What is an appropriate flow rate for the oil transfer line at the outlet of the vacuum furnace?
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Taking 1.5% sulfur and 0.5% acid as an example, from the perspective of reducing erosion, what flow rate is appropriate for the oil transfer line at the outlet of the vacuum furnace?
Values below 30 m/s are acceptable, but there will be a large difference between the calculated value and the actual value; two-phase flow makes it difficult to make accurate calculations!
Some companies now use high-speed oil transfer lines, with a flow rate controlled at 80% of the speed of sound.
A couple of days ago, I saw a post in the software section discussing the simulation of atmospheric and vacuum distillation systems, so I asked a similar question regarding how the transfer lines are handled in such simulations. I didn’t receive any answer, as my experience level isn’t high enough and I couldn’t view the attachments; therefore, I don’t know exactly how it is handled. If you have sufficient qualifications, you might as well take a look, because the correct simulation must include this parameter.
Thank you for providing such information: handshake.
It is mainly a two-phase flow problem; the velocity of the gas phase is difficult to determine. The vaporization rate and flow velocity can only be estimated based on the detailed flow distribution within the furnace, as well as the temperature and pressure at the outlet of the furnace.