Richard J Kinch wrote:
Lloyd E. Sponenburgh writes:
Since that represents only about 50 BTUs it shouldn't
take that much muscle in a properly engineered device.
Richard, that would be roughly 1/4HP for five minutes.
1 KWH can pump 10,000 BTU in a 10 SEER heat pump. If we equate 746 watts to
1 HP, then you get 7460 BTUs pumped with 1 HP-hour. So pumping 50 BTUs
would take 50/7460 = 0.0067 HP-hour. That's about 0.08 HP for 5 minutes.
But who knows what efficiency you could build in that size. And how
thirsty you are for a cold one.
300W continous out of the legs of a trained cyclist is a reasonable number.
56W hand cranking seems a bit ambitious.
I got it, bar stool with pedals
Wes