A standard method for evaluating the economics of proposed changes to a cooling tower water treatment program is presented. Mathematical comparisons of competing alternatives are calculated. This means that two or more mutually exclusive approaches, such as the total cost of two competitive chemical programs or a chemical program and stand-alone ozone treatment are compared. In addition, models are presented to evaluate the economics of employing auxiliary equipment such as pH controllers, filtration equipment, and softeners. The economic evaluation utilizes standard engineering calculations as recommended by the National Society of Professional Engineers.

Subject
Electric current, Costs, Water, Materials, Objectives, Corrosion rate, Rectifiers, Cycles of concentration, Engineering, Equipment, Electric potential, Sewage systems, Cooling towers
Keywords:
cooling tower, economic analysis, comparison, cost, net present value, equivalent uniform annual cost, equivalent uniform savings
© 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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