Sequential Combustion Technology for Gas Turbine Power Generation with CO2 Mitigation

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Unité de recherche

INNOSUISSE

Numéro de projet

8457.2;7 EPRP-IW

Titre du projet

Sequential Combustion Technology for Gas Turbine Power Generation with CO2 Mitigation

Titre du projet anglais

Sequential Combustion Technology for Gas Turbine Power Generation with CO2 Mitigation

Textes relatifs à ce projet

	Allemand	Français	Italien	Anglais
Description succincte	-	-	-
Résumé des résultats (Abstract)	-	-	-

Textes saisis

Catégorie	Texte
Description succincte (Anglais)	Sequential Combustion Technology for Gas Turbine Power Generation with CO2 Mitigation
Résumé des résultats (Abstract) (Anglais)	Future gas turbines must be able to offer technological solutions for the mitigation of CO2 emissions in power generation. Initial mitigation technologies will be based on either (a) post combustion removal with exhaust gas recirculation or (b) hydrogen combustion. The ALSTOM GT26, a reheat gas turbine with sequential combustion, offers an interesting platform for realizing these options. In (a) the main challenge is achieving stable and complete combustion at the highest levels of exhaust gas recirculation, where the oxygen excess concentration is small. Here tasks will focus on (i) extension of fundamental knowledge on combustion systems with low oxygen excess and (ii) enhancing combustion stability through in situ production of hydrogen. For option (b) the challenge is on understanding the effects of fuel reactivity on ignition delay times and thus, work will be aimed at creating reliable numerical models for predicting ignition delay characteristics. Based on these fundamental results a sequential combustor will be designed together with the industrial partner, providing a basis for future development of this key component for the ALSTOM GT26 machine.

Catégorie

Texte

Description succincte
(Anglais)

Sequential Combustion Technology for Gas Turbine Power Generation with CO2 Mitigation

Résumé des résultats (Abstract)
(Anglais)

Future gas turbines must be able to offer technological solutions for the mitigation of CO2 emissions in power generation. Initial mitigation technologies will be based on either (a) post combustion removal with exhaust gas recirculation or (b) hydrogen combustion. The ALSTOM GT26, a reheat gas turbine with sequential combustion, offers an interesting platform for realizing these options. In (a) the main challenge is achieving stable and complete combustion at the highest levels of exhaust gas recirculation, where the oxygen excess concentration is small. Here tasks will focus on (i) extension of fundamental knowledge on combustion systems with low oxygen excess and (ii) enhancing combustion stability through in situ production of hydrogen. For option (b) the challenge is on understanding the effects of fuel reactivity on ignition delay times and thus, work will be aimed at creating reliable numerical models for predicting ignition delay characteristics. Based on these fundamental results a sequential combustor will be designed together with the industrial partner, providing a basis for future development of this key component for the ALSTOM GT26 machine.