condition system.
"Coolest" car AC I've ever seen Smile
http://thereifixedit.com/2009/07/02/epic-kludge-photo-ahhh-air-condit...
Cheers,
Bolalemanwww.2ajobguide.com
LOL, thanks for posting!
ROFL, nice! Thanks for posting.
"Newsie" will go ape on seeing this!
Harry C.
p.s., This is not as far fetched as at first it may appear. This is
conceptually the same setup as is used on luxury yachts and even
larger sailboats.
One of the neatest thing about liquid nitrogen powered cars is that the
A/C is trivial.
Liquid NITROGEN??? Is this the new alternative to the compressed air
cars?
Sadly, the energy density does not remotely approach lead acid.
http://www.tinaja.com/h2gas01.asp
--
Many thanks,
Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xml email: d... at (no spam) tinaja.com
Please visit my GURU's LAIR web site athttp://www.tinaja.com-Hide quoted text -
- Show quoted text -
Liquid nitrogen cars are a gee whiz student project.
The energy density sucks.

Not nearly as bad as compressed air, though.

Links athttp://www.tinaja.com/h2gas01.asp

--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xml email: d... at (no spam) tinaja.com

Please visit my GURU's LAIR web site athttp://www.tinaja.com- Hide quoted text -

- Show quoted text -

Sounds interesting but I guess the energy balance is terribly bad in
these cryocars as it costs a huge amount of energy (electricity) to
cool air down to the boiling point (77 K - boiling point of N2) and
apart from this the evaporation losses are considerably high.

I cannot understand how this can be 20 times cheaper compared to acid
battery cars (by the way, the link at your page to the Washington
University article doesn´t work). A simple compressed air driven car
should have a better energy balance as the cost to produce compressed
air is comparable low (with a simple compressor in your garage) and
you don't need a dewar-type of tank to store the liquid nitrogen
"fuel". For me this doesn't look like a good idea.

--------------------------------------------------
www.2ajobguide.com
Renewable Energy job board with jobs posted in 14 countries:
http://2ajobguide.com/wind_jobs_solar_renewable_energy_jobs.aspx
[/quote:d4b9e0be6d]
Liquid nitrogen cars are NOT a good idea.
But they are ridiculously better than compressed air cars.



--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email: don at (no spam) tinaja.com

Please visit my GURU's LAIR web site at http://www.tinaja.com
 
Bolaleman...
Posted: Wed Sep 30, 2009 3:13 am
Guest
On Sep 30, 1:26 am, Don Lancaster <d... at (no spam) tinaja.com> wrote:
[quote:93be578774]Bolaleman wrote:
On Sep 28, 1:14 pm, Don Lancaster <d... at (no spam) tinaja.com> wrote:
Bolaleman wrote:
On Sep 25, 4:10 pm, Don Lancaster <d... at (no spam) tinaja.com> wrote:
hhc314 wrote:
On Sep 24, 12:47 pm, PotterFan <hull... at (no spam) web.de> wrote:
On Sep 22, 1:05 pm, Bolaleman <hull... at (no spam) hotmail.com> wrote:
By accident I found this photo of a self-made air condition system.
"Coolest" car AC I've ever seen Smile
http://thereifixedit.com/2009/07/02/epic-kludge-photo-ahhh-air-condit...
Cheers,
Bolalemanwww.2ajobguide.com
LOL, thanks for posting!
ROFL, nice!  Thanks for posting.
"Newsie" will go ape on seeing this!
Harry C.
p.s.,  This is not as far fetched as at first it may appear.  This is
conceptually the same setup as is used on luxury yachts and even
larger sailboats.
One of the neatest thing about liquid nitrogen powered cars is that the
A/C is trivial.
Liquid NITROGEN??? Is this the new alternative to the compressed air
cars?
Sadly, the energy density does not remotely approach lead acid.
http://www.tinaja.com/h2gas01.asp
--
Many thanks,
Don Lancaster                          voice phone: (928)428-4073
Synergetics   3860 West First Street   Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xmlemail: d... at (no spam) tinaja.com
Please visit my GURU's LAIR web site athttp://www.tinaja.com-Hidequoted text -
- Show quoted text -
Liquid nitrogen cars are a gee whiz student project.
The energy density sucks.

Not nearly as bad as compressed air, though.

