Method for driving machines, in an ethylene plant steam generation circuit, the method including recovering heat as high pressure steam from a cracking furnace; providing said high pressure steam to at least one steam turbine, wherein the steam turbine is configured to drive a machine, such as a process compressor; condensing at least part of the high pressure steam in a condenser; pumping condensed steam as boiler feed water back to the cracking furnace.

A cryogenic energy system for cooling and powering an indoor environment includes a cryogenic open loop comprising a cryogen source to supply a cryogen and at least one transfer-expansion stage in fluid connection with the cryogen source, each transfer-expansion stage comprising at least one heat exchanger for heat transfer therein from a hot fluid to the cryogen and a power unit for expansion therein of the cryogen that has been heated in the at least one heat exchanger to generate electricity, the at least one heat exchanger including an evaporator; and a heat supply open loop configured to provide the hot fluid for heat exchange with the cryogen in the at least one heat exchanger; the cryogenic energy system configured to perform heat removal from a first heat transfer loop of a conventional cooling system, the first heat transfer loop transferring heat obtained from air in the indoor environment.

A cryogenic energy system for cooling and powering an indoor environment includes a cryogenic open loop comprising a cryogen source to supply a cryogen and at least one transfer-expansion stage in fluid connection with the cryogen source, each transfer-expansion stage comprising at least one heat exchanger for heat transfer therein from a hot fluid to the cryogen and a power unit for expansion therein of the cryogen that has been heated in the at least one heat exchanger to generate electricity, the at least one heat exchanger including an evaporator; and a heat supply open loop configured to provide the hot fluid for heat exchange with the cryogen in the at least one heat exchanger; the cryogenic energy system configured to perform heat removal from a first heat transfer loop of a conventional cooling system, the first heat transfer loop transferring heat obtained from air in the indoor environment.

A hydraulic turbine unit, comprising: an evaporator, a main body, and a retractable liner. The liner is arranged within the main body and communicates with the evaporator. The main body contains an energy liquid. The main body is connected with a hydraulic turbine. A water tank is arranged at a water outlet of the hydraulic turbine. The water tank is arranged higher than the main body. The evaporator is configured to continuously absorb heat and evaporate a liquid working medium to enter the liner, such that a volume expansion of the liner pressurizes the energy liquid in the main body, and a pressurized energy liquid flows into the hydraulic turbine to output a mechanical energy. The energy liquid is configured to flow back to the main body due to a gravity thereof and compress a gaseous working medium for liquefaction, when an ambient temperature meets a liquefaction temperature.

A hydraulic turbine unit, comprising: an evaporator, a main body, and a retractable liner. The liner is arranged within the main body and communicates with the evaporator. The main body contains an energy liquid. The main body is connected with a hydraulic turbine. A water tank is arranged at a water outlet of the hydraulic turbine. The water tank is arranged higher than the main body. The evaporator is configured to continuously absorb heat and evaporate a liquid working medium to enter the liner, such that a volume expansion of the liner pressurizes the energy liquid in the main body, and a pressurized energy liquid flows into the hydraulic turbine to output a mechanical energy. The energy liquid is configured to flow back to the main body due to a gravity thereof and compress a gaseous working medium for liquefaction, when an ambient temperature meets a liquefaction temperature.

The present disclosure relates to methods for starting and rapidly decelerating a turbomachine in a power generation system that utilizes a supercritical fluid in a closed cycle.

The present disclosure teaches a system and method of generating electricity via a thermal power plant. The system and method includes a fuel heating chamber configured to receive a nano-thermite fuel, an induction assembly configured to inductively heat the fuel in the fuel heating chamber, and an electricity generating subsystem configured to convert heat from the heated nano-thermite fuel into electricity.

The present disclosure teaches a system and method of generating electricity via a thermal power plant. The system and method includes a fuel heating chamber configured to receive a nano-thermite fuel, an induction assembly configured to inductively heat the fuel in the fuel heating chamber, and an electricity generating subsystem configured to convert heat from the heated nano-thermite fuel into electricity.

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 ten 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 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 1-e of H kg of working medium, a mixing heat-absorption process e-6 of (M.sub.1+M.sub.2) kg of working medium and H 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.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 mixing heat-releasing process 5-6 of (M.sub.1+M.sub.2) kg of working medium and H kg of working medium, a depressurization process 6-7 of (M.sub.1+H) kg of working medium, a heat-releasing and condensation process 7-1 of (M.sub.1+H) kg of working medium.

The present invention relates to a high pressure process for Pre-Combustion and Post-Combustion CO.sub.2 capture (HP/MP/LP gasification) from a CO.sub.2 gas stream (CO2-Stream) by way of CO.sub.2 total subcritical condensation (CO2-CC), separation of liquid CO.sub.2, higher pressure elevation of obtained liquid CO.sub.2 via HP pump, superheating of CO.sub.2 up to high temperature for driving of a set of CO.sub.2 expander turbines for additional power generation (CO2-PG), EOR or sequestration (First new Thermodynamic Cycle). The obtained liquid CO.sub.2 above, will be pressurized at a higher pressure and blended with HP water obtaining high concentrated electrolyte, that is fed into HP low temperature electrochemical reactor (HPLTE-Syngas Generator) wherefrom the cathodic syngas and anodic oxygen will be performed. In particular the generated HP oxygen/syngas will be utilized for sequential combustion (“H.sub.2/O.sub.2-torches”) for super-efficient hydrogen based fossil power generation (Second new Thermodynamic Cycle).