Open AccessModified Combined Cycle With Pressure Fluidized Bed Combustion Boiler
Author(s) -
Jacek Dzierzgowski,
Stanislaw Sobkowski
Publication year - 1992
Language(s) - English
Resource type - Conference proceedings
DOI - 10.1115/92-gt-146
Subject(s) - combined cycle , flue gas , boiler (water heating) , combustion , thermal efficiency , nuclear engineering , gas compressor , fluidized bed combustion , combustion chamber , natural gas , environmental science , gas turbines , waste management , fluidized bed , engineering , mechanical engineering , chemistry , organic chemistry
The article describes conversion of conventional steam cycle with 200 MW turbine into combined steam-gas cycle with pressure fluidized bed combustion boiler. In order to raise cycle thermal efficiency an additional combustion chamber before a gas turbine was introduced. Two modifications of the combined cycle were considered. In one of them natural gas in the additional combustion chamber is burnt with the boiler flue gas only. In the other gas is burnt with additional air stream taken from behind the gas turbine compressor. Optimizing calculations of the cycle thermal efficiency in function of some cycle’s main parameters were carried out.