NON-RECUPERATED SUPERCRITICAL CARBON-DIOXIDE BRAYTON CYCLE HEATING FOR LIQUID NATURAL GAS-POWERED ENGINES

Abstract: systems and methods for combusting liquid natural gas (lng) for use in turbofan engines in aircraft are disclosed. various components use a non-recuperated supercritical carbon dioxide (sco) brayton cycle by the scoextracting heat from a heat exchanger through which flows primary exhaust of a gas turbine engine. the scois split into dual streams. one stream flows through a scoturbine which turns a shaft coupled to a gearbox for performing useful work. the other stream is equalized in pressure and is recombined with the stream from the scoturbine. the recombined stream flows through an evaporator in the fuel injection system, which converts lng to gaseous natural gas (gng) suitable for combustion.

Inventor(s): Mingxuan Shi, Htet Htet Nwe OoMandzak, Sho Sato

CPC Classification: F02C3/22 (GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines ; jet-propulsion plants ; construction of compressors or fans ; generating combustion products of high pressure or high velocity ; using gas turbines in compression refrigeration plants ))

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