Pedal-powered kettle

11 people on bike generators pedalling to boil 1 cup of water with a 1kW kettle.
Circuit includes 58F ultra-capacitor to smooth voltage and 1kW inverter with low-voltage warning which is audible throughout most of test.
Filmed by Paul Jenkins who also had to pedal because we were short of cyclists.

Category:

Science & Technology

Tags:

• pedal
• power
• bike
• generator
• kettle
• tea
• human
• green
• energy
• electricity
• coffee
• hot
• boiling
• water
• electric
• pedals
• dynamo

[VictorMartinsPT]

Awesome work :)

It's really hard do boil water.

I'm doing a PPPM myself using david butchers plans, I will try the electric parts today :)

Can't wait :D:D

[electricpedals]

Yeah it is really hard work! And that was only a 1kw kettle we were using!

[electricpedals]

Good luck with the test, if you film it please post a reply video. Colin.

[1crazyfocker]

wow what a waste of energy, you do know that only one person could have done that in less then a minute. like most ppl you try to work around 220 or 110 VAC, instead of useing an electric kettle, a simple dead short of AC would have boiled a cup of water in less then a minute. i am able to light my whole house and have cieling fans in each room, and run all of them for 3 days off just one 100AH 12VDC car battery, How? I dont use inverters and wasteful CFB. or any transformers.

[schpoingle]

lol... the definition of a calorie is the energy needed to increase the temperature of 1 kilogram of water by 1 °C

yeah..no wonder it takes so much human power. but then watch a fresnel lens boil a cup of water...

[kdc43]

What's the mechanical input in watts or HP?

What's the system efficiency? About 50%?

Actual power to the 1 KW kettle? About 500 Watts?

5 min seems like a long time to boil 8 oz of water.

Ever try 11 Pro cyclists generating 6 HP at the pedals?

At 50 % EFF that's 3 HP or 2.2 KW at the kettle.

Get a more powerful kettle, maybe 1-2 min to boil!

[trailkeeper]

Green energy Starbucks.

[rugshort]

The human race is fooked.