Apair of bicycle tyres, a handle and a battery is all that Durga Sriharsha needed to design an innovative moped.
A student of the Mechanical Engineering branch in Tirumala Engineering College of Narsaraopet in Guntur district, Sriharsha set his eyes on designing a ‘humble cousin’ of a moped using bare minimum material at the backyard of his house a year ago.
“Science of automobile engineering has fascinated me since my school days. I wanted to make a motor cycle that is eco-friendly, cheap and occupy less road space. People can use this for commuting shorter distances,’’ Harsha explained.
The backyard at his house soon resembled a mechanic’s workshop as Harsha began to give shape to his dream. The idea was to design a battery powered bike to save on fuel and also prevent carbon emissions. With the help of a mechanic friend, he procured a 250 watt electric motor made in China of 24 VDC capacity. The capacity of the motor was enhanced to 2,500 RPM and a 12-volt battery was used to power the motor. A timing chain was used and an internal expandable braking system was put in place. The bike could now pull 70-80 kg and could be easily be used even by adults. Once the major part of the mechanical part was over, Harsha focussed on the shape of the motor cycle.
Using a pair of bicycle tyres, a used handle bar and a chassis, he designed the no-frill bike which cost him just Rs. 6,500. “`People use scooters and motor cycles to commute even short distances which burns a hole in their pockets. This is a sort of moped that can be used to cover short distances like the local market, a nearly restaurant of a close-by cinema hall in the city. This moped is cheap, eco-friendly and occupies less space on the road,’’ says Harsha.
The streak of innovation in Harsha has already got recognition. His design won him appreciation at a State-level Vignan Mahotsav fest held a couple of months ago.
P. Samuel Jonathan