Once-through cooling systems, especially cooling lakes, generally operate at low calcium carbonate supersaturation and are easy to chemically treat for scale/deposit control. However, due to the large volume of water that must be cost effectively treated, chemical treatment optimization becomes extremely important.

This paper discusses a laboratory procedure for optimization, a computer program for predicting optimum dose, and field verification using a test loop heat exchanger at a power plant. Due to short residence time and low supersaturation of the water, a constant composition technique was used in the laboratory for optimizing chemical treatment and the results were found, generally, in good agreement with the field study.

Subject
Acids, Water, Precipitation (solids), Composition, Optimization, Calcium carbonate, Tubes, Scale inhibitors, Acidity, Constants, Corrosion inhibitors, Equipment, Chemical treatment
© 1994 Association for Materials Protection and Performance (AMPP). 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 the prior written permission of AMPP. 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).
1994
Association for Materials Protection and Performance (AMPP)
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