An annular test section with an electrically heated concentric core has been used extensively to determine the fouling characteristics of various fluids used for industrial cooling purposes. The thermal hydraulic conditions existing at selected locations in operating heat exchangers can be simulated in the test section.

This paper describes an investigation of the heat transfer coefficients for water flowing in the test sections. These coefficients were found to agree within an average of +12% of the coefficients predicted by the Monrad and Pelton equation. This indicates that the thermal hydraulic conditions existing at the location of the temperature sensors in the test section correspond very closely to fully developed annular flow.

Actual case histories related to plant cooling water systems are also provided.

Subject
Water, Sensors, Heaters, Tubes, Suspended solids, Walls, Constants, Experimental data, Fluids, Heat, Fouling, Cleaning, Surface temperature
© 1985 Drew. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without prior written permission. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1985
Drew
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