Heated piping system for fusible salt heat exchange fluid in a s

Details Heated piping system for fusible salt heat exchange fluid in a s Heated piping system for fusible salt heat exchange fluid in a s

1978-06-16

1980-05-27

Davis, Albert W.

Power plants

Utilizing natural heat

Geothermal

126427, 126900, 165134R, 137341, 219300, F03G 702

Patent

active

042044073

ABSTRACT:
The method of heating the piping system for a HITEC or PARTHERM 290 (trademarks) heat exchange flow system in which this fusible salt is used as the heat exchange fluid throughout a solar electric power plant field. To prevent the fusible salt from freezing in the stainless steel pipes and to heat up the pipes prior to introduction of the molten salt the entire piping system in the field is heated up above the melting temperature of the salt. That is, they are heated to a temperature somewhere above 150.degree. C. and below 500.degree. C. For this purpose, a high current at a very low voltage flows through the piping system and uses the stainless steel pipes themselves as the resistive heating element and dissipates energy within the stainless steel pipes bringing them up to an appropriate temperature.

REFERENCES:
patent: 1019413 (1912-03-01), Batchelder
patent: 2981818 (1961-04-01), Trabilcy
patent: 3258204 (1966-06-01), Smith, Jr.

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