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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 11-28-2009, 01:19 PM   #11 (permalink)
dcb
needs more cowbell
 
dcb's Avatar
 
Join Date: Feb 2008
Location: ÿ
Posts: 5,038

pimp mobile - '81 suzuki gs 250 t
90 day: 96.29 mpg (US)

schnitzel - '01 Volkswagen Golf TDI
90 day: 53.56 mpg (US)
Thanks: 158
Thanked 269 Times in 212 Posts
Quote:
Originally Posted by winkosmosis View Post
It's not like turbo charging doesn't also draw amps. It's a myth that a turbo scavenges free energy. Adding more backpressure with a turbine causes the piston to have a harder time moving up.
There is also additional pressure pushing down on the pistons on intake, and you have to consider the temperature drop across the turbine as well as the pressure drop when considering the energy recovered by a turbo.

Considering the fact that you can get the same power out of a smaller engine, yes, it is more efficient. If you reclaim exhaust energy to pack more fuel/air into an existing engine then it probably is NOT going to be more efficient.

But there is energy to reclaim in the exhaust and a turbine is a contemporary method of reclaiming it, as in the exhaust powered alternator, or the turbo compound engine
Controlled Power Technologies... TIGERS

__________________
WINDMILLS DO NOT WORK THAT WAY!!!
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 11-28-2009, 02:52 PM   #12 (permalink)
Pokémoderator
 
cfg83's Avatar
 
Join Date: Dec 2007
Location: Southern California
Posts: 5,864

1999 Saturn SW2 - '99 Saturn SW2 Wagon
Team Saturn
90 day: 40.49 mpg (US)
Thanks: 439
Thanked 532 Times in 358 Posts
winkosmosis -

Quote:
Originally Posted by winkosmosis View Post
It's not like turbo charging doesn't also draw amps. It's a myth that a turbo scavenges free energy. Adding more backpressure with a turbine causes the piston to have a harder time moving up.
The "hybrid" version uses about 200 Amps but says that a hybrid battery pack can absorb it :

Super Power Charger :: Green-Air MPG Supercharger :: Green-Air Hybrid Supercharger
Quote:
...
One of the wonderful aspects of an electric supercharger is; hybrid already produce plenty of electricity to power it!
...
Each patent pending SPC Green-Air Hybrid features:
Twin opposed 108amp ultra high speed brushless motors able to handle 12 volts – 24 volts, no load rpm per volt is 4,000 or 12v = 48,000 no load RPM - up to – 24v = 96,000rpm, resistance is a mere 0.0034 and they operate with extreme efficiency.
...
Twin high amperage ultra low resistance computers to control the twin motors, 200amp constant and 230amp burst, both encased in our patent pending full aluminum cooling box injected with moisture free gas.
...
CarloSW2
__________________

What's your EPA MPG? Go Here and find out!
American Solar Energy Society
  Reply With Quote
Old 11-28-2009, 04:01 PM   #13 (permalink)
Smeghead
 
Join Date: Oct 2009
Location: South Central AK
Posts: 933

escort - '99 ford escort sport
90 day: 42.38 mpg (US)

scoobaru - '02 Subaru Forester s
90 day: 28.65 mpg (US)
Thanks: 32
Thanked 146 Times in 97 Posts
Quote:
Originally Posted by jamesqf View Post
Except then you have the same problems as with drafting: you've got to keep 100% alert, or you're under the truck :-)

Imagine instead a telescoping/articulated arm with an electromagnet on the end. Come up behind a truck at cruising speed, extend the arm, flick the switch, and suddenly your fuel consumption drops to just what's needed to power the magnet.

If you wanted to get slick, you could even build in a shock absorber for a more comfortable ride.
5th gear, fuel cut off coasting to keep the battery charged while attached?

You could attach a trailer brake switch to the arm to activate your brakes when the truck slows down.
__________________

Learn from the mistakes of others, that way when you mess up you can do so in new and interesting ways.

