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

摘要

A combustor apparatus (220) is provided, comprising a mixing arrangement (250) for mixing a carbonaceous fuel with enriched oxygen and a working fluid to form a fuel mixture. A combustion chamber (222) is at least partially defined by a porous perimetric transpiration member (230), at least partially surrounded by a pressure containment member (338). The combustion chamber has longitudinally spaced apart inlet and outlet portions (222A, 222B). The fuel mixture is received by the inlet portion (222A) for combustion within the combustion chamber at a combustion temperature to form a combustion product. The combustion chamber (222) further directs the combustion product longitudinally toward the outlet (222B) portion. The porous transpiration member (230) is configured to substantially uniformly direct a transpiration substance therethrough, about the perimeter thereof defining the combustion chamber and longitudinally between the inlet and outlet portions, toward the combustion chamber for buffering interaction between the combustion product and the porous transpiration member. Associated systems are also provided.