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How to Use Vertical Thermosyphon Reboiler Calculator

Follow these steps to start the calculation

Main Panel

Main Panel consists of following sub-panels

Mode PanelGeometry PanelProperties PanelData Panel

Mode Panel

Select Mode for Calculation

Find Circulation Rate - Provide intial estimate for Circulation rate, if no input is provided,calculator will start with its own intial estimate.Rating for Given Circulation Rate - Provide a circulation rate for which calculator will checkwhehter thermosyphoning will take place or not.Select the Units from SI, Metric and English.

Geomtery Panel

Enter the Geometric details for the exchanger

Do - Tube Outer DiameterDi - Tube Inner DiameterNT - Total number of tubesL - Length of tubeEPST - Roughness of tubeH - Height of Liquid level in column above bottom tubesheet of reboilerDin - Diameter of Inlet leg piping to the ReboilerDout - Diameter of Return leg piping from the ReboilerLin - Equivalent Length of Inlet Leg piping to the ReboilerLout - Equivalent Length of Return Leg piping from the ReboilerEPS - Roughness of Inlet and Return Leg Piping

Properties Panel

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In this section physical properties for the process fluid are filled. Physical properties are filled for 2reference temperatures covering the operating temperature range of the reboiler. If properties areavailabe for 1 temperature only then calculator will take same property otherwise it will interpolate fromproperties for 2 reference temperatures. Following properties are to be filled for the process fluid.

Reference TemperatureLiquid DensityVapor DensityLiquid ViscosityVapor ViscosityLiquid Specific HeatLiquid Thermal ConductivityLiquid Surface TensionLiquid Heat of VaporizationReference Temperature for Heat of Vaporization

Data Panel

In this section remaining data required for the calculation of thermosyphon reboiler are filled asfollowing.

Antoine Equation parameters for the calculation of vapor pressure log(Pvap) = A - B/(T+C) areprovided.Utility Data is filled for Saturated Steam. User can provide Steam Pressure and then press Enterto calculate the Saturation Temperature. Or directly Steam temperature can be filled. Heattransfer coefficient is then filled for Shell side steam.Liquid inlet temperature to the reboilerLiquid critical temperatureTube wall Thermal ConductivityFouling factor for Shell SideFouling factor for Tube Sdie

Sample problems can be loaded by clicking Load Sample Button. After filling all necessary data PressCalculate Button to start calculation.

Result Panel

After calculation is complete results are printed in this panel. To Copy results follow these steps -

Press CTRL + A to Select all text matter in the text window.Press CTRL + C to Copy the selected text matter.Open any Text or Spreadsheet editor and press CTRL + V to Paste the selected Text.

Start | Applications | Sample 1 | Sample 2

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