Development of the Deposit Formation Similarity Criterion with the Electrochemical Number

This paper studies an actual problem of the appearance of a deposit on walls of heat-exchange devices. An improved deposit formation number is presented that describes the heat and electrochemical nature of any deposit. A new criterion equation for the free convection of air when a salt deposit appears on a heated-up surface is successfully obtained and shown in the paper. New methods of the heat transfer calculation during the formation of deposits based upon the improved heat transfer similarity criterion of deposit formation are developed.