Drilling company Lesedi Drilling is involved in conversion studies, which are being conducted at a gold mine in the Free Sate, to convert compressed air diamond drilling drills to electrohydraulic ...
Researchers in China developed a new compressed air energy storage system that uses flooded roadways in abandoned coal mines to store compressed air and heat for nighttime power generation.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results