An offshore power generation structure comprising a submerged portion having a first deck portion comprising an integral multi-stage evaporator system, a second deck portion comprising an integral multi-stage condensing system, a third deck portion housing power generation equipment, cold water pipe; and a cold water pipe connection.

Strain augmented power cycle is disclosed. This power cycle is a thermodynamic power cycle that contains a strain energy device to increase the thermodynamic efficiency above what is possible from a conventional Rankine power cycle. Strain augmented power cycle comprises an assembly of components including a working fluid, a pump, an evaporator, a strain energy device, an expander and a condenser.

A novel processed vapor make-up water subsystem that uses a make-up water boiler to boil and purify make-up water and its method of use are described. Upon vaporization, dissolved solids remain in the liquid water in the bottom of the make-up boiler and the solids free steam is introduced into the main boiler loop through a deaerator. Periodically, the water in the bottom of the make-up boiler is blown down when the amount of dissolved solids in the water reach a predetermined level.

A novel processed vapor make-up water subsystem that uses a make-up water boiler to boil and purify make-up water and its method of use are described. Upon vaporization, dissolved solids remain in the liquid water in the bottom of the make-up boiler and the solids free steam is introduced into the main boiler loop through a deaerator. Periodically, the water in the bottom of the make-up boiler is blown down when the amount of dissolved solids in the water reach a predetermined level.

Three-way valve with a valve housing and a closing body arranged in a longitudinally movable manner in the valve housing. An inlet channel, a first outlet channel and a second outlet channel are formed in the valve housing. The closing body interacts by longitudinal movement with a first valve seat formed in the valve housing and thereby opens and closes a first hydraulic connection between the inlet channel and the first outlet channel. Furthermore, the closing body interacts by longitudinal movement with a second valve seat formed in the valve housing and thereby opens and closes a second hydraulic connection between the inlet channel and the second outlet channel. A throttle is formed in the second hydraulic connection.

A subcritical pressure high-temperature steam power plant includes a combustion boiler system, steam turbine generator system, and condensate and feedwater system and wherein the conditions of steam generated in the boiler system and supplied to the steam turbine generator system are subcritical pressure and high temperature (turbine inlet temperature of 593° C. or more).

A method for generating steam for hydrocarbon production is provided. The method includes producing steam using heat from an exhaust stream from a gas turbine system. A water stream is condensed from combustion products in the exhaust stream, and the water stream is used as a make-up water for production of the steam.

A method for generating steam for hydrocarbon production is provided. The method includes producing steam using heat from an exhaust stream from a gas turbine system. A water stream is condensed from combustion products in the exhaust stream, and the water stream is used as a make-up water for production of the steam.

A waste heat power generation device having: an evaporator that recovers waste heat energy to evaporate a working medium; an expansion turbine generator that generates electric power with the working medium being supplied from the evaporator; a condenser that condenses the working medium discharged from the expansion turbine generator; a pump that feeds the working medium condensed in the condenser toward the evaporator; a measuring device that measures the amount of power generated by the expansion turbine generator per unit time; and a control device that controls the driving of the pump based on the measurement result of the measuring device.

Some embodiments of the present disclosure include a method and method for recovery of solution mined minerals. The method may include creating superheated steam using a steam boiler; passing the superheated steam through a turbine/generator to generate electricity; reheating the steam exiting the turbine/generator to saturation with a steam reheater; using the saturated steam with an absorption chiller to create chilled water; and recovering minerals using the chilled water in a cooling crystallizer system. In embodiments, the method and system may be used to recover minerals, such as potash (KCl), washing soda (Na.sub.2CO.sub.3.10H.sub.2O); nahcolite (NaHCO.sub.3); and glauber salt (NaSO.sub.4.10H.sub.2O). The method may utilize the trigeneration of steam, electrical, and chilled water utilities, which may be used for a recovery process.