Two Stage Air Compressor | ThermoFlux – 7092
The Two Stage Air Compressor ThermoFlux – 7092 is a laboratory trainer for studying the operating characteristics and thermal behaviour of a two-stage reciprocating compressor with V-cylinder arrangement. The unit features a water-cooled intercooler between compression stages, a 200 L pressure vessel (8 bar operating, 12 bar maximum), an orifice-type intake flowmeter, and seven temperature sensors covering -100 to 400°C across both stages. This two stage air compressor operates at 2.2 kW, 0 to 900 rpm, and 200 L/min intake capacity, with pressure measurement ranges of 0 to 4 bar and 0 to 16 bar displayed on digital and analogue indicators. Optional LabVIEW-based DAQ software enables p-V diagram representation and PC-based data acquisition via USB.
The Two Stage Air Compressor ThermoFlux – 7092 is a laboratory trainer designed to enable students to study the operating characteristics and thermal behaviour of a two-stage reciprocating compressor with intercooling. This two stage air compressor is equipped with a water-cooled intercooler, orifice-type flowmeter, pressure vessels, and digital instrumentation across both compression stages, providing a complete platform for compressor performance and efficiency analysis.
Product Overview
The Two Stage Air Compressor ThermoFlux – 7092 consists of a two-cylinder V-arrangement reciprocating compressor with a water-cooled intercooler between the first and second stages. Air is drawn from atmosphere into an intake vessel, which stabilizes the intake pressure. An orifice-type flowmeter at the intake measures the incoming airflow rate. After the first stage of compression, air passes through the water-cooled intercooler, which stabilizes pressure by controlling temperature before feeding into the second stage. The second stage compresses the air and delivers it to a final storage pressure vessel.
The compressor operates at a power consumption of 2.2 kW with a variable speed of 0 to 900 rpm and an intake capacity of 200 L/min. The operating pressure is 12 bar with a maximum of 20 bar. The pressure vessel has a capacity of 200 L, an operating pressure of 8 bar, and a maximum pressure of 12 bar. It is fitted with a safety valve, control valve, and outlet silencer.
Sensors measure pressures and temperatures across both stages as well as electric power consumption. All measured values are shown on digital displays. Analogue pressure gauges are also provided for direct visual reference. Measured values can be transmitted to a PC via USB (optional). Safety devices including pressure relief valves and pressure switches are fitted throughout the trainer. The optional software enables recording of compressor characteristics and representation of the compression process in a p-V diagram.
Two Stage Air Compressor ThermoFlux – 7092, Technical Specifications
| Parameter | Value |
|---|---|
| Compressor Type | Two-stage reciprocating |
| Cylinder Arrangement | 2 cylinders, V-arrangement |
| Power Consumption | 2.2 kW |
| Speed | 0 to 900 rpm |
| Intake Capacity | 200 L/min |
| Operating Pressure | 12 bar |
| Maximum Pressure | 20 bar |
| Intercooler Type | Water-cooled |
| Pressure Vessel Capacity | 200 L |
| Pressure Vessel Operating Pressure | 8 bar |
| Pressure Vessel Maximum Pressure | 12 bar |
| Pressure Vessel Fittings | Safety valve, control valve, outlet silencer |
| Differential Pressure Measuring Range | -0.5 to 3 in WC |
| Pressure Measuring Range | 1x 0 to 4 bar / 2x 0 to 16 bar |
| Temperature Measuring Range | 7x -100 to 400°C |
| Power Measuring Range | 0 to 5000 W |
| PC Connectivity | USB port (optional) |
| Safety Devices | Pressure relief valves, pressure switches |
Technical Data
Compressor
| Parameter | Value |
|---|---|
| Type | Two-stage reciprocating |
| Cylinder Arrangement | 2 cylinders, V-arrangement |
| Power Consumption | 2.2 kW |
| Speed | 0 to 900 rpm |
| Intake Capacity | 200 L/min |
| Operating Pressure | 12 bar |
| Maximum Pressure | 20 bar |
Intercooler
| Parameter | Value |
|---|---|
| Type | Water-cooled |
| Position | Between first and second compression stage |
Pressure Vessel
| Parameter | Value |
|---|---|
| Capacity | 200 L |
| Operating Pressure | 8 bar |
| Maximum Pressure | 12 bar |
| Fittings | Safety valve, control valve, outlet silencer |
Intake Vessel
| Parameter | Value |
|---|---|
| Function | Intake pressure stabilization |
| Flow Measurement | Orifice-type flowmeter |
| Instrumentation | Pressure sensor, temperature gauge with digital display, analogue pressure gauge |
Measuring Ranges
| Parameter | Value |
|---|---|
| Differential Pressure | -0.5 to 3 in WC |
| Pressure | 1x 0 to 4 bar / 2x 0 to 16 bar |
| Temperature | 7x -100 to 400°C |
| Power | 0 to 5000 W |
Safety Devices
