Earth Day in SIngapore 2016
I was honored to be the Chief Engineer in Singapore for National Geographic’s Earth Day Event. You can read the article written by Elton Pang, below.
https://www.linkedin.com/pulse/national-geographic-channel-earth-day-run-elton-pang
“A truly amazing community engagement NatGeo Earth Day Run have achieved!
More than 300 cyclists participated in Singapore first ever Zero-Waste and Carbon-Neutral race event. This might sound like an impossible task to manage an event so huge with no electricity taken from the grid. To make it near impossible, we only had less than 2 months to put it together!”
“With Jonn Benedict Lu helming as Race Director and Brad Whaley as Chief Engineer, we started the build process within a week. What made the event so amazingly wonderful were the outpour, support and love we received from the community. Everyone came and contributed to the build process that enabled us to achieve our 24 hours Guinness Record attempt, movie marathon screening and powering up the event.”
“Below abstract courtesy from Jonn Lu..
"Our 300 riders generated a total of 19,872 watt hours. That’s 11,527 watts hours shy of the record. But that’s not the whole story, let me continue:
30% of our riders produced very high wattage. Around 8 to 9 cyclists out of the 27, generated power in the range of 100 - 200 sustained watts. That’s massive!!!
The other 70% averaged around 40 watts per hour. Now, one thing we need to understand about large kinetic bike-powered systems, is that they are not very efficient. We are capturing only about 40% of the energy you produce. Inefficiencies and losses come from when energy is transferred from your pedal to wheel, to the roller, to the motor, and through the very long and thick cables.
Doing the math, you guys produced close to 50,000 raw watts (49,688), while the kinetic system could only capture 40% of that, around 20,000 watts.
Hang on, there’s more:
So how do we compare our results to the HK Polytechnic’s record (31,399 WATT Hours)? To do that we need to figure out the average power produced by each of our bike stations.
We produced 736 watts per station, per hour, over 24 hours.
HK Poly Technical had 48 bike stations: that produced 654 watts each.
We produced on average 82 watts more power, per station.
If we had 48 bike stations (we had only 27), we would have beaten the Hong Kong record."