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Evaporation for desalination : Improved multistage flash(MSF) processes

✍ Scribed by Donald F. Othmer

Publisher
Elsevier Science
Year
1969
Tongue
English
Weight
998 KB
Volume
6
Category
Article
ISSN
0011-9164

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✦ Synopsis

IMPROVED hWi.TISTAGE FI.ASH(MSI') I'ROCWFS Multistage flash (MSF) evaporation may produce ten pounds of water per pound of swam -the so-called "gain ratio". Se\craI MSF units in a multi-ct%ct series g&c t\sicc this gnin ratio, at I.tr_ge increase in pfnnt cost. Variations in MSF described increase the gain ratio substantially \xithout increase -or \ith an actual decrease -of plant cost. First_ the prime or brine heater. if used also as an evaporator to suppIy \ilpors to a h~~lf-st~~ge ztbove the NO-1 stag on the condensing-cooling side. may save 4 to 25"; of the heat required depending on the number of stages. Over 6 million gallons of x\ater per day without additionid heat cost thus may be obtained in one lar_ge plant, now bcin g engineered, and lvithout increasing plant cost per unit of product.

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