Lyophilization trainer


This trainer, specifically conceived for educational aims, allows to study the lyophilization process that is the best system for preserving perishable goods. It allows to determine the optimum cycle, for quality and cost, of any product by using vacuum to keep the temperature of the product itself lower than its eutectic temperature.

Training program

  • Plant starting and safety devices intervention checking
  • Determining the eutectic temperature of a substance
  • Control of product internal and surface temperature during the lyophilization process and determination of the optimum cycle for each product
  • Studying the operation of a thermostatic expansion valve and its calibration
  • ON/OFF control: the compressor thermostat
  • Analyzing the system behaviour versus the variation of:
    • thermostatic valve superheat – condenser fan intervention pressure
    • set vacuum degree
    • thermostat set-point temperature
  • Plotting the cycle in the refrigerant pressure-enthalpy diagram
  • Data acquisition and calculation of:
    • heat balances corresponding to evaporator, condenser, compressor
    • refrigerant mass flow
    • ideal and actual EER
    • volumetric compression efficiency

Technical specifications
Supply with