Design parameters of shell-and-tube heat exchangers

Medium, inlet temperature, outlet temperature, flow rate

In addition to what was mentioned above, there should also be an operating pressure.

This post was last edited by wiseboy on 2018-9-8 at 17:44. Complete answer: 1. Flow rate 2. Temperature 3. Pressure 4. Specific heat, density, viscosity, thermal conductivity, latent heat of vaporization (required when there is a phase change), surface tension of the liquid (required for evaporation). If these red-marked values cannot be provided, the material composition must be given; process and thermal design engineers will use this composition to calculate them. In the case of a phase change, specific heat, density, viscosity, and thermal conductivity values for both the liquid and the vapor are required. 5. Depending on the algorithm, other physical properties may also be required; for example, some evaporation algorithms need molecular weight, critical temperature, critical pressure, critical compressibility factor, etc., and these values can also be calculated from the composition. Tip: Calculating material properties using composition is not something that amateurs can handle, but true process and thermal engineers must possess this ability. The more scientific the calculation, the more complex the data required. Objectively speaking, manual calculation should have been abandoned long ago, because you can’t carry out rigorous scientific calculations that way.

This post was last edited by foam_ZPTK on 2018-9-18 17:05: working medium, primary/secondary side temperatures, flow rate