STEORN DEMO LIVE & STREAM in Dublin, December 15th, 10 AM

[teslaalset]

I'm no excel wizard I can only analyze and graph existing formulas, not change them. I have averaged power input and output from your excel file both for 1 ohm and 5 ohm. And the COP is respectively 0.23 and 0.59. which is strange because in my Mathematica report it's always pretty much unity.

Are you sure you current phase is correct?
In this result is contrary to what you indicated yesterday.

[broli]

In fact, we're not interested what happens with energy in between the period. As can be seen, within one period the energy which we designate as Ein is in fact fluctuating and while at times within the period more energy is spent at other times within the period some of it is returned. The energy out on the other hand should always be a gain and the fluctuations in it would only be due to the fluctuations in current. Therefore, the comparisons should always be made at the end of full periods.

I need to crawl back in my cave for a while as things are getting fuzzy. For me the average of power ie energy dissipation per second is a very straightforward quantity. Calculating energy and then getting the slope is for me an unnecessary work around in a continuous system. I have to think about the points you and teslaalset raised. So I'll use some time to think about it until you can share your experimental data.

[Omnibus]

Are you sure you current phase is correct?
In this result is contrary to what you indicated yesterday.

It isn't but, recall, @broli indicated that changing phase won't make any difference. Haven't checked it myself but methodologically it would be good to always have the current leading. Take a look at my sims, the phase shift there is correct.

[broli]

Are you sure you current phase is correct?
In this result is contrary to what you indicated yesterday.

Yes that one is wrong, if you look careful I substracted the phase angle in the current equation for some reason, I should have added it. Don't know what I was thinking when I flipped the sign. Another reason why I need some time out.

But as omnibus just pointed out it doesn't change the end results.

[Omnibus]

@broli,

For me the average of power ie energy dissipation per second is a very straightforward quantity.

That's OK as long as you really have power. Integral over time of IV or of I^2R for that matter is energy, however. That's the energy at the end of the time period you've chosen to integrate over. Would be interesting to ascertain in your sim what constitutes a time interval for a full cycle and then compare the energies (the values of the integrals) at the end of this period.