Thermosyphon Reboiler Animation
The figure 200 or 300 of recirculation ratio is equal to 05 or 033 or vapor fraction but it may not be applicable to thermosyphon reboilers.
Thermosyphon reboiler animation. The column has 39 stages a kettle reboiler 39 th stage total condenser first stage temperature measurement at 13 and 35 stages and feed at the 26 th stage. Thermosiphon is a physical effect and refers to a method of passive heat exchange based on natural convection which circulates a fluid without the necessity of a mechanical pump. The vertical thermosyphon reboiler is less susceptible to fouling problems and in general has higher heat transfer coefficients than does the kettle reboiler. I myself have rule of thumb value range of 5 to 30 but usually takes values typically 10 to 15 for my design purposes.
Reboilers kettle thermosyphon flashing distillation liquid and gas dispersion. However additional height is required in order to mount the reboiler. The design and layout of vertical thermosyphon reboilers is discussed in peghea205.