2015 The Swedish scientists results including the so-called Lugano experiment yields a COP of 2-3 and a power out of around 2.5kW. Actually, Thomas Clarke analyzes these results, does the math and publishes a document showing that the most probable COP is 1.0 or less and that the Swedish scientists used a wrong number for the emissivity of the hot cat.
Thomas Clarke concluded from the text of the report that the testers used the wrong emissivity and his calculated COP was a result of that.
That assumes that we can literally follow the text in the report.
Now if the testers made such a large mistake, could it then not be that they made an other mistake, being that they not did correctly write down what they did when measuring temperature with the Optris? And if that would be the case could it then not have been that they used the correct in band emissivities on the Optris after all ?
And can the MFMP dogbone thermal verification test have been wrong ?
Paradigmnoia recently reported : "The Lugano device is much more isothermal along the main tube length than the MFMP version, and has hotter caps with better heat distribution than the MFMP device". This means that the MFMP device possibly was not that equivalent to the Lugano device and we thus have to wonder if the conclusions of the MFMP where right.
There are a lot of ways you can interpret information. But stay critical and do not take conclusions of others for granted !
What the truth is I don't know.