Experimental investigation of the impacts of selective exhaust gas recirculation on a micro gas turbine

Exhaust gas recirculation with highly oxygenated fuels in gas turbines

“…Hasemann et al [12], Evulet et al [13] and Best et al [14] individually experimented on what rates of EGR are possible and observed consequent NOx emission reduction while CO and other emissions increased. These findings were also confirmed by Bellas et al [15] who used selective EGR. Simulation studies like that of Giorgetti et al [16] and Li et al [17] have shown a new use for EGR, as the higher CO2 concentration in flue gases increased the electrical efficiency…”

“…Fuel, vol. 278, 15 Oct. 2020, 118285 https://doi.org/10.1016/j.fuel.2020.118285 the reduction of soot particles, whereas other studies confirmed a beneficial impact of blending conventional fuels, such as jet-A fuel [8] with other oxygenated fuels like biodiesel [9] or ethanol [10].…”

“…Fuel, vol. 278, 15 Oct. 2020, 118285 https://doi.org/10.1016/j.fuel.2020.118285 of the combined gas turbine and carbon capture plant. Cameretti et al [18] showed that with high external EGR rate, it is possible to obtain conditions, resembling MILD combustion.…”

Transient CO2 capture for open-cycle gas turbines in future energy systems

“…From Table 1, the relationship between the power output and the exhaust gas flowrate is linear, therefore, any changes in power directly corresponds to exhaust flowrates. Bellas et al [38] showed the changes in gas turbine exhaust composition during different power outputs, however, incorporating this aspect is beyond the scope of this study. In future energy systems, the behaviour of OCGT generation may not be identical to that shown in Section 2, so here we focus on one of the most challenging scenarios exhibited in a real system.…”

Part load operation of natural gas fired power plant with CO2 capture system for selective exhaust gas recirculation

“…However, this work emphasis on a novel option of selective exhaust gas recirculation (SEGR), a concept of selectively recycling CO2 from the exhaust of gas-fired power plant back to the entering air stream of the compressor of the gas turbine thereby raising CO2 content and reducing the flue gas flow rate [16,17]. SEGR functions either in parallel or in series and enhances CO2 concentration to around 13-14 vol.% well above 6.6 vol.% at about 35% EGR ratio.…”