Severe Modulation in Feedwater-Control Valves Reveals Need for Periodic Calibration
Credit to Author: Darrell Proctor| Date: Wed, 13 Feb 2019 14:10:11 +0000
Some combined-cycle plants have two feedwater-control valves: a small startup valve with the extra cavitation-protection needed during startup and low-load operations, and a larger main valve with the high flow-capacity needed during full-load ops. This design is intended to yield a longer service life of these valves. However, as the plant ages, this design also […]
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