Wärmeatlas inside ANSYS

Integrate proven calculations based on the VDI Heat Atlas in your ANSYS simulation

Via the interface, parameters of the ANSYS simulation can be set with values of the LV program in both directions: Transfer from ANSYS to LV and from LV to ANSYS. The creation of such a link is very easy via drag and drop.


EWTS – Thermal and hydraulic design of electrically heated forced-flow shell-and-tube heat exchangers

With the electric heater module package,forced-flow shell-and-tube heat exchangers for liquid and gaseous media can be designed thermally and at any time. The maximum heating rod temperature is calculated and compared with the maximum film temperature for thermal oils. The maximum shell temperature is calculated for gaseous media. The radiation of the outermost heating rods on the shell and the cooling of the jacket by the gas are taken into account.

The theoretical basics of heat transfer refer to the VDI Heat Atlas 11th edition and HEDH (Heat Exchanger Design Handbook) as well as to special research reports.


Tube bundle vibration analysis program

Until now, the RBSA module has been used for simplified vibration analysis, but it only covers the “vortex excitation” part. The vibration excitation by fluid-elastic instability and turbulence excitation was not investigated. That is why LV has taken over the Good Vibrations program from Prof. Gelbe 2010 and has always adapted it to the current standard. It calculates the tube loads for the excitations:

  • Fluid-elastic instability: weighted maximum speed
  • Turbulence excitation: Weighted maximum amplitude
  • Vortex excitation: Weighted maximum amplitude for the most endangered tube row,

whereby the axial velocity distributions in the individual flow sections (inlet, outlet, window zone) are automatically calculated and weighted with the natural vibration modes of the pipes.

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