Bmw Efficientdynamics Reaches An Impressive Goal
BMW EfficientDynamics has reached a new milestone. They have equipped over 1,000,000 vehicles with fuel-saving technologies as a standard. BMW has proved that environmentally friendly mobility and driving pleasure are not opposites. The German automaker also has a near-production-ready vehicle that combines the performance of a BMW M model with the fuel efficiency of a modern small car.
The BMW Vision EfficientDyamics has ActiveHybrid technology and consumes only 3.76 liters/100 km and has a CO2 emission of 99g/km. The vehicle features a three-cylinder common-rail turbodiesel and an electric motor on each axle. It also has the technology to recharge the 98 lithium-polymer batteries using brake energy regeneration and has active aerodynamics with a thermoelectric generator for on-board power supply.
Due to BMW EfficientDynamics, BMW has 24 best in class models with no more than 140g/km of CO2. In addition, BMW EfficientDynamics is responsible for several new technologies. They have introduced a four-cylinder petrol engine that significantly reduces CO2 emissions. They have also added the auto start/stop function. When the car is at a standstill or in neutral, the engine automatically switches off and then restarts when the driver hits the clutch pedal. BMW has also found a way to use the energy from braking. This reduces the amount of power the battery takes from the engine.
Another new technology BMW has come out with is an as needed electric power steering. Whenever the steering wheel is kept at the same position, the electric motor does not use any energy. The electric power steering is supported by an electric motor so that energy is only used when it is needed.
BMW EfficientDynamics has helped to make a large dent in reducing fuel consumption and emissions. Using diesel technology, lightweight materials and brake regeneration technology, BMW is improving the functionality of vehicles on the road while also keeping the joy in driving.
About the Author:
BMW of Watertown is proud to serve the Watertown, Connecticut area. Carrying a full line of new and used BMW cars, BMW of Watertown offers the best selection when it comes to purchasing a vehicle. The knowledgeable service department at BMW of Watertown is prepared to assist with repairs and routine maintenance and the BMW Parts Department offers one-stop shopping on a full selection of BMW parts and accessories. Visit BMW of Watertown online at http://www.bmwofwatertown.com.
Source: http://www.articlesnatch.com/Article/Bmw-Efficientdynamics-Reaches-An-Impressive-Goal/2612933
Would a Radioisotope thermoelectric generator work good to power a Martian or Lunar habitat?
http://en.wikipedia.org/wiki/Radioisotope_thermoelectric_generator I don’t understand the math for the life span part, makes my head hurt.
how do i make a thermoelectric generator?
i’m trying to make a thermoelectric generator from easy to get items (preferably household items). please be specific and if you can, please include a source.
and, how can i compare this to a solar cell?
thxx in advance first one to answer completely gets 10 points.
Thermoelectric Generator?
A thermoelectric generator is a pair of dissimilar metals heated at a common point and a voltage drawn from the separate metal points, right??? My Question is: If we use the infrared heat from the sun to heat these metals to generate the voltage, does it only absorb the heat of the sun or does it also generate more heat than it absorbs? thanking you in advance.
How do I do a science fair on solar energy with a thermoelectric generator? How would I ask the question?
For example, if I wanted to see how much waste energy from a house can be turned into usable electricity with a thermoelectric generator, how would I do that?
Or any more ideas?
And how would I word that into a question? “How much electricity can a thermoelectric generator power from waste heat from a house?” or something? PLEASE ASAP
I want to charge a AAA lithium ion battery with a thermoelectric generator?
Can I hook up the thermoelectric generator straight to the positive and negative terminals of the battery? Do I have to worry about overcharging? This generator is small and produces very little voltage and amperage
I also have a battery charger that converts AC power to DC power. Can I just cut the wire and splice the thermoelectric generator wires to the cord?
Thank you everyone, sorry, please excuse my ignorance.
The first question would be “How does the temperature of a thermoelectric device effect the electrical output?” You can measure the temperature fairly easily while measuring the intensity of sunlight is more difficult.
The most likely question about waste heat would be one of these two: “Can electricity be produced from the low level of waste heat from a house heating system?” “Is it cost effective to install thermoelectric generators in the heating system of a house?”
A cheesy answer would be it creates more heat by invoking the 2nd law of thermodynamics. But…
Also to get a voltage you need two junctions of the dissimilar metals. One hot and one cold. The voltage is proportional (not perfectly, but correctably) to the temperature *difference*.
If you look up a thermocouple chart, you’ll see that the voltage is tiny (mV range). Sometimes you need to wire a bunch in series (a thermopile) just to get a reading. So they’re not really very practical except for some small coolers (there are some commercially available ones) and for measuring temperatures. In the latter, also consider an RTD.
The conservation of energy is still applies with a little bit of loss from I^2R (Ohmic or Joule heating). Thus it creates a little more heat than it absorbs
If it will work in the Voyager space probes that are outside the solar system by now, they will work on Mars. They don’t generate very much electricity, however; just enough to power some electronic equipment for a long period of time. The half-life of the radioactive material used (typically plutonium) determines how much electricity is produced over time.
The only method I know with which you can make electricity out of heat (directly, not via a turbine like power stations do) is an electronic component called a thermocouple. Because one thermocouple gives off too tittle energy to do anything useful with it, you will require an array of several. Such array exists on the market, see http://www.hi-z.com/websit03.htm
And because there are not many practical applications where you can use a small amount of electricity near a heat source, the only “home-use” of this technology I have seen is a fan which you put on your oven / stove, to blow the warm air further to the centre of your room. Example: http://www.fluesystems.com/sundries/info/ecofan.htm
You can’t really compare this with solar cells, because the energy sources are entirely different between those two.
The most noticeable difference is that one thermocouple produces a tiny amount of voltage at a reasonable current. Whereas photo cells produce a reasonable voltage at a “soft” current (higher internal resistance)..