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Title: Survey of cyclic load capabilities of fossil-steam generating units. Final report

Abstract

The current practice of placing large-size fossil and nuclear steam-generating units into commercial operation will continue unabated for at least the next 10 years. Such units, intended primarily for base-load operation, generally do not have large-load-turndown and two-shift cycling capabilities. Consequently, a loss of operating flexibility is slowing being created with potential future problems for power system operation. This study was undertaken to assess the minimum operating load and cycling capabilities of individual fossil units. Data is compiled for each of 1,387 existing units of all sizes, design types, and fuel types. Summary tabulations are included for groups of units classified according to common design, operating pressure, and fuel. Specific constraints are identified that will prevent fossil-unit operation at lower minimum loads and cycling. Unit-regulating ranges, response rates, and response-rate constraints are also included. The main burden of power system cyclic load operations will have to be carried by both existing generation and new fossil-steam units designed for cyclic operation. The loading limits and constraints of fossil units included in this study provide useful, quantitative information for new unit design, new unit specifications, planning studies, generation scheduling, and future EPRI supported research projects.

Authors:
Publication Date:
Research Org.:
FPA Corp., Avon, CT (USA)
OSTI Identifier:
6451800
Alternate Identifier(s):
OSTI ID: 6451800
Report Number(s):
EPRI-EL-975
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; FOSSIL-FUEL POWER PLANTS; OPERATION; PERFORMANCE; BOILERS; CAPACITY; COAL; DATA COMPILATION; FUEL OILS; NATURAL GAS; POWER DEMAND; POWER GENERATION; POWER SYSTEMS; TABLES; CARBONACEOUS MATERIALS; DATA; DATA FORMS; ENERGY SOURCES; FLUIDS; FOSSIL FUELS; FUEL GAS; FUELS; GAS FUELS; GASES; INFORMATION; NUMERICAL DATA; OILS; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS; PETROLEUM PRODUCTS; POWER PLANTS; THERMAL POWER PLANTS 200100* -- Fossil-Fueled Power Plants-- Power Plants & Power Generation

Citation Formats

Fenton, F.H. Jr. Survey of cyclic load capabilities of fossil-steam generating units. Final report. United States: N. p., 1979. Web.
Fenton, F.H. Jr. Survey of cyclic load capabilities of fossil-steam generating units. Final report. United States.
Fenton, F.H. Jr. Thu . "Survey of cyclic load capabilities of fossil-steam generating units. Final report". United States.
@article{osti_6451800,
title = {Survey of cyclic load capabilities of fossil-steam generating units. Final report},
author = {Fenton, F.H. Jr.},
abstractNote = {The current practice of placing large-size fossil and nuclear steam-generating units into commercial operation will continue unabated for at least the next 10 years. Such units, intended primarily for base-load operation, generally do not have large-load-turndown and two-shift cycling capabilities. Consequently, a loss of operating flexibility is slowing being created with potential future problems for power system operation. This study was undertaken to assess the minimum operating load and cycling capabilities of individual fossil units. Data is compiled for each of 1,387 existing units of all sizes, design types, and fuel types. Summary tabulations are included for groups of units classified according to common design, operating pressure, and fuel. Specific constraints are identified that will prevent fossil-unit operation at lower minimum loads and cycling. Unit-regulating ranges, response rates, and response-rate constraints are also included. The main burden of power system cyclic load operations will have to be carried by both existing generation and new fossil-steam units designed for cyclic operation. The loading limits and constraints of fossil units included in this study provide useful, quantitative information for new unit design, new unit specifications, planning studies, generation scheduling, and future EPRI supported research projects.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {2}
}

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