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This blog post via: Porsche 911 GT3 is based on hybrid power

Porsche 911 GT3 is based on hybrid power







Porsche displayed at the Geneva Motor Show 2010, the hybrid Renner 911 GT3 R. The highlight of his eco-drive: Instead of batteries, a flywheel that stores energy.



Naive reverie or future technology?



By Jan Horn A Porsche high speeds loves living from touring in the red. The boxer engine in a 911 at the limit just feels really comfortable, then screams already well beyond the 7000 mark. Lovely! But this maximum speed is nothing if a GT3 R Hybrid only comes once in full swing. Then the 7000/min a Series-911 shrink to the spinning top-level - the new racer issue makes 40,000 (!) Revolutions. Okay, it's not the six of the Endurance racing car, which goes about it so ludicrously high - but here lies the main module of Porsche's new hybrid approach to the stuff: the flywheel storage.



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A flourish of wings animal: the 642 horsepower 911 GT3 R hybrid is designed to show how effectively a hybrid without the batteries.



It is an electric motor-generator unit in oversized, which consists of a magnetized rotor and consists of a plastic plunger. To protect against rupture of the extremely fast circular rotor is still tightly in a plastic sleeve carbon-wrapped. This high-tech gyroscope in the format of a washing machine drum begins with the brakes on the energy produced there later than from electric power again. The maximum "load", which is in this mass momentum, at least six to eight seconds long enough for 162 bhp, which act on two electric motors at the front axle. Power in the GT3 R in conjunction with the hybrid Vierliter boxer engine (480 hp) whopping 642 hp. How Porsche wants mitmischen in May at the 24-hour race at the Nurburgring, downright slow down the competition. Plays in the extra performance just one of several roles. Wheel drive vehicle as it provides extra traction, to run the hybrid racer economical thanks to the energy recovery.



Read the complete article and a preview of how the future might look more hybrid from Porsche, see CAR PICTURE 6 / 2010 - from 12 February onwards.



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The blog post via: Electrodes, membranes and electrolytes



Redoxflow Batteries



Today, electricity is usually stored as energy in storage pumped storage power plants. The power plants have an upper and a lower reservoir. With low demand for electricity, the water with electrical energy, against the force of gravity in the higher-level reservoir is pumped.



The stored water in the upper reservoir can be used to drive the power turbines in order to regain power. The downside: The stores have a relatively low efficiency - so much energy is lost. And they need special geographical conditions - no gap is not current.



Compressed air in the basement of the Earth

One possibility hold electrical energy, providing compressed air storage. This air is compressed and stored in underground caverns, but also their availability is limited.

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The prototype of a battery Redoxflow

No question: In order to make electricity from wind and sun to calculate and competitive, a need for new high-performance storage systems. A promising are Redoxflow storage batteries. This enables long-term hold on power for hours or days, and in large quantities. The actual energy storage are liquid electrolytes and stored in tanks.



"Lull prevails or not the sun is the energy stored in a Redoxflow electrode stack, similar to the construction of a fuel cell, converted back into electricity," says Dr. Jens Tübke from the Fraunhofer Institute for Chemical Technology ICT.



Redox Batteries: Smaller and more durable



Compared to conventional lead-acid batteries are redox batteries in these memory sizes smaller, and especially long-lived - they have about ten times longer life. The disadvantage is that they are still in proportion to the power and energy density can be expensive.



Researchers at the ICT will change that: "We have built a prototype developed Redoxflow battery, with which we can test various electrode materials, membranes and electrolytes as flexibly as possible," explained Tübke the approach of the ICT researchers. "In order to compare different redox systems in a test setup. So we can work out the pros and cons of each system clean and test new materials. "



In our mobile world power from the preserve is in high demand. So that we can go in the future not only environmentally friendly car, but also use energy from wind and solar power efficiently, we need new storage systems.



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