An Ericsson cycle turbine engine. The Ericsson cycle turbine may comprise: a centrifugal gas compressor, shaft, at least one heat exchanger, and a reaction turbine. The centrifugal gas compressor may function as a spinning wheel trompe and may be fed with a gas-liquid mixture. The centrifugal gas compressor may separate a gas from the gas-liquid mixture after compression of that gas via centrifugal acceleration. The shaft may couple to the downstream end of the centrifugal gas compressor and may have an annular space to permit the compressed gas to travel therein. The heat exchanger may introduce heat to the compressed gas, such that isobaric expansion is approached. The reaction turbine may couple to the downstream end of the shaft and may rotate the shaft when releasing the compressed gas. The liquid may be mercury, oil, or a water-glycol mixture. The gas may be helium, air, argon, or ammonia.

A method for generating power from a heat source includes mixing a refrigerant in a liquid phase with a lubricating oil, heating the mixture to evaporate the refrigerant, mixing the heated mixture with additional refrigerant in a superheated phase, and atomizing the lubricating oil to disperse the lubricating oil within the refrigerant. The atomized lubricating oil and the refrigerant are passed through a decompressor to generate an electrical current. The refrigerant may be an organic material having a boiling point below about −35 C. Related systems and heat engines are also disclosed.

A thermal utilization system is capable of producing power, storing energy via a chemical or and a hydropower-elevation means. It also capable of transport fluid as vapor over obstacles and terrains, as well as desalinate water. It may in some embodiments do all or some of these tasks simultaneously and with the same amount of energy. It may run with any source of energy including renewable energy sources such as solar energy, and wind. The system may use that energy to run a heat engine and, at the same time, stores that energy via chemical separation. When energy is needed, the system may withdraw the chemical substances and lets them interact to claim the energy back, and then use it to run a heat engine and desalinate water. Some parts of the system can be used for cooling and heating. The system may be configured to be an air conditioner unit or a refrigerator that has an internal back up energy storage.

A thermal utilization system is capable of producing power, storing energy via a chemical or and a hydropower-elevation means. It also capable of transport fluid as vapor over obstacles and terrains, as well as desalinate water. It may in some embodiments do all or some of these tasks simultaneously and with the same amount of energy. It may run with any source of energy including renewable energy sources such as solar energy, and wind. The system may use that energy to run a heat engine and, at the same time, stores that energy via chemical separation. When energy is needed, the system may withdraw the chemical substances and lets them interact to claim the energy back, and then use it to run a heat engine and desalinate water. Some parts of the system can be used for cooling and heating. The system may be configured to be an air conditioner unit or a refrigerator that has an internal back up energy storage.

It is provided a power generation model based on a transcritical cycle with an increasing-pressure endothermic process using CO.sub.2-based mixture working fluids for an enhanced geothermal system, including a geothermal water circulation, a mixture working fluid circulation and a cooling water circulation. A coaxial pipe-in-pipe downhole heat exchanger is provided in the mixture working fluid circulation. Innovations are reflected in that an increasing-pressure endothermic process is achieved due to making use of gravity and hence increase a heat quantity absorbed in a cycle, thereby improving power generation quantity of the cycle; and a binary mixture working fluid composed of CO.sub.2 and an organic working fluid is adopted to realize a transcritical power cycle with an increasing-pressure endothermic process and a decreasing-temperature exothermic process, thereby effectively reducing irreversibility of a heat transfer between a working fluid and a heat source and improving power cycle efficiency.

It is provided a power generation model based on a transcritical cycle with an increasing-pressure endothermic process using CO.sub.2-based mixture working fluids for an enhanced geothermal system, including a geothermal water circulation, a mixture working fluid circulation and a cooling water circulation. A coaxial pipe-in-pipe downhole heat exchanger is provided in the mixture working fluid circulation. Innovations are reflected in that an increasing-pressure endothermic process is achieved due to making use of gravity and hence increase a heat quantity absorbed in a cycle, thereby improving power generation quantity of the cycle; and a binary mixture working fluid composed of CO.sub.2 and an organic working fluid is adopted to realize a transcritical power cycle with an increasing-pressure endothermic process and a decreasing-temperature exothermic process, thereby effectively reducing irreversibility of a heat transfer between a working fluid and a heat source and improving power cycle efficiency.

