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Modélisation de centrales électriques à turbine à gaz régénératives avec intégration de gaz de synthèse.

Modeling of syngas integrated regenerative gas turbine power plants.

Numéro : 2105

Auteurs : REU C. J., SIDDHARTH P., MOMIN ELHADI A.

Résumé

Wood chips available in Sudan can be successfully used in gasification process on the same basis as bio-renewable energy resources. Simulation models were used to characterize the gasification process integrated with a regenerative gas turbine unit. The results showed that, increasing the gasification temperature leads to a slow down the amount of the actual air required for Wood Chips gasification. Using air as a gasification medium, results revealed that the equivalence ratio growths at low values has significant effect of the gasifier’s actual air and led to increase the required amount of the actual air for Wood Chips gasification process. Higher values of the gasification pressure revealed higher value of the RGT power. It was observed that, higher gasifier’s pressure was responsible for the higher RGT power. Low equivalence ratio rates (ER) revealed higher RGT power at the lower temperature and higher pressure of the gasifier respectively. The increase of the gasification pressure revealed an increase of the actual air required for Wood Chips gasification. Results concluded that, increasing of moisture content released massive decrease on lower heating value (LHV) of the syngas, thus influencing the increase of the RGT combustor fuel rate. Moreover, results concluded that, lower heat syngas value (LHV), will demand more fuel by the RGT combustor to derive the plant. Whereas, at the optimum equivalence ratio (ER), the syngas heat value reached its maximum energy content, which revealed a higher RGT power. In-addition results observed that, the combustor fuel’s rate revealed higher values amid increasing of the Biomass moisture content. The higher the gasification temperature is the higher the combustor fuel rate, due slowdown of the syngas energy content. the RGT thermal efficiency is higher at the optimum equivalence ratio ER (18%), which attained a value of 61.80%, for RGT compressor inlet temperature of 200K, and compression ratio of 15. At ER of 20%, gasification temperature of 1500 K, and a pressure of 30 bar, the results revealed slowdown in the concentration of the constituent’s CO, N2, amid increasing of the moisture content, whereas a gradual increase of the concentration of CO2, CH4,H2 and H2O, have been observed.

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Pages : 10 p.

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Détails

  • Titre original : Modeling of syngas integrated regenerative gas turbine power plants.
  • Identifiant de la fiche : 30030466
  • Langues : Anglais
  • Sujet : Technologie
  • Source : 2022 Purdue Conferences. 19th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 10/07/2022

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