Research on Influence of Co-firing Green Hydrogen on Thermal Performance of Combined Cycle Power Generation Systems
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维普
随着我国电力产业从化石能源向清洁低碳能源转变,考虑提高可再生能源在电力系统中的占比对推动能源消费革命具有重要意义.研究了燃气-蒸汽联合循环发电机组掺烧绿氢对系统热力性能的影响.分析了H2掺混比例从10％提高到50％过程中,所需燃料的质量流量、燃机的排烟参数、燃气轮机和汽轮机的出力以及系统在不同工况下的年CO2减排量的变化.研究结果表明,随着H2掺混比例的提高,燃汽轮机的排烟温度从593.3 ℃升高到623.19 ℃,燃气流量从653.9 kg/s下降到592.4 kg/s,汽轮机出力提高了 0.15％,而燃气轮机的出力降低.此外,当H2掺混比例为50％以及在满负荷工况下,系统年CO2减排量为26.64× 104 t.
As China's power industry shifts from fosst fuels to clean and low-carbon energy it is of great significance to consider increasing the proportion of renewable energy in the power system to promote the energy consumprion revolution.This article investigated the effect of co-firing green hydrogen on the thermal performance of Combined Cycle Power Plant.Discussed the changes in the required fuel mass flow rate,exhaust parameters of the gas turbine,power output of the gas turbine and the steam turbine,as well as the annual CO2 reduction of the proposed system under different operating conditions during the process of increasing the H2 blending ratio from 10％to 50％.The research results show that with the increase of H2 blending ratio,the exhaust temperature of the gas turbine increases from 593.3 ℃ to 623.19 ℃,the mass flow rate of exhaust gas decreases from 653.9 kg/s to 592.4 kg/s,and the power output of the steam turbine increases by 0.15％,while the output of the gas turbine decreases.In addition,when the H2 blending ratio is 50％and under the full load conditions,the annual emission reduction of the system is 266 400 tons.
combined cycle power plantco-firing green hydrogenthermal performance analysis
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维普
