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.

References

References
1.
IEA
,
2017
, “
Renewables 2017: Analysis and Forecast to 2022
,” International Energy Agency, Paris, France, Technical Report.
2.
ETN
,
2017
, “
R&D Recommendation Report for the Next Generation of Gas Turbines
,” European Turbine Network, Brussels, Belgium, TechnicaL Report.
3.
Cameretti
,
M. C.
, and
Tuccillo
,
R.
,
2015
, “
Combustion Features of a Bio-Fuelled Micro-Gas Turbine
,”
Appl. Therm. Eng.
,
89
, pp.
280
290
.
4.
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
.
5.
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
.
6.
Ghenai
,
C.
,
2015
, “
Combustion of Syngas Fuel in Gas Turbine Can Combustor
,”
Adv. Mech. Eng.
,
2
, pp.
342
357
.
7.
International Gas Union
,
2011
, “
Guidebook to Gas Interchangeability and Gas Quality
,” Oslo, Norway, Technical Report.
8.
Igoe
,
M.
, and
Stocker
,
A.
,
2013
, “
Extended Fuels Capability of Siemens' SGT-400 DLE Combustion System
,” IDGTE symposium 2013, Milton Keynes, UK, Technical Report.
9.
Lefebvre
,
A. H.
, and
Ballal
,
D. R.
,
2010
,
Gas Turbine Combustion: Alternative Fuels and Emissions
,
3rd ed.
,
Taylor & Francis
, Boca Raton, FL, pp. 537.
10.
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
.
11.
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
.
12.
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
.
13.
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
.
14.
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
.
15.
Williams
,
F. A.
,
1985
,
Combustion Theory: The Fundamental Theory of Chemically Reacting Flow Systems
,
2nd ed.
,
Addison/Wesley Pub.Co.
, Boston, MA.
16.
Borghi
,
R.
,
1988
, “
Turbulent Combustion Modeling
,”
Prog. Energy Comb. Sci.
,
14
(
4
), pp.
245
292
.
17.
Glassman
,
I.
,
Yetter
,
R. A.
, and
Glumac
,
N.
,
2014
,
Combustion
,
Academic Press Inc.
, Cambridge, UK.
18.
Meneveau
,
C.
, and
Poinsot
,
T.
,
1991
, “
Stretching and Quenching of Flamelets in Premixed Turbulent Combustion
,”
Combust. Flame
,
86
(
4
), pp.
311
332
.
You do not currently have access to this content.