Fouling Due to Corrosion Products Formed on a Heat Transfer Surface

This paper is concerned with a type of fouling that has received very little attention int eh past in spite of its importance to designers and operators of heat trasnfer equipment, namely, the foulilng due to corrosion products that form on heat trasnfer surfaces exposed to flowing water. The lack of previous interest probably arises from uncertainty about the importance of this type of fouling. For this reason it is the objective of the research described in this paper to obtain quantiative information on the thermal resistance associated with corrosion fouling, and to compare it to thermal resistance values reported for other categories of fouling. The tests were made with the following conditions comparable to those found in industrial heat transfer equipment: the temperature of the heat transfer surface, material of the heat transfer surface, and the following properties of the water: oxygen content, pH, and temperature.