A NUMERICAL INVESTIGATION ON TEMPERATURE UNIFORMITY FACTOR AND THERMAL NOx CONCENTRATION IN 1.15MW HYDROGEN COMBUSTOR

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2023 Vol.28, Issue 4 Preview Page Next Page

A NUMERICAL INVESTIGATION ON TEMPERATURE UNIFORMITY FACTOR AND THERMAL NOx CONCENTRATION IN 1.15MW HYDROGEN COMBUSTOR 1.15 MW 급 수소 전소 연소기의 온도 균일성 및 NOx 농도에 대한 수치 해석적 연구: 따망 사전,¹ 박희성*²
S. Tamang¹ and H. Park*²; ¹창원대학교 스마트제조융합협동과정
²창원대학교 기계공학부

¹Dept. of Smart Manufacturing Engineering, Changwon Natl. Univ.
²Dept. of Mechanical Engineering, Changwon Natl. Univ.

31 December 2023. pp. 67-75

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Abstract

In the gas turbine industry, minimizing fossil fuel consumption and mitigating carbon emissions are paramount objectives. With the pursuit of alternative energy sources, hydrogen fuel emerges as a potential solution. Nonetheless, there are still several unresolved questions concerning the safe operation of hydrogen fuels. This study employs numerical simulations to examine the combustion characteristics and thermal emissions of hydrogen gas, focusing on the effects of varying equivalence ratios in a micro mixer combustor. This numerical study investigated the combustion characteristics and thermal emissions of hydrogen fuel, varying the equivalence ratio in a micro mixer combustor. The findings revealed that the primary recirculation zone was most pronounced when the simulation operated at all the equivalence ratios. The combustion characteristics demonstrated that stable combustion with elevated temperatures was achieved at equivalence ratios ranging from 0.7 to 1.0. Moreover, the area-averaged outlet temperature rises as the equivalence ratio increases up to 1.2. Nevertheless, the highest pattern factor was observed at an equivalence ratio of 1.0. Furthermore, at an equivalence ratio of 0.7, the NOx emission value is computed at 88.84ppm with 15% oxygen by volume. This study indicates that stable combustion of hydrogen fuel in the micro mixer combustor not only enhances the uniformity of temperature distribution but also mitigates the thermal NOx emission through the variation of equivalence ratios.

Keywords

가스터빈(Gas turbine)

마이크로 믹서 연소기(Micro mixer combustor)

수소(Hydrogen)

연소(Combustion)

NOx 배출(NOx emission)

수치해석(Numerical simulation)

