Computer Linked A/C Teaching Equipment

Computer Linked A/C Unit is designed for practical teaching and demonstration of the working principles of air conditioning systems. It provides air cooling through a vapor compression refrigeration system with measurement of pressure, temperature and refrigerant flow.

The system allows students to construct a complete refrigeration cycle diagram and perform an energy balance of the refrigerant system against the energy transfer on the air side. Instrumentation enables the electrical power supplied to individual resistive loads to be measured and compared with the air enthalpy change and mass flow.

The base unit consists of a variable-speed air blower discharging into a 250 mm square air duct. The duct incorporates a steam humidifier, electrical pre-heater, direct expansion cooling coil/dehumidifier, electrical re-heater and orifice plate for airflow measurement.

The complete air conditioning laboratory unit is mounted on a frame with castor wheels and supports both manual measurement and computer-linked data analysis. It is suitable for studying psychrometric processes, vapor compression refrigeration systems and thermodynamic properties of air.

Manufactured by Atico Export with a focus on precision, durability and consistent performance for technical education and practical training applications.

Airflow System :

• Variable-speed radial-acting axial-flow fan
• Air duct size: 250 × 250 mm
• Adjustable airflow: at least 0.15–0.2 m³/s
• Orifice plate for airflow measurement

Air Conditioning Components :

• Steam humidifier
• Electrical pre-heater
• Direct expansion cooling coil/dehumidifier
• Electrical re-heaters
• Vapor compression refrigeration system

Heating and Humidification :

• Switchable heating: up to 5 kW
• Switchable steam injection: 5 kW electrical equivalent

Cooling System :

• Fully instrumented vapor compression refrigeration cycle
• Nominal cooling capacity: 2.5 kW
• Pressure, temperature and refrigerant flow measurement

Psychrometric Measurement :

• Psychrometric conditions measured before and after each process
• High-precision wet and dry bulb sensors

Learning Objectives :

• Study the end-state properties of each air conditioning component
• Study the vapor compression refrigeration system
• Determine thermodynamic properties
• Analyze air conditioning and psychrometric processes
• Perform energy balance calculations between the refrigerant and airside systems

• Demonstration of the working principles of air conditioning systems
• Manual measurement and computer-linked data analysis
• Vapor compression refrigeration system for air cooling
• Measurement of pressure, temperature and refrigerant flow
• Construction of a complete refrigeration cycle diagram
• Energy balance of the refrigerant system against airside energy transfer
• Variable-speed air blower
• Air humidifier
• Air pre-heater
• Air cooler/refrigerator
• Air re-heater
• Electrical power measurement for individual resistive loads
• Balancing of electrical power against air enthalpy change and mass flow
• Complete instrumented air conditioning laboratory unit
• Frame-mounted construction with castor wheels