A Study on an Energy-saving Tray Ddv with New Structures
نویسندگان
چکیده
A general mathematical model based on the principal of non-equilibrium thermodynamics is proposed for analyzing the energy consumption of trayed column distillation processes related the tray structures, which can be used not only to calculate the energy consuming in different operational conditions, but also, and more importantly, to evaluate the entropy generation rate (EGR) of the different tray structures and different liquid flow patterns on trays of the column. Based on this analysis, an energy-saving tray with novel structures, called diamond-shaped dobble-deck valve tray (simply called DDV tray), was developed and experimentally determined on a pilot column with a diameter of 1000 mm. The results showed that DDV tray have the remarkable advantages in capacity, efficiency and energy-saving, over F1 tray, traditional sieve tray and rectangle-shaped valve tray, etc . . . .
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