Conditioning of Room Air Educational Equipment Refrigerator Training Equipment

SR2045 Conditioning of Room Air Educational Equipment Refrigerator Training Equipment

Learning Objectives / Experiments

– Air conditioning of room air

* set-up of an air conditioning system: main components and their function

* variables in air conditioning

* measure temperature and air humidity

* effect of the air flow

* changes of state in the h-x diagram

– Set-up of a refrigeration system: main components and their function

– Measurements in the refrigeration circuit

* cyclic process in the log p-h diagram

* determine heating and cooling capacities

Specification

[1] Effect of typical air conditioning system components on the conditioning of room air

[2] Air conditioning system with open air duct

[3] Air conditioning system with air cooler, steam humidifier, fan, air preheaters and reheaters

[4] All components can be switched on and off individually

[5] Determination of the air flow by differential pressure measurement using an inclined tube manometer

[6] Combined sensors for the air humidity and temperature before and after each stage

[7] Sensor for the pressure and temperature of the refrigerant

[8] Data acquisition with LabVIEW software under Windows XP or Windows Vista via USB

[9] Software with representation in the log p-h and h-x diagram

[10] Refrigerant R134a, CFC-free

Steam humidifier

– power consumption: 4kW

– steam capacity: 5,5kg/h, switchable in three stages

Fan

– power consumption: 190W

– max. volume flow: 810m³/h

– speed: 500…1150min-1

– dpmax: 420Pa

Air preheater: 2kW, switchable in two stages

Air reheater: 1kW, switchable in two stages

Air duct, WxH: 300x350mm

Direct evaporator as air cooler: 6kW

Condensing unit

– power consumption: 968W at 5/25°C

– refrigeration capacity: 2,3kW at 5/25°C

Measuring ranges

– differential pressure (air flow): 0…100Pa

– temperature: 5x 0…50°C, 4x -100…200°C

– humidity: 5x 0…100%

– pressure (refrigerant): 2x 0…16bar

– flow rate (refrigerant): 8…102L/h

Dimensions and Weight

LxWxH: 2565x790x1750mm

Weight: approx. 180kg

Connections

400V, 50Hz, 3 phases or 230V, 60Hz, 3 phases

Water connection and drainage