TY - JOUR
TI - Performance analysis of mixing syngas from biomass gasification on the combined cycle power plant
AU - Pei Yufeng
AU - Chen Xiaoxu
AU - Sun Wei
AU - Zhu Bingqi
AU - Wang Shucheng
JN - Thermal Science
PY - 2025
VL - 29
IS - 4
SP - 2701
EP - 2711
PT - Article
AB - A combined cycle power plant coupled with biomass gasification system is pro-posed in this present research. The thermodynamic analysis is performed by the impact factor of the mixing ratio and the equivalence ratio. The results show that, with the increase of the mixing ratio from 0% to 50%, the syngas flow from biomass gasification increases from 0 kg/s to 54.20 kg/s. The inlet airflow decreases from 654.6 kg/s to 576.3 kg/s. The temperature of the flue gas increases from 586.5°C to 591.4°C. Besides, the power output of the gas turbine increases from 260.51 MW to 264.61MW, while, the power output of the steam turbine drops from 131.05 MW to 126.89 MW. Additionally, with the equivalence ratio increasing from 0.20 to 0.40, the H2 composition decreases from 3.01% to 1.53% and the CO composition drops rapidly from 23.75% to 10.44%. The net calorific value of the syngas decreases from 6709.85 kJ/kg to 3369.03 kJ/kg, the mass-flow rate of both the syngas and the flue gas increase from 6.88 kg/s to 9.02 kg/s and from 575.17 kg/s to 601.00 kg/s, respectively. Besides, the power output of the gas turbine increases from 264.49 MW to 270.17 MW, while, the power output of the steam turbine drops from 127.01 MW to 121.28 MW.