Refrigeration System with Refrigeration and Freezing Stage Model

The Refrigeration System with Refrigeration and Freezing Stage Model, consists of two separated refrigeration chambers, each one with an evaporator that can work in series or in parallel.

ATENG 12955 — Refrigeration System with Refrigeration and Freezing Stage Model

(for main items)

• With this unit there are several options and possibilities:
• Main items: 1, 2, 3, 4 and 5.
• Optional items: 6, 7, 8, 9 and 10.
• Let us describe first the main items (1 to 5):
• 1 TRAMC-UB. ATENG 12952 Unit Base:
  Bench-top unit.
  Anodized aluminum frame and panels made of painted steel.
  Main metallic elements made of stainless steel.
  Diagram in the front panel with distribution of the elements similar to the real one.
  Base unit that allows, together with the models, the performance of experiments
  for the study of the operation of refrigeration and air conditioning systems.
  Models safely coupled through refrigerant hoses with shut-off valves.
• Computer controlled hermetic compressor. Power: 3/8 HP.
• Condenser. Finned tube heat exchanger with computer controlled fan. Air flow: 580 m³/h.
• Storage vessel to prevent a wrong operation of the compressor, capacity: 0.5 l.
  Filter for the refrigerant.
  Sight glass for the refrigerant.
• Liquid separator to prevent liquid from entering the compressor, capacity: 0.73 l.
• High and low pressure switch, range: 0.7 – 4 bar for low pressure and 8 – 32 bar TRAMC-UB
  for high pressure.
• Two pressure sensors:
• Pressure measurement before the compressor. Low pressure range: 0 – 10 bar.
• Pressure measurement after the compressor. High pressure range: 0 – 25 bar.
• Refrigerant flow sensor, range: 5 – 60 l/h.
  Three temperature sensors, type “J”.
  Power sensor for the compressor.
• Low pressure manometer at the intake side (before the compressor), range: -1 – 10 bar/-50 – 40 °C.
  Two high pressure manometers in the delivery side (after the compressor and after the condenser),
• range: -1 to 30 bar/ -40 – 80 °C.
  Enthalpy diagram of R-513a.
  This unit has been designed for the use with the refrigerant R-513a, CFC-free, environmental friendly.
• The complete unit includes as well:
  Advanced Real-Time SCADA and PID Control.
  Open Control + Multicontrol + Real-Time Control.
  Specialized Control Software based on LabVIEW.
  National Instruments Data Acquisition board (250 KS/s, kilo samples per second).
  Calibration exercises, which are included, teach the user how to calibrate a sensor and the
  importance of checking the accuracy of the sensors before taking measurements.
  Projector and/or electronic whiteboard compatibility allows the unit to be explained and
  demonstrated to an entire class at one time.
  Capable of doing applied research, real industrial simulation, training courses, etc.
  Remote operation and control by the user and remote control for technical support,
  are always included.
  Totally safe, utilizing 4 safety systems (Mechanical, Electrical, Electronic & Software).
  Designed and manufactured under several quality standards.
  Optional ICAI software to create, edit and carry out practical exercises, tests, exams,
  calculations, etc. Apart from monitoring user's knowledge and progress reached.
  This unit has been designed for future expansion and integration. A common expansion is
  the Scada-Net (ESN) System which enables multiple students to simultaneously
  operate many units in a network.
• Required elements (at least one) (Not included):
• ATENG 12953. Home Refrigeration Model.
• ATENG 12955. Refrigeration System with Refrigeration and Freezing Stage Model.
• ATENG 12956. Simple Air Conditioning System Model for Room Cooling.
• ATENG 12958. Complete Air Conditioning System Model.