What is the cycle of concentration if the chloride content of boiler water is 186 ppm and the feedwater chloride content is 38 ppm?

CYC = Bch/FCh

                CYC = Bch/FCh 

                CYC = 186 / 38 

                CYC = 4.89

Where,

                CYC cycles of concentration

                Bch boiler water chlorides (ppm)

                FCh feedwater chlorides (ppm)

NOTE – If chlorides level are not known the same formula can be applied using the boiler’s and feedwater conductivity levels