Surface interactions and deposit growth in fouling of heat exchangers

• Type: Other Publications
• Date: 1993

Authors

Oliveira, R (Author) Other; L. F. Melo (Author) Other; Pinheiro, M (Author) Other; Vieira, MJ (Author) Other

Other information

Authenticus ID: P-008-P3F

Abstract (EN): The paper reviews the basic mechanisms of fouling, emphasizing their role in determining the overall fouling rate. Mass transfer, adhesion, chemical or biological reactions can be the rate limiting processes depending on the design and operating conditions of the heat exchanger. Reference is made to the most common types of fouling, particularly in water systems, and to their interaction with corrosion of metallic surfaces. Special attention is devoted to adhesion, since the formation of fouling layers is primarily a surface process. The main forces of adhesion and the methods for predicting adhesion tendencies are reviewed. The paper presents and discusses data obtained in laboratory studies on fouling caused by inorganic particles, by microroganisms, and also by both of these types of foulants acting simultaneously. Data on the effects of fluid velocity, temperature and surface material are also presented and discussed. (from Authors)

Language: English

Type (Professor's evaluation): Scientific