QMC CENTRIFUGAL COMPRESSOR
PROGRAM for Windows
The QMC Kilgore Centrifugal Compressor
Program provides calculation
of centrifugal compressor performance over a wide range of operations, including, but not
limited to, start-up, normal operation at steady and varying load conditions, normal
shutdown, emergency shutdown, and safety valve relieving conditions. A single compressor
train with one or two services with a maximum of six stages (compressor sections) total
can be simulated.
Input from compressor manufacturer's performance curves and data provides the basis for
the generation of a mathematical model of each compressor stage (section).
This model develops adiabatic head versus actual volumetric inlet flow which is the basis
for calculating performance over a wide range of conditions.
In the graphic display of operating maps
below, notice that the surge line, anti-surge control line, operating point (and
trace), and choke line are shown as well as much pertinent data.
SYSTEM FEATURES (optional) that can be simulated:
Inlet Header
Operating flow range or pressure range
Pressure controller with control valve
to vent excess
Outlet Header
Operating flow range or pressure range
Pressure controller with control valve
to vent excess.
Compressor Suction
(each stage)
Inlet pressure controller and valve
(1st stage only)
Inlet excess pressure regulator valve
Cooler (air or water cooled)
Compressor Discharge
(each stage)
Pressure Safety Valve/s (PSV)
Silencer for Safety Valve/s
Emergency Vent Valve (blowdown)
Cooler (air or water cooled)
Anti-Surge Valve (may connect to suction same
or any previous stage)
Interstage Options
Check valve installed
Check valve installed with anti-surge overlap
Check valve not installed
Check valve installed with bypass flow element
External balance gas flow connections
SYSTEM CONTROLLERS
Main Unit Controller
Control mode
No control
Discharge Pressure control
Inlet Header Pressure control
Discharge + Inlet Header Pressure control
Output from any above configuration
to set point on Discharge Flow Controller
Unit Controller to control
RPM
Anti-surge valve
1st Stage inlet valve
External discharge to suction by-pass valve
Anti-Surge Controllers
Auxiliary Controllers
Inlet Header Pressure Controller
Outlet Header Pressure Controller
Final Discharge Temperature Controller
Control Parameters
(adjustable)
Reset (Integral)
Gain (Proportional)
Derivative
Induction Motor Driver
Use motor manufacturer torque/RPM curve or
program
default curve for acceleration during start.
System Requirements
Available for: Win95/98/NT
Minimum CPU Requirements: 486
Minimum Ram: 8 MB
Version: 6
Published: 2000
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