To calculate the heat transfer rates, physical property data for fluids in treatment must be available. Physical property data should be more accurate as possible, the more accurate correlations of transfer of heat becomes available. However, most physical properties of mixtures must be calculated or estimated; Consequently, there is no need to attempt to determine the real film temperatures. Physical property Data-temperature fluid mass media are generally sufficient.
The following physical properties are usually needed in order to get the heat transfer calculated satisfactory rates:
- viscosity
- thermal conductivity
- density
- specific heat
- latent heat
- surface tension
When condensation or steam at a temperature between, a curve that represents the heat load temperature should also be available. In addition, you need to know the effects of the concentration.
