Method and apparatus for production of seeding materials

Details Method and apparatus for production of seeding materials Method and apparatus for production of seeding materials

1975-05-23

1978-12-12

Peters, Jr., Joseph F.

Fluid sprinkling, spraying, and diffusing

Processes

Of weather control or modification

239 14, 239139, A01G 1500

Patent

active

041292529

ABSTRACT:
A method and apparatus is provided for production of ice nuclei by generation of homogenous nuclei in nozzle or orifice expansions. The homogeneous nuclei are formed in the rapid cooling of vapors by rapid expansion through a supersonic nozzle or an orifice. These nuclei then serve as seeding materials for formation of ice.
A preferred method of carrying out the invention includes heating a volatile compound in a closed chamber to form a vapor, pressurizing the chamber with nitrogen gas and controllably releasing the resulting nitrogen gas-vapor combination through a nozzle or orifice in supersonic flow.

REFERENCES:
patent: 2658796 (1953-11-01), Kopperschmidt
patent: 3126155 (1964-03-01), Lohse
patent: 3313490 (1967-04-01), Loveland
patent: 3545677 (1970-12-01), Power et al.
patent: 3554443 (1971-01-01), Hughes
patent: 3788543 (1974-01-01), Amand et al.
patent: 3899129 (1975-08-01), Fukuta et al.

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