KOMPAS .. com - Jaguar C-X75 - plug-in electric supersportcar - concept car that is currently in the showcase at the Mondiale de l'Automobile Paris 2010, a horrendous technology. Many new things are found in this car.
This concept car is categorized as an "extended range electric vehicle" or an electric car with the distance away. Understandably, equipped with generators that are ready to charge the battery during the fuel there are two micro switch on the gas turbine. This car can also be called a series hybrid, like the Chevrolet Volt. Claimed as the fastest electric car today, 330 km / hour.
Micro-Turbine
A very interesting technology is a micro gas turbine that is used to charge batteries or direct plays electric motor mounted on four wheels. Especially for this turbine, Jaguar must cooperate with Bladon Jets, gas turbine engineering company specialized in the UK.
Both companies get help from the parent Jaguar, Tata Motors $ 1.8 million. For the generator, switched reluctance type (SRG) using the product SR Drive. Actually, the development of micro-gas turbines for cars first by an Israeli company, ETV Motors.
July, they have tried it on the Toyota Prius by replacing the nickel-metal hydride battery (NiMH) and lithium-ion battery and take off down the motor fuel is replaced with a micro gas turbine. Be, the microturbine-electric Prius plug-in hybrid.
80.000rpm
Micro gas turbines installed in the middle, both the total generating power 140kW (188PS) work on constant rotation 80.000rpm. The four electric motors at each wheel, the total torque 1.600Nm or 440Nm respectively.
Bladon Jets based Shropshire, England made a breakthrough by creating a multi-stage axial compressor, usually used in large gas turbines. Now reduced in size but still with a high tolerance. Each mikroturbin gas weighs only 35kg.
According to the Jaguar engineers, micro-turbines have several advantages as a source of activator generator compared to piston engines when used. Among other things, because not many moving parts, no memerlkan turbine lubrication and cooling. All of that reduces the weight. Amazingly, the turbine can use various types of fuel, including diesel, biofuels, CNG and LPG.
Turbines achieve rotation and optimum working temperature within a few seconds so it can be used directly to charge the battery. The turbine can work sequentially or simultaneously, depending on the energy required to charge the battery. Can also directly moved the electric motor.
Aerodynamic Package
Because the flue gas to form part of the active aerodynamics package, Jaguar uses a special layer of zirconia-molybdenum. This advanced heat-resistant layer, used on F-1 car and used plasma spray diffuser carbon fiber to protect it from flue gases.
Jaguar targeting lower drag coefficient (cd) or wind resistance for improved its fuel efficiency. For this, C-X75 has an additional channel to adjust the volume of required air turbine. Exhaust flow from the turbine system is also used as active aerodynamics.
The driver and passenger in front of a closed air box which houses the micro-gas turbine. Seat mounted in such a race car, and air to the turbine flows through channels in the body structure. Jok steering wheel, tools and instruments and boxes konttrol pedals all adjust to the driver.
Large hole in front, used as brake cooling vents and also are able to add aerodynamic efficiency. Behind, there is permukaanyang can control the air flow vertically and work automatically according to speed. His job directing airflow to the rear wheels to improve stability and efficiency, especially when the car accelerated at high speed.
Diffuser
Rear diffuser made from carbon fiber, an important element in leading the airflow under the car and creates "downforce" or traction. Also there is an active airfoil, which lowers automatically when the car speed increases. The fans on the hole that turns the turbine exhaust gas flow, also assigned to streamline Venturi channel.
With such concept, the car body seems to stay slim, compact and cepert and of course continue to generate traction and downforce are great. Cd car is claimed to 0.32.
"We want the air to flow smoothly and in large numbers, not only on the car, also through a channel in the rear air box. Understandably, when the gas turbine works at 80,000 rpm, requires 35,000 liters of air per minute. That means that we need to make a series of air channels are fit, "said Matt Beaven, Jaguar designers.
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