Experimental Investigation of the Flow Distribution Inside a Tubular Heat Exchanger

Author:

Faure Thierry M.1,Lusseyran François1,Gougat Pierre1,Launay François2

Affiliation:

1. Laboratoire d’Informatique pour la Mécanique et les Sciences de l’Ingénieur, Unité Propre de Recherche 3251, Centre National de la Recherche Scientifique, Université Pierre et Marie Curie, Paris 6, B.P. 133, 91403 Orsay Cedex, France

2. Institut de Physique Nucléaire d’Orsay, Unité Mixte de Recherche 8608, Centre National de la Recherche Scientifique, 15 rue Georges Clémenceau, 91406 Orsay Cedex, France

Abstract

The velocity field inside a new concept of heat exchanger, which is a component of a high protons linear accelerator, is investigated experimentally in order to validate the design. A full scale facility with optical accesses is used for the measurements by particle image velocimetry. The choice of the technique is set by the three-dimensional and strongly unsteady structure of the flow. A filtering procedure is applied to the recorded images before processing the velocity field with an optical flow algorithm using dynamical programming. The distribution of the velocity between the different tubes of the heat exchanger shows a large scatter of flow rate between these tubes. In addition, the turbulence characteristics are presented.

Publisher

ASME International

Subject

Mechanical Engineering

Reference21 articles.

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