Oxy-fuel Turbo Machinery Development for Energy Intensive Industrial Applications

Oxyfuel combustion for CO2 capture in power plants

“…The resulting OGT-900 turbine was tested with the 170 MW th gas generator and was connected through the generator to a simulated grid with load banks. Short duration tests at low pressure and temperature have proven the controllability of the turbine by regulation of the WF stream and the generator excitation (Anderson et al, 2014). Further tests, e.g.…”

“…Furthermore, high CO emissions, high core temperatures, and ignition problems led to the conclusion that a redesign would be necessary for efficient oxyfuel combustion. In a later study a combustor can from the second generation SGT-900 is used (Anderson et al, 2014). The combustor has an improved oxygen injection system using a direct injector instead of air-fuel swirler nozzles as briefly described in Section 4.…”

“…Furthermore, the IP turbine delivers approx. 50% of the total power of the process (Anderson et al, 2014). Anderson et al (2008) present three generations of the IP turbine:…”

Making gas‐CCS a commercial reality: The challenges of scaling up

“…The intermediate‐pressure turbine inlet temperature is especially influential and substantially increases the CES cycle performance when 1150–1260°C or higher . A major technical challenge is, therefore, the development of the intermediate‐pressure turbine at increasing temperatures of operation since its working conditions are similar to those of gas turbines despite using a steam‐concentrated fluid . A 20 MW th pilot test facility has assessed the operation of the high‐pressure, high‐temperature gas generator, at temperatures >1600°C and pressures in excess of 100 bar, and it is reported that the CAPEX can be half that of a combined cycle turbine .…”

“…139 A major technical challenge is, therefore, the development of the intermediate-pressure turbine at increasing temperatures of operation since its working conditions are similar to those of gas turbines despite using a steam-concentrated fluid. 139,140 A 20 MW th pilot test facility has assessed the operation of the high-pressure, high-temperature gas generator, at temperatures >1600°C and pressures in excess of 100 bar, 34 and it is reported that the CAPEX can be half that of a combined cycle turbine. 138 It has more recently been reported that the CES cycle produces favorable results in terms of technology and environment; however, it is still under development to demonstrate the technology.…”