Development of Corrosion Risk Evaluation System in Acidic Geothermal System
- Key words
- corrosion rate, acidic fluid, material selection, Cr equivalent
- Conference
- Stanford Geothermal Workshop
- Year
- 2023
- Session
- Production Engineering
- Language
- English
- Paper number
- Yanagisawa
Full text
1162 KB, opens in a new tab
Abstract
We have developed a tool "Geothermal power plant risk assessment system (acidic hot water version)" that can consider the optimal materials for power plant construction when the hot water for geothermal power generation is found to be acidic. If the geothermal resource is acidic hot water, the corrosion and damage to the power generation facilities are large, which is a factor in the decline in the utilization rate of geothermal power plants and the abandonment of development. By using this tool, it is possible to evaluate the corrosion rate and economic efficiency of each metal material, and se1ect the optimum material, including corrosion resistance performance and cost. In addition, preliminary examination of each metal material can be easily performed from the test data and related papers on the corrosion of the target metal material. This is expected to promote the utilization of acidic hot water resources, improve the utilization rate of geothermal power plants, and increase installed capacity.
Copyright 2023, Stanford Geothermal Program. Readers who download papers from this site should honour the copyright of the original authors, and may not copy or distribute the work further without the permission of the original publisher.