Abstract
(Received August 8, 2011; Revised August 29, 2011; Accepted August 29, 2011)The iron oxide particles could be resulted from the corrosion of the circulating water system of a power plant.Because it may be one of the trouble materials which affect the power generation efficiency due to the depositionon steam generator tube and turbine blade, the continuous observation of its concentration is very important.The laser induced break-down detection (LIBD) technology was applied to monitor continuously the concentrationof corrosion products with the detection limit of ppb level. The measurement system consists of a Nd:YAG pulsed laser, a polarizing beam splitter, a flow-type sample cell, an acoustic emission sensor, a high speed data acquisition board, a personal computer, etc.. The performance test results confirmed that this technology can be effective to monitor the corrosion product concentration of the circulating water system of a power plant.
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