A method for isolating substantially pure carbon dioxide from flue gas is provided. The method can include combusting carbon based fuel to form flue gas; cooling the flue gas to provide substantially dry flue gas; removing N.sub.2 from the dry flue gas to provide substantially N.sub.2 free flue gas CO.sub.2; and liquifying the substantially N.sub.2 free flue gas CO.sub.2 to form substantially pure carbon dioxide.

Efficient recovery of thermal energy. An exhaust heat recovery system comprising: a plurality of gas compressors; a exhaust heat recovery equipment; and a controller, wherein further comprising a exhaust heat recovery path connecting the plurality of gas compressors and the exhaust heat recovery equipment, and the plurality of gas compressors can select whether or not to use the exhaust heat recovery path based on instructions from the controller, the controller compares the set required water temperature with the supply water temperature, which is the temperature of the water supplied from the exhaust heat recovery equipment to the outside, and at least one of the plurality of gas compressors is instructed to use the exhaust heat recovery path when the supply water temperature is lower than the required water temperature.

Efficient recovery of thermal energy. An exhaust heat recovery system comprising: a plurality of gas compressors; a exhaust heat recovery equipment; and a controller, wherein further comprising a exhaust heat recovery path connecting the plurality of gas compressors and the exhaust heat recovery equipment, and the plurality of gas compressors can select whether or not to use the exhaust heat recovery path based on instructions from the controller, the controller compares the set required water temperature with the supply water temperature, which is the temperature of the water supplied from the exhaust heat recovery equipment to the outside, and at least one of the plurality of gas compressors is instructed to use the exhaust heat recovery path when the supply water temperature is lower than the required water temperature.

Modern thermal power plants based on classical thermodynamic power cycles suffer from an upper bound efficiency restriction imposed by the Carnot principle. This disclosure teaches how to break away from the classical thermodynamics paradigm in configuring a thermal power plant so that its efficiency will not be restricted by the Carnot principle. The power generation system described herein makes a path for the next generation of low-to-moderate temperature thermal power plants to run at significantly higher efficiencies powered by renewable energy. This disclosure also reveals novel high-performance power schemes with integrated fuel cell technology, driven by a variety of fuels such as hydrogen, ammonia, syngas, methane and natural gas, leading toward low-to-zero emission power generation for the future.

Systems and/or methods are provided for the capture of carbon dioxide from flue gas generated within a building.

Systems and/or methods are provided for the capture of carbon dioxide from flue gas generated within a building.