One mile of road will take you one mile, one mile of runway can take you around the world.
  Reply With Quote
Old 11-28-2009, 04:47 PM   #14 (permalink)
EcoModding Apprentice
 
Bicycle Bob's Avatar
 
Join Date: May 2008
Location: N. Saskatchewan, CA
Posts: 1,805

Appliance White - '93 Geo Metro 4-Dr. Auto
Last 3: 42.35 mpg (US)

Stealth RV - '91 Chevy Sprint Base
Thanks: 91
Thanked 460 Times in 328 Posts
I think that an electric supercharger has considerable potential, since it could spend most of its time as a substitute throttle plate, generating power. Ideally, it would be combined with variable valve timing and, especially, a variable combustion chamber volume to maintain charge density at ignition. One could get excellent efficiency and smoothness across a wide range of outputs.

You don't really need anything as obvious as a magnetic fingertip to draft at near zero clearance. The sonar rangefinder from a camera should do fine.
  Reply With Quote
Old 11-28-2009, 10:11 PM   #15 (permalink)
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,919

Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
Thanks: 1,369
Thanked 430 Times in 353 Posts
Wow, you guys really took that one to the ends....
__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

  Reply With Quote
Old 11-29-2009, 12:11 AM   #16 (permalink)
Master EcoModder
 
Join Date: Jun 2008
Location: Earth
Posts: 5,209
Thanks: 225
Thanked 811 Times in 594 Posts
Quote:
Originally Posted by Bicycle Bob View Post
You don't really need anything as obvious as a magnetic fingertip to draft at near zero clearance. The sonar rangefinder from a camera should do fine.
I don't think that's nearly as good. To get it to work at all, you'd need to interface with throttle & brakes so as to station-keep - and what if the semi you're auto-drafting on has better brakes than you?
  Reply With Quote
Old 11-29-2009, 12:13 AM   #17 (permalink)
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,919

Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
Thanks: 1,369
Thanked 430 Times in 353 Posts
This is why I would like a mechanical connection. He can drive, I can sleep.
__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

  Reply With Quote
Old 11-29-2009, 01:44 AM   #18 (permalink)
Master EcoModder
 
Join Date: Sep 2008
Location: Texas
Posts: 632
Thanks: 0
Thanked 26 Times in 24 Posts
Quote:
Originally Posted by Frank Lee View Post
Electric.... magnetic... whats the difference?



Get one of those and glom onto a semi.
http://home.hiwaay.net/~bzwilson/prius/pri_mag.jpg
__________________
If America manages to eliminate obesity, we would save as much fuel as if every American were to stop driving for three days every year. To be slender like Tiffany Yep is to be a real hypermiler...

Allie Moore and I have a combined carbon footprint much smaller than that of one average American...
  Reply With Quote
The Following User Says Thank You to NiHaoMike For This Useful Post:
Frank Lee (11-29-2009)
Old 11-29-2009, 02:09 AM   #19 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,762

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,585
Thanked 3,555 Times in 2,218 Posts
And viola! There it is!
__________________


  Reply With Quote
Old 11-29-2009, 02:14 AM   #20 (permalink)
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,919

Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
Thanks: 1,369
Thanked 430 Times in 353 Posts
Quote:
Originally Posted by Frank Lee View Post
And viola! There it is!


Voila! I love catching those stupid typos... No offense, Frank.

__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

  Reply With Quote
Reply  Post New Thread




Similar Threads
Thread Thread Starter Forum Replies Last Post
Electric car conversion: Project ForkenSwift MetroMPG Fossil Fuel Free 1056 12-14-2024 01:21 AM
Electric Cars Push Japan Engine Parts Makers to Crisis Mode tjts1 The Lounge 14 12-23-2012 01:47 PM
Milwaukee Electric Car Club (Running EVent!) bennelson Events & Meet-ups 18 10-17-2011 12:04 PM
100 mile range Ranger EV? Frank Lee Fossil Fuel Free 10 08-05-2010 01:09 PM
Article: Electric Subaru Due in 2009, One Year Early MetroMPG Fossil Fuel Free 8 08-29-2009 01:19 AM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com