TTC Technologies

Shell & Tube Heat Exchanger

Shell & tube heat exchanger
(Click image to enlarge)


  • Calculation of the heat transfer rate
  • Calculation of the outlet temperatures
  • The program optimizes with respect to a number of parameters including shell diameter, number of shell passes, tube length, and number of tube passes. Criteria considered include minimum heat transfer area, minimum pressure drop, and minimum power or a combination of these factors.
  • Kern's integral method
  • Bell-Delaware method
  • Stream analysis method
  • Multiple tube passes, multiple shell passes, multiple shells in series, shells in parallel.
  • Single-phase analysis
  • Two-phase analysis
    • Boiling in tube
    • Boiling in shell
    • Condensation in tube
    • Condensation in shell
    • Multi-component analysis
    • Non-condensable
Tube Types
  • Plain tubes, Integral low, Finned tubes
Tube Layout
  • Triangle, rotated triangle, square, rotated square
Baffle Types
  • Segmented, no tubes in window, strip baffles
Baffle Options
  • Even baffle spacing, Uneven baffle spacing
  • Method for shell analysis
  • Tube configuration
  • Number of tubes
  • Number of tube passes
  • Number of shell passes
  • Tube length
  • Tube bundle diameter
  • Sealing strip pairs
  • Shell pass partition
  • Baffle spacing, baffle cut, baffle-shell leakage, baffle-tube leakage
For each fluid:
  • Density, specific heat, viscosity, thermal conductivity (or selection of a fluid from the Database)
  • Tube/shell mass or volume flow rate
  • Tube/shell diameter
  • Absolute roughness of tube inner and outer walls
  • Thermal conductivity of tubes
  • Fouling resistance in inner and outer tube walls
  • Heat transfer rate
  • Heat transfer area
  • U and UA
  • Effectiveness
  • LMTD
  • NTU
For each fluid:
  • Velocity
  • Reynolds number
  • Heat transfer coefficient
  • Nusselt number
  • Friction factor
  • Pressure loss
  • Power
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