Load rejection operation in conventional power plants in ENEL - Italy
- Direzione Produzione e Trasmissione (IT)
- Direzione delle Costruzioni, ENEL, Via G.B. Martini, 3 00198 Rome (IT)
The capability of maintaining auxiliary load after a main breaker trip following an emergency in the electric power system is of major concern for any thermoelectric generating unit. In ENEL the reliability of run back to house load of fossil fired units has been greatly improved by adopting a new procedure. Instead of that originally recommended the new procedure allows to trip all fuel input to the boiler and maintains house load operating the turbine on mass and energy stored in the boiler. This procedure was qualified a few years ago and since then is used in the 320 MW units in operation (the main bulk of ENEL's thermal capacity) whether equipped with subcritical once through boilers or with assisted circulation drum boilers. A series of test carried out recently on supercritical 660 MW units have shown that adopting the same procedure these larger units can sustain successfully the run back to house load too. Up to now the new procedure has been used in many other thermal units of size ranging between 70 MW to 240 MW and can be performed in most of ENEL's thermal power plants.
- OSTI ID:
- 5743725
- Journal Information:
- IEEE Transactions on Energy Conversion; (USA), Vol. 4:3, Issue 3; ISSN 0885-8969
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
30 DIRECT ENERGY CONVERSION
BOILERS
DESIGN
ITALY
FOSSIL-FUEL POWER PLANTS
THERMOELECTRIC GENERATORS
RELIABILITY
LOAD MANAGEMENT
PERFORMANCE
DIRECT ENERGY CONVERTERS
EUROPE
MANAGEMENT
POWER PLANTS
THERMAL POWER PLANTS
WESTERN EUROPE
NESDPS Office of Nuclear Energy Space and Defense Power Systems
200105* - Fossil-Fueled Power Plants- Heat Utilization
421000 - Engineering- Combustion Systems
300302 - Thermoelectric Generators- Performance & Testing