SEDL / STP / STP717-EB / STP30066S

Preliminary Evaluation of Materials for Fluidized Bed Technology in Geothermal Wells at Raft River, Idaho, and East Mesa, California

Dirk, WJ
Physical chemist, Exxon Nuclear Idaho Co., Idaho Falls, Idaho

Allen, CA
Branch Manager, Biological and Earth Sciences Brach, E G & G Idaho, Idaho Falls, Idaho

McAtee, RE
Senior chemist, E G & G Idaho, Idaho Falls, Idaho

Pages: 12    Published: Jan 1980

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Abstract

Corrosion tests of candidate materials for heat exchangers using liquid fluidized bed technology were conducted at the U.S. Department of Energy's geothermal wells at Raft River, Idaho, and at the Geothermal Components Test Facility (GCTF) in East Mesa, Calif. These investigations deal with moderate temperature ranges of 135 to 163°C for electrical generation and nonelectrical applications. The corrosion, erosion, and scale buildup were evaluated. The average penetration of Type 1025 carbon steel was 314 μm/year. Hastelloy alloys G and C276, stainless steels Type 304L, Type 316, Type 347, and Nitronic 50 had average penetrations of less than 2 μm/year.