Thermal power production device utilizing nanoscale confinement

Disclosed herein is a device for generating thermal energy through a nuclear transmutation reaction when a hydrogen containing fuel comes into contact with a nanotube containing element in a reaction vessel for containing the nuclear transmutation reaction. The device further includes an energy absorption vessel containing an energy absorption fluid that absorbs energetic particles resulting from the transmutation reaction and a heat transfer system for transferring thermal energy of the energy absorption fluid to a working fluid, such as water. A method of generating power using such a device is also disclosed.