Turbomachinery Control Valves Sizing and Selection
Abstract
Turbomachinery Controls dedicated to centrifugal and
axial compressors use several types of control valves, such as:
-Antisurge (recycle) valve
-Suction throttle valve
-Hot-gas bypass valve
-Quench control valve
As the final control element in its control loop, these
control valves are vital to implementing good turbomachinery
controls. This tutorial will examine the control objective of
each type of valve, its ideal location relative to the
turbocompressor and the optimum performance characteristics
for the valve. Valve selection criteria and sizing methodologies
with examples will be addressed. Recommendations for valve
noise abatement will be provided, as well as valve noiseabatement
pitfalls that should be avoided will be identified.
The possible negative or positive impact of annular seal on
rotordynamics of compressors and steam turbines is discussed.
The nature of destabilizing forces that can be developed by
Asee-through@ and interlocking labyrinths is discussed.
Description
TutorialsCollections
Citation
Zaghloul, Medhat (2018). Turbomachinery Control Valves Sizing and Selection. Turbomachinery Laboratory, Texas A&M Engineering Experiment Station. Available electronically from https : / /hdl .handle .net /1969 .1 /172446.