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Thermoelectrics May Improve Efficiency in Gasoline-Powered Cars

For a car that runs on gasoline, just one third of each gallon of fuel actually powers its systems. The rest, turned into heat, is wasted. However, new applications of thermoelectric (TE) power may allow automobiles with internal combustion engines to be built to run more efficiently. Transforming some of this unused heat into electrical energy could help power everything from lights and http://www.tevaka.com/generic-cialis-online windows of http://www.drk-dillenburg.de/cialis-from-india passenger cars to hydraulics and electric doors of construction vehicles.

Published in the Energy Quarterly section of the June 2013 issue of the Materials Research Society (MRS) Bulletin, Philip Ball's Thermoelectric heat recovery could boost auto fuel economy begins by acknowledging that, because electric vehicles that run on http://cngnewengland.com/cialis-pfizer-online batteries "remain a distant prospect for routine use, especially for long-haul heavy transport and construction machinery," internal combustion engines will likely stick with us for a while--along with their inefficiencies and pollution.

TE generators would help put the fossil fuel to levitra south carolina better use, by converting some of the wasted thermal energy to electrical energy. Fuel efficiency would also improve with TE generators taking some of the alternators' electricity-generating responsibilities. NASA has shown TE conversion efficiencies up to 15% in high temperature gradients. If similar efficiencies can be achieved in automobiles, turning 5-10% of a vehicle's wasted heat into electricity could mean a 3-6% reduction in fuel consumption.

Creating electrical energy from thermal energy isn't easy. Since only a little electric energy is generated by a lot of thermal energy, increasing the coupling of heat and electrical transport is critical to making TE power practical beyond unique applications like spacecraft. The difficulty of making automotive engineering work with these TE modules, as well as the high cost of order cheapest viagra online the materials needed are also challenges for researchers developing this technology. However, as Ball writes, according to the levitra testimonial lead researcher at IAV in Berlin, Daniel Jänsch, “Legislation, especially in Europe, is a driving force, and manufacturers could decide to implement more expensive technologies instead of paying carbon-emissions penalties." Jänsch also states, if TE systems reach their potential, thermoelectric power could be deployed in passenger cars as early as 2020.

via: Cambridge University Press

image CC BY-SA 2.0 by Richard Masoner / Cyclelicious

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Comments (5)Add Comment
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Heat recovery is not new. This idea is not clever
written by Grant, June 25, 2013
Heat to electricity capture is a last resort really. Turbo charging an engine is much more efficient than trying to wow look it cialis australia no prescription generate electricity.

Turbo chargers extract waste heat from the exhaust and directly convert it into mechanical energy to pump additional oxygen into the combustion cylinders. This makes the engines more efficient i.e use less fuel.

Only after you have extracted bulk energy from the exhaust with a turbo charger would a sane engineer even consider to extract after-turbo remaining energy as electricity.
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written by Joseph, June 26, 2013
Couldn't this act like a battery charger for electric vehicles or hybrids in sunny/desert areas? It's usually always hot in some regions, just park out in the sun and as the car heats up it charges the battery? Wouldn't work so great for colder regions but sounds promising other than having solar panels attached all over the vehicle smilies/smiley.gif
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This is essentially Ford's Eco-Boost technology
written by Alan, July 03, 2013
This is pretty much what Ford is click here take levitra doing with their Eco-Boost technology. www.ford.com
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written by Richard, July 10, 2013
Turbos don't convert heat into mechanical energy. The impeller is driven by the kinetic energy of the exhaust gasses, which happens to be hot from the combustion process. Heat in a turbo is actually a drawback.
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gofer
written by John , July 22, 2013
Ford engineers developed a heat --> electricity modality in the 60s, spun it off to JPL in the 70s and eventually it ended up with the http://www.omroepgroesbeek.nl/cialis-from-canada USAF in the 80s... but I don't believe it has Ever gotten any civilian development. It required NO moving parts, and involved halide ion exchange. I figured that some day it'd be part of some "co-generation" schemes (my own preference being something I could hook onto a wood heat-stove)... and I'm still waiting. ^..^

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