EVAPORATOR WITH COATED AND CORRUGATED TUBES
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United States of America Patent
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Issued Date -
Apr 18, 2013
app pub date -
Jun 20, 2011
filing date -
Jun 22, 2010
priority date (Note) -
Abandoned
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Abstract
An evaporator having more efficient heat transfer tubes, that are either or both coated and vertically corrugated. The coating, though reducing the heat transfer co-efficient, lengthens the time between cleaning treatment to increase the overall efficiency of the evaporator. The corrugation of the tubes controls the film characteristics and enhances evaporation from the film upon condensation of vapor within the tubes. The corrugation profile is selected to enhance waviness and turbulence of the films and thereby increase evaporation and condensation and hence the effectivity of the evaporator.
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