Links athttp://www.tinaja.com/h2gas01.asp

--
Many thanks,

Don Lancaster                          voice phone: (928)428-4073
Synergetics   3860 West First Street   Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xml email: d... at (no spam) tinaja.com

Please visit my GURU's LAIR web site athttp://www.tinaja.com-Hide quoted text -

- Show quoted text -

Sounds interesting but I guess the energy balance is terribly bad in
these cryocars as it costs a huge amount of energy (electricity) to
cool air down to the boiling point (77 K - boiling point of N2) and
apart from this the evaporation losses are considerably high.

I cannot understand how this can be 20 times cheaper compared to acid
battery cars (by the way, the link at your page to the Washington
University article doesn´t work). A simple compressed air driven car
should have a better energy balance as the cost to produce compressed
air is comparable low (with a simple compressor in your garage) and
you don't need a dewar-type of tank to store the liquid nitrogen
"fuel". For me this doesn't look like a good idea.

--------------------------------------------------
www.2ajobguide.com
Renewable Energy job board with jobs posted in 14 countries:
http://2ajobguide.com/wind_jobs_solar_renewable_energy_jobs.aspx

Liquid nitrogen cars are NOT a good idea.
But they are ridiculously better than compressed air cars.

--
Many thanks,

Don Lancaster                          voice phone: (928)428-4073
Synergetics   3860 West First Street   Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xml  email: d... at (no spam) tinaja.com

Please visit my GURU's LAIR web site athttp://www.tinaja.com- Hide quoted text -

- Show quoted text -
[/quote:93be578774]
Concerning the density of stored gas and mileage I agree but probably
not concerning energy balance. Anyway, I like the idea having a car
that I can fill with compressed air coming from a compressor in my
garage. I saw a video showing a car that runs 200 miles with
compressed air. I found it again here: http://www.youtube.com/watch?v=ztFDqcu8oJ4

--------------------------------------------------
[quote:93be578774]www.2ajobguide.com
Renewable Energy job board with jobs posted in 14 countries:
http://2ajobguide.com/wind_jobs_solar_renewable_energy_jobs.aspx[/quote:93be578774]
 
Don Lancaster...
Posted: Wed Sep 30, 2009 10:00 am
Guest
Bolaleman wrote:
[quote:e49f8fa981]On Sep 30, 1:26 am, Don Lancaster <d... at (no spam) tinaja.com> wrote:
Bolaleman wrote:
On Sep 28, 1:14 pm, Don Lancaster <d... at (no spam) tinaja.com> wrote:
Bolaleman wrote:
On Sep 25, 4:10 pm, Don Lancaster <d... at (no spam) tinaja.com> wrote:
hhc314 wrote:
On Sep 24, 12:47 pm, PotterFan <hull... at (no spam) web.de> wrote:
On Sep 22, 1:05 pm, Bolaleman <hull... at (no spam) hotmail.com> wrote:
By accident I found this photo of a self-made air condition system.
"Coolest" car AC I've ever seen Smile
http://thereifixedit.com/2009/07/02/epic-kludge-photo-ahhh-air-condit...
Cheers,
Bolalemanwww.2ajobguide.com
LOL, thanks for posting!
ROFL, nice! Thanks for posting.
"Newsie" will go ape on seeing this!
Harry C.
p.s., This is not as far fetched as at first it may appear. This is
conceptually the same setup as is used on luxury yachts and even
larger sailboats.
One of the neatest thing about liquid nitrogen powered cars is that the
A/C is trivial.
Liquid NITROGEN??? Is this the new alternative to the compressed air
cars?
Sadly, the energy density does not remotely approach lead acid.
http://www.tinaja.com/h2gas01.asp
--
Many thanks,
Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xmlemail: d... at (no spam) tinaja.com
Please visit my GURU's LAIR web site athttp://www.tinaja.com-Hidequoted text -
- Show quoted text -
Liquid nitrogen cars are a gee whiz student project.
The energy density sucks.
Not nearly as bad as compressed air, though.
Links athttp://www.tinaja.com/h2gas01.asp
--
Many thanks,
Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xml email: d... at (no spam) tinaja.com
Please visit my GURU's LAIR web site athttp://www.tinaja.com-Hide quoted text -
- Show quoted text -
Sounds interesting but I guess the energy balance is terribly bad in
these cryocars as it costs a huge amount of energy (electricity) to
cool air down to the boiling point (77 K - boiling point of N2) and
apart from this the evaporation losses are considerably high.
I cannot understand how this can be 20 times cheaper compared to acid
battery cars (by the way, the link at your page to the Washington
University article doesn´t work). A simple compressed air driven car
should have a better energy balance as the cost to produce compressed
air is comparable low (with a simple compressor in your garage) and
you don't need a dewar-type of tank to store the liquid nitrogen
"fuel". For me this doesn't look like a good idea.
--------------------------------------------------
www.2ajobguide.com
Renewable Energy job board with jobs posted in 14 countries:
http://2ajobguide.com/wind_jobs_solar_renewable_energy_jobs.aspx
Liquid nitrogen cars are NOT a good idea.
But they are ridiculously better than compressed air cars.

