Basic Boiler Principles
Basic Boiler Principles
Water and solids enter the boiler
Water leaves the boiler as steam
Solids concentrate in the boiler
Therefore the boiler water will contain more solids than the feedwater
This Concentrating effect is called The Cycles of Concentration or The Cycles
A boiler can only tolerate a specific number of cycles of concentration, This will vary depending on:-
1.) Type and pressure of the boiler
2.) Type of external treatment
3.) Percentage condensate return
The chemical factors which limit the boiler water cycles of concentration are
1.) Suspended solids (Total Hardness)
2.) Dissolved solids
3.) Total alkalinity (M Alkalinity)
4.) Silica
