TY - JOUR
T1 - Ammonia-fired chemically recuperated gas turbine
T2 - Thermodynamic analysis of cycle and recuperation system
AU - Pashchenko, Dmitry
AU - Mustafin, Ravil
AU - Karpilov, Igor
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/8/1
Y1 - 2022/8/1
N2 - Ammonia is one of the prospective alternatives to hydrocarbon fuels. Currently, there are projects for developing of ammonia fired gas turbines up to 40 MW. The addition of thermochemical exhaust gas heat recuperation systems to ammonia-fired gas turbines could be a promising way to increase their efficiency. In this paper, the concept of an ammonia-fired chemically recuperated gas turbine (CRGT) is thermodynamically analyzed. Gas turbine with thermochemical recuperation by ammonia decomposition is analyzed via Aspen HYSYS for a wide range of operating parameters: turbine inlet temperature of 700–1300 °C, the pressure of 6–21 bar. The thermochemical exhaust heat recuperation system is recovering the exhaust heat in a reformer (for the endothermic reaction of ammonia decomposition), a heater (to preheat ammonia to the temperature of the decomposition reaction), and a regasifier (for regasification of liquid ammonia). The thermochemical exhaust heat recuperation system makes it possible to recover up to 43% of exhaust heat. The maximum efficiency of CRGT is observed at 9 bar for Tin = 700 °C; 12 bar at Tin = 800 °C; 15 bar at Tin = 900 °C; 18 bar at Tin = 1000 °C. In the temperature range above Tin > 1000 °C, when the pressure rises above 15 bar, the efficiency does not increase significantly.
AB - Ammonia is one of the prospective alternatives to hydrocarbon fuels. Currently, there are projects for developing of ammonia fired gas turbines up to 40 MW. The addition of thermochemical exhaust gas heat recuperation systems to ammonia-fired gas turbines could be a promising way to increase their efficiency. In this paper, the concept of an ammonia-fired chemically recuperated gas turbine (CRGT) is thermodynamically analyzed. Gas turbine with thermochemical recuperation by ammonia decomposition is analyzed via Aspen HYSYS for a wide range of operating parameters: turbine inlet temperature of 700–1300 °C, the pressure of 6–21 bar. The thermochemical exhaust heat recuperation system is recovering the exhaust heat in a reformer (for the endothermic reaction of ammonia decomposition), a heater (to preheat ammonia to the temperature of the decomposition reaction), and a regasifier (for regasification of liquid ammonia). The thermochemical exhaust heat recuperation system makes it possible to recover up to 43% of exhaust heat. The maximum efficiency of CRGT is observed at 9 bar for Tin = 700 °C; 12 bar at Tin = 800 °C; 15 bar at Tin = 900 °C; 18 bar at Tin = 1000 °C. In the temperature range above Tin > 1000 °C, when the pressure rises above 15 bar, the efficiency does not increase significantly.
KW - Ammonia
KW - Gas turbine
KW - Hydrogen-rich fuel
KW - Thermochemical recuperation
KW - Thermodynamic analysis
UR - http://www.scopus.com/inward/record.url?scp=85129355981&partnerID=8YFLogxK
U2 - 10.1016/j.energy.2022.124081
DO - 10.1016/j.energy.2022.124081
M3 - 文章
AN - SCOPUS:85129355981
SN - 0360-5442
VL - 252
JO - Energy
JF - Energy
M1 - 124081
ER -
