Water Cooled Condenser Temperature Difference

How the condenser cools the refrigerant determines the key difference between water cooled and air cooled chillers.

Water cooled condenser temperature difference. Air cooled chillers have condensers that use ambient air to cool hot refrigerant. Small systems are almost always air cooled since the extra requirements of water treatment and maintenance are. 35 10 20 c 50 c according to the temperature and pressure table it is easy to find that the evaporation pressure at this time is about 3 05 mpa absolute pressure r410a refrigerant. Condenser water temperature cooling towers are generally selected to supply 85 f water to the chiller condenser at design conditions i e when th e ambient wet bulb temperature equals design and the chiller is operating at full load.

With a water cooled condenser condensing pressure should be equivalent to leaving water plus 10. Difference between water cooled chiller and air cooled chiller initial cost of air cooled chillers is lower than water cooled chillers as air cooled systems don t require cooling. Evaporation temperature 25 10 20 40 c according to the temperature and pressure table it is easy to find that the condensation pressure. This will result in less work the compressor has to do and lower kw.

This role falls to the condenser. Condenser splits when talking about air cooled condensers the temperature difference between the ambient and the condensing temperature is often referred to as the condenser split. The difference between air and water based systems begins at the condensing stage. For example if the condensing temperature is 110 degrees f and the ambient is 80 degrees the condenser split would be 30 degrees.

There should be a temperature difference of 20 to 30 between entering and leaving air. This is a common method called condenser relief. In water cooled condensers the refrigerant should condense at 5 10 k above the water inlet temperature a low value results in a not only higher cop but also higher initial costs. Differences in the condenser.

But these conditions rarely occur. Look for 10 to 15 of subcooling. Splits swings and loads in air cooled condensers the temperature difference between the ambient and the condensing temperature is referred to as the condenser split. For example if the condensing temperature is 110 f and the ambient is 80 the condenser split would be 30 110 80.

The temperature difference between condenser entering and leaving water will normally be about 10. Anytime you can provide condenser water lower than the design of 85 f 29 44 c you will lower your condenser pressure and lower the lift cond pressure evap pressure.