Research of the Effect of Salt Deposits on Heat Transfer during Natural Air Convection

The article is devoted to an actual problem of heat transfer decrease due to deposit formation on heat transfer equipment walls. A new heat transfer similarity number of deposit formation that can describe its thermal and electric nature is presented here. New methods of experimental studies under free air convection with deposit on the heat transfer surface are given and dis-cussed. The deposit was as a dense wet mass of NaCl salt. A new criterion equation for natural convection conditions of air has been obtained and shown in the article. It is possible to state that new methods of heat transfer calculation while appearing deposits based upon the created heat transfer similarity number of deposit formation have been successfully developed.