Numerical study on oxygen-enriched combustion chamber of micro gas turbines
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.
Adopt optimum compound design to study the regression relation of hybrid maize yield, relating to density ,quantity applied of feirtilizer-N、 fertilizer-P_2O_5、 fertilizer-K_2O Regression model was set and the optimum cultivation technique was obtained by the aid of computer statistics.