Abstract
The rapid growth of air conditioning, particularly in urban areas, has multiplied cooling water corrosion problems. The effectiveness of corrosion control by chemical inhibitors in these systems is subject to non-chemical factors to a degree not usually encountered in the larger industrial cooling systems. These considerations include economic, mechanical, human and legal factors. The use of untrained personnel for equipment operation and maintenance can restrict the choice of inhibitor or negate an otherwise satisfactory corrosion control program, as well as increase safety hazards.
Selection of the inhibitor and its use are restricted in many cases by legal requirements pertaining to cross-connections, water conservation, or waste disposal. Equipment location, rarely considered from the viewpoint of maintenance and corrosion control, is frequently a factor in the choice of inhibitor and in its effectiveness.
Attempts to keep equipment and operating costs low frequently have secondary effects upon corrosion control. 4.6.4
