Condensation

General Description

Condensation is the process of converting a gas or vapor to liquid by decreasing its temperature and/or increasing its pressure. This operation simulates a shell–and–tube surface condenser with condensation taking place in the shell side while a cooling agent is running in the tube side.

Unit Procedure Availability

      Condensation Procedure

Condensation: Modeling Calculations

Material and Energy Balances

The model consists of the same set of equations eq. (A.257)- eq. (A.261) as the Flash operation (see Flash Evaporation: Modeling Calculations).

Equipment Sizing

The sizing variable of the evaporator is the heat transfer area, A. In Design mode, the heat transfer area is calculated by:

HeatExchangerDesign1.jpg 

eq. (A.263)

where U is the constant overall heat transfer coefficient, Q is the cooling duty and ΔT is the mean logarithmic temperature difference between feed and the cooling agent.

References

1.      Kern D.Q (1965). Process Heat Transfer, McGraw-Hill.

2.      Henley E. J. and J. D. Seader (1981). Equilibrium-Stage Separation Operations in Chemical Engineering, John Wiley & Sons.

3.      Theodore L., Buonicore A.J. (1988). Air Pollution Control Equipment, 2 (Gases), CRC Press.

Condensation: Interface

The interface of this operation has the following tabs:

      Oper. Cond’s, see Condensation: Oper. Conds Tab

       Toolbox, see Flash Evaporation: Toolbox Options Tab

      Numerics, see Flash Evaporation: Numerics Tab

      Labor, etc, see Operations Dialog: Labor etc. Tab

      Description, see Operations Dialog: Description Tab

      Batch Sheet, see Operations Dialog: Batch Sheet Tab

      Scheduling, see Operations Dialog: Scheduling Tab