Author(s)

J. M. Corberan, P. Fernandez de Cordoba, S. Ortuno V. Ferri J. Gonzalvez, T. Setaro, G. Boccardi

Abstract

In this paper a model for compact evaporators and condensers is presented. The flow along a channel of a compact HE is considered to be 2-D and split into separated 1-D paths. Then, every 1-D flow path is discretised in as many elements as required. First, both fluid flow evolution along the heat exchanger are calculated through the integration of the 1-D conservation equations for single or two phase flow, assuming that wall temperatures are known. This calculation is performed through an explicit finite volume scheme, following the flow path. Once the temperature field for both fluids is calculated, then, the wall temperatures are obtained from the integration of the wall energy equation

Keywords