Manual for investigation and correction of feedwater heater failures
- Heat Exchanger Systems, Inc., Boston, MA (United States)
- Encor-America, Inc., Mountain View, CA (United States)
A closed surface feedwater heater performs a key role in the regenerative Rankine cycle. It heats water fed to the boiler, thereby, decreasing heat rate and improving cycle performance. Shell and tube heat exchangers are used to achieve this benefit . However, these heat exchangers often operate under conditions of high-velocity gases, liquids and combinations of the two, plus high temperatures and pressures. These conditions tend to cause high failure rates. Feedwater heater failures can have a detrimental impact on plant performance, availability, and other components. The failure causes may be related to design, fabrication practices, construction materials, abnormal operating modes, cycling, or the manner in which the feedwater heater is operated and/or maintained. Appropriate corrective actions, if any are possible, can only be selected after the root cause of a failure is identified. Simply identifying a failure mechanism does not necessarily identify the actual root cause. This manual was written for use by utility engineers and operation and maintenance personnel in investigating and correcting feedwater heater component failures. 63 figs., 4 tabs.
- Research Organization:
- Electric Power Research Inst., Palo Alto, CA (United States); Heat Exchanger Systems, Inc., Boston, MA (United States); Encor-America, Inc., Mountain View, CA (United States)
- Sponsoring Organization:
- EPRI; Electric Power Research Inst., Palo Alto, CA (United States)
- OSTI ID:
- 6368471
- Report Number(s):
- EPRI-GS-7390
- Country of Publication:
- United States
- Language:
- English
Similar Records
Analysis of feedwater heater performance data to detect and monitor pass partition plate leakage
Recommended guidelines for the operation and maintenance of feedwater heaters. Final report
Related Subjects
42 ENGINEERING
FEEDWATER HEATERS
FAILURES
TUBES
PLUGGING
CORROSION
EPRI
EROSION
HEAT EXCHANGERS
IMPINGEMENT
MANUALS
MECHANICAL VIBRATIONS
RANKINE CYCLE
CHEMICAL REACTIONS
DOCUMENT TYPES
HEATERS
THERMODYNAMIC CYCLES
200104* - Fossil-Fueled Power Plants- Components
420400 - Engineering- Heat Transfer & Fluid Flow