On Sep 1, 2011, at 3:39 PM, Jed Rothwell wrote:
I don't see your point. I used to do this test with a hose producing 75 kW at Hydrodynamics Inc. It worked fine. The results were close to the expected amount from that heater.
If that was a Griggs device I wonder if your memory might be failing you, like mine has been failing me. Didn't Griggs use around 7 hp motors and achieve much less than a COP of 2, more like 1.2? That would be on the order of 7.5 kW out, not 75 kW out. That must have been an unusual test. Could have used a car motor to drive it I suppose.
Best regards, Horace Heffner http://www.mtaonline.net/~hheffner/
