The essential shell-and-tube type heat exchanger construction is used in both fossil-fired and nuclear-fueled electric power plants in several large-sized design variants. Typical functions include feedwater heaters (FWH) operating on turbine extraction steam on the shell side to preheat both low and high pressure feedwater within the tubes, moisture separator reheaters (MSR) using primary or extraction steam within the tubes to reheat and dry turbine steam between stages, nuclear steam generators containing pressurized water within the tubes to boil water and produce steam on the shell side, and condensers. High pressure (FWH’s) are used in fossil units, MSR’s are used in both boiling water and pressurized water nuclear power units, and low- and intermediate-pressure FWH’s and condensers are standard in all plants. Construction typically utilizes horizontal U-tube configurations in FWH’s, horizontal straight through configuration in MSR’s and condensers, and vertical U-tube in nuclear steam generators with recirculation. (Once-through vertical nuclear steam generators are not discussed in this paper.)

Subject
Water, Materials, Intergranular stress corrosion cracking, Ions, Metal surfaces, Tubes, Corrosion detection, Intergranular cracking, Monel alloys, Elements, Steam, Cracks, Stress corrosion cracking
© 1976 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).
1976
Association for Materials Protection and Performance (AMPP)
You do not currently have access to this content.