Patent · US Expired

Method of and apparatus for producing power from solar ponds

US4894993A · kind A · utility

8Cited by
10References
31Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 4, 1987
Grant dateJan 23, 1990
Priority date
Expiry dateDec 4, 2007

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S203/18
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

Power is produced by a power plant using a salt-water solar pond comprising an upper wind-mixed layer, a halocline and a lower convective heat storage layer. The power plant includes a heat engine for utilizing heat present in the heat storage layer of the solar pond and a condenser, which preferably is cooled by liquid droplets. In accordance with a specific embodiment of the invention the power plant is positioned within the solar pond and a flash evaporator is used in the heat engine to produce steam which is supplied to a turbine connected to a generator, the heat depleted steam exiting from the turbine and being cooled by liquid droplets in a direct-contact condenser. The size of the droplets is selected such that the heat extracted in the condenser penetrates the majority of the liquid content of most of the droplets.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.