A power production system includes a flue gas generator configured to generate a flue gas that includes carbon dioxide and oxygen; a fuel supply; a fuel cell assembly that includes: a cathode section configured to receive the flue gas generated by the flue gas generator, and output cathode exhaust, and an anode section configured to receive fuel from the fuel supply, and output anode exhaust that contains hydrogen and carbon dioxide; a methanator configured to receive the anode exhaust, convert at least a portion of the hydrogen in the anode exhaust to methane, and output methanated anode exhaust; a chiller assembly configured to cool the methanated anode exhaust to a predetermined temperature so as to liquefy carbon dioxide in the methanated anode exhaust; and a gas separation assembly configured to receive the cooled methanated anode exhaust and separate the liquefied carbon dioxide from residual fuel gas.

Methods and systems of power generation that integrate SCO.sub.2 Brayton and Rankin steam power cycles with fossil fuel combustion, One such method involves combusting a fuel material with an oxidizer material in a combustor to produce heat and a combustion exhaust. At least a portion of the combustion exhaust and a first portion of heat produced by the combustion processing are fed to a SCO.sub.2 Brayton power cycle to produce power and a second exhaust. At least a portion of the second exhaust and a second portion of heat produced by the combustion processing are feed to a steam Rankine power cycle to produce additional power and a third exhaust.

The present disclosure relates to a power generation system and related methods that use supercritical fluids, whereby a portion of the supercritical fluid is recuperated.

A regulation system to regulate the flow rate of a hot air duct which comprises a shutter, an upstream air intake, a downstream air intake, a regulator and an actuator of the shutter with a first inlet connected to an outlet of the regulator and a cooling system comprising an outer radiator, a housing and a heat pipe housed in the housing and discharging the heat between the housing and the outer radiator, wherein the air streams coming from the upstream air intake and from the downstream air intake pass through the housing. Such a regulation system allows a better discharging of the heat by the action of the heat pipes.

A regulation system to regulate the flow rate of a hot air duct which comprises a shutter, an upstream air intake, a downstream air intake, a regulator and an actuator of the shutter with a first inlet connected to an outlet of the regulator and a cooling system comprising an outer radiator, a housing and a heat pipe housed in the housing and discharging the heat between the housing and the outer radiator, wherein the air streams coming from the upstream air intake and from the downstream air intake pass through the housing. Such a regulation system allows a better discharging of the heat by the action of the heat pipes.

The present disclosure relates to a novel gas turbine system having applications, for example, in thermal power generation in an environmentally friendly manner. The multiloop gas turbine system may have multiple functional units each comprising a compressor, a regenerator, a combustion unit, and a turbine. Typically, exhaust flow of a turbine of a preceding loop may be routed to the combustion unit of the next loop, allowing mixing of exhaust flow with hot compressed air of the next loop, and the expanded exhaust from the turbine of the ultimate loop is fed back into the regenerators of each loop to recover exhaust heat.

Cogeneration system (200, 300) comprising: a boiler (201, 301) able to heat water for domestic use; a combustor (201a, 301a) placed into the boiler; a compressor (204, 304); a heat exchanger (202, 302) for the exchange of thermal energy between the combustion fumes generated in the combustor (201a, 301a) and a fluid coming from the compressor (204, 304); a gas turbine (203, 303); a current generator (205, 305) and a current converter (206, 306) able to produce electrical energy; a main fumes/water exchanger (207, 307) able to recover thermal energy. The cogeneration system (200, 300) comprises also a by-pass valve (210, 310) configured to adjust the flow of fluid entering the gas turbine (203, 303).

The present disclosure provides systems and methods for power production. In particular, the systems and methods utilize the addition of heat to an expanded turbine exhaust stream in order to increase the available quantity of heat for recuperation and use therein for heating a compressed carbon dioxide stream for recycle back to a combustor of the power production system and method.

A gaseous compression system for compressing a gas from an initial pressure to an exit pressure with a first, blower compression bank and a second, mechanical compression bank. Each compression bank has plural stages of gaseous compression with a gaseous fluid compressor and a heat pump intercooler. The heat pump intercooler comprises a cascading heat pump intercooler with a high temperature section, a medium temperature section, and a low temperature section, each temperature section with an intercooler core. Each stage of the blower compression bank has a high-pressure blower, and each stage of the mechanical compressor bank has a mechanical compressor. A final stage of gaseous compression is without a heat pump intercooler. Gas compressed by the gaseous fluid compression system can be injected into a gas-driven generator to generate electric power from movement of a working fluid induced by injection of the compressed gas.

A gaseous compression system for compressing a gas from an initial pressure to an exit pressure with a first, blower compression bank and a second, mechanical compression bank. Each compression bank has plural stages of gaseous compression with a gaseous fluid compressor and a heat pump intercooler. The heat pump intercooler comprises a cascading heat pump intercooler with a high temperature section, a medium temperature section, and a low temperature section, each temperature section with an intercooler core. Each stage of the blower compression bank has a high-pressure blower, and each stage of the mechanical compressor bank has a mechanical compressor. A final stage of gaseous compression is without a heat pump intercooler. Gas compressed by the gaseous fluid compression system can be injected into a gas-driven generator to generate electric power from movement of a working fluid induced by injection of the compressed gas.