Shell-and-tube condensers for pure vapours

The theoretical principles of heat transfer are based on the VDI Heat Atlas and the HEDH (Heat Exchanger Design Handbook) as well as special research reports.

Program features

The KOND program is based on the WTS program and thus has all the features and modules of this program.

Shell-and-tube condensers with enthalpy, condensation and subcooling zones can be calculated. The subcooling of the condensate is not calculated for shell-side condensation at horizontal tubes. The condensation can either take place around the tubes or in the tubes but it is restricted to pure vapours (no mixtures)

Shell-and-tube condensers for pure vapours

KOND can only calculate condensers with one tube side pass.

Special features

  • Thermal and hydraulic calculation of tube bundle heat exchangers and condensing pure substances. The cooling medium during condensation is single-phase (no evaporation).
  • Heat exchangers without tubes in the window zones (NTIW)
  • Detailed tube sheet generation.
  • Optimization of a new exchanger on the basis of given standard dimensions
  • Determination of operation by multidimensional parameter studies in graphical or tabular form
  • Output of specification sheets in MS-Excel allows free design in familiar environment
  • Heat transfer correction for unequal baffle spacing at inlet and outlet
  • Design using customer’s own standard tube sheet configuration


Module package WTS and add-on KOND.

The module SPIE in the program KOND enables:

  • Generation of tube sheet and baffle configurations incl. longitudinal baffle
  • Creation of a user-specific tube sheet configurations library
  • CAD interfaces

Additional charge to module package WTS

(latest version of WTS required)

  Module Standard
Construction types
Shell and tube condenser with desuperheating, condensation and subcooling KOND X  
Countercurrent    X  
Plain tubes inside/outside   X  
with segmental baffles   X  
Straight tube   X  
No tubes in window   X  
TEMA Standard TEMA X  
Steady-state temperature distribution ZELL X   
Tube bundle vibration analysis RBSA X  
Shell without baffles GGO   X
Corrugated tubes DRLL   X
Physical properties
Water and steam H2O X  
Seawater Sawa X  
Saturated steam Condensation H2O X  
Natural gas H, L and any composition EGAS X  
Flue gas RGAS X  
Ammonia and ammonia   condensation NH3 X  
12 typical machine oils OEL X  
120 Thermal oils T-OIL X  
Air (dry) LUFT X  
® Antifrogens N, L, KF and SOL GLYC X  
Free input of properties S-DAT X  
Refrigerants FRIG X  
Heavy fuel oils HFO   X
Sulphuric acid H2SO  
Nitric acid HNO3  
Hydrochloric acid HCL   
Sodium hydroxide NAOH   
Nitrogen N2    X
Oxygen O2   X
Carbon dioxide / CO2 condensation CO2   X
Helium He   X
N2 O2 H2 CO CO2 H2O SO2 SO3 – Mixtures of any composition Gasmix   X
Aqueous sucrose solutions SAC   X
Properties of pure substances and mixtures
(requires program PROPER)
User-supplied properties tables S-TAB   X
Interface to strength calculation, true to scale heat echanger drawing W-CAD X  
Tube sheet library /
Creating a design-specific tube sheet.
Tube sheet that can be edited as DXF file
Customer documentation KUDO X  
EXCEL specification sheet   X  
English Documentation     X

® Registered trademark of Clariant GmbH

see also:

Dieser Beitrag ist auch verfügbar auf: Deutsch (German)