0
Research Papers: Gas Turbines: Combustion, Fuels, and Emissions

Analysis of a Fuel Flexible Micro Gas Turbine Combustor Through Numerical Simulations

[+] Author and Article Information
Alessandro Bo

Department of Mechanical Engineering,
Roma Tre University,
Via Vito Volterra 62,
Rome 00146, Italy
e-mail: ing.alessandro.bo@gmail.com

Eugenio Giacomazzi

Energy Technology Department,
ENEA Casaccia Research Center,
Via Anguillarese 301,
Rome 00123, Italy
e-mail: eugenio.giacomazzi@enea.it

Giuseppe Messina, Antonio Di Nardo

Energy Technology Department,
ENEA Casaccia Research Center,
Via Anguillarese 301,
Rome 00123, Italy

1Corresponding author.

Contributed by the Combustion and Fuels Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received November 22, 2017; final manuscript received June 28, 2018; published online August 20, 2018. Assoc. Editor: Eric Petersen.

J. Eng. Gas Turbines Power 140(12), 121504 (Aug 20, 2018) (10 pages) Paper No: GTP-17-1628; doi: 10.1115/1.4040737 History: Received November 22, 2017; Revised June 28, 2018

The work in this paper investigates on how a fuel flexible microgas turbine (MGT) combustion chamber, developed by ANSALDO ENERGIA and installed in a Turbec T100 P MGT, can operate when transferring from natural gas (NG) to a hydrogen-rich syngas. A syngas composition, which satisfies the fuel supply system specifications, is identified. Such syngas contains (by volume) 45% of hydrogen, 50% of carbon dioxide, and 5% of methane. The transfer procedure from NG to syngas is defined and modeled. A series of nonreactive and reactive Reynolds-averaged numerical simulations (RANS) on a full-scale three-dimensional (3D) model of the combustion chamber is then performed. The thermo-fluid dynamics inside its casing, the combustion regimes, the heat transfer across the liner walls as well as NOx emissions are evaluated. Results provide useful information on the operational problems associated with the fuel change and on how to define a successful fuel transfer procedure.

FIGURES IN THIS ARTICLE
<>
Copyright © 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

IEA, 2017, “Renewables 2017: Analysis and Forecast to 2022,” International Energy Agency, Paris, France, Technical Report.
ETN, 2017, “R&D Recommendation Report for the Next Generation of Gas Turbines,” European Turbine Network, Brussels, Belgium, TechnicaL Report.
Cameretti, M. C. , and Tuccillo, R. , 2015, “Combustion Features of a Bio-Fuelled Micro-Gas Turbine,” Appl. Therm. Eng., 89, pp. 280–290. [CrossRef]
Renzi, M. , Riolfi, C. , and Baratieri, M. , 2017, “Influence of Syngas Feed on the Combustion Process and Performance of a Micro Gas Turbine With Steam Injection,” Energy Procedia, 105, pp. 1665–1670. [CrossRef]
Abagnale, C. , Cameretti, M. C. , De Robbio, R. , and Tuccillo, R. , 2016, “CFD Study of a MGT Combustor Supplied With Syngas,” Energy Procedia, 101, pp. 933–940. [CrossRef]
Ghenai, C. , 2015, “Combustion of Syngas Fuel in Gas Turbine Can Combustor,” Adv. Mech. Eng., 2, pp. 342–357.
International Gas Union, 2011, “Guidebook to Gas Interchangeability and Gas Quality,” Oslo, Norway, Technical Report.
Igoe, M. , and Stocker, A. , 2013, “Extended Fuels Capability of Siemens' SGT-400 DLE Combustion System,” IDGTE symposium 2013, Milton Keynes, UK, Technical Report.
Lefebvre, A. H. , and Ballal, D. R. , 2010, Gas Turbine Combustion: Alternative Fuels and Emissions, 3rd ed., Taylor & Francis, Boca Raton, FL, pp. 537.
Cuoci, A. , Frassoldati, A. , Faravelli, T. , and Ranzi, E. , 2015, “OpenSMOKE++: an Object-Oriented Framework for the Numerical Modeling of Reactive Systems With Detailed Kinetic Mechanisms,” Comput. Phys. Commun., 192, pp. 237–264. [CrossRef]
Cuoci, A. , Frassoldati, A. , Faravelli, T. , and Ranzi, E. , 2013, “Numerical Modeling of Laminar Flameswith Detailed Kinetics Based on the Operator-Splitting Method,” Energy Fuels, 27(12), pp. 7730–7753. [CrossRef]
Ranzi, E. , Frassoldati, A. , Grana, R. , Cuoci, A. , Faravelli, T. , Kelley, A. , and Law, C. , 2012, “Hierarchical and Comparative Kinetic Modeling of Laminar Flame Speeds of Hydrocarbon and Oxygenated Fuels,” Prog. Energy Comb. Sci., 38(4), pp. 468–501. [CrossRef]
Daniele, S. , Jansohn, P. , Mantzaras, J. , and Boulouchos, K. , 2011, “Turbulent Flame Speed for Syngas at Gas Turbine Relevant Conditions,” Proc. Combust. Inst., 33(2), pp. 2937–2944. [CrossRef]
Smooke, M. D. , Puri, I. K. , and Seshadri, K. , 1986, “A Comparison Between Numerical Calculations and Experimental Measurements of the Structure of a Counterflow Diffusion Flame Burning Diluted Methane in Diluted Air,” Proc. Combust. Inst., 21(1), pp. 1783–1792. [CrossRef]
Williams, F. A. , 1985, Combustion Theory: The Fundamental Theory of Chemically Reacting Flow Systems, 2nd ed., Addison/Wesley Pub.Co., Boston, MA.
Borghi, R. , 1988, “Turbulent Combustion Modeling,” Prog. Energy Comb. Sci., 14(4), pp. 245–292. [CrossRef]
Glassman, I. , Yetter, R. A. , and Glumac, N. , 2014, Combustion, Academic Press Inc., Cambridge, UK.
Meneveau, C. , and Poinsot, T. , 1991, “Stretching and Quenching of Flamelets in Premixed Turbulent Combustion,” Combust. Flame, 86(4), pp. 311–332. [CrossRef]

Figures

Grahic Jump Location
Fig. 1

Schematics of the ARI 100 T2 combustor

Grahic Jump Location
Fig. 2

Fuel mass flow rates evolution during the transfer procedure (m˙f,pilot,CH4=0.4 g/s=const) at 100% load

Grahic Jump Location
Fig. 3

Fuel mole fraction evolution during the transfer procedure (m˙f,pilot,CH4=0.4 g/s=const) at 100% load

Grahic Jump Location
Fig. 4

Schematics of the fuel flexible ARI 100 T2 combustor

Grahic Jump Location
Fig. 5

SL and ϕpz evolution at 100% load (m˙f,pilot,CH4=0.4 g/s=const)

Grahic Jump Location
Fig. 6

δL, SL, ST, and ST/SL evolution at 100% load (m˙f,pilot,CH4=0.4 g/s=const)

Grahic Jump Location
Fig. 7

Validation of the Smooke simplified chemical mechanism for the composition at 300 s

Grahic Jump Location
Fig. 8

Case 2—combustor outlet temperature

Grahic Jump Location
Fig. 9

Radial temperature profile at the combustor outlet section and mass weighted average COT variation during the transition phase from methane to syngas

Grahic Jump Location
Fig. 10

Heat of reaction (1–2 from top)

Grahic Jump Location
Fig. 11

Case 2—liner inner walls temperature

Grahic Jump Location
Fig. 12

Case 1–2 (from top)—combustion regimes

Tables

Errata

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In