Go Back   EcoModder Forum > EcoModding > EcoModding Central
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 08-22-2008, 04:09 PM   #21 (permalink)
EcoModding Lurker
 
Join Date: Jul 2008
Location: Indiana
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
It depends on the manifold design, I think. If a 'honeycomb' design could be machined in copper or aluminum, keeping the passages reasonably small, I'd Swag (scientific, wild-a$$ed guess) maybe six...
For a total of 30 amps. Now, this is where I get lost. How does that relate to what the alternator produces? Electrical theory was never my strong suit... lol

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 08-22-2008, 04:10 PM   #22 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 14,312
Thanks: 22,227
Thanked 6,643 Times in 4,188 Posts
My middle brother once worked at a steel mill near El Paso,Texas.His job was down in a pit,cutting white-hot steel as it emerged from extrusion dies.He wore an insulated asbestos fire suit,equipped with a vortex-tube for cooling.He claimed that it required a remarkable amount of air(pressure and volume) to make the thing operate.I know thats a very subjective comment,buts thats all I have.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Old 08-22-2008, 04:20 PM   #23 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 14,312
Thanks: 22,227
Thanked 6,643 Times in 4,188 Posts
absorption

Quote:
Originally Posted by wagonman76 View Post
I think the absorption principle would be a great idea. Like what is used in camper fridges. It uses no evergy except for a heating element to boil a fluid which cools the air inside the fridge and the freezer works well too. Set up the coils inside the car and divert some exhaust heat to boil the fluid. Ive also thought for a long time that this would work well for home cooling too, use the sun to boil the fluid and the hotter the sun beats down, the cooler it gets in the house.
My partner in crime is a boiler operator and baby sits a natural gas-fired turbine-generator(5-MW),which utilizes waste heat to operate absorption cycle chillers for space cooling.The system uses Lithium Bromide as the working medium,and I understand that it will operate at temps as low as 210-degree F.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Old 08-22-2008, 04:31 PM   #24 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 14,312
Thanks: 22,227
Thanked 6,643 Times in 4,188 Posts
Question.Is the air conditioning system on a Prius a non-engine-belt-driven, hermetically-sealed,electrically-powered system? I'll wait 'til I hear back before I go any more stupid.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Old 08-22-2008, 04:41 PM   #25 (permalink)
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,181

CM400E - '81 Honda CM400E
90 day: 51.49 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)
Thanks: 2,479
Thanked 2,550 Times in 1,537 Posts
The Prius uses the main battery pack to power its electric compressor pump. I think this is mainly to provide A/C while the engine is off though.
__________________
Current project: A better alternator delete
  Reply With Quote
Old 08-22-2008, 05:40 PM   #26 (permalink)
Master EcoModder
 
Join Date: May 2008
Location: Auburn, NH
Posts: 451

Wicked Wanda - '99 VW Beetle GLS
90 day: 29.59 mpg (US)

Green Monster - '99 Ford Explorer Sport
90 day: 16.73 mpg (US)

Dad's Taxi - '99 Honda Odyssey EX
90 day: 24.23 mpg (US)
Thanks: 0
Thanked 2 Times in 2 Posts
It's called an "electric inverter" A/C system. Here is a Toyota slide presentation on how it works:

http://www.epa.gov/cppd/Presentation...20inverter.pdf
__________________
  Reply With Quote
Old 08-22-2008, 06:32 PM   #27 (permalink)
Legend in my own mind
 
trikkonceptz's Avatar
 
Join Date: Apr 2008
Location: Homestead, Fl.
Posts: 927

Evil Pumpkin - '08 Scion xD RS 1.0 #1633
90 day: 35.45 mpg (US)

Silent Silver Killer - '10 Honda Insight EX
90 day: 51.5 mpg (US)
Thanks: 2
Thanked 14 Times in 13 Posts
OK after seeing that presentation ... lets break it down to simplest form and argue backwards ...


Why can't we buy a Prius Compressor, make hoses and brackets with the proper fittings and wire it up with a switch we control to a seperate battery or in line with our current battery?
__________________
Thx NoCO2; "The biggest FE mod you can make is to adjust the nut behind the wheel"

I am a precisional instrument of speed and aeromatics
If your knees bent in the opposite direction......what would a chair look like???





  Reply With Quote
Old 08-23-2008, 07:55 AM   #28 (permalink)
Master EcoModder
 
Join Date: May 2008
Location: Auburn, NH
Posts: 451

Wicked Wanda - '99 VW Beetle GLS
90 day: 29.59 mpg (US)

Green Monster - '99 Ford Explorer Sport
90 day: 16.73 mpg (US)

Dad's Taxi - '99 Honda Odyssey EX
90 day: 24.23 mpg (US)
Thanks: 0
Thanked 2 Times in 2 Posts
Quote:
Originally Posted by trikkonceptz View Post
OK after seeing that presentation ... lets break it down to simplest form and argue backwards ...


Why can't we buy a Prius Compressor, make hoses and brackets with the proper fittings and wire it up with a switch we control to a seperate battery or in line with our current battery?
If the whole point of this mental exercise is to save gas by reducing the load on the engine, then running it off a separate battery makes the most sense.
__________________
  Reply With Quote
Old 08-23-2008, 02:15 PM   #29 (permalink)
Master EcoModder
 
chuckm's Avatar
 
Join Date: Aug 2008
Location: Monroe, LA
Posts: 308

Exploder - '02 Ford Explorer xlt

Rolla - '02 Toyota Corolla ce
Team Toyota
90 day: 44.43 mpg (US)
Thanks: 11
Thanked 13 Times in 12 Posts
A spin off of an idea mentioned earlier: Sterling engines. Use the heat from exhaust gas to power several Sterling engines. Then use the Sterling engines to power directly coupled Sterling cycle cryocoolers.
Additionally, you could also couple the cryocoolers to motors (powered by solar panels) to maintain cooler temps out in the parking lot. This would help lower the time to effective cooling.
__________________
"Jesus didn't bring 'Natty Lite' to the party. He brought the good stuff."
  Reply With Quote
Old 08-24-2008, 03:33 PM   #30 (permalink)
EcoModding Lurker
 
Join Date: Feb 2008
Location: Washington
Posts: 33
Thanks: 0
Thanked 4 Times in 4 Posts
Vortex tubes aren't very efficient at all. They only use them when compressed air is handy (like supplied breathing air, or a shop) to get more cooling than the air alone. They're light and simple, but loud and take a lot of air.

A commercial source of them lists BTU/h cooling here. The biggest they have is 6000 BTU/h... the A/C in my Civic is listed at 14800. It also requires 100 scfm, which would take a huge (~30hp) compressor. So standard
A/C is about 10-20 times more efficient, not counting the air-drying effect.

Thermo-electric coolers are also less efficient than refrigerant systems. Also, ice has more cooling for the same weight as a battery, so if you want a rechargeable system, just use a cooler full of ice.

I think the fan seat cover is the closest you'll get to all your requirements.

  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Grill Block Poll. Ryland Aerodynamics 33 08-03-2017 11:30 AM
The life of an ecomodder's wife... WaxysChick Introductions 14 09-02-2008 08:10 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com