> Further, the fact the data is highly variable is an indication the > hot water arrives at the heat exchanger in slugs. > > That's my take on it. > > Best regards, > > Horace Heffner
A BRILLIANT OBSERVATION !!!! The eCat's running in the same weird mode as Lewan/Sept ... at 120C 1 Bar (?) 50% fluid water out. The observation-port temperature is stable (as Rossi said) but it arrives at the exchanger in slugs. Lewan took a random sample of slug-arriving/slug-exchanging/slug-departing .. with a (probably) exponential rise and decay of Tout with each slug -- which explains the highly variable output of 3 kW to 8 kW. So the calculation of output energy from Tout is ... unusable? strange? I wonder what kind of statistics one should use to calculate the total. (I know a professional Bayesian statistician, but I'm not sure we have enough data to ask the right question.) (ps ... just back online, so there may be other responses to this that I haven't read)
