Re: electricity from a gym: quick calcs

Rene Tschaggelar wrote:
mrdarrett@xxxxxxxxx wrote:

I had a conversation with a co-worker about harnessing energy from
folks dancing on a dance club, and from folks walking in a mall during
the shopping season. I was skeptical, thinking the capital costs
would outweigh any benefit, but decided to run the calcs just to be
fair.

I was *sure* I'd posted similar calcs on sci.physics or sci.chem a few
years ago, but can't find them. So, I re-derived them.

Let's say we have a gym with 100 pieces of equipment, with generators
on each of them. And let's also say the gym is open 24 hours a day,
fully packed at all times.

Let's say each person exercises at a rate of 100 W (pretty hard work),
or 0.1 kW.



Wrong to start with. 100W is our standby dissipation. Driving a generator with 300W continous is doable, 500W continous will be hard.

Accordding to this link, 75 watts is sustainable on average:
http://www.humboldt.edu/~ccat/pedalpower/hec/hpeg/index.html

Where did you get yoyr 300 watt figure?

Ed
.

Relevant Pages

  • Re: electricity from a gym: quick calcs
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  • Re: electricity from a gym: quick calcs
    ... folks dancing on a dance club, and from folks walking in a mall during ... Let's say we have a gym with 100 pieces of equipment, with generators ... 75 watts is sustainable on average: ... lamps. ...
    (sci.electronics.design)
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