PURPOSE: To make turbine inlet temperature go up as well as to improve thermal efficiency in the whole lot of a plant, by installing a combustor in a pipe line leading cathode exhaust gas into a turbine, while leading a part of anode exhaust gas into this combustor, and making it into combustion together with the cathode exhaust gas.
CONSTITUTION: The cathode exhaust gas branched off from cathode circulating gas 78 in cathode exhaust gas 76 is fed to a combustor 170 installed in a pipe line leading the cathode exhaust gas 76 into an expansion turbine 84 as combustion air 168. In addition a part of combustion gas 64 to be fed to a combustion part 62 of a modifier 24 is fed to this combustor 170 as combustion gas 172. The combustor 170 uses the combustion gas 172 for fuel and burns a part of the cathode exhaust gas 76 as the combustion air 168, feeding the expansion turbine 84 with combustion exhaust gas as turbine inlet ags 174. With this constitution, thermal efficiency in the expansion turbine 84 is raised and, what is more, the efficiency of an exhaust heat recovery system 92 is raisable.
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ARAKAWA TADAO
NAGASAKI NOBUO
SUGITA NARIHISA
TAKEUCHI MASAHITO
HITACHI ENG CO LTD
| JPS5482636A | 1979-07-02 | |||
| JPS5719974A | 1982-02-02 | |||
| JPS5329534A | 1978-03-18 | |||
| JPS587772A | 1983-01-17 |