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Time‐dependent exhaust steam temperature profile to mitigate fouling
Author(s) -
Srivastava Divya
Publication year - 2014
Publication title -
asia‐pacific journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.348
H-Index - 35
eISSN - 1932-2143
pISSN - 1932-2135
DOI - 10.1002/apj.1863
Subject(s) - fouling , evaporator , exhaust gas , work (physics) , constant (computer programming) , yield (engineering) , pulp and paper industry , boiler (water heating) , process engineering , chemistry , environmental science , waste management , environmental engineering , materials science , engineering , mechanical engineering , computer science , composite material , heat exchanger , biochemistry , membrane , programming language
In sugar industries, a decrease in the exit liquor concentration is observed because of fouling in multiple‐effect evaporator (MEE) systems, which finally decreases the yield of the MEE system. In the present work, a time‐dependent exhaust steam temperature profile has been developed to compensate the ill effect of fouling. In the suggested temperature profile, the temperature of exhaust steam has been raised daily throughout the cycle of operation to achieve a constant exit liquor concentration. Further, the main drawback with this strategy is the increase in fouling resistance. For this purpose, an increase in foulant thickness has been determined, and it is found that only 0.4‐mm foulant thickness has been increased with the suggested strategy, and it will not cost any extra effort in cleaning, and with this strategy, constant exit liquor concentration can be achieved. Copyright © 2014 Curtin University of Technology and John Wiley & Sons, Ltd.

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