Open cycle ocean thermal energy conversion steam control and bypass system [electronic resource].

Published:: Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1980.
Additional Creators:: United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

Two sets of hinged control doors for regulating motive steam flow from an evaporator to a condenser alternatively through a set of turbine blades in a steam bypass around the turbine blades. The evaporator has a toroidal shaped casing situated about the turbine's vertical axis of rotation and an outlet opening therein for discharging motive steam into an annular steam flow path defined between the turbine's radially inner and outer casing structures. The turbine blades extend across the steam flow path intermediate the evaporator and condenser. The first set of control doors is arranged to prevent steam access to the upstream side of the turbine blades and the second set of control doors acts as a bypass around the blades so as to maintain equilibrium between the evaporator and condenser during non-rotation of the turbine. The first set of control doors preferably extend, when closed, between the evaporator casing and the turbine's outer casing and, when open, extend away from the axis of rotation. The second set of control doors preferably constitute a portion of the turbine's outer casing downstream from the blades when closed and extend, when open, toward the axis of rotation. The first and second sets of control doors are normally held in the open and closed positions respectively by locking pins which may be retracted upon detecting an abnormal operating condition respectively to permit their closing and opening and provide steam flow from the evaporator to the condenser.

Report Numbers:

E 1.99:us 4210819
us 4210819

Other Subject(s):

Cycle Ocean Thermal Energy Conversion Steam Control Bypass Sets Hinged Control Doors Regulating Motive Steam Flow Evaporator Condenser Alternatively Set Turbine Blades Steam Bypass Turbine Blades Evaporator Toroidal Shaped Casing Situated Turbine Vertical Axis Rotation Outlet Therein Discharging Motive Steam Annular Steam Flow Path Defined Turbine Radially Inner Outer Casing Structures Turbine Blades Extend Steam Flow Path Intermediate Evaporator Condenser Set Control Doors Arranged Prevent Steam Access Upstream Turbine Blades Set Control Doors Bypass Blades Maintain Equilibrium Evaporator Condenser Non-Rotation Turbine Set Control Doors Preferably Extend Closed Evaporator Casing Turbine Outer Casing Extend Axis Rotation Set Control Doors Preferably Constitute Portion Turbine Outer Casing Downstream Blades Closed Extend Axis Rotation Sets Control Doors Normally Held Closed Positions Respectively Locking Pins Retracted Detecting Abnormal Operating Condition Respectively Permit Closing Provide Steam Flow Evaporator Condenser Motive Steam Motive Steam Ocean Thermal Outer Casing Outer Casing Outer Casing Vertical Axis Turbine Blade Turbine Blade Turbine Blade Turbine Blade Thermal Energy Flow Path Flow Path Energy Conversion Turbine Blades Turbine Blades Turbine Blades Turbine Blades Closed Position Radially Inner Operating Condition Closed Positions Normal Operating Steam Flow Steam Flow Steam Flow Steam Flow Annular Steam Path Defined Cycle Ocean Steam Control

Note:

Published through SciTech Connect.
01/01/1980.
"us 4210819"
Wittig, J. Michael; Jennings, Stephen J.

Funding Information:

EG-77-C-03-1473

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