Possible heat production in some Ni-H and Ni-D systems, revised

The paper concludes two year research on the topic of the possible heat production in nickel-hydrogen (Ni-H) and nickel-deuterium (Ni-D) systems during heating that was initially announced by S Focardi, R Habel, F Piantelli and later reported by A Rossi and A G Parkhomov. The authors developed a new methodology and new testing units that could provide consistent results for the physical community due to high importance of such reports in the wake of the energy crisis. The testing units were engineered with such a design that both nonlinear heat losses (convection and radiation) during the experiment were minimized. The experimental methodology is based on the statistical hypothesis testing of the normal distribution from experimental heater power consumption data samples while the temperature is stabilized by the PID controller according to the provided experimental program. This methodology was tested by artificially supplied heat sources and sufficient accuracy was confirmed around 1.5%-3.0%. Around 50 experiments with fuel were conducted with various additional ingredients, different forms of Ni, pure hydrogen and hydrogen-deuterium mixtures according to the experiments cited above. No statistically significant levels of the heat production were found in any of the experiments, with less than 1.5% accuracy in terms of heater power consumption.