Dear Mr. Pathak
About High Alkalinity correction method (treatment with ammonia only)
Appreciably this method differs from the alkaline one in that a high Ph value 9.4 -9.5 is maintained in the water condensate circuit at the expence of high ammonia concentration in water. Replacement of the brass tubes is necessary by steel tubes ( made by pearl tic grade).
Please remember at Ph>9.1 corrosion of copper tubes proceed at higher rates and concentration of copper in feedwater increases .Turbine blades are deposited with copper settles . Steam turbine efficiency decreases.
There are many effective and informative e-zine articles, E Books are available in the internet which are free to read for the above and related issues .
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