Thermochemical penetrator for ice and frozen soils

Details Thermochemical penetrator for ice and frozen soils Thermochemical penetrator for ice and frozen soils

1989-02-28

1990-05-08

Novosad, Stephen J.

Boring or penetrating the earth

Boring by directly applying heat to fluidize or comminute

Combustion is confined chamber having restricted discharge...

175 18, 299 5, F25C 508

Patent

active

049230190

ABSTRACT:
An apparatus and method are described for penetrating ice. The apparatus comprises: (a) a confined thermochemical reaction chamber having an inlet opening and an outlet opening and containing therein a substantially immobilized first thermochemical reactant, (b) flow means connected to said inlet for delivering an aqueous second thermochemical reactant to said reaction chamber for exothermal reaction with the first reactant, and (c) said outlet opening comprising discharge means for delivering hot thermochemical reaction product including hot aqueous fluid and/or steam into contact with the ice to be melted and penetrated. In an alternative design, the inlet and outlet may be a single opening with a cyclic or oscillating exothermic reaction taking place within the reaction chamber.

REFERENCES:
patent: 1165691 (1915-12-01), Mason
patent: 3620313 (1971-11-01), Elmore
patent: 3917007 (1975-11-01), Tsiferov
patent: 3998749 (1976-12-01), Hydro et al.
patent: 4255157 (1979-09-01), Yamaguchi et al.
patent: 4425251 (1984-01-01), Gancy
patent: 4643166 (1987-02-01), Hubele et al.
patent: 4651834 (1987-03-01), Eninger et al.

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