Integrated control for a steam generator circulating fluidized bed firing system
The invention comprises an integrated control means, and particularly at partial loads, for a steam generator having a circulating fluidized bed combustion system wherein gas recirculation means is used to supplement combustion air flow to maintain gas velocity in the circulation loop sufficient to entrain and sustain particle mass flow rate at a level required to limit furnace gas temperature to a predetermined value as 1550 F. and wherein gas recirculation mass flow apportions heat transfer from the gas and recirculated particles among the respective portions of the steam generator fluid heat absorption circuits, gas and circulating particle mass flow rates being controlled selectively in a coordinated manner to complement each other in the apportionment of heat transfer optimally among the fluid heat absorption circuits while maintaining furnace gas temperature at a predetermined set point.
- Assignee:
- Electrodyne Research Corporation
- Patent Number(s):
- US 4453495
- OSTI ID:
- 6452519
- Country of Publication:
- United States
- Language:
- English
Similar Records
Gas and particle separation means for a stem generator circulating fluidized bed firing system
Fast fluidized bed steam generator
Related Subjects
421000* -- Engineering-- Combustion Systems
ABSORPTION HEAT
AIR FLOW
BOILERS
CIRCULATING SYSTEMS
COMBUSTORS
CONTROL
CONTROL SYSTEMS
ENERGY
ENERGY TRANSFER
ENTHALPY
FLOW RATE
FLUE GAS
FLUID FLOW
FLUIDIZED-BED COMBUSTORS
GAS FLOW
GASEOUS WASTES
HEAT
HEAT TRANSFER
PHYSICAL PROPERTIES
STEAM GENERATORS
TEMPERATURE CONTROL
THERMODYNAMIC PROPERTIES
VAPOR GENERATORS
WASTES