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根据氢-氧联合循环的特点,建立了相应的物质和能量平衡模型,并在此基础上对简单循环、回热型循环以及再热回热型的效率进行了计算和比较.结果表明:在简单循环的基础上,采用回热系统效率可提高10%;一次再热在回热的基础上可再提高效率2%;同样二次再热也可提高效率2%.因此,燃用氢气的燃气轮机和高压、低压蒸汽轮机组成的联合循环系统,从整体上提高了循环的热效率.此外,氢-氧联合循环具有无温室气体排放、效率高等特点,在今后氢能的大规模发电上有着良好的发展前景.
According to the characteristics of hydrogen-oxygen combined cycle, the corresponding material and energy balance models are established, and the efficiency of simple cycle, recuperative cycle and reheat recuperation are calculated and compared. The results show that in the Simple cycle based on the use of regenerative system efficiency can be increased by 10%; a reheat on the basis of the heat can be further increased efficiency of 2%; the same second reheat can also improve the efficiency of 2%. Therefore, the use of hydrogen gas Gas turbines and high pressure, low pressure steam turbines combined cycle system to improve the overall cycle of thermal efficiency. In addition, hydrogen-oxygen combined cycle with no greenhouse gas emissions, high efficiency, large-scale hydrogen in the future have a good power generation The development prospects.