| Parameter | Value |
|---|---|
| Protection Type | Pressure relief valves, pressure switches |
Key Features
- Two Stage Air Compressor Type: Two-stage reciprocating, 2 cylinders, V-arrangement
- Power Consumption: 2.2 kW
- Compressor Speed: Variable, 0 to 900 rpm
- Intake Capacity: 200 L/min
- Operating Pressure: 12 bar, maximum 20 bar
- Intercooler: Water-cooled, positioned between first and second stage
- Intake Vessel: Pressure stabilization with orifice-type flowmeter, pressure sensor, temperature gauge
- Pressure Vessel Capacity: 200 L, operating 8 bar, maximum 12 bar
- Pressure Vessel Fittings: Safety valve, control valve, outlet silencer
- Temperature Measurement: 7x sensors, range -100 to 400°C
- Pressure Measurement: 1x 0 to 4 bar / 2x 0 to 16 bar, with both digital and analogue display
- Differential Pressure Range: -0.5 to 3 in WC
- Power Measurement Range: 0 to 5000 W
- Instrumentation: Digital displays for all sensor readings
- Safety Devices: Pressure relief valves and pressure switches throughout
- PC Connectivity: USB port for data transmission (optional)
- p-V Diagram: Compression process representation via optional software
- Software: Optional LabVIEW-based DAQ software, Windows compatible
Experiments
- Understanding the different components and function of a two-stage reciprocating compressor
- Measurement of airflow rate, pressures, and temperatures at different compression stages
- Determination of volumetric and isothermal efficiency
- Compression process representation on a p-V diagram (optional)
Construction and Design
The Two Stage Air Compressor ThermoFlux – 7092 is built around a two-cylinder V-arrangement reciprocating compressor rated at 2.2 kW with a variable speed of 0 to 900 rpm. Air enters from atmosphere into an intake vessel that stabilizes incoming pressure. An orifice-type flowmeter, pressure sensor, digital temperature gauge, and analogue pressure gauge are fitted at the intake vessel. After the first compression stage, air passes through a water-cooled intercooler, which controls temperature and stabilizes pressure before the second stage. The second stage delivers compressed air to a 200 L pressure vessel rated at 8 bar operating pressure and 12 bar maximum, equipped with a safety valve, control valve, and outlet silencer.
Seven temperature sensors covering -100 to 400°C, pressure sensors across ranges of 0 to 4 bar and 0 to 16 bar, a differential pressure sensor (-0.5 to 3 in WC), and a power sensor (0 to 5000 W) instrument both stages of this two stage air compressor. All measured values are shown on digital displays. Analogue pressure gauges provide additional direct visual indication. Safety devices including pressure relief valves and pressure switches are installed throughout. Measured values can be transmitted to a PC via USB port when the optional DAQ software is used.
Software
ThermoFlux – 7092 Software (Optional)
- Developed in the National Instruments LabVIEW environment
- Designed specifically for data acquisition with this apparatus
- Records, stores, and calculates experimental results including compressor characteristics and p-V diagram
- A set of electronic sensors is included when the software option is selected
- Compatible with any Windows operating system
- Data transmitted to PC via USB port
Scope of Delivery
- 1 experimental unit
- 1 set of hoses
- 1 instruction manual
Q1: What type of compressor is used in the Two Stage Air Compressor ThermoFlux – 7092?
The unit uses a two-stage reciprocating compressor with two cylinders in a V-arrangement, rated at 2.2 kW with a variable speed of 0 to 900 rpm and an intake capacity of 200 L/min.
Q2: What is the purpose of the water-cooled intercooler in this two stage air compressor?
The water-cooled intercooler is positioned between the first and second compression stages. It controls the air temperature and stabilizes pressure before the air enters the second stage, enabling the study of thermal effects during multi-stage compression.
Q3: What are the pressure and capacity ratings of the storage pressure vessel?
The pressure vessel has a capacity of 200 L, an operating pressure of 8 bar, and a maximum pressure of 12 bar. It is fitted with a safety valve, control valve, and outlet silencer.
Q4: What safety devices are fitted to the trainer?
The trainer is equipped with pressure relief valves and pressure switches throughout to protect against over-pressure conditions.
Q5: Is the p-V diagram functionality included as standard?
No. Recording and representing the compression process on a p-V diagram requires the optional ThermoFlux – 7092 DAQ software, which connects to a PC via USB port and runs in a LabVIEW environment on any Windows operating system.
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