ENGINE USING HEATED AND TURBO-EXPANDED AMMONIA FUEL

An energy extraction system according to an exemplary embodiment of this disclosure, among other possible things includes an ammonia fuel storage tank assembly (34) that is configured to store a liquid ammonia fuel, a thermal transfer assembly (38) that is configured to transform the liquid ammonia fuel into a vaporized ammonia based fuel, a turbo-expander (40) that is configured to expand the vaporized ammonia based fuel to extract work, and an energy conversion device that is configured to use the vaporized ammonia based fuel from the turbo-expander (40) to generate a work output.