Open cycle ocean thermal energy conversion steam control and byp

Details Open cycle ocean thermal energy conversion steam control and byp Open cycle ocean thermal energy conversion steam control and byp

1978-08-17

1980-07-01

Rubinson, Gene Z.

Prime-mover dynamo plants

Turbogenerators

290 1R, 60641, F03G 704

Patent

active

042108195

ABSTRACT:
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.

REFERENCES:
patent: 3995160 (1976-11-01), Zener et al.
patent: 4069673 (1978-01-01), Lapeyre
patent: 4083189 (1978-04-01), Fetkovich
patent: 4087975 (1978-05-01), Owens
Andrew Nizery-"Study of the Possibility of the Utilization of Thermal Energy of the Sea and of Solar Energy", Bulletin _de l'Institute Oceanographique No. 906, Dec. 30, 1946.

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