Abstract: A total flow turbine comprises a total flow nozzle and rotor vane train designed to allow a two-phase fluid comprising water and water vapor to pass through the rotor vane train with little deflection to minimize collision of the water with the rotor vane walls.

Abstract: Hot water is uniformly accelerated in a nozzle having a tapered flow passage so that it can flow into a moving blade smoothly. The hot water is then expanded and accelerated within the flow passage of the moving blade which is not turned but widened toward its end and power is generated by its reaction, thereby ensuring a highly efficient total flow turbine.

Abstract: A geothermal turbine intallation in which high-pressure steam is separated from geothermal steam, which is a mixture of steam and water, with the high pressure steam connected to a high pressure turbine. Low pressure steam produced by flashing the hot water component of the geothermal steam is introduced to a low pressure turbine which is constructed and operates independently of the high pressure turbine. The discharge steam from the high pressure turbine is introduced to a steam condenser operating at a low vacuum while discharge steam from the low pressure turbine is introduced into a steam condenser operating at a high vacuum. The cooling water system of the high and low pressure condensers are connected in series with one another. A maximum power increase is obtained if the flow rates of the high and low pressure steams at the extraction ports of the high and low pressure turbines are made substantially equal to one another.

Abstract: A direct contact type multi-stage steam condenser system having a direct contact type high vacuum stage steam condenser disposed above a low vacuum stage steam condenser with a water supplying tank for the low vacuum stage condenser disposed therebetween. In the preferred embodiment, the high and low vacuum stage condensers and the water supplying tank are formed integrally as a single unit. The water supplying tank, which also serves as a gas-tight seal between the condenser stages, is formed above a water sprinkling board provided in the upper portion of the low vacuum stage condenser. Condensed water falls under its own weight thereby eliminating the need for an intermediate pressurizing pumps.

Abstract: A double flow-type steam turbine installation in which two turbine sections of a double flow-type steam turbine are provided with different final stage steam path areas. The turbine section with the higher area is connected to a high vacuum condenser while the turbine section with the lower area is connected to a low vacuum condenser. The cooling water systems of the two condensers are connected in series with each other. The efficiency of the system is significantly increased over previous installations.