Heat exchangers in the refrigeration circuit

Heat exchangers are an elementary part of refrigeration systems. During cooling they are used to absorb the energy of the refrigerant by evaporation. During heating they discharge the energy set free during the condensation of the refrigerant. They are also used for internal energy transfer during superheating or supercooling of the refrigerant.

• refrigeration system with 4 different heat exchangers: coaxial coil heat exchanger, finned tube heat exchanger, tubular heat exchanger, plate heat exchanger
• combinations of different media: water / refrigerant, refrigerant / refrigerant, air / refrigerant
• water circuit with tank and pump to cool the condenser and heat the evaporator
• superheater can be disabled via bypass
• flow meter and thermometer in the water circuit to determine the exchanged energy fluxes
• flow meter for measuring the refrigerant flow
• thermometers at all relevant points
• refrigerant R513A, GWP: 631