Hi Peter,
Just wanted to ask where is the pulse output in the schematics and your explanation clarifies it now, thanks.
I would like to propose a probably simple measurement method for getting a definite answer whether this setup has a COP >1 or not.
It would be based on temperature measurements under a certain time duration,
first without the flyback diode than with the flyback diode in place.
The wire resistor would be immersed into a cooking oil bath of say half a litre (or less, depending on the size of the wire resistor) and at first you would run the setup without any flyback diode to heat up the cooking oil bath from the ambient to a certain higher temperature during say half an hour and log the temperature on a thermometer (and measure the time with a digital watch).
Then you would switch off the setup, connect the flyback diode(s), wait for cooling down for the oil to ambient, then start the setup again by running the circuit for exactly half an hour and log the temperature again.
Now comparing the two temperatures, in case of COP>1 the temperature of the oil in the second run (when the flyback diode(s) are in place) should be higher than in the first run without the diode(s). Agree with this?
EDIT: a addition, in case of COP>1, the temperature of cooking oil in the second run should reach the temperature of the first run during less time (less than in half an hour in my example).
No need for using a battery to run the whole setup, a power supply should serve for the purpose. (Maybe Aaron will oppose this but I think of your circuit shown with the separating diode towards the source battery).
Also, one can use two identical oil bath from two identical glass jars/plates etc with equal amount of cooking oil fills if you do not wish to wait for cooling down the oil after the first run.
This test would simply demonstrate the COP>1 capability of this setup for those doubting it. The only 'dirty' part is your wire resistor will be oily..
rgds, Gyula
Just wanted to ask where is the pulse output in the schematics and your explanation clarifies it now, thanks.
I would like to propose a probably simple measurement method for getting a definite answer whether this setup has a COP >1 or not.
It would be based on temperature measurements under a certain time duration,
first without the flyback diode than with the flyback diode in place.
The wire resistor would be immersed into a cooking oil bath of say half a litre (or less, depending on the size of the wire resistor) and at first you would run the setup without any flyback diode to heat up the cooking oil bath from the ambient to a certain higher temperature during say half an hour and log the temperature on a thermometer (and measure the time with a digital watch).
Then you would switch off the setup, connect the flyback diode(s), wait for cooling down for the oil to ambient, then start the setup again by running the circuit for exactly half an hour and log the temperature again.
Now comparing the two temperatures, in case of COP>1 the temperature of the oil in the second run (when the flyback diode(s) are in place) should be higher than in the first run without the diode(s). Agree with this?
EDIT: a addition, in case of COP>1, the temperature of cooking oil in the second run should reach the temperature of the first run during less time (less than in half an hour in my example).
No need for using a battery to run the whole setup, a power supply should serve for the purpose. (Maybe Aaron will oppose this but I think of your circuit shown with the separating diode towards the source battery).
Also, one can use two identical oil bath from two identical glass jars/plates etc with equal amount of cooking oil fills if you do not wish to wait for cooling down the oil after the first run.
This test would simply demonstrate the COP>1 capability of this setup for those doubting it. The only 'dirty' part is your wire resistor will be oily..
rgds, Gyula
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