The microscopic photos of Rossi’s nickel particles were very revealing. These pictures show a mix of burnt-out particles and still functional particles. IMHO, because Rossi is running his reactor at a very high temperature, his particles have a definite half-life based on the operational temperature that the reactor runs at. Rossi can judge the runtime of his reactor based on the temperature that the reactor will operate at and the amount of particles he uses in the fuel charge.
This makes commercial sense since his customers will be forced to recharge the E-Cat on a predictable timescale. Each recharge means money in the pocket of Industrial heat. This is one reason that Rossi has developed a hot running reactor near the melting point of nickel.
