Do you major in HVAC or Refrigeration Technology?
1. Within the evaporator, refrigerants take the thermal energy of the air and go through the compressor then into the condenser. After that, within the condenser refrigerants transfer the thermal energy to the air, and go through the expansion valve then back to the evaporator.
2. No way. After opening the door, inside the refrigerator, refrigerants take the thermal energy of the kitchen air and go into the condenser, then transfer the thermal energy back to the kitchen air again. As a result, the thermal energy has not been moved out of the kitchen.
3. By exchanging the places of the evaporator and the condenser, refrigerants take the thermal energy of the air outdoor by the evaporator, and then transfer it to the air indoor by the condenser. In terms of Heating Ventilating and Air-Conditioning, we call it Heatpump.
