An aircraft propulsion system includes a condenser at least partially disposed within the core flow path where water is extracted from the exhaust gas flow, an evaporator system that is at least partially disposed within the core flow path upstream of the condenser where thermal energy from the exhaust gas flow is utilized to generate a steam flow from at least a portion of water that is extracted by the condenser. Steam within the exhaust gas flow is concentrated into a portion of the exhaust gas flow that is communicated through the condenser.

A method and system for modulating vapor and liquid fractions of a cycling liquid-vapor fluid operating within its phase transition envelope by creating forced oscillating heat transfer between liquid and vapor fractions of the cycling stream. A liquid stream segment is expansion cooled and brought into thermal communication with a vapor stream segment. The contact with the expansion-cooled liquid enables intermolecular forces to drive condensation and release condensation heat at a condensation temperature higher than the temperature of the expansion-cooled stream segment. The resulting temperature gradient enables the expansion-cooled segment held at constant volume to capture the condensation heat and isochorically vaporize into a vapor stream segment that again is forced to condense so as to form an oscillating thermal cycle within the cycling liquid-vapor fluid.

A method and system for modulating vapor and liquid fractions of a cycling liquid-vapor fluid operating within its phase transition envelope by creating forced oscillating heat transfer between liquid and vapor fractions of the cycling stream. A liquid stream segment is expansion cooled and brought into thermal communication with a vapor stream segment. The contact with the expansion- cooled liquid enables intermolecular forces to drive condensation and release condensation heat at a condensation temperature higher than the temperature of the expansion-cooled stream segment. The resulting temperature gradient enables the expansion-cooled segment held at constant volume to capture the condensation heat and isochorically vaporize into a vapor stream segment that again is forced to condense so as to form an oscillating thermal cycle within the cycling liquid-vapor fluid

A system and method are provided for storing and recovering electricity generated from conventional/renewable energy sources. A thermal energy storage vessel contains thermal storage fluid (TSF) comprising a eutectic ternary nitrate molten salt, induction heating elements, turbine pumps, a heat exchanger, and various data acquisition sensors like thermocouples and thermistors. The immersion heating elements receive the electricity generated from conventional and/or renewable energy source to heat the eutectic ternary nitrate molten salt to the desired temperature. Coiled tubing is deployed within the thermal containment vessel to be distribution systems for the power cycle working gas and heat exchange for the power cycle working gas. The power cycle working gas is delivered under pressure to a steam turbine or a gas turbine or industrial heat. The turbine converts the energy into mechanical shaft work to drive an electricity generator to produce electricity. The steam exhaust is gathered by a compressor and returned to the thermal energy storage vessel.

A system and method are provided for storing and recovering electricity generated from conventional/renewable energy sources. A thermal energy storage vessel contains thermal storage fluid (TSF) comprising a eutectic ternary nitrate molten salt, induction heating elements, turbine pumps, a heat exchanger, and various data acquisition sensors like thermocouples and thermistors. The immersion heating elements receive the electricity generated from conventional and/or renewable energy source to heat the eutectic ternary nitrate molten salt to the desired temperature. Coiled tubing is deployed within the thermal containment vessel to be distribution systems for the power cycle working gas and heat exchange for the power cycle working gas. The power cycle working gas is delivered under pressure to a steam turbine or a gas turbine or industrial heat. The turbine converts the energy into mechanical shaft work to drive an electricity generator to produce electricity. The steam exhaust is gathered by a compressor and returned to the thermal energy storage vessel.

The cyclic steam engine is a device that is intended to provide users with an increased efficiency heat engine. More specifically, the device is a heat engine that captures and uses waste heat to increase its thermal efficiency. To accomplish this, the device includes a steam engine and a boiler with an exhaust chamber, wherein waste heat and steam collected in the exhaust chamber form the engine are recycled into the boiler. In other words, the heat dissipated from the steam engine is recovered, re-circulated and re-used, thereby increasing the thermal efficiency of the cyclic steam engine. The device further includes unidirectional valves, and pressure gauges that ensure that waste heat is circulated under correct pressures and thermodynamic conditions. Thus, the device provides users with the right conditions and components with a cyclic steam engine that has increased efficiency than the maximum theoretical efficiency of a heat engine.

The cyclic steam engine is a device that is intended to provide users with an increased efficiency heat engine. More specifically, the device is a heat engine that captures and uses waste heat to increase its thermal efficiency. To accomplish this, the device includes a steam engine and a boiler with an exhaust chamber, wherein waste heat and steam collected in the exhaust chamber form the engine are recycled into the boiler. In other words, the heat dissipated from the steam engine is recovered, re-circulated and re-used, thereby increasing the thermal efficiency of the cyclic steam engine. The device further includes unidirectional valves, and pressure gauges that ensure that waste heat is circulated under correct pressures and thermodynamic conditions. Thus, the device provides users with the right conditions and components with a cyclic steam engine that has increased efficiency than the maximum theoretical efficiency of a heat engine.