January 18, 2021
Authors: Edward S. Beardwood, George F. Hays, Proceedings of an International Conference on Mitigation of Heat Exchanger Fouling and Its Environmental Implications, Banff, Alberta, Canada, July 1999, pages 77-83, Begell House Inc. Copyright 2001, ISBN 1-56700-172-6
ABSTRACT: Performance based monitoring and additive control is a novel approach to the cost-effective protection of cooling water system efficiency and economic life. Traditional open recirculating cooling water control utilizes feedback control of pH and conductivity together with a feed forward signal from a make-up water meter to control system chemistry. This paper covers the superimposition of cascade control based on performance parameters, corrosion and fouling, as a means to refine control and optimize results. The results are further enhanced via the inclusion of Artificial Intelligence (a.i.) logic to make direct real-time control and to integrate all the logic into a single control system. Performance based control is thus a significant improvement over existing industry norms.