The followings can drastically reduce the amount of heat transfer between the refrigerant & the cooling water at the condenser :

1. Sea water side fouling of the tubes.

2. Growth of barnacles – restricting optimum cooling water flow.

resulting in:

1. the refrigerant in the condenser not achieving liquid state with desired degree of subcooling.

2. more refrigerant Flashing Off at the TEV – waste of energy.

3. reduction in the refrigerating effect.

4. reduction in Coefficient of Performance of the system.

5. increase in compressor running hours.