References

1997, Ordin, P.M., Safety Standard for Hydrogen and Hydrogen Systems Guidelines for Hydrogen System Design, Materials Selection, Operations, Storage and Transportation.
2008, Burbano, H.J., Amell, A.A. and García, J.M., "Effects of hydrogen addition to methane on the flame structure and CO emissions in atmospheric burners," International Journal of Hydrogen Energy, 33(13), pp.3410-3415. 10.1016/j.ijhydene.2008.04.020
2010, Mardani, A. and Tabejamaat, S., "Effect of hydrogen on hydrogen-methane turbulent non-premixed flame under MILD condition," International Journal of Hydrogen Energy, 35(20), pp.11324-11331. 10.1016/j.ijhydene.2010.06.064
2021, Benaissa, S., Adouane, B., Ali, S.M. and Mohammad, A., "Effect of hydrogen addition on the combustion characteristics of premixed biogas/hydrogen-air mixtures," International Journal of Hydrogen Energy, 46(35), pp.18661-18677. 10.1016/j.ijhydene.2021.02.225
2022, Sun, Y., Zhang, Y., Huang, M., Li, Q., Wang, W., Zhao, D., Cheng, S., Deng, H., Du, J., Song, Y. and Li, H., "Effect of hydrogen addition on the combustion and emission characteristics of methane under gas turbine relevant operating condition," Fuel, 324, p.124707. 10.1016/j.fuel.2022.124707
2020, Du Toit, M., Engelbrecht, N., Oelofse, S.P. and Bessarabov, D., "Performance evaluation and emissions reduction of a micro gas turbine via the co-combustion of H2/CH4/CO2 fuel blends," Sustainable Energy Technologies and Assessments, 39, p.100718. 10.1016/j.seta.2020.100718
2023, Tamang, S. and Park, H., "Numerical investigation of combustion characteristics for hydrogen mixed fuel in a can-type model of the gas turbine combustor," International Journal of Hydrogen Energy, 48(30), pp.11493-11512. 10.1016/j.ijhydene.2022.05.273
2018, Tekin, N., Ashikaga, M., Horikawa, A. and Funke, H., "Enhancement of fuel flexibility of industrial gas turbines by development of innovative hydrogen combustion systems," Gas Energy, 2, pp.1-6.
1999, Cox, L., "Nitrogen oxides (NOx) why and how they are controlled," Diane Publishing.
2017, Ayed, A.H., Kusterer, K., Funke, H.W., Keinz, J. and Bohn, D., "CFD based exploration of the dry-low-NOx hydrogen micromix combustion technology at increased energy densities," Propulsion and Power Research, 6(1), pp.15-24. 10.1016/j.jppr.2017.01.005
2023, Tamang, S. and Park, H., "An investigation on the thermal emission of hydrogen enrichment fuel in a gas turbine combustor," International Journal of Hydrogen Energy, 48(100), pp.40071-40087. 10.1016/j.ijhydene.2023.07.144
2022, Yang, Y., Liu, A., Wang, X., Xi, L. and Zeng, W., "Influence of structure on the combustion characteristics of a small aero-gas turbine engine combustor," Fuel, 321, p.124018. 10.1016/j.fuel.2022.124018
2022, Ni, S. and Zhao, D., "NOx emission reduction in ammonia-powered micro-combustors by partially inserting porous medium under fuel-rich condition," Chemical Engineering Journal, 434, p.134680. 10.1016/j.cej.2022.134680
2020, Hosseini, A.A., Ghodrat, M., Moghiman, M. and Pourhoseini, S.H., "Numerical study of inlet air swirl intensity effect of a Methane-Air Diffusion Flame on its combustion characteristics," Case Studies in Thermal Engineering, 18, p.100610. 10.1016/j.csite.2020.100610
2023, Kwon, H., Ligrani, P.M., Vanga, S.R. and Park, H., "Comparisons of cooling performance and flow characteristics of a combustor liner plate with compound angle and simple angle effusion holes," International Journal of Thermal Sciences, 185, p.107984. 10.1016/j.ijthermalsci.2022.107984
2014, Syred, N., Giles, A., Lewis, J., Abdulsada, M., Medina, A.V., Marsh, R., Bowen, P.J. and Griffiths, A.J., "Effect of inlet and outlet configurations on blow-off and flashback with premixed combustion for methane and a high hydrogen content fuel in a generic swirl burner," Applied Energy, 116, pp.288-296. 10.1016/j.apenergy.2013.11.071
2011, Turns, S.R., "An Introduction to combustion concept and applications," ISBN: 0073380199, McGraw Hill 3rd Edition.
2007, Versteeg, H.K. and Malalasekera, W., "An Introduction to computational Fluid Dynamics," ISBN: 0131274988, Pearson, 2 Edition.
2017, Zhang, K., Ghobadian, A. and Nouri, J.M., "Comparative study of non premixed and partially premixed combustor," Applied Thermal Engineering, 110, pp.910-920. 10.1016/j.applthermaleng.2016.08.223
2013, Yuri, M., Masada, J., Tsukagoshi, K., Ito, E. and Hada, S., "Development of 1600 C-class high-efficiency gas turbine for power generation applying J-Type technology," Mitsubishi Heavy Ind. Tech. Rev, 50(3), pp.1-10.
2010, Lefebvre, A.H. and Ballal, D.R., "Gas turbine combustion: alternative fuels and emissions," CRC press.
2015, Krieger, G.C., Campos, A.P.V., Takehara, M.D.B., Cunha, F.A. and Veras, C.A.G., "Numerical simulation of oxy-fuel combustion for gas turbine applications," Applied Thermal Engineering, 78(9), pp.471-781.10.1016/j.applthermaleng.2015.01.001
1997, Vatcha, S.R., "Low-emission gas turbines using catalytic combustion. Energy conversion and management," 38(10-13), pp.1327-1334. 10.1016/S0196-8904(96)00162-8

Information

Publisher :Korean Society for Computational Fluids Engineering
Publisher(Ko) :한국전산유체공학회
Journal Title :Journal of Computational Fluids Engineering
Journal Title(Ko) :한국전산유체공학회지
Volume : 28
No :4
Pages :67-75

[1] 1997, Ordin, P.M., Safety Standard for Hydrogen and Hydrogen Systems Guidelines for Hydrogen System Design, Materials Selection, Operations, Storage and Transportation.

[2] 2008, Burbano, H.J., Amell, A.A. and García, J.M., "Effects of hydrogen addition to methane on the flame structure and CO emissions in atmospheric burners," International Journal of Hydrogen Energy, 33(13), pp.3410-3415. 10.1016/j.ijhydene.2008.04.020

[3] 2010, Mardani, A. and Tabejamaat, S., "Effect of hydrogen on hydrogen-methane turbulent non-premixed flame under MILD condition," International Journal of Hydrogen Energy, 35(20), pp.11324-11331. 10.1016/j.ijhydene.2010.06.064

[4] 2021, Benaissa, S., Adouane, B., Ali, S.M. and Mohammad, A., "Effect of hydrogen addition on the combustion characteristics of premixed biogas/hydrogen-air mixtures," International Journal of Hydrogen Energy, 46(35), pp.18661-18677. 10.1016/j.ijhydene.2021.02.225

[5] 2022, Sun, Y., Zhang, Y., Huang, M., Li, Q., Wang, W., Zhao, D., Cheng, S., Deng, H., Du, J., Song, Y. and Li, H., "Effect of hydrogen addition on the combustion and emission characteristics of methane under gas turbine relevant operating condition," Fuel, 324, p.124707. 10.1016/j.fuel.2022.124707

