Reciprocating Compressor Test System
The Reciprocating Compressor Test System by Atto Labware is a high-precision educational apparatus designed to study the working principles and performance characteristics of a single-stage or two-stage reciprocating air compressor. It allows students to experimentally determine volumetric efficiency, isothermal efficiency, mechanical efficiency, and overall performance under varying pressure and load conditions. Ideal for Mechanical and Thermal Engineering laboratories.
Educational Objectives
Students and researchers will be able to:
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Understand the working cycle of a reciprocating air compressor.
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Measure and compare suction and delivery pressures.
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Determine compressor efficiencies (volumetric, mechanical, isothermal).
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Plot P–V diagrams and study polytropic compression.
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Analyze power consumption and compressor performance characteristics.
Performance Measurement
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Measurement of suction and discharge pressure using pressure gauges.
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Determination of air flow rate using an orifice meter or air tank method.
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Measurement of input power with an energy meter or digital wattmeter.
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Evaluation of volumetric and isothermal efficiency.
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Observation of temperature variations at suction and discharge points.
Panel and Instruments / Components
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Compressor Unit: Single-stage or two-stage reciprocating compressor, belt or direct-driven.
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Electric Motor: 1 HP / 1.5 HP variable-speed motor with energy meter.
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Air Receiver Tank: Fitted with safety valve, pressure gauge, and drain valve.
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Air Flow Measurement: Orifice meter with differential manometer.
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Temperature Sensors: RTD or thermocouple sensors for suction and discharge temperature.
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Control Panel: Includes digital indicators for temperature, pressure, and power measurement.
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Safety System: Pressure relief valve and overload protection.
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Frame Construction: Rigid powder-coated structure with vibration-damping mounts.
Specifications (Includes Technical Data)
| Feature | Detail |
|---|---|
| Type | Single or Two-Stage Reciprocating Compressor Apparatus |
| Compressor Capacity | 0.5 – 1 CFM (Typical) |
| Motor Power | 1 HP, 230 V AC, Single Phase |
| Air Receiver Volume | 50 L (Approx.) |
| Pressure Range | 0 – 10 bar |
| Flow Measurement | Orifice Meter with Manometer |
| Temperature Sensors | RTD / Thermocouple (0–150 °C) |
| Power Measurement | Digital Wattmeter / Energy Meter |
| Cooling System | Natural or Air Cooled |
| Working Fluid | Air |
| Frame Material | Mild Steel, Powder-Coated |
| Dimensions | 1500 mm L × 600 mm W × 1000 mm H |
| Weight (Approx.) | 70 kg |
Note: Optional computer-based data acquisition system available for real-time performance monitoring and analysis.




