WebNov 1, 2007 · The graphs can be used to infer pH only if the alkalizing agent (ammonia or sodium hydroxide) is the sole source of conductivity. If ionic contamination is present, the … WebBoiler feedwater systems using demineralized or evaporated makeup or pure condensate may be protected from caustic attack through coordinated phosphate/pH control. …
Phosphate corrosion in high-pressure boilers - OSTI.GOV
WebHEP = 1(2-Hydroxyethyl) piperazine *This value represents an average from three tests. As the results presented in Table I illustrate, phosphate proves to be an effective treatment at Na:PO 4 ratios which would be in, or near, the control boundaries of a coordinated phosphate/pH program. However, as the phosphate Na:PO 4 ratio was increased, the … http://www.iffcokandla.in/data/polopoly_fs/1.2466744.1439386389!/fileserver/file/523517/filename/006a.pdf how does a smart meter work with solar panels
Selecting a Combined Cycle Water Chemistry Program
WebTo minimize the iron deposition in high-pressure (1000-1750 psig) boilers, specific polymers have been designed to disperse the iron and keep it in the bulk water. As with … WebThe solids content of very dilute solutions such as condensate may be calculated with a factor of 0.5-0.6 ppm of dissolved solids per microsiemens (micromho) of specific conductance. For a more concentrated solution such as boiler water, the factor can vary between 0.55 and 0.90 ppm of dissolved solids per microsiemens of specific conductance. Websystem parameters, viz., phosphate concentrations, sodium-to-phosphate ratios, and pH lie outside the con trol boundaries of a control chart similar to FIG. 1. While the coordinated phosphate/pH corrosion con trol treatment is widely used, it is not without its draw backs or limitations. Often, it is desirable to supplement phosphate waste