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If we say that CC burns about 2000 calories/day, and that turning a screw hand-tight is about 1 Nm of torque, then, at 30 RPM, turning her key would produce 3.14 Watts of power, for which one hour would produce 0.00314 kWh, and one day 0.0754 kWh.
2000 kCal is equal to 2.324 kWh, so 2.324 / 0.0754 = a scale factor requirement of 30.82, and adjusting the first estimate, 30 RPM x 30.82 = 924.6 RPM, so her daily requirement for winding is about 1,331,424 turns per day at a continuous 924.6 RPM or, about 5 times faster than a ceiling fan / around the idling speed of a car.
can anyone double check my numbers?
