Energy conversion system involving change in the density of an u

Details Energy conversion system involving change in the density of an u Energy conversion system involving change in the density of an u

1987-04-28

1989-01-31

Ostrager, Allen M.

Power plants

Motive fluid energized by externally applied heat

Process of power production or system operation

60673, 60685, 60688, 60689, 310 11, F01K 2504

Patent

active

048007277

ABSTRACT:
A system for converting thermal energy into electrical energy includes a fluid reservoir, a relatively high boiling point fluid such as lead or a lead alloy within the reservoir, a downcomer defining a vertical fluid flow path communicating at its upper end with the reservoir and an upcomer defining a further vertical fluid flow path communicating at its upper end with the reservoir. A variable area nozzle of rectangular section may terminate the upper end of the upcomer and the lower end of the of the downcomer communicates with the lower end of the upcomer. A mixing chamber is located at the lower end portion of the upcomer and receives a second relatively low boiling point fluid such as air, the mixing chamber serving to introduce the low boiling point fluid into the upcomer so as to produce bubbles causing the resultant two-phase fluid to move at high velocity up the upcomer. Means are provided for introducing heat into the system preferably between the lower end of the downcomer and the lower end of the upcomer. Power generating means are associated with the one of the vertical fluid flow paths one such power generating means being a magneto hydrodynamic electrical generator.

REFERENCES:
patent: 3443129 (1969-05-01), Hammitt
patent: 4030303 (1977-06-01), Kraus et al.
patent: 4041710 (1977-08-01), Kraus et al.
patent: 4392062 (1983-07-01), Bervig
patent: 4571534 (1986-02-01), Cover

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