Forced-circulation reboiler
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For ASPEN distillation column simulation with a forced-circulation reboiler, how should the simulation settings be configured? The reboiler uses a forced thermosyphon type with pump circulation, or a horizontal shell-and-tube type with forced circulation. I want to know what the heat load of the reboiler is, as well as the forced circulation rate – for the selection of the bottom pump and the design of the pipe diameter. - This article is from **Chemical Engineering Forum; the original address is: https://bbs.mahoupao.com/thread-224820-1-1.html
In the case of forced circulation, since the external driving force is provided by a pump, the specific circulation rate parameters chosen are essentially those that you determine based on your requirements, such as the flow velocity within the pipes and the amount of evaporation. Generally, approximate ranges for these values can be found in design manuals. Pay special attention to the simulation of such heat exchangers; it is best to combine this with the design of the heat exchanger and make repeated adjustments.
In the case of forced circulation, since the external driving force is provided by a pump, the specific circulation rate parameters chosen are essentially those that you determine based on your requirements, such as the flow velocity within the pipes and the amount of evaporation. Generally, approximate ranges for these values can be found in design manuals. Pay special attention to the simulation of such heat exchangers; it is best to combine this with the design of the heat exchanger and make repeated adjustments.
Generally, a vaporization rate of 3% to 5% can be used to calculate the circulation volume