In this paper a critical analysis of H2/O2 cycles is presented. They seem to have great thermodynamic potentialities, but in these analyses it is very important to adopt reasonable assumptions. In fact choosing very high values of the maximum pressure and temperature and neglecting the energy requirements for oxygen and hydrogen compression and production, these cycles can attain very high efficiency: from 65 to 69%, depending on the typology of the thermodynamic cycle. In the present paper the H 2/O2 cycles, one typology proposed by authors and another by other ones , have been analysed under realistic assumptions (with respect to the currently available technology) of the cycle parameters - TIT and maximum pressure - and taking into account the overall energetic requirements (H2 and O2 production and compression). The cycles, suitable for these assumptions, have been investigated by means of a parametric analysis as a function of the main cycle parameters. Summarizing, the results of the developed analysis show that the H2/O2 cycles, investigated here, yield very poor performance if all energetic requirements are taken into account.
Gambini, M., Guizzi, G.L., & Vellini, M. (2003). Critical analysis of advanced H2/O2 cycles based on steam-methane reforming. In ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference (GT2003): June 16–19, 2003 , Atlanta, Georgia, USA (pp.271-279). ASME.
|Autori:||Gambini, M; Guizzi, GL; Vellini, M|
|Titolo:||Critical analysis of advanced H2/O2 cycles based on steam-methane reforming|
|Nome del convegno:||ASME Turbo Expo|
|Luogo del convegno:||Atlanta (USA)|
|Anno del convegno:||2003|
|Enti collegati al convegno:||International Gas Turbine Institute, ASME|
|Data di pubblicazione:||2003|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1115/GT2003-38441|
|Settore Scientifico Disciplinare:||Settore ING-IND/09 - Sistemi per l'Energia e L'Ambiente|
|Tipologia:||Intervento a convegno|
|Citazione:||Gambini, M., Guizzi, G.L., & Vellini, M. (2003). Critical analysis of advanced H2/O2 cycles based on steam-methane reforming. In ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference (GT2003): June 16–19, 2003 , Atlanta, Georgia, USA (pp.271-279). ASME.|
|Appare nelle tipologie:||02 - Intervento a convegno|