Sodium Sulphate Formation and Deposition in Marine Gas Turbines

[+] Author and Article Information
V. I. Hanby

Deportment of Chemical Engineering and Fuel Technology, University of Sheffield, England

J. Eng. Power 96(2), 129-133 (Apr 01, 1974) (5 pages) doi:10.1115/1.3445760 History: Received July 30, 1973; Online July 14, 2010


The rate of formation of gaseous sodium sulphate from sodium chloride and the combustion of a sulphur-bearing fuel has been investigated in a controlled mixing history combustor. The reaction was studied in the residence time range 0–16 millisec to simulate conditions resembling those in a gas turbine combustion chamber. The results show that under the conditions investigated, gas temperature was the most significant variable affecting the reaction rate. Gas phase formation of sodium sulphate proceeds too slowly to contribute to sulphatic corrosion in the short residence times which occur in gas turbine combustion chambers. The results obtained, in conjunction with predictions of salt particle behavior in the gas turbine engine indicate that the deposition process on turbine blades occurs via passage of transient high concentrations of particles through the engine.

Copyright © 1974 by ASME
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