Alternative Electric Energy From Bumps (Police Trap)

Lecturers and students of Mechanical Engineering Ten November Institute of Technology(ITS) Surabaya developed bumps (police trap) on the road as a producer of electricity.
Such a device could be assembled as the user desires to the needs of street lighting or building.
The work has been tested before it passes a list of 20 finalists in the National InnovationContest 2011 at the Institut Teknologi Bandung, 4-5 February 2011.

Bump shape is specially designed. In the middle between the rise and fall, there is aboard sticking out of the bottom manifold fitted with a spring steel helix or coil.

Board height from the top of slope or derivative of about 2-3 centimeters. "It inhibits the rate of the vehicle," said Buzz Team Made Yudithia ITS Krisnabayu told Tempo on the sidelines of the exhibition at the Campus Center ITB east.
Every time a car or motorcycle wheels ran over bumps, the kinetic energy usuallywasted arrested last spring as a potential energy applied to the generator torsional.Simple homemade generator that is placed next to the police board was set up to sleepto save energy every six ran over happen. "The Innovations in energy storage in thisgenerator," said Dewi Diandra Devia, other team members.

Than six times ran over car or motorcycle, can accumulate electricity at 10.5 watts.Currents can be converted from AC to DC. That energy is then saved in a battery orbattery (batteries) before being used for lighting streets or buildings.

Whatever the weight and speed of the vehicle when it ran over bumps, the amount ofelectric power generated remains the same. But should be avoided ran over truck type vehicle that is not easily damaged equipment.



Ideally, says 20-year-old university student, the appliance is placed in the Publicrefueling stations (gas stations), around the door of the bar parking lot, and drive-thrukiosks. "The electricity produced can be used to illuminate places like that," he said.

The cost of making the special police Rp 1.5 million per unit. Its resistance range of 1.5 to 2 years. The device according to them, much cheaper than the cost of electricity consumption per pole street lights are lit 10 hours of Rp 2.3 million per month.

After later patented, says Diandra, a tool that was conceived and developed in conjunction Must Laksana Guntur, lecturer Field of Study Design EngineeringEngineering Program ITS, is planned to be offered to local governments.