Computerized Refrigeration Circuit with Variable Load

About Computerized Refrigeration Circuit with Variable Load

The data acquisitionSystem includes the following sensors:

 

1)8 temperaturessensors connected to the supervision system at:

a)Expansion valveinlet and Outlet b)Compressor inlet and Outlet

c)Condenser inletoutlet

d)Evaporator Inletand outlet

2)2 pressure sensors

a)Low pressure(inlet compressor)

b)High pressure(outlet compressor)

3)1 electrical powerconsumption of the compressor

4)1 Electrical powerconsumption of load

 

The software isdivided in two parts. The first part is the schematic diagram with the displayof all the data, the second is the graph (plot the data in real time)

 

Total Equipment isskid mounted in SS 40 x40 Frame Structure with Castor wheels. All wetted partsalso made of SS-304

Compressor

Refrigerationcapacity: approx. 479W at 7,2/54,4C

power consumption:168W at 7,2/54,4C

Evaporator

Refrigerant volume:0,4L

Water volume:0,8LCondenser

Transfer area:approx. 1,25m2

Fan powerconsumption: 4x 12WPump

Max. flow rate:1,9m3/h

Max. head: 1,4mTank

Volume: approx. 4,5L

Heater: approx.450WRefrigerant: R134A Filling volume: 800gMeasuring ranges Pressure: 2x-115bar

Power: 0750W

Temperature: 6x0100C

Flow rate:

Water 0,051,8L/min

Refrigerantcalculated 017kg/h

Touch screen basedFully automatic system with password protection Data acquisition should beRemotely operated by Smart phone, Tablets, PC,

laptops via Ethernetand Wi-fi

Should be equippedwith all safety protections Flow visualization should be available in the DAQSystem

Should be equippedwith both manual and auto operation

Power consumption ofindividual system, all sensors data should be display and logged automatically

System should havesoftware for operating, data logging, processing and data displayingPerformance variables (e.g., Heating/Cooling COP, Heating / Cooling load etc..)should be automatically calculated and displayed and should be stored in pendrive also along with PC. Instruments should be provided with 3D drawing ofcomplete equipment along with the name and make of all standard components usedin the test rig

Each rig should have small aestheticallyappealing poster with schematic diagram and basic working detail. 

Advanced Variable Load Design

Harness precise electronic load control, adjustable from 20% to 100% (up to 1200 W), enabling seamless simulation of diverse operating scenarios for both performance testing and educational analysis. The integrated PID control maintains stability and replicates real-world operation, essential for comprehensive laboratory investigations and demonstrations.


Flexible Component Configuration

Select from rotary or reciprocating hermetically sealed compressors and alternate between various refrigerants such as R134a, R22, or R404a based on experimental needs. Swappable evaporators (fin & tube or plate) and accessible test points allow hands-on learning about different cycle arrangements and their impact on refrigeration efficiency.


Comprehensive Data Capture & Safety

Real-time sensor data-temperature, pressure, and more-is transmitted to a PC for logging, visualization, and report generation. The advanced safety suite includes high/low pressure cutout, over-temperature trip, and earth leakage protection, ensuring secure operation in all laboratory environments.