
Two-Stage Compressor Test Set
Model Number: GT103
A self-contained mobile test set for investigating the operation and performance of single- and two-stage air compressors.
Overview
A self-contained mobile two-stage reciprocating air compressor test set to allow investigations into the operation and performance of compressors with a single-stage, two stages and two stages with inter-cooling. Also covers the fundamentals of heat engine theory.
This test set has two independently-controlled, motor driven compressors, intercooler and air receiver. It works as a single-stage, two-stage or two-stage compressor with intercooler. All controls and instrumentation are on an easy-to-operate mimic panel.
Electric motors and low-maintenance toothed belts drive two twin-cylinder, air-cooled reciprocating compressors. Electronic drive units independently control both motors. Meters show motor electrical power consumption of each motor. A close-coupled load cell on each motor measures torque. A sensor on each motor measures speed, shown by a digital indicator. The product of the torque and speed gives true shaft power.
Features
- Two independently controlled, motor-driven compressors
- Operates as a single-stage, two-stage, or two-stage compressor with intercooler
- Easy-to-operate mimic panel with integrated controls and instrumentation
- Two twin-cylinder, air-cooled reciprocating compressors
- Electronic drive units independently control both motors
- Motor electrical power consumption metering for each motor
- Close-coupled load cell on each motor measures torque
- Speed sensor on each motor with digital indication
- True shaft power determined from torque and speed
- Diverter valves allow multiple air-flow arrangements
- Independent compressor speed control for matching under different conditions
- Interlocks allow safe changeover during operation and help prevent misuse
- Relief valves fitted to all pressurised lines for safety
Specifications
- Self-contained mobile two-stage reciprocating air compressor test set
- Two independently-controlled, motor-driven compressors
- Two twin-cylinder, air-cooled reciprocating compressors
- Integral water-cooled intercooler
- Air receiver included
- Easy-to-operate mimic panel with controls and instrumentation
- Electric motors with low-maintenance toothed belt drive
- Electronic drive units for independent motor control
- Power meters for each motor
- Close-coupled load cell on each motor for torque measurement
- Speed sensor on each motor with digital indicator
- Air-flow routing options: from the first stage to the receiver; directly to the second stage; to the second stage by means of the integral water-cooled intercooler
- Safety features include interlocks and relief valves on all pressurised lines
Learning Outcomes
- Volumetric efficiency
- Mechanical efficiency
- Isothermal efficiency
- Indicated work done
- Motor output power (compressor shaft power)
- Pressure ratio
- Temperature ratio
- Inlet dryness calculations
- P-V indicator diagram
- Effect of inter-stage cooling on compressor total power requirements and cycle temperatures
- Effect of two-stage compression and inter-stage pressure on power requirements
Add On Products
Items Included
- Self-contained mobile test set
- Two independently-controlled, motor-driven compressors
- Two twin-cylinder, air-cooled reciprocating compressors
- Integral water-cooled intercooler
- Air receiver
- Easy-to-operate mimic panel
- Electric motors and low-maintenance toothed belts
- Electronic drive units
- Motor electrical power meters
- Close-coupled load cells on each motor
- Speed sensors on each motor
- Digital speed indicator
- Diverter valves
- Interlocks
- Relief valves on all pressurised lines
Requirements
- Optional Pressure Indicator (GT103a) is required for P-V indicator diagrams.

