Horace Heffner <hheff...@mtaonline.net> 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? >
He had small ones but I tested huge ones. They could be set to produce no excess, in which case this method recovered about 90% of the input energy, as I recall. It was tricky to make them produce excess. You could tell the thing was in the excess mode by the sound. You can see a photo a huge one here: http://hydrodynamics.com/products/large-flow-reactors/ - Jed
