Abstract
Erosion and erosion-corrosion of stainless steel, carbon steel and ceramic lined carbon steel are investigated in a superheated geothermal steam at a high velocity (98-118. m/s) and at a lower velocity (48. m/s) for comparison. Erosion-corrosion caused the high velocity carbon steel test pipe to leak after only 14 days. Furthermore, evidence of erosion is seen in all pipe bends. Interestingly, cracks and pits were formed in the N08028 and S32707 stainless steels, but not in the S31254 stainless steel. The dry superheated steam is supersaturated with silica causing the test unit to clog after only 24 days of testing.
| Original language | English |
|---|---|
| Pages (from-to) | 170-181 |
| Number of pages | 12 |
| Journal | Geothermics |
| Volume | 51 |
| DOIs | |
| Publication status | Published - Jul 2014 |
Bibliographical note
Funding Information:The authors wish to thank the Icelandic National Energy Company Landsvirkjun for financial support and for establishing the pilot studies that were done at the IDDP-1 site. We would also like to thank Kristján Einarsson and Sigurður Markússon at Landsvirkjun for their collaboration and information regarding the IDDP-1 environment and tests, and the staff at the Krafla power plant for the on-site support.
Other keywords
- Carbon steel
- Erosion
- Erosion-corrosion
- Geothermal superheated steam
- Hydrogen chloride
- Hydrogen sulfide
- Iceland
- IDDP-1 well
- Krafla
- Stainless steel