How Does Velocity Descent Impact Spray Drying Processes?

[davidgruty]

Hello everybody, I'm new here.

I'm working with spray driers and I need to know how does the velocity descent affect to the process.

Can you help me?

I need to know how the variables affect and the consequences.

Thank you very much

 

[Astronuc]

One needs to elaborate more on the process. For example, what fluid is being sprayed, and on to what is it sprayed.

In general, as the velocity of a fluid (e.g. water, air, gas, . . .) involved in forced convection increases, the heat transfer coefficient improves. Often the heat transfer coefficient is correlated with the Reynolds and Prandtl numbers, or the Nusselt number.

If it's a drying process, then humidity of a gas would be important.

If it involves a vortex separator, then the centrifugal force increases with velocity, and that would improve separation of liquid drops from a gas.

It's difficult to offer any information without more specifics, e.g. temperature, pressure, mass flow rate, phases, . . . .