This is as good of a post that can describe in as simple a fashion as possible how the E-cat may work. It depends upon one of the many theories that attempts to explain cold fusion. Frankly, I like the BECNF theory a bit better. Why?
Simple, really. I read about Bose Einstein condensates many years ago. I think it is fair to say that you favor that which you are most familiar. I am not familiar with Stremmenos' theory. It is as simple as that. It would be incorrect to say that I think one theory is better than another. I do not know the answer to that question.
It is, after all, a post that I categorize as "armchair physics". Not professional. I make no such claims. It is an attempt by yours truly to understand something that is difficult, and to try to discuss it in an intelligent manner. Hopefully, I don't botch it too badly.
Now, for Stremmenos' theory. Again, not trying to botch it too badly, so here goes a little ditty on that.
There is such a thing as muon catalyzed fusion. Muons exist and are, for want of a better explanation, are like "heavy" electrons. They are negatively charged, like electrons, but aren't electrons. So, they can balance out the electrical charge of a proton, which is the nucleus of a hydrogen atom. The heaviness of the muon shrinks the size of the hydrogen atom. It then becomes something like Stremmenos' mini atom. The mini atom (muon proton combo) tunnels through the Coulomb barrier and fuses with the nucleus. Ta da! You have fusion. That's muon catalyzed fusion.
But Stremmenos doesn't depend upon muons, but some other mechanism for making mini atoms. Let's look at a quote from that post:
it is conceivable that, for a very short time period (e.g. 10ˆ-18 sec), a series of neutral mini atoms of hydrogen could be formed, in an unstable state, of various size and energy level, distributed within the Fermi band, which is enlarged due to the very short time (Heisenberg).
The neutral mini-atoms of high energy and very short wave length – which is in phase with the “cyclic” orbit (de Broglie) – are statistically captured be the nickel nuclei of the crystal structure with the speed of nuclear reactions (10ˆ-20 sec).
It appears that the mini atoms can exist for a long enough period to be captured. That's because 10 -18 is a bigger number than 10 -20 . The mini atoms exist long enough for the nuclear reaction to take place. I think that may be the key understanding here. That is, if I didn't botch it.
You get steam heat from that reaction