Apparatus and method for combusting a fuel at high pressure and high temperature, and associated system and device

An energy generation system, comprising:

• a combustor apparatus, including:
• a mixing arrangement configured to mix a carbonaceous fuel with enriched oxygen and a working fluid from a working fluid source to form a fuel mixture;
• and
• a combustion chamber defined by a porous wall of an inner transpiration member of a porous material, the inner transpiration member being at least partially surrounded by a pressure containment member defining second transpiration fluid supply passages, the inner transpiration member defining the combustion chamber further being substantially cylindrical and having an inlet portion and an opposing outlet portion, the inlet portion of the combustion chamber being configured to receive the fuel mixture for the fuel mixture to be combusted within the combustion chamber at a combustion temperature to form a combustion product, and the inner transpiration member being configured to direct the combustion product along the cylindrical combustion chamber toward the outlet portion, the inner transpiration member further being surrounded by an outer transpiration member disposed between the inner transpiration member and the pressure containment member, the outer transpiration member defining first transpiration fluid supply passages extending therethrough to the inner transpiration member, and the first and second transpiration fluid passages being configured to cooperate to direct a transpiration substance therethrough to the inner transpiration member, the inner transpiration member thereby being configured to receive the transpiration substance externally to the combustion chamber and to direct the transpiration substance about and through a circumference of the porous wall thereof defining the combustion chamber, toward and into the combustion chamber, such that the transpiration substance entering the combustion chamber about the circumference of the porous wall forms a buffer layer immediately adjacent to and about the circumference of the porous wall within the cylindrical combustion chamber, the buffer layer, formed by directing the transpiration substance radially inward from about the circumference of the porous wall within the cylindrical combustion chamber, being configured to buffer interaction between the porous wall and the liquefied incombustible elements and heat associated with the combustion product in the combustion chamber, the transpiration substance and the working fluid each comprising a supercritical carbon dioxide fluid from the working fluid source;
• a transformation apparatus configured to receive the combustion product, the transformation apparatus being responsive to the combustion product to transform energy associated therewith into kinetic energy;
• and
• a separator apparatus disposed between the combustor apparatus and the transformation apparatus, the separator apparatus being configured to substantially remove liquefied incombustible elements from the combustion product received thereby prior to the combustion product being directed to the transformation apparatus.