[6] 2020, Du Toit, M., Engelbrecht, N., Oelofse, S.P. and Bessarabov, D., "Performance evaluation and emissions reduction of a micro gas turbine via the co-combustion of H2/CH4/CO2 fuel blends," Sustainable Energy Technologies and Assessments, 39, p.100718. 10.1016/j.seta.2020.100718

[7] 2023, Tamang, S. and Park, H., "Numerical investigation of combustion characteristics for hydrogen mixed fuel in a can-type model of the gas turbine combustor," International Journal of Hydrogen Energy, 48(30), pp.11493-11512. 10.1016/j.ijhydene.2022.05.273

[8] 2018, Tekin, N., Ashikaga, M., Horikawa, A. and Funke, H., "Enhancement of fuel flexibility of industrial gas turbines by development of innovative hydrogen combustion systems," Gas Energy, 2, pp.1-6.

[9] 1999, Cox, L., "Nitrogen oxides (NOx) why and how they are controlled," Diane Publishing.

[10] 2017, Ayed, A.H., Kusterer, K., Funke, H.W., Keinz, J. and Bohn, D., "CFD based exploration of the dry-low-NOx hydrogen micromix combustion technology at increased energy densities," Propulsion and Power Research, 6(1), pp.15-24. 10.1016/j.jppr.2017.01.005

[11] 2023, Tamang, S. and Park, H., "An investigation on the thermal emission of hydrogen enrichment fuel in a gas turbine combustor," International Journal of Hydrogen Energy, 48(100), pp.40071-40087. 10.1016/j.ijhydene.2023.07.144

[12] 2022, Yang, Y., Liu, A., Wang, X., Xi, L. and Zeng, W., "Influence of structure on the combustion characteristics of a small aero-gas turbine engine combustor," Fuel, 321, p.124018. 10.1016/j.fuel.2022.124018

[13] 2022, Ni, S. and Zhao, D., "NOx emission reduction in ammonia-powered micro-combustors by partially inserting porous medium under fuel-rich condition," Chemical Engineering Journal, 434, p.134680. 10.1016/j.cej.2022.134680

[14] 2020, Hosseini, A.A., Ghodrat, M., Moghiman, M. and Pourhoseini, S.H., "Numerical study of inlet air swirl intensity effect of a Methane-Air Diffusion Flame on its combustion characteristics," Case Studies in Thermal Engineering, 18, p.100610. 10.1016/j.csite.2020.100610

[15] 2023, Kwon, H., Ligrani, P.M., Vanga, S.R. and Park, H., "Comparisons of cooling performance and flow characteristics of a combustor liner plate with compound angle and simple angle effusion holes," International Journal of Thermal Sciences, 185, p.107984. 10.1016/j.ijthermalsci.2022.107984

[16] 2014, Syred, N., Giles, A., Lewis, J., Abdulsada, M., Medina, A.V., Marsh, R., Bowen, P.J. and Griffiths, A.J., "Effect of inlet and outlet configurations on blow-off and flashback with premixed combustion for methane and a high hydrogen content fuel in a generic swirl burner," Applied Energy, 116, pp.288-296. 10.1016/j.apenergy.2013.11.071

[17] 2011, Turns, S.R., "An Introduction to combustion concept and applications," ISBN: 0073380199, McGraw Hill 3rd Edition.

[18] 2007, Versteeg, H.K. and Malalasekera, W., "An Introduction to computational Fluid Dynamics," ISBN: 0131274988, Pearson, 2 Edition.

[19] 2017, Zhang, K., Ghobadian, A. and Nouri, J.M., "Comparative study of non premixed and partially premixed combustor," Applied Thermal Engineering, 110, pp.910-920. 10.1016/j.applthermaleng.2016.08.223

[20] 2013, Yuri, M., Masada, J., Tsukagoshi, K., Ito, E. and Hada, S., "Development of 1600 C-class high-efficiency gas turbine for power generation applying J-Type technology," Mitsubishi Heavy Ind. Tech. Rev, 50(3), pp.1-10.

[21] 2010, Lefebvre, A.H. and Ballal, D.R., "Gas turbine combustion: alternative fuels and emissions," CRC press.

[22] 2015, Krieger, G.C., Campos, A.P.V., Takehara, M.D.B., Cunha, F.A. and Veras, C.A.G., "Numerical simulation of oxy-fuel combustion for gas turbine applications," Applied Thermal Engineering, 78(9), pp.471-781.10.1016/j.applthermaleng.2015.01.001

[23] 1997, Vatcha, S.R., "Low-emission gas turbines using catalytic combustion. Energy conversion and management," 38(10-13), pp.1327-1334. 10.1016/S0196-8904(96)00162-8

Journal of Computational Fluids Engineering ISSN:1598-6071(Print) 3022-6252(Online) 한국전산유체공학회지

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