Fouled Condenser: Causes and Solutions

What does higher-than-normal discharge pressure and higher-than-normal temperature difference indicate in a water-cooled condenser?

A. Low water flow

B. Biological fouling

C. Fouled condenser

D. Scaling on tubing

Answer:

Higher-than-normal discharge pressure and temperature difference in a water-cooled condenser indicate a fouled condenser.

When a water-cooled condenser exhibits higher-than-normal discharge pressure and temperature difference, it is a clear indication that the condenser is fouled. A fouled condenser refers to a situation where the condenser tubes are coated with deposits, such as dirt, organic matter, or mineral scale. These deposits hinder the efficient transfer of heat in the condenser, resulting in the observed symptoms.

The higher discharge pressure indicates that the refrigerant is not condensing properly within the condenser. This can lead to reduced cooling capacity and potential damage to the system if not addressed promptly. On the other hand, the higher temperature difference points to a compromised heat transfer process, where the heat from the refrigerant is not effectively transferred to the cooling water.

To resolve this issue, the fouled condenser needs to be cleaned thoroughly to remove the accumulated deposits. Regular maintenance and cleaning of the condenser can help prevent such problems and ensure the optimal performance of the cooling system.