Скачать или смотреть Condenser in the Refrigeration Cycle Explained | P-h Diagram, Sensible & Latent Heat

Snippet from my HVAC Training Course

In this short clip from the course, I explain the role of the condenser in the refrigeration cycle and how we analyze it using the Pressure–Enthalpy (P-h) diagram.

Inside the condenser, the refrigerant rejects heat to the surrounding environment in two stages:

🔹 Sensible Heat Removal (Desuperheating)
The refrigerant enters the condenser as superheated vapor from the compressor. The first section of the condenser removes sensible heat, reducing the refrigerant temperature until it reaches the saturation temperature.

🔹 Latent Heat Removal (Condensation)
Once the refrigerant reaches saturation, it begins to change phase from vapor to liquid, releasing latent heat while the temperature remains almost constant.

On the P-h diagram, this process appears as a movement along the high-pressure line from high enthalpy vapor to saturated liquid.

🔹 Liquid Storage & Vapor Seal
The condenser also stores a sufficient amount of liquid refrigerant at its outlet. This stored liquid helps create a vapor seal between the condenser and the expansion device, ensuring that only liquid refrigerant reaches the expansion valve and maintaining stable system operation.

Understanding these processes is essential for engineers when analyzing system performance and diagnosing HVAC system behavior.

📚 This explanation is part of a comprehensive HVAC engineering training program.

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