Innovative product that was created by Universitas Indonesia (UI) student got another
achievement on world level. Two students from Faculty of Engineering UI (FTUI), Nabila
Astari (Mechanical Engineering 2013) and Stephanie Rawi (Mechanical Engineering 2013)
successfully created “Droplock Turnstile Gate”. The innovation is able to converse the
wasted energy from the turnstile rotation at Transjakarta stop to be electrical energy that is
able to support the stop energy needs.
By their brilliant idea, Nabila and Stephanie that is incorporated in UI Scarf Team,
successfully got The Runner Up predicate in Go Green City Schneider Electric 2016
Competition in Paris on September 22 nd 2016 as Indonesia representation.
They got the idea from watching the activity that happen after Transjakarta passangers tap
their access card while entering the Transjakarta stop. When they pass the turnstile, the
rolling movement of turnstile produces energy. The produced energy then be used by the
two students of UI to be conversed to electrical energy.
“We created a medium-sized box that contains mechanical system to optimize the
electrical revenue. The mechanical system is connected and placed inside of turnstile so
that it produces energy for generator and converses it to be electrical energy,” said Astari.
“We already do the calculation. If this instrument is implemented, it could produces
electricity up to 15 kwh per day.” added her. Thus, the electricity will be able to provide the
electricity that is needed by the card reader. The rest of the energy that is produced will
also be able to provide electricity for charging spot, television, lamps, as well as to provide
electricity for the whole stop.
UI Scraft Team successfully surpassed Holoenergy Team from Brazil who got third rank.
While Anemoi Team from Germany got the first rank. Before off to the world level, Astari
and Rawi successfully had won on the national and Asia level by surpassed 9 team from
Korea, Japan, Taiwan, Thailand, Vietnam, Philippines, Singapore, Malaysia and Myanmar.
The winning key of UI Scraft Team was on the originality of idea, fulfilling eco-friendly
element, and the readiness of the device to be applied to the turnstile at all TransJakarta
stops. According to Astari, their team has applied cooperation agreement with
TransJakarta and they were welcome with the idea. This device not only can be used at
TransJakarta stop, but also at other public service area that use turnstile, such as train
station and tourist attraction.
She hoped that in the future, there will be further research on this device so that it will be
more efficient and could be massively produced and be distributed to all over Indonesia,
even to all over the world.
