Experiment of fouling growth characteristics in sewage heat exchangers

Presents the inspecting methods of fouling growth and inspects in real time the growth of fouling in the sewage heat exchangers in Harbin Wangjiang hotel and Beijing Yuedu hotel. Obtains the variation pattern of the fouling heat resistance with time, the relations between the balance thickness of fouling and the velocity and between the heat resistance of the heat exchanger and the velocity, and a ratio of the total heat transfer coefficient before fouling forming to that after fouling forming.