If I had a million bucks, I’d create a LENR experimental array, with perhaps 100 canisters that could be independently controlled for gas ingredients, total and partial pressures, temperatures, and rates of change of all the above. Then I’d pop some metal samples (e.g, nickel) into each one, and tune each one to a different point in a wide range of multidimensional variable values.
If any one of them got hotter than would be predicted from the input energy, I’d get another million and start a new experiment, with a hundred more canisters having environmental values scattered around the values in the hot one. I’d cherry pick the best from that experiment and start new experiments with variations around those values. And so on.
This should quickly focus in on effective gas and temperature environments for LENR. If the hot fusion lobby hadn’t united to prevent funding for “cold fusion”, we’d be there now.
I have been interested in so called ‘cold fusion’ since my courses in science particularly physical chemistry at UC Berkeley. What intrigued me was a chart/graph showing the relation between the bombs, Hiroshima and Nagasaki were just a fey years past. What was intriguing was the showing of ‘potential nuclear’ energy from Uranium/plutonium through the elements to hydrogen in particular. All noted elements had a level of such energy. It seemed to me that some of these middle elements might also just need a ‘key’ to unlock this low level energy. As such ‘cold fusion’ is very interesting to me.
Actually, this is the approach that successful investigators of LENR have pursued. It isn't "100 canisters", as in the past most people were working the Pons/Fleischmann electrolysis Pd/D2 systems, so the individual reactors are a bit pricey. They "have" done them in batches of 10. The researchers (several different) used this method to prove experimentally that the major overall reaction pathway in Pd/D2 was:
2D2 ----> He4
And that the heat yield per nucleon was very near to the theoretically predicted value of 24MEV/nucleon.
Precisely your approach has been suggested for "gas-loaded" systems (both Pd/D2 and Ni/H) on the Vortex-L mailing list. I suspect there are people out there doing precisely that