Trane TRG-TRC011-EN manual Condenser

period one

Absorption Refrigeration Cycle

notes

refrigerant vapor

condenser

cooling water

liquid refrigerant

Figure 13

Inside the condenser, cooling water flows through tubes and the hot refrigerant vapor fills the surrounding space. As heat transfers from the refrigerant vapor to the water, refrigerant condenses on the tube surfaces. The condensed liquid refrigerant collects in the bottom of the condenser before traveling to the expansion device.

In absorption water chillers, the cooling water system is typically connected to a cooling tower.

liquid

evaporatorrefrigerant

expansion device

Figure 14

From the condenser, the liquid refrigerant flows through an expansion device into the evaporator. The expansion device is used to maintain the pressure difference between the high-pressure (condenser) and low-pressure (evaporator) sides of the refrigeration system. In this example, the expansion device is a throttling pipe, which is a long section of pipe with an orifice restriction in it. It creates a liquid seal that separates the high-pressure and low- pressure sides of the cycle.

TRG-TRC011-EN 11