Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
MODELING AND COMPARATIVE STUDY OF A COMPACT HEAT EXCHANGER WITH EXTENDED SURFACES
Submission Author:
Paulo Vitor Ribeiro Plácido , Buscando endereço... , Brazil
Co-Authors:
Paulo Vitor Ribeiro Plácido, Antonio Bruno de Vasconcelos Leitão
Presenter: Paulo Vitor Ribeiro Plácido
doi://10.26678/ABCM.COBEM2019.COB2019-0311
Abstract
The optimization of industrial processes for maximum utilization of available energy has been a line of scientific research quite widespread recently. Many industrial applications require the use of heat exchangers with piped fittings, whether or not finned, operating in air conditioning, refrigeration, heating, radiators and in various other engineering applications. In this work, the theoretical formulations are related to the effects of modes of heat transfer in a compact heat exchanger. Through these formulations, it was possible analyze what material (Cu, Al) would be more thermally efficient and relate the theories of heat exchangers to those of extended surfaces and to analyze the contributions of these effects on the heat transfer rates and the efficiency of these surfaces. Thus, a computational code was developed in the Engineering Equation Solver (EES) platform to size, model the compact heat exchanger. On the basis of the data submitted, it was found that the Cu fin is more efficient thermally about Al this may be explained because the higher thermal conductivity of copper. As comparisons between the settings of the heat exchanger with copper pipes in the presence and absence of fins it was observed that there is a reduction in the area of heat exchange without fins, however with the attachment of the extended surface occurs an increase in global heat transfer area.
Keywords
energy, Compact Heat Exchanger, Extended surface