--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xml email: d... at (no spam) tinaja.com

Please visit my GURU's LAIR web site athttp://www.tinaja.com- Hide quoted text -

- Show quoted text -

Concerning the density of stored gas and mileage I agree but probably
not concerning energy balance. Anyway, I like the idea having a car
that I can fill with compressed air coming from a compressor in my
garage. I saw a video showing a car that runs 200 miles with
compressed air. I found it again here: http://www.youtube.com/watch?v=ztFDqcu8oJ4

--------------------------------------------------
www.2ajobguide.com
Renewable Energy job board with jobs posted in 14 countries:
http://2ajobguide.com/wind_jobs_solar_renewable_energy_jobs.aspx
[/quote:e49f8fa981]

The energy density of compressed air is abysmally low.
No means of efficiently compressing air is known.
The efficiency of most compressed air motors is an outright joke.

An efficient compressed air motor would have to exhaust at zero velocity
with zero noise. Ain't gonna happen.

The numbers do not remotely add up.

The ONLY thing compressed air has going for it is shop floor convenience.

http://www.tinaja.com/glib/nrglect2.pdf


--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email: don at (no spam) tinaja.com

Please visit my GURU's LAIR web site at http://www.tinaja.com
 
Bolaleman...
Posted: Thu Oct 08, 2009 4:18 am
Guest
On Oct 2, 2:40 pm, Don Lancaster <d... at (no spam) tinaja.com> wrote:
[quote:c8f510af0b]Bolaleman wrote:
On Sep 30, 12:00 pm, Don Lancaster <d... at (no spam) tinaja.com> wrote:
Bolaleman wrote:
On Sep 30, 1:26 am, Don Lancaster <d... at (no spam) tinaja.com> wrote:
Bolaleman wrote:
On Sep 28, 1:14 pm, Don Lancaster <d... at (no spam) tinaja.com> wrote:
Bolaleman wrote:
On Sep 25, 4:10 pm, Don Lancaster <d... at (no spam) tinaja.com> wrote:
hhc314 wrote:
On Sep 24, 12:47 pm, PotterFan <hull... at (no spam) web.de> wrote:
On Sep 22, 1:05 pm, Bolaleman <hull... at (no spam) hotmail.com> wrote:
By accident I found this photo of a self-made air condition system.
"Coolest" car AC I've ever seen Smile
http://thereifixedit.com/2009/07/02/epic-kludge-photo-ahhh-air-condit...
Cheers,
Bolalemanwww.2ajobguide.com
LOL, thanks for posting!
ROFL, nice!  Thanks for posting.
"Newsie" will go ape on seeing this!
Harry C.
p.s.,  This is not as far fetched as at first it may appear.  This is
conceptually the same setup as is used on luxury yachts and even
larger sailboats.
One of the neatest thing about liquid nitrogen powered cars is that the
A/C is trivial.
Liquid NITROGEN??? Is this the new alternative to the compressed air
cars?
Sadly, the energy density does not remotely approach lead acid.
http://www.tinaja.com/h2gas01.asp
--
Many thanks,
Don Lancaster                          voice phone: (928)428-4073
Synergetics   3860 West First Street   Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xmlemail:d... at (no spam) tinaja.com
Please visit my GURU's LAIR web site athttp://www.tinaja.com-Hidequotedtext-
- Show quoted text -
Liquid nitrogen cars are a gee whiz student project.
The energy density sucks.
Not nearly as bad as compressed air, though.
Links athttp://www.tinaja.com/h2gas01.asp
--
Many thanks,
Don Lancaster                          voice phone: (928)428-4073
Synergetics   3860 West First Street   Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xmlemail:d... at (no spam) tinaja.com
Please visit my GURU's LAIR web site athttp://www.tinaja.com-Hidequotedtext -
- Show quoted text -
Sounds interesting but I guess the energy balance is terribly bad in
these cryocars as it costs a huge amount of energy (electricity) to
cool air down to the boiling point (77 K - boiling point of N2) and
apart from this the evaporation losses are considerably high.
I cannot understand how this can be 20 times cheaper compared to acid
battery cars (by the way, the link at your page to the Washington
University article doesn´t work). A simple compressed air driven car
should have a better energy balance as the cost to produce compressed
air is comparable low (with a simple compressor in your garage) and
you don't need a dewar-type of tank to store the liquid nitrogen
"fuel". For me this doesn't look like a good idea.
--------------------------------------------------
www.2ajobguide.com
Renewable Energy job board with jobs posted in 14 countries:
http://2ajobguide.com/wind_jobs_solar_renewable_energy_jobs.aspx
Liquid nitrogen cars are NOT a good idea.
But they are ridiculously better than compressed air cars.
--
Many thanks,
Don Lancaster                          voice phone: (928)428-4073
Synergetics   3860 West First Street   Box 809 Thatcher, AZ 85552
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Concerning the density of stored gas and mileage I agree but probably
not concerning energy balance. Anyway, I like the idea having a car
that I can fill with compressed air coming from a compressor in my
garage. I saw a video showing a car that runs 200 miles with
compressed air. I found it again here:http://www.youtube.com/watch?v=ztFDqcu8oJ4
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The energy density of compressed air is abysmally low.
No means of efficiently compressing air is known.
The efficiency of most compressed air motors is an outright joke.

