Ufo propu engine, closed loop

[ltseung888]

Some Experimental results to share on Dec 13, 2015

The experiment was done at the home of Lawrence Tseung.  Mr. TS Lau also participated.  The equipment used was:
1.  DC Power supplied that can go up to 30V.  17.5V was used.
2.  Atten Oscilloscope was used to display waveform.
3.  3 magnets on end of PVC with total length 11 cm used.
4.  Rubber band wrapped around transparent tube to show maximum height reached.
5.  Solenoid has approximately200 turns with resistance measured at 5.4 ohms

Some preliminary results are:
1.  Height jumped was 49.2cm  (60.2 - 11)
2.  Actual height jumped could vary from 46 to 55 cm.  Cold solenoid allowed higher jumping.
3.  Resistance of solenoid could vary from 4.2 to 5.4 ohms.  Cold solenoid showed lower resistance.

YouTube video available at: https://www.youtube.com/watch?v=IkgzfbVI8x0

[ltseung888]

Now we show the waveform with the voltage across the solenoid.  No other resistor was put into the circuit.  Some unavoidable resistance due to clip and wire connections would be present.  That probably accounted for the setting of 17.5V on the DC Power Supply and the 15V on the DSO.

The time pressed on the switch obviously varied from experiment to experiment.  From the shape of the waveform, that time was around 32ms in the display.

The most interesting part is the expanded waveform of the leading edge of the pulse.  The voltage rose to 35V and immediately followed by a negative 16V.  This is the expected back emf due to the inductance of the solenoid.

The controversial part was the time period of the Input.  Should we use 32ms or 2.7ms.  That factor would determine whether we achieved overunity or not.

I shall pause here for comments.

[ltseung888]

I believe I have found a scientific way of estimating the magnetic repulsion time.

I assume that the first 10 cm of jump height is significant.  I then use the free fall equations to calculate the time to fall 50 cm (t1) and the time to fall 40 cm (t2).  The difference (t1-t2) can be approximated to the magnetic repulsion time.

The Physics assumption is that as soon as the magnet passes the 10 cm height, the force acting on it to slow it down to zero velocity is gravity. 

Please see the extract from the spreadsheet.  The values of h1 and h2 can be adjusted for any experimental results.  Thus we can estimate the magnetic repulsion time (t1-t2).  If this assumption is valid, we have good grounds to calculate whether our experimental setup is overunity.

Pease feel free to comment.

[ltseung888]

The Input Electrical Energy Analysis.

The resistance of the coil + connecting wire as measured = 5.4 ohms.

The Pulse duration for magnet repulsion estimated at 3ms

Average Voltage during the Pulse = 3V

[ltseung888]

The preliminary calculation:

Output Energy = mgh

= 0.082 * 9.8 * 0.492
= 0.05 (joules)

Input Energy = V*V/R*t

= 3*3/5.4*0.03
= 0.39 (joules)

COP = Output/Input = 7.88