One of the main challenges of biogas and syngas use as fuel in hybrid solid oxide fuel cell （SOFC） cycles is the variable nature of their composition, which may cause significant changes in plant performance. On the...One of the main challenges of biogas and syngas use as fuel in hybrid solid oxide fuel cell （SOFC） cycles is the variable nature of their composition, which may cause significant changes in plant performance. On the other hand, hydrogen is one of the main components in some types of gasified biomass and syngas. Therefore, it is vital to investigate the influences of hydrogen fraction in inlet fuel on the cycle performance. In this work, a steady-state simulation of a hybrid tubular SOFC-gas turbine （GT） cycle is first presented with two configurations： system with and without anode exhaust recirculation. Then, the results of the model when fueled by syngas, biofuel, and gasified biomass are analyzed, and significant dependency of system operational parameters on the inlet fuel composition are investigated. The analysis of impacts of hydrogen concentration in the inlet fuel on the performance of a hybrid tubular SOFC and gas turbine cycle was carried out. The simulation results were considered when the system was fueled by pure methane as a reference case. Then, the performance of the hybrid SOFC-GT system when methane was partially replaced by H2 from a concentration of 0% to 95% with an increment of 5% at each step was investigated. The system performance was monitored by investigating parameters like temperature and flow rate of streams in different locations of the cycle; SOFC and system thermal efficiency; SOFC, GT, and cycle net and specific work; air to fuel ratio; as well as air and fuel mass flow rate. The results of the sensitivity analysis demonstrate that hydrogen concentration has significant effects on the system operational parameters, such as efficiency and specific work.展开更多
从欧盟FP-6 SOFC600项目组获悉，荷兰能源研究中心（Energy Research Centre of the Netherlands）采用大连化物所程谟杰研究员研制的新阳极材料作为阳极功能层，成功制备出性能指标超过先前的电池，在800℃下氢燃料的电池面电阻降低到0...从欧盟FP-6 SOFC600项目组获悉，荷兰能源研究中心（Energy Research Centre of the Netherlands）采用大连化物所程谟杰研究员研制的新阳极材料作为阳极功能层，成功制备出性能指标超过先前的电池，在800℃下氢燃料的电池面电阻降低到0．16Ω．cm^2，在600℃下氢燃料和甲烷燃料的电池面电阻分别降低到0．49和0．51Ω．cm^2，提前达到项目计划的电池性能指标要求。展开更多
文摘One of the main challenges of biogas and syngas use as fuel in hybrid solid oxide fuel cell （SOFC） cycles is the variable nature of their composition, which may cause significant changes in plant performance. On the other hand, hydrogen is one of the main components in some types of gasified biomass and syngas. Therefore, it is vital to investigate the influences of hydrogen fraction in inlet fuel on the cycle performance. In this work, a steady-state simulation of a hybrid tubular SOFC-gas turbine （GT） cycle is first presented with two configurations： system with and without anode exhaust recirculation. Then, the results of the model when fueled by syngas, biofuel, and gasified biomass are analyzed, and significant dependency of system operational parameters on the inlet fuel composition are investigated. The analysis of impacts of hydrogen concentration in the inlet fuel on the performance of a hybrid tubular SOFC and gas turbine cycle was carried out. The simulation results were considered when the system was fueled by pure methane as a reference case. Then, the performance of the hybrid SOFC-GT system when methane was partially replaced by H2 from a concentration of 0% to 95% with an increment of 5% at each step was investigated. The system performance was monitored by investigating parameters like temperature and flow rate of streams in different locations of the cycle; SOFC and system thermal efficiency; SOFC, GT, and cycle net and specific work; air to fuel ratio; as well as air and fuel mass flow rate. The results of the sensitivity analysis demonstrate that hydrogen concentration has significant effects on the system operational parameters, such as efficiency and specific work.
文摘从欧盟FP-6 SOFC600项目组获悉，荷兰能源研究中心（Energy Research Centre of the Netherlands）采用大连化物所程谟杰研究员研制的新阳极材料作为阳极功能层，成功制备出性能指标超过先前的电池，在800℃下氢燃料的电池面电阻降低到0．16Ω．cm^2，在600℃下氢燃料和甲烷燃料的电池面电阻分别降低到0．49和0．51Ω．cm^2，提前达到项目计划的电池性能指标要求。
