Numerical Analysis of Plate Heat Exchanger Performance in Co-Current Fluid Flow Configuration
For many industrial applications plate heat
exchangers are demonstrating a large superiority over the
other types of heat exchangers. The efficiency of such a
device depends on numerous factors the effect of which needs
to be analysed and accurately evaluated.
In this paper we present a theoretical analysis of a cocurrent
plate heat exchanger and the results of its numerical
simulation.
Knowing the hot and the cold fluid streams inlet temperatures,
the respective heat capacities mCp
and the value of the
overall heat transfer coefficient, a 1-D mathematical model
based on the steady flow energy balance for a differential
length of the device is developed resulting in a set of N first
order differential equations with boundary conditions where N
is the number of channels.For specific heat exchanger
geometry and operational parameters, the problem is
numerically solved using the shooting method.
The simulation allows the prediction of the temperature
map in the heat exchanger and hence, the evaluation of its
performances. A parametric analysis is performed to evaluate
the influence of the R-parameter on the e-NTU values. For
practical purposes effectiveness-NTU graphs are elaborated
for specific heat exchanger geometry and different operating
conditions.
[1] J. A. W. Gut, J. M. Pinto, Modeling of plate heat exchangers with
generalized configurations, International journal of heat and mass
transfer,, 2003, pp. 2571-2585.
[2] R. K. Shah, W. W. Focke, Plate heat exchangers and their design
theory, Heat transfer Equipment Design, Hemisphere, New York, 1988,
pp. 227-254.
[3] T. Zaleski, K. Klepacka, Approximate method of solving equations for
plate heat exchangers, International journal of heat and mass transfer,
vol. 35, n┬░5 , pp. 1125-1130.
[4] J. Wolf, General solution of the equations of parallel flow multichannel
heat exchanger, International of heat and mass transfer, 1964, n┬░7, pp.
901-919.
[5] T. Zaleski, A general mathematical model of parallel flow multichannel
heat exchangers and analysis of its properties, Chem. Engng. Sci., 1984,
39, 1251.
[6] F. Incropera, D. DE Witt, Fundamentals of heat and mass transfer, John
Wiley & Sons, 3rd Ed, Singapore.
[7] W. M. Kays, A. L. London, 1964, Compact heat exchangers, MacGraw-
Hill, 2sd Ed New York.
[8] W. H. Press, B. P. Flannery, S. A. Teukolsky, W. T. Vetterling, 1992,
Numerical Recipes in Fortran 77, Cambridge University Press, 2sd Ed.
[1] J. A. W. Gut, J. M. Pinto, Modeling of plate heat exchangers with
generalized configurations, International journal of heat and mass
transfer,, 2003, pp. 2571-2585.
[2] R. K. Shah, W. W. Focke, Plate heat exchangers and their design
theory, Heat transfer Equipment Design, Hemisphere, New York, 1988,
pp. 227-254.
[3] T. Zaleski, K. Klepacka, Approximate method of solving equations for
plate heat exchangers, International journal of heat and mass transfer,
vol. 35, n┬░5 , pp. 1125-1130.
[4] J. Wolf, General solution of the equations of parallel flow multichannel
heat exchanger, International of heat and mass transfer, 1964, n┬░7, pp.
901-919.
[5] T. Zaleski, A general mathematical model of parallel flow multichannel
heat exchangers and analysis of its properties, Chem. Engng. Sci., 1984,
39, 1251.
[6] F. Incropera, D. DE Witt, Fundamentals of heat and mass transfer, John
Wiley & Sons, 3rd Ed, Singapore.
[7] W. M. Kays, A. L. London, 1964, Compact heat exchangers, MacGraw-
Hill, 2sd Ed New York.
[8] W. H. Press, B. P. Flannery, S. A. Teukolsky, W. T. Vetterling, 1992,
Numerical Recipes in Fortran 77, Cambridge University Press, 2sd Ed.
@article{"International Journal of Engineering, Mathematical and Physical Sciences:62000", author = "H. Dardour and S. Mazouz and A. Bellagi", title = "Numerical Analysis of Plate Heat Exchanger Performance in Co-Current Fluid Flow Configuration", abstract = "For many industrial applications plate heat
exchangers are demonstrating a large superiority over the
other types of heat exchangers. The efficiency of such a
device depends on numerous factors the effect of which needs
to be analysed and accurately evaluated.
In this paper we present a theoretical analysis of a cocurrent
plate heat exchanger and the results of its numerical
simulation.
Knowing the hot and the cold fluid streams inlet temperatures,
the respective heat capacities mCp
and the value of the
overall heat transfer coefficient, a 1-D mathematical model
based on the steady flow energy balance for a differential
length of the device is developed resulting in a set of N first
order differential equations with boundary conditions where N
is the number of channels.For specific heat exchanger
geometry and operational parameters, the problem is
numerically solved using the shooting method.
The simulation allows the prediction of the temperature
map in the heat exchanger and hence, the evaluation of its
performances. A parametric analysis is performed to evaluate
the influence of the R-parameter on the e-NTU values. For
practical purposes effectiveness-NTU graphs are elaborated
for specific heat exchanger geometry and different operating
conditions.", keywords = "Plate heat exchanger, thermal performance, NTU,
effectiveness.", volume = "3", number = "3", pages = "211-5", }