I. THE NEED. A. In high pressure feedwater heaters, a tube leak quickly claims several neighboring tubes as collateral victims. B. Prompt detection of the initial leak would save the neighboring tubes from damage and preclude a potential turbine water induction incident. II. EXAMPLE. A. A Midwest generating station replaced 12 old high pressure heaters. The new heaters contained 304N SS tubes. In one of the new heaters, an unknown localized contaminant caused a single tube leak within the first year. This single leak went undetected until several surrounding tubes were lost due to impingement from the initial leak. And even the conservatively sized normal and emergency drains were overwhelmed, causing the heater to trip on high level. III. CAPABILITY OF SMART LEVEL CONTROLS. A. There are three known possibilities that would cause high drain-flow conditions in a feedwater heater. 1. High Unit Load. 2. The upstream feedwater heater is out of service. 3. A tube leak. B. Traditional Local level controls can sense high flow conditions, but cannot tell why. Most systems will alarm the opening of the emergency drain valve, but by that time, the collateral tube damage is usually severe. “Smart” Level Controls have the capability to distinguish between these conditions, thus allowing it to give early notification of a tube leak, before collateral damage becomes severe.
Skip Nav Destination
Close
Sign In or Register for Account
2002 International Joint Power Generation Conference
June 24–26, 2002
Scottsdale, Arizona, USA
Conference Sponsors:
- Power Division
ISBN:
0-7918-3617-7
PROCEEDINGS PAPER
Prompt Leak Detection for High Pressure Feedwater Heaters
Steven A. Kidwell
Steven A. Kidwell
Raymond Professional Group, Inc., Chicago, IL
Search for other works by this author on:
Steven A. Kidwell
Raymond Professional Group, Inc., Chicago, IL
Paper No:
IJPGC2002-26140, pp. 163-166; 4 pages
Published Online:
February 24, 2009
Citation
Kidwell, SA. "Prompt Leak Detection for High Pressure Feedwater Heaters." Proceedings of the 2002 International Joint Power Generation Conference. 2002 International Joint Power Generation Conference. Scottsdale, Arizona, USA. June 24–26, 2002. pp. 163-166. ASME. https://doi.org/10.1115/IJPGC2002-26140
Download citation file:
- Ris (Zotero)
- Reference Manager
- EasyBib
- Bookends
- Mendeley
- Papers
- EndNote
- RefWorks
- BibTex
- ProCite
- Medlars
Close
Sign In
7
Views
0
Citations
Related Proceedings Papers
Related Articles
Methodology for Calculating Minor Radioactive Releases From VVER 1000 Using TRACE Code
ASME J of Nuclear Rad Sci (April,2021)
Analysis of Single-Phase Cascade Flow in Power Plant Drain Systems
J. Eng. Gas Turbines Power (July,1985)
Analyses of Feedwater Trip With SBO Sequence of VVER1000 Reactor
ASME J of Nuclear Rad Sci (October,2016)
Related Chapters
Discussion of Parameters to Be Monitored
Consensus on Operating Practices for the Sampling and Monitoring of Feedwater and Boiler Water Chemistry in Modern Industrial Boilers (CRTD-81)
Recovery from a Catastrophic Station Blackout (PSAM-0458)
Proceedings of the Eighth International Conference on Probabilistic Safety Assessment & Management (PSAM)
Combined Cycle Power Plant
Energy and Power Generation Handbook: Established and Emerging Technologies