Design of film-evaporator
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Feed composition: VB12H2ONH3NaCN; mass fractions of components: 0.001, 0.9725, 0.025, 0.0015. Composition of the resulting liquid: VB12H2ONH3NaCN; mass fractions of components: 0.0034, 28.6%, 60.9914%, 300.00514%. Feed flow rate: 1333.4 kg/h; output flow rate: 389 kg/h; evaporation rate: 944.4 kg/h. Boiling point of the feed solution: 65°C; pressure of the heating steam: 0.3 MPa(G); pressure of the secondary steam: -0.08 MPa(G). The material used for the equipment is 304, with a thickness of 10 mm. The above are the process parameters. My heat transfer coefficient is only 898.290837 W/(m2·°C); it seems incorrect, as the heat transfer coefficient for such materials should be around 2000. I wonder if anyone experienced can perform a simulation. Deeply grateful:handshake
I also need to use a film-evaporation evaporator. Does anyone have an example or can explain how to use it?
Actually, this is related to the composition of the materials as well as the degree of recycling; here I use K value of 300 kcal/m2*degree