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Ultra Low Emission Gas Turbine Combustion: An Expoerimental Investigation of Catalytically Stabilizws Lean Pre-mixed Combustion on Modern Gas Turbine Conditions
KTH, Skolan för industriell teknik och management (ITM), Energiteknik, Kraft- och värmeteknologi.
KTH, Skolan för kemivetenskap (CHE), Kemiteknik, Kemisk teknologi.
KTH, Skolan för industriell teknik och management (ITM), Energiteknik, Kraft- och värmeteknologi.
KTH, Skolan för industriell teknik och management (ITM), Energiteknik, Kraft- och värmeteknologi.
Vise andre og tillknytning
2004 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert)
sted, utgiver, år, opplag, sider
2004.
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-78425OAI: oai:DiVA.org:kth-78425DiVA, id: diva2:492470
Konferanse
24 th Congress of Internal Com bustion Engines (CIMAC), Kyoto, Japan, June, 2004
Merknad

QC 20120219

Tilgjengelig fra: 2012-02-08 Laget: 2012-02-08 Sist oppdatert: 2013-11-25bibliografisk kontrollert
Inngår i avhandling
1. Experimental Investigations of High Pressure Catalytic Combustion for Gas Turbine Applications
Åpne denne publikasjonen i ny fane eller vindu >>Experimental Investigations of High Pressure Catalytic Combustion for Gas Turbine Applications
2013 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

This work is devoted to generate knowledge and high quality experimental data of catalytic combustion at operational gas turbine conditions.

The initial task of the thesis work was to design and construct a high pressure combustion test facility, where the catalytic combustion experiments can be performed at real gas turbine conditions. With this in mind, a highly advanced combustion test facility has been designed, constructed and tested. This test facility is capable of simulating combustion conditions relevant to a wide range of operating gas turbine conditions and different kinds of fuel gases. The shape of the combustor (test section) is similar to a “can” type gas turbine combustor, but with significant differences in its type of operation. The test combustor is expected to operate at near adiabatic combustion conditions and there will be no additions of cooling, dilution or secondary supply of air into the combustion process. The geometry of the combustor consists of three main zones such as air/fuel mixing zone, catalytic reaction zone and downstream gas phase reaction zone with no difference of the mass flow at inlet and exit. The maximum capacity of the test facility is 100 kW (fuel power) and the maximum air flow rate is 100g/s.

The significant features of the test facility are counted as its operational pressure range (1 – 35 atm), air inlet temperatures (100 – 650 °C), fuel flexibility (LHV 4 - 40 MJ/m3) and air humidity (0 – 30% kg/kg of air). Given these features, combustion could be performed at any desired pressure up to 35 bars while controlling other parameters independently. Fuel flexibility of the applications was also taken into consideration in the design phase and proper measures have been taken in order to utilize two types of targeted fuels, methane and gasified biomass.

Experimental results presented in this thesis are the operational performances of highly active precious metal catalysts (also called as ignition catalysts) and combinations of precious metal, perovskites and hexaaluminate catalysts (also called as fully catalytic configuration). Experiments were performed on different catalytic combustor configurations of various types of catalysts with methane and simulated gasified biomass over the full range of pressure. The types of catalysts considered on the combustor configurations are palladium on alumina (Pd/AL2O3), palladium lanthanum hexaaluminate (PdLaAl11O19), platinum on alumina (Pt/AL2O3),and palladium:platinum bi-metal on alumina (Pd:Pt/AL2O3). The influence of pressure, inlet temperature, flow velocity and air fuel ratio on the ignition, combustion stability and emission generation on the catalytic system were investigated and presented.

Combustion catalysts were developed and provided mainly by the project partner, the Division of Chemical Technology, KTH. Division of Chemical Reaction Technology, KTH and Istituto di Ricerche sulla Combustione (CNR) Italy were also collaborated with some of the experimental investigations by providing specific types of catalysts developed by them for the specific conditions of gas turbine requirements.

sted, utgiver, år, opplag, sider
Stockholm: KTH Royal Institute of Technology, 2013. s. xxiv, 122
Serie
TRITA-KRV, ISSN 1100-7990 ; 13:10
Emneord
Gas Turbine Combustion, Catalytic Combustion, High Pressure, Ultra-low emissions
HSV kategori
Forskningsprogram
SRA - Energi
Identifikatorer
urn:nbn:se:kth:diva-134445 (URN)978-91-7501-937-6 (ISBN)
Disputas
2013-12-11, M3, Brinellvägen 64, KTH, Stockholm, 10:00 (engelsk)
Opponent
Veileder
Forskningsfinansiär
Swedish Energy Agency
Merknad

QC 20131125

Tilgjengelig fra: 2013-11-25 Laget: 2013-11-25 Sist oppdatert: 2017-03-07bibliografisk kontrollert

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