Description
This training unit allows students to investigate air conditioning at a basic level. Students can use Pressure Enthalpy and Psychrometric charts for their calculations and discover the enthalpy change. The unit features an air-cooled condenser unit connected to an evaporator located in an air duct. The air duct contains relative humidity and temperature sensors on both sides of the evaporator. A small fan provides air flow down the duct and air flow rate can be manually adjusted. The refrigeration circuit features high and low pressure gauges, a pressure switch, sight glass, filter dryer and TEV valve. The circuit also includes pressure transducers that connect to the instrumentation. Four thermocouples placed around the refrigeration circuit allow observation of temperatures, these can be used for the calculation of potential super heating and sub-cooling.
Learning Outcomes
- Learn to use Psychrometric charts
- Determine enthalpy change in the air flow
- Learn to use a Pressure-Enthalpy chart
- Determine superheat and sub-cooling
- Determine Coefficient of Performance (COP)
- Determine isentropic and non-isentropic efficiencies of compression stage
- Investigate the effect of air flow rate on COP
Features
- Pressure and temperature measurements taken around the refrigeration circuit
- Relative humidity and temperature measured upstream and downstream of the evaporator
- LCD display of all measured parameters
- Connectivity included featuring data acquisition via USB
- Software allows students to visualise experimental parameters using Psychrometric and Pressure-Enthalpy charts
- Refrigeration circuit colour-coded to internatinal standards
Specifications
- ATICO is committed to a programme of continuous improvement; hence we reserve the right to alter the design and product specification without prior notice.
- Approx nett dimensions and weight:
- 1020 mm wide x 600 mm front to back x 860 mm high and mass approx 72 kg
Operating Conditions
- Operating Enviroment:
- Laboratory
- Storage Temprature Range :
- –25°C to +55°C (when packed for transport)
- Operating Temprature range:
- +5°C to +30°C
- Operating relative humidity range:
- 80% at temperatures < 30°C
