Corrosion product monitoring using an on-line X-ray fluorescence probe
Technical Report
·
OSTI ID:50701
- Babcock & Wilcox Research, Alliance, OH (United States)
- Electric Power Research Institute, Palo Alto, CA (United States)
The need for monitoring corrosion products is becoming increasingly important as power plants strive to minimize the effects of corrosion products on plant availability. Current methodology for monitoring corrosion products involves collection of samples using membrane filters followed by analysis of the membranes in the laboratory. This technique is labor intensive and provides only average values over lengthy sampling intervals. Recently, a laboratory tool, x-ray fluorescence spectroscopy, has been combined with on-line sampling capability resulting in an on-line instrument capable of measuring iron oxide particulates in a flowing stream at the ppb level and below. After development in the laboratory, the instrument was successfully field tested in a power plant and is currently undergoing a second field test at another plant. This paper will discuss the design and operation of the instrument, and field data obtained from plant service will be presented. Results show that this instrument will provide on-line measurements of iron oxides at the ppb level with minimal operator involvement.
- Research Organization:
- Electric Power Research Inst., Palo Alto, CA (United States)
- OSTI ID:
- 50701
- Report Number(s):
- EPRI-TR--104502; CONF-940982--
- Country of Publication:
- United States
- Language:
- English
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