HVAC engineers

THE REFRIGERATION CYCLE -  How Cooling Actually Works The refrigeration cycle is the backbone of modern HVAC systems. It is a continuous thermodynamic process that removes heat from a low-temperature space and rejects it to a higher-temperature environment using a refrigerant.  Key Concept:  Cooling is not about creating cold - it's about transferring heat.  MAIN COMPONENTS OF THE SYSTEM   Compressor  Condenser  Expansion Valve  Evaporator  These four components work together to circulate refrigerant and maintain the cooling effect.  STEP-BY-STEP WORKING PROCESS   1 EVAPORATION (Heat Absorption)  The refrigerant enters the evaporator as a low-pressure, low-temperature liquid-vapor mixture. It absorbs heat from the surrounding space (air or water) and completely evaporates into vapor. ✓ Result: The surrounding area becomes cool.  2 COMPRESSION (Pressure Increase)  The compressor draws in low-pressure vapor and compres...