Right you are, David. I always told my physics students that humans are
rated at about 120 W for men and 80 W for women.
For a man, a 10 MJ/d diet is about right. That works out to an energy
intake rate of about 115.8 J/s or nearly 116 W. That's also
approximately the heat dissipation rate for men. I've seen programs that
calculate air conditioning loads and they usually figure about 100 W per
occupant. In other words, a person is like a 100 W heater that is on all
the time. So if you want to air condition classrooms, etc., you have to
allow for people as well as heat intrusion from outside, heat output by
lights, etc.
I think that Jesse meant to write "human energy intake rate" instead of
"human energy intake", since power is a rate of energy transfer. He just
dropped a simple but important word there.
Jim
David King wrote:
Energy is measured in joules, power in watts.
David King
/Metric is British and best!/ Speak in English, Measure in Metric
Ziser, Jesse wrote:
That data left out something I think is a cool metric factoid: a healthy adult
human energy intake
is around 100 watts average. That just blows my mind. To use no more average
power than a light
bulb, we must be phenomenally efficient. Ain't nature cool?
--- Stan Jakuba <[EMAIL PROTECTED]> wrote:
I came across data from Scientific American mag. that ad light to the
distinction in measuring
power and energy by showing when to resort to one or the other.
Stan J.
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