Dynamic Simulation of Plate and Frame Heat Exchanger Undergoes Rapid Fouling
Systematic methods and tools for managing the complexity
Process Operation, Monitoring & Analysis (T4-2P)
Keywords: Dynamic Simulation, Plate Heat Exchanger, Rapid Fouling
Dynamic Simulation of Plate and Frame Heat Exchanger
Undergoes Rapid Fouling
Panya Triratana, Phavanee Narataruksa*, and Karn Pana-Suppamassadu
Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s Institute of Technology North Bangkok, Bangkok 10800, Thailand
*Corresponding author: Tel. 662-913-2500 ext 8236, 8237, Fax 662-587-0024
E-mail: phn@kmitnb.ac.th
ABSTRACT
Mathematical model and dynamic simulation technique of plate heat exchangers (PHEs) with rapid fouling effects were presented. The thermal dynamic model is a set of partial difference equations (PDEs) corresponding to material and energy balances with self-motivated fouling models. Finite difference method (FDM) by Runge Kutta 4th order was used to obtain dynamic temperature profiles within a plate pack, where fouling deposit was upholding. Simulation results were compared with the experimental results in a case of coconut milk pasteurization section. The evolution of the coconut milk outlet temperature and the overall heat transfer coefficient with time from the simulation agreed well with those obtained from the experiments. The calculation routine can be used to provide a result of step change of selected input variable(s), i.e. fluid flowrate and temperature. The feature allows control strategy to be specified in order to bring back a set point temperature of a process stream. For the coconut milk case, the change in input temperature and/or flowrate of hot utility fluid can be specified ahead of time by applying the routine to control the coconut milk output temperature.
Keywords: Dynamic Simulation, Plate Heat Exchanger, Rapid Fouling
See the full pdf manuscript of the abstract.
Presented Wednesday 19, 13:30 to 15:00, in session Process Operation, Monitoring & Analysis (T4-2P).