A bottoming cycle power system includes a turbo-expander operable to rotate a turbo-crankshaft as a flow of exhaust gas from a combustion process passes through the turbo-expander. A turbo-compressor is operable to compress the flow of exhaust gas after the exhaust gas passes through the turbo-expander. An open cycle absorption chiller system includes an absorber section operable to receive the flow of exhaust gas from the turbo-expander and to mix the flow of exhaust gas with a first refrigerant solution within the absorber section. The first refrigerant solution is operable to absorb water from the exhaust gas as the exhaust gas passes through the first refrigerant solution. The absorber section is operable to route the flow of exhaust gas to the turbo-compressor after the flow of exhaust gas has passed through the first refrigerant solution.

The single-working-medium vapor combined cycle is provided in this invitation and belongs to the field of energy and power technology. A single-working-medium vapor combined cycle method consisting of eleven processes which are conducted with M.sub.1 kg of working medium, M.sub.2 kg of working medium and H kg of working medium separately or jointly: a pressurization process 1-2 of the M.sub.1 kg of working medium, a heat-absorption vaporization process 2-3 of the M.sub.1 kg of working medium, a pressurization process 1-e of the H kg of working medium, a mixed heat-absorption process e-6 of the (M.sub.1+M.sub.2) kg of working medium and the H kg of working medium, a pressurization process 6-3 of the M.sub.2 kg of working medium, a heat-absorption process 3-4 of the (M.sub.1+M.sub.2) kg of working medium, a depressurization process 4-5 of (M.sub.1+M.sub.2) kg of working medium, a heat-releasing process 5-f of the (M.sub.1+M.sub.2) kg of working medium, a mixed heat-releasing process f-6 of the (M.sub.1+M.sub.2) kg of working medium and the H kg of working medium, a depressurization process 6-7 of the (M.sub.1+H) kg of working medium, a heat-releasing and condensation process 7-1 of the (M.sub.1+H) kg of working medium.

The single-working-medium vapor combined cycle is provided in this invitation and belongs to the field of energy and power technology. A single-working-medium vapor combined cycle consists of eight processes which are conducted with M.sub.1 kg of working medium and M.sub.2 kg of working medium separately or jointly: a pressurization process 1-2 of M.sub.1 kg of working medium, a heat-absorption and vaporization process 2-3 of M.sub.1 kg of working medium, a pressurization process 6-3 of M.sub.2 kg of working medium, a heat-absorption process 3-4 of M.sub.3 kg of working medium, a depressurization process 4-5 of M.sub.3 kg of working medium, a heat-releasing process 5-6 of M.sub.3 kg of working medium, a depressurization process 6-7 of M.sub.1 kg of working medium, and a heat-releasing and condensation process 7-1 of M.sub.1 kg of working medium; M.sub.3 is the sum of M.sub.1 and M.sub.2.

The single-working-medium vapor combined cycle is provided in this invitation and belongs to the field of energy and power technology. A single-working-medium vapor combined cycle method consisting of thirteen processes which are conducted with M.sub.1 kg of working medium, M.sub.2 kg of working medium and H kg of working medium separately or jointly: performing a pressurization process to set a state (1) to (2) of the M.sub.1 kg of working medium, performing a heat-absorption and vaporization process to set a state (2) to (3) of the M.sub.1 kg of working medium, performing a depressurization process to set a state (3) to (4) of the M.sub.1 kg of working medium, performing a heat-absorption process to set a state (4) to (5) of the M.sub.1 kg of working medium, performing a pressurization process to set a state (1) to (e) of the H kg of working medium, performing a heat-absorption process to set a state (e) to (8) of the H kg of working medium, performing a pressurization process to set a state (8) to (5) of the M.sub.2 kg of working medium, performing a heat-absorption process to set a state (5) to (6) of the (M.sub.1+M.sub.2) kg of working medium, performing a depressurization process to set a state (6) to (7) of the (M.sub.1+M.sub.2) kg of working medium, performing a heat-releasing process to set a state (7) to (f) of the (M.sub.1+M.sub.2) kg of working medium, performing a mixing heat-releasing process to set a state (f) to (8) of the (M.sub.1+M.sub.2) kg of working medium and H kg of working medium, performing a depressurization process to set a state (8) to (9) of the (M.sub.1+H) kg of working medium, performing a heat-releasing and condensation process to set a state (9) to (1) of the (M.sub.1+H) kg of working medium.