EVALUATION OF OVERALL HEAT TRANSFER COEFFICIENTS HEAT TRANSFER AREAS IN MULTIPLE EFFECT EVAPORATORS BASED ON HEAT TRANSFER CORRELATION STUDIES

摘要

Estimation of specific heat transfer coefficients based on Dessin formula is a well known practice in the sugar Industry. Boiling point elevation with respect to juice boiling temperature/Brixes & prevailing hydrostatic head guides in calculating the heat transfer areas in case of Multiple effect evaporators. Further recent correlation studies on heat transfer coefficient as suggested by various experts are taken in to account while comparing the overall heat transfer coefficients calculated by Dessin formula. Further heat transfer areas are calculated for all the cases. Possible reasons for deviations are analyzed.