Views: 0 Author: Site Editor Publish Time: 2026-07-16 Origin: Site
In the refrigeration system, high-temperature, high-pressure superheated refrigerant vapor enters the microchannel condenser, releasing heat in two steps:
1. The refrigerant releases heat to the air, cooling from a high-temperature gaseous state to a saturated gas;
2. Continuing to release heat, the saturated vapor liquefies into a high-pressure, room-temperature liquid refrigerant, completing the condensation process.
An air-side fan forces airflow, carrying away heat from the heat exchanger surface and continuously maintaining the temperature difference for heat exchange.
Microchannel core components: Header + Flat, porous microchannel tubes + Corrugated aluminum fins
1. Inlet Distribution (Inlet Header): High-temperature, high-pressure refrigerant gas exits the compressor and enters the header on one side. The header evenly distributes the gas to dozens of parallel microchannel tubes.
The interior of each tube is filled with dozens of 0.5~2mm microchannels, cutting the refrigerant into multiple fine streams.
2. Enhanced Refrigerant Heat Transfer Inside the Tubes (Core Advantage): The tiny channels significantly increase the contact area between the refrigerant and the tube wall, increasing refrigerant turbulence and resulting in a heat transfer coefficient far greater than that of ordinary round tubes with fins; high-temperature refrigerant heat is rapidly transferred to the aluminum tube walls.
3. Air-Side Heat Dissipation: Ultra-thin corrugated aluminum fins are welded between the tubes, expanding the air heat exchange area; cool outdoor air passes through the fins, carrying away heat from the tube walls.
The refrigerant continuously cools, gradually changing from superheated gas → saturated vapor → liquid refrigerant.
4. Manifold Output (Outlet Manifold) The liquefied high-pressure liquid refrigerant is collected in the manifold on the other side and flows out of the condenser to the liquid receiver/expansion valve.