An efficient compressed air motor would have to exhaust at zero velocity
with zero noise. Ain't gonna happen.

The numbers do not remotely add up.

The ONLY thing compressed air has going for it is shop floor convenience.

http://www.tinaja.com/glib/nrglect2.pdf

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Many thanks,

Don Lancaster                          voice phone: (928)428-4073
Synergetics   3860 West First Street   Box 809 Thatcher, AZ 85552
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Don, I searched the web and found an interesting article called:
"Thermodynamic Analysis of Compressed Air Vehicle Propulsion" from a
work presented at the European Fuel Cell Forum. Here are some of the
conclusiones of this analysis:

- At 20°C a 300 Liter tank filled with air at 300 bar carries 51 MJ of
energy.
- under isentropic conditions (no heat is exchanged with the
environment) not more than 25 MJ become useful.
- By multi-stage expansion with inter-stage heating the expansion
process is brought closer to the isothermal ideal.
- The analysis is extended to the compression of air. Again, the ideal
isothermal compression is approached by multi-stage processes with
inter-cooling. By this approach energy demand for compression is
reduced to acceptable levels and system pressure and temperature are
kept within safe limits.
- The results of this analysis seem to indicate that the efficiency of
the four-stage
expansion process is acceptable, while even a four-stage air
compression with
inter-cooling is associated with significant losses. However, the
overall energy
utilization could be increased if the waste heat generated during the
air
compression process would be used for domestic water and space
heating.
- It seems that there is some justification for continuing the
development of compressed air cars. However, it would be useful to
establish the performance of such vehicles by an endurance race under
controlled conditions in the presence of the general public.

This is the link:http://www.efcf.com/reports/E14.pdf

I'm not familiar with the technical part and only have a basic
understanding of thermodynamcis. But what I understand is that this
idea is not a lost case and contains quite some potential.

Bolaleman
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I feel the numbers simply do not add up.
Not by a country mile.
And that the air powered car is an outright scam.

The best possible windmill efficiency is under 60%.
It is reasonable that a single stage compressed air motor cannot exceed
this value.

http://www.tinaja.com/glib/ratholes.pdf

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Many thanks,

Don Lancaster                          voice phone: (928)428-4073
Synergetics   3860 West First Street   Box 809 Thatcher, AZ 85552
rss:http://www.tinaja.com/whtnu.xml  email: d... at (no spam) tinaja.com

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[/quote:c8f510af0b]
That's probably the reason the mayor car companies never entered this
train.
 
 
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