Experiments

  • Learn about refrigeration systems that use a steam jet compressor instead of a mechanical one.
  • Clockwise Rankine Cycle: This involves pumping water to high pressure, heating it to produce steam, expanding the steam in a turbine (ejector), and then condensing it back into water.
  • Anticlockwise Rankine Cycle: This cycle starts with high-pressure steam expanding in a turbine (ejector), cooling and condensing into liquid form, then being pumped back to high pressure before being reheated.
  • Understand how to account for energy inputs, outputs, and storage within a system.
  • Calculating the refrigeration circuit’s performance coefficient & efficiency
  • Calculating the heating circuit’s performance coefficient & efficiency
  • Thermodynamic cycle in the p-h diagram
  • Investigation of operating behavior under load
  • Understanding of refrigeration using solar thermal vapor jets
  • Vapor jet method-based solar refrigerating plant components
  • Operation of a vapor jet compressor on a solar thermal flat collector
  • Optimization of the operating point
  • A better idea for using thermal solar plants
  • Controlling the energy used by solar thermal cooling systems
  • Examining the functions played by the solar circuit and flat collector
  •  Acquiring the net power
  • Examining the relation between flow and net power
  • Acquiring the collector efficiency
  • Examining the relation between temperature differences in the surroundings and the collector and the efficiency of the collector

Specification

  • The apparatus is positioned on a four-wheeled rigid frame.
  • Investigation of a steam jet compressor
  • Condenser, evaporator, and steam jet compressor for refrigerant in the refrigeration circuit.
  • Steam circuit for the steam jet compressor that includes a pump and steam generator
  • Transparent tank with water-cooled pipe coil as condenser
  • Transparent tank with adjustable heater as evaporator & load
  • Float valve serving as an expansion element in a flooded evaporator
  • Steam generator with electrically heated water jacket
  • Measuring current and volts to calculate the evaporator’s power
  • R1233zd(E) refrigerant

In contrast to conventional compression refrigeration systems, the Steam Jet Refrigeration System operates without a mechanical compressor, instead using a steam jet-based compressor. This design allows it to leverage various heat sources, such as solar energy or waste heat from processes, to generate cooling. The system features two separate refrigerant circuits: one for refrigeration (the refrigeration cycle) and the other for generating the motive steam (the steam cycle). In the refrigeration cycle, refrigerant steam is compressed by the steam jet compressor before being directed to the condenser. This condenser, which is a clear tank equipped with a water cooled pipe coil, facilitates the condensation process. During the refrigeration cycle, part of the condensed refrigerant flows into an evaporator connected to the intake of the steam jet compressor. This evaporator is a flooded type, where a float valve maintains a constant level of refrigerant. The refrigerant absorbs heat from a heater or the ambient environment, evaporates, and is then separated and recompressed by the steam jet compressor. In the steam cycle, the remaining portion of the condensate is pumped into a steam generator, where it is evaporated in an electrically heated tank with a water jacket. The steam jet compressor is driven by the vapor produced in this process. The system includes various sensors to measure and display key parameters like temperature and pressure. Additionally, the heater power for the evaporator can be adjusted, and a valve regulates the flow rate of the cooling water in the