Russ George <[email protected]> wrote: As John Dash showed titanium is quite useful in wet cold fusion reactions, > many metals indeed work. Palladium is a very practical study material hence > the extensive work in that regard. >
Palladium seems to have high power density compared to titanium and other metals. Perhaps that is only because people have extensive experience using it. If palladium power density is inherently higher than other metals, that would make it a more practical choice. Low power density energy generation is possible. Solar power, for example. It takes up a lot of space and it is expensive. In the 19th century there were low steam pressure water pumps used to supply cities with drinking water. They lasted a long time but they took up a tremendous amount of space. A piston from one of them is preserved in the Smithsonian. As I recall, it is the size of a house. Low density energy can be useful but it is awkward. - Jed
