A new oxygen-enrich combustion chamber of micro gas turbine running with flue gas circulating was preliminary designed.The basic geometric dimension of the combustion chamber

the location of the secondary air and mixing cooling hole

and the swirl burner's structure were designed to meet the requirements of high combustion efficiency and stability

total pressure recovery coefficient

outlet temperature field regulation and other aspects.Besides

the CFD software was used to study the performance of designed combustion chamber

like hot flow field

combustion stability

combustion efficiency

pressure loss and so on.The results show that

the combustion chamber has reasonable flow field

stable combustion

high combustion efficiency and small pressure loss

which basically satisfies the design requirements.