Chemistry: analytical and immunological testing – Automated chemical analysis – Condition or time responsive
Patent
1993-04-20
1994-06-14
Yuen, Henry C.
Chemistry: analytical and immunological testing
Automated chemical analysis
Condition or time responsive
122504, 436 55, 436172, 2524081, 252964, 165 70, G01N 3502, F22B 3742
Patent
active
053209672
ABSTRACT:
Leakage of water from a boiler water system wherein steam is generated in a boiler from feedwater fed to the boiler, and the concentration of impurities in the boiler water within the boiler is reduced by withdrawing fractions thereof as blowdown while admitting additional feedwater as boiler-water makeup, is determined. The boiler has a concentration cycle value, the concentration cycle value being the average value of the concentration of an inert component in the blowdown at steady state (C.sub.F) divided by the concentration of the inert component in the feedwater (C.sub.I). The concentration of the inert component in the boiler at steady state varies from a high concentration C.sub.H, having a value that is higher than C.sub.F, to a low concentration C.sub.L, having a value between the (C.sub.I) and the (C.sub.F), within a time period. The method comprises:
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Avallone Stanley C.
Fowee Roger W.
Furibondo Nicholas J.
MacDonald James R.
Barrett Joseph B.
Miller Robert A.
Nalco Chemical Company
Norek Joan I.
Yuen Henry C.
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