Abstract: A super critical water oxidation reactor (SCWOR) serves as an extremely efficient power source in a power plant by coupling the various output streams in thermal communication with multiply staged or cascaded compressor-expanders that are themselves mechanically coupled to a motor or generator. In one embodiment heat from re-circulating liquid brine loop either directly or indirectly preheats the exhaust gases of the SCWOR prior to expansion. In another embodiment the heat of compression is used to preheat the effluent of an expander prior to a subsequent expansion stage. The re-circulating brine loop also preferably preheats expander effluent prior to a subsequent expansion stage.

Abstract: A marine propulsion system emulates the fishes swimming motion yet is highly maneuverable as it permits changes from forward to reverse motion while underway. In other aspects, the propulsion system may be designed and optimized for efficient human powered propulsion.

Abstract: The invention relates to an improved apparatus and method for initiating and sustaining an oxidation reaction. A fuel, such as natural gas or hazardous waste, is introduced into a reaction zone within a pressurized containment vessel. A permeable liner is placed within the containment vessel and around the reaction zone. An oxidizer, preferably oxygen, is mixed with a carrier fluid, such as water, and the mixture is heated and pressurized to supercritical conditions of temperature and pressure. The supercritical oxidizer-carrier mix is introduced to the reaction zone gradually and uniformly, over a comparatively large area, by forcing it radially inward through the permeable liner and toward the reaction zone. A means and method for cooling the exhausted by-products and using them as a cleansing rinse are disclosed.