Design and fabrication of polymer-concrete-lined pipe for testing in geothermal-energy processes. Final report
A specific polymer-concrete formulation was applied as a steel pipe liner in response to a need for durable, economical materials for use in contact with high temperature geothermal brine. Processes are described for centrifugally applying the liner to straight pipe, for casting the liner in pipe fittings, and for closure of field joints. Physical properties of the liner materials were measured. Compressive strengths of up to 165.8 MPa (24,045 psi) and splitting tensile strengths of 23.5 MPa (3408 psi) were measured at ambient temperature. Compressive strengths of 24 MPa (3490 psi) and splitting tensile strengths of 2.5 MPa (366 psi) were measured at about 150/sup 0/C (302/sup 0/F). A full-scale production plant is described which would be capable of producing about 950 m (3120 ft) of lined 305-mm-diam (12 in.) pipe per day. Capital cost of the plant is estimated to be about $8.6 million with a calculated return on investment of 15.4%. Cost of piping a geothermal plant with PC and PC-lined steel pipe is calculated to be $1.21 million, which compares favorably with a similar plant piped with alloy steel piping at a cost of $1.33 million. Life-cycle cost analysis indicates that the cost of PC-lined steel pipe would be 82% of that of carbon steel pipe over a 20-year plant operating life.
- Research Organization:
- Polymer Concrete Research, Inc., Fargo, ND (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6140665
- Report Number(s):
- BNL-33019; ON: DE83015199
- Resource Relation:
- Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CONCRETE-PLASTIC COMPOSITES
PHYSICAL PROPERTIES
GEOTHERMAL POWER PLANTS
PIPELINES
DESIGN
FABRICATION
LINERS
CAPITALIZED COST
COMPRESSION STRENGTH
HEAT RESISTANT MATERIALS
LIFE-CYCLE COST
PIPES
STEELS
TENSILE PROPERTIES
ALLOYS
COMPOSITE MATERIALS
COST
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MECHANICAL PROPERTIES
POWER PLANTS
THERMAL POWER PLANTS
Geothermal Legacy
150902* - Geothermal Engineering- Fluid Transmission