What are the limits of the effectiveness of internal combustion engines? The car, designed by a team from Warsaw University of Technology, needs only to defeat liters of fuel per 659 kilometers. But this is just the beginning – before its constructors ambitious goal: 1,000 kilometers on one liter!
Extreme ecodriving
How many burns efficient car? Economical driving, good technical condition and proper road conditions allow to go below four liters per 100 kilometers, but it is not an end to the possibility of engineers. Two years ago, after more than a decade of development and the subsequent disclosure of conceptual models, Volkswagen unveiled the XL1 hybrid double-burning only 0.9 liters of diesel per 100 kilometers .
This little? For most drivers probably yes, but not for participants of the contest Shell Eco-marathon, aimed at selecting the most energy-efficient vehicle .
Blob – superoszczędny car with Polish
The work of such a vehicle in progress Also in Poland – a team of Student Vehicle Aerodynamics (SKAP) Warsaw University of Technology almost a decade builds from year to year improves super efficient vehicles, one of which – Blob – in 2012 set a record Polish, passing liter of fuel 659 km .
That’s ambitions do not end designers with SKAP-u, who this year, along with car improved droplet 2015 , will participate in the next edition of the competition being played in the Netherlands, Shell Eco-marathon and planning, that their vehicle will be able to take a ride on one liter of fuel and 1,000 km!
The project itself started two years ago – the greater part of that time was the concept phase, which is gathering ideas, finding optimal solutions and vehicle design and components. The vehicle is made of carbon composite, so far we have managed to reduce the weight of the shell. Other elements that contribute to our record result, this streamlined shape of droplets and self-designed engine. READ MORE
crowdfunding helps refine the droplet
What is important, part of the funds needed for the development and refinement of the project, managed to win thanks to crowdfundingowi and Internest platform. Our commitment – 10 thousand. gold – was exceeded by 47 percent.!
Why is burning so low? The creators of droplets focused on several aspects of the vehicle. One of them is to minimize weight, which was achieved through the use of ultra-light body, weighing about 3 kg. Another is limit aerodynamic drag , corresponding in the case of droplets by about 40 percent. burning.
At the heart of the motor vehicle is unique. In the previous model, which set a record Polish defender Serial Honda GX25 engine with bruschcutters, which has been subjected to various modifications. Despite the efforts of builders, but that was not the perfect solution – serial engine made taking into account the low cost of performance and ease of servicing, which in the case of a vehicle whose aim was to establish a record, meant compromises, deteriorating performance .
Custom engine will bring success?
That’s why the creators decided droplets build from scratch its own engine . The four-stroke, single cylinder air-cooled engine and has a capacity of 58 cm3 is fed ethanol, with 1.02 hp at 3200 rpm. During the conceptual work was adopted rather unusual founding:
During the study estimated that to maintain a constant speed of 30 km / h the vehicle needs 100-150 In continuous power. The engine with such low power cechowałby a relatively low efficiency, because the strategy has involved a temporary achieving optimal speed, then shut down the engine and drive further momentum. In addition, the ample power facilitate acceleration, but also help to overcome possible slope and variable wind on the track. READ MORE
About how droplet 2015 will cope during the competition, we will see soon. This year’s edition of the Shell Eco-marathon will take place on in Rotterdam 21 – May 24 . Good luck, Kropelko!
No comments:
Post a Comment