Polymeric and composite materials for use in systems utilizing hot, flowing geothermal brine. II

Conference · Thu Apr 13 00:00:00 EST 1978

OSTI ID:6813330

Lorensen, L E; Walkup, C M

Further progress is reported on a continuing experimental program designed to select high-performance polymeric materials for use in geothermal power plants. In field tests 12 nozzles, 27 wear plates, and 2 types of polymer lined pipe were tested. Nozzles made of Teflons TFE and PFA, Tefzel, Ryton PPS and H-Resin/carbon cloth were little changed except for some scaling. The fluorocarbons scaled least rapidly. All blade type wear plates eroded, those based on Tefzel, PPQ, and PPS the least. Fluorocarbon lined pipes were little affected by exposure. In laboratory tests samples were heated at 250 and 300/sup 0/C in brine. Several materials including fluorocarbon and unhydrolyzable aromatic or cross-linked aliphatic, thermally stable polymers survived for periods up to 1300 h. In erosion tests, coatings based on epoxy resins and a fluorocarbon were most resistant; good adhesion was required.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6813330
• Report Number(s): UCRL-81019; CONF-780611-2
• Resource Relation: Conference: AIChE symposium, Philadelphia, PA, USA, 4 Jun 1978
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
36 MATERIALS SCIENCE
GEOTHERMAL FLUIDS
SCALING
NOZZLES
MATERIALS TESTING
PIPES
EROSION
TOTAL FLOW SYSTEMS
PERFORMANCE TESTING
BENCH-SCALE EXPERIMENTS
BRINES
COATINGS
COMPOSITE MATERIALS
DIAGRAMS
GEOTHERMAL POWER PLANTS
ORGANIC POLYMERS
RESINS
TEFLON
FLUIDS
FLUORINATED ALIPHATIC HYDROCARBONS
HALOGENATED ALIPHATIC HYDROCARBONS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYETHYLENES
POLYMERS
POLYOLEFINS
POLYTETRAFLUORETHYLENE
POWER PLANTS
TESTING
THERMAL POWER PLANTS
Geothermal Legacy
150903* - Geothermal Engineering- Corrosion
Scaling & Materials Development
360405 - Materials- Polymers & Plastics- Degradation & Erosion- (-1987)