MRI researcher helps develop rollercoaster which charges your phone

11 April 2018

Dr Joe Briscoe
Dr Joe Briscoe
A researcher from Queen Mary University of London has used his expertise in energy harvesting applications to help develop a rollercoaster which charges your phone.

Dr Joe Briscoe, from the Materials Research Institute, was approached by THORPE PARK Resort to work on their latest ride ‘The Walking Dead: The Ride’ which opened over Easter.

He helped to install piezoelectric energy harvesting technology on the rollercoaster, which transforms kinetic energy from the ride into battery power for the users’ mobile phones when they are placed into a charging unit. A piezoelectric material generates a voltage when bent, stretched or compressed, hence it can convert a range of movement and vibrations into electrical energy.

Kinetic energy includes everything from the g-force and vibrations of the ride to the screams of the users. The devices fitted on to the train’s carriages capture this energy before converting into electrical energy, which is stored in a power management unit throughout the day. This unit is then removed from the carriages by staff and deposited into the on-site mobile charging point, allowing guests to charge their mobile phone.

During the 90-second ride, which is now the UK’s only rollercoaster that uses energy harvesting technology in this way, some of the power is also used to light up red LEDs on the devices to demonstrate the energy being harvested.

An exciting concept
Joe said: “Using vibrations and movement from the ride has allowed us to harness the stray energy that is all around us. This is an exciting concept that will undoubtedly be used more frequently in the future.

“The system uses a mini energy harvester to capture the kinetic energy, transferring them to a separate electrical circuit and storage unit, which is enough to charge a mobile phone. While the harvested power levels are very low, taking some time to fully charge the units, this demonstrates that there are a wide variety of energy sources around us that is available to be harvested.

“With growing interest in installing distributed electronic devices forming an ‘Internet of Things’, the ability to harvest power sources for these, however small, will help to remove the reliance on batteries or power connections.”

The technology took three months to implement and was designed and installed by Dr Briscoe’s team including Dr Xuan Li and Theo Saunders, also from Queen Mary, along with the engineering team at THORPE PARK Resort.