Chemstations Inc., Houston, TX, USA. See also: http://www.chemstations.com

CC-THERM

Shell & Tube heat exchanger design and rating program, sharing the flowsheet, physical properties, and thermodynamics with CHEMCAD. Close integration of the modules ensures consistent results.

• General technical features

  • Design and rating modes
  • Calculates all TEMA types
  • Tubeside process types
    • Sensible flow (vapor or liquid)
    • Falling film - liquid
    • Forced evaporation
    • Falling film evaporation
    • Vertical thermosyphon
    • Horizontal condensation
    • Vertical co-current condensation
    • Vertical countercurrent condensation
  • Shellside process types
    • Sensible flow (vapor or liquid)
    • Forced evaporation
    • Pool evaporation
    • Horizontal thermosyphon
    • Horizontal condensation
    • Vertical condensation
  • Exchangers may have evaporation on one side with condensation on the other with any combination of subcooling or superheating
  • A full stream stream analysis is performed on the shellside
  • A ten zone analysis is performed
  • The conditions and properties are automatically generated on all ten zones and can be modified by the user
  • Heat duties are automatically balanced
  • A complete library of materials is incorporated for tubes, pipes, shells, bonnet and tubesheets
  • TEMA, ASME, DIN, or BS 5500 codes may be used
  • Dry wall or wet wall condensing can be calculated

• Baffles

  • Baffles may be single segmental, double segmental, triple segmental, full circle, no-tubes-in-window or rod baffles
  • User may specify or have the program optimize the baffle spacing, cut and direction
  • Impingement plates are accommodated

• Tubeside

  • Tubes may be bare or fin
  • Turbulators may be used on the inside of the tube
  • User may specify tube outside diameter, gauge, pattern and pitch.
  • Tubesheet thickness calculated to determine effective area
  • U-bend radius and/or efficiency may be specified
  • Tube length or maximum tube length may be specified

• Shellside

  • Shells in series or parallel
  • Shell as plate or pipe
  • Sealing strips permitted
  • Diameter or maximum diameter can be specified
  • Users can select one of the available clearance standards or may input their own
  • Space at top and/or bottom can be specified

• Miscellaneous

  • Safety factors may be specified
  • Entrainment ratios
  • Kettle diameter
  • Shellside or tubeside heat transfer coefficient can be fixed
  • Tube axial stress