Andrew <andrew...@att.net> wrote: ** > There are 3 cases: > > 1. Pulse ON state, 35% of the time. COP=1 during this time >
No, it is probably higher, but it cannot be measured with certainty because we do not know the recovery rate. (This is not a calorimeter.) > 2. Pulse OFF state, 65% of the time. COP > 1 during this time > Output increases at first and then falls. > 3. Dummy, power ON 100% of the time. COP = 1. > No, it is never 1. It cannot be. All real devices that do not produce energy (such as electric motors) always produce a COP of less than 1. They estimate they are recovering all but 58 W during the dummy run, which with 910 W input. So that is a COP of 0.93, which is pretty good. But not 1. - Jed
