Air-Cooled Condenser: Cascade air cooled condensers

Air-Cooled Condenser

Air-cooled condensers are fairly common in commercial systems. Cooling water may be too expensive or corrosive gases. Smaller units use static condensers with a heat air flow. Large capacitors can be chilled big fan built on the motor or in the compressor handwheel onto the external drive units, Large sealed units use separate motors for fan drive. The fan efficiency can be increased by placing a metal shell around an air-cooled condenser. On Fig. 13-35, with air-cooled condenser are two fan. Air can be drawn induced (led), or forced across the capacitors. These capacitors have fins and often use double or triple the number of pipes. Many fin mechanisms and structures were used.

For cooling compressor head and valves, dual air cooled condenser is sometimes used. The refrigerant leaves the compressor goes through one capacitor. Then they led him back through the motor-compressor, to help cool him. From there it goes into the second capacitor, where it condenses (chilled) in the liquid.

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