A survey was carried out on CO2 & NOx emission-free hydrogen-fuelled power cycles, pinpointing characteristic points of steam turbine expansions. Innovative aspects arose for turbine design owing to unexplored steam thermodynamic states, severe operating conditions and lifetime issues. A Ljungström-type radial-flow turbine design was explored for such an application, investigating stress, cooling and thrust-balancing aspects. Massive cooling was recognized as a primary need to ensure safe turbine operation. To take technological and thermodynamic issues into account, an integrated procedure was set up for preliminary design. The final design is amply discussed.
Non conventional turbines for hydrogen fueled power plants / Cerri, G.; Battisti, L.; Soraperra, G.. - 6 A:(2003), pp. 9-17. ( Turbo Expo: power for land sea and water Atlanta, Georgia, USA June 16–19, 2003) [10.1115/GT2003-38324].
Non conventional turbines for hydrogen fueled power plants
Soraperra, G.Ultimo
2003-01-01
Abstract
A survey was carried out on CO2 & NOx emission-free hydrogen-fuelled power cycles, pinpointing characteristic points of steam turbine expansions. Innovative aspects arose for turbine design owing to unexplored steam thermodynamic states, severe operating conditions and lifetime issues. A Ljungström-type radial-flow turbine design was explored for such an application, investigating stress, cooling and thrust-balancing aspects. Massive cooling was recognized as a primary need to ensure safe turbine operation. To take technological and thermodynamic issues into account, an integrated procedure was set up for preliminary design. The final design is amply discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
