TITLE:
Delaware Method Improvement for the Shell and Tubes Heat Exchanger Design
AUTHORS:
Miguel Toledo-Velázquez, Pedro Quinto-Diez, Juan C. Alzelmetti-Zaragoza, Sergio R. Galvan, Juan Abugaber-Francis, Arturo Reyes-León
KEYWORDS:
Delaware Method; Flow; Correction Factor; Heat Exchanger
JOURNAL NAME:
Engineering,
Vol.6 No.4,
March
17,
2014
ABSTRACT: In this paper the Delaware Method published in
1963 is analyzed and upgraded with using correction factors which take into account the
undesirable currents of the mean flow. However, this method presents
graphically these correction factors which imply an impediment to fulfill the
software calculations. Thus, the equations corresponding to the correction
factor equations and a Fortran 77 numerical program were established. This
system is given to explore
different design alternatives in order to find the optimal solution to each
proposed problem. The results of this work was a simple software that can
perform calculations with the introduction of parameters depending only on the
geometry of the heat exchanger, i.e., geometry, temperature and fluid characteristics eliminating the human errors and
increasing the calculations speed and accuracy.