WPIPER is a computerized engineered maintenance management system which assists managers in making cost-effective maintenance decisions for underground water distribution systems. The system consists of a pipe network inventory, a hydraulic model, a Hazen-Williams C-factor prediction model, an economic analysis routine, and reports. The C-factor prediction model predicts the reduction in the Hazen-Williams C-factor due to internal corrosion in unlined metallic pipes. The prediction model can be used in conjunction with the hydraulic model to forecast when fire flow requirements will no longer be met in a section of the system. Budget projections can then be made and limited funds can be optimally allocated. WPIPER is also a valuable tool for water distribution system design and scenario-building, and can be used to design the most cost-effective system which will still meet performance requirements.

Subject
Appurtenances, Costs, Water, Piping, Tools, Corrosion modeling, Repair, Pressure, Hydraulic equipment, Pipe sections, Engineering, Operations management, Maintenance
Keywords:
water distribution systems, maintenance management, Hazen-Williams C-factor, hydraulic analysis
© 1991 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).
1991
Association for Materials Protection and Performance (AMPP)
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