THERMAL SCIENCE

International Scientific Journal

THERMAL CALCULATIONS AND NOX EMISSION ANALYSIS OF A MICRO GAS TURBINE SYSTEM WITHOUT A RECUPERATOR

ABSTRACT
A thermal calculation based on a table of thermal properties of gas was carried out for a micro gas turbine system without a recuperator. The performance parameters of the micro gas turbine system were obtained. The results of the thermal calculations were verified using ASPEN PLUS, and it shows that the thermal calculations fit well with the ASPEN simulation results. Based on this thermal calculation method, the variation of the performance parameters of the micro gas turbine system under different pressure and temperature ratios was analyzed. The results show that there is no optimum pressure ratio within the general design parameters of micro gas turbines, which leads to extreme values of thermal efficiency. The NOx generation in the combustion chamber of the micro gas turbine based on the Zeldovich mechanism was modeled and analyzed by coupling the 1-D thermal calculation model with the NOx emission model. The relationship between NOx generation rate, molar fuel factor, the characteristic pressure, and the characteristic temperature was obtained. The results of the analysis show that, in terms of controlling NOx emissions from a gas turbine, the use of an increased pressure ratio has a significant advantage over an increased temperature ratio to improve the thermal efficiency of the micro gas turbine.
KEYWORDS
PAPER SUBMITTED: 2021-06-01
PAPER REVISED: 2021-09-09
PAPER ACCEPTED: 2021-09-28
PUBLISHED ONLINE: 2021-12-04
DOI REFERENCE: https://doi.org/10.2298/TSCI210601336W
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2022, VOLUME 26, ISSUE Issue 5, PAGES [3817 - 3829]
REFERENCES
  1. Alanne, K., Saari, A., Distributed Energy Generation And Sustainable Development, Renew. Sustain. Energy Rev., 10 (2006), 6, pp. 539-558
  2. Gaston, B., et al., The Biology Of Nitrogen Oxides In The Airways, Am. J. Respir. Crit. Care Med., 149 (1994), 2 I, pp. 538-551
  3. Lee, J.J., et al., Performance Test And Componet Characteristics Evaluation Of A Micro Gas Turbine, J. Mech. Sci. Technol., 21 (2007), pp. 141-152
  4. Kim, M.J., et al., The Effects Of Internal Leakage On The Performance Of A Micro Gas Turbine, Appl. Energy, 212 (2018), November 2017, pp. 175-184
  5. Zanger, J., et al., Experimental Investigations Of Pressure Losses On The Performance Of A Micro Gas Turbine System, Proc. ASME Turbo Expo, 3 (2010), pp. 437-448
  6. Sarkar, J., Bhattacharyya, S., Thermodynamic Modelling Of An Integrated Solid Oxide Fuel Cell And Micro Gas Turbine System For Desalination Purposes, Int. J. ENERGY Res., 33 (2012), 4, pp. 23-40
  7. Sarkar, J., Bhattacharyya, S., Performance Characteristics And Modelling Of A Micro Gas Turbine For Their Integration With Thermally Activated Cooling Technologies, Int. J. ENERGY Res., 33 (2012), 4, pp. 23-40
  8. Nikpey Somehsaraei, H., et al., Performance Analysis Of A Biogas-Fueled Micro Gas Turbine Using A Validated Thermodynamic Model, Appl. Therm. Eng., 66 (2014), 1-2, pp. 181-190
  9. Pullen, K.R., The Design and Development of a Small Gas Turbine and High Speed Generator, Ph. D. thesis, 1991
  10. Benini, E., Giacometti, S., Design, Manufacturing And Operation Of A Small Turbojet-Engine For Research Purposes, Appl. Energy, 84 (2007), 11, pp. 1102-1116
  11. Okafor, E.C., et al., Towards The Development Of An Efficient Low-NOx Ammonia Combustor For A Micro Gas Turbine, Proc. Combust. Inst., 37 (2019), 4, pp. 4597-4606
  12. Okafor, E.C., et al., Control Of NOx And Other Emissions In Micro Gas Turbine Combustors Fuelled With Mixtures Of Methane And Ammonia, Combust. Flame, 211 (2020), pp. 406-416
  13. Kurata, O., et al., Performances And Emission Characteristics Of NH3-Air And NH3-CH4-Air Combustion Gas-Turbine Power Generations, Proc. Combust. Inst., 36 (2017), 3, pp. 3351-3359
  14. Rabou, L.P.L.M., et al., Micro Gas Turbine Operation With Biomass Producer Gas And Mixtures Of Biomass Producer Gas And Natural Gas, Energy and Fuels, 22 (2008), 3, pp. 1944-1948
  15. Liu, A., et al., Experimental Study Of Biogas Combustion And Emissions For A Micro Gas Turbine, Fuel, 267 (2020), February, pp. 117312
  16. Seljak, T., Katrašnik, T., Emission Reduction Through Highly Oxygenated Viscous Biofuels: Use Of Glycerol In A Micro Gas Turbine, Energy, 169 (2019), pp. 1000-1011
  17. Biagioli, F., Güthe, F., Effect Of Pressure And Fuel-Air Unmixedness On NOx Emissions From Industrial Gas Turbine Burners, Combust. Flame, 151 (2007), 1-2, pp. 274-288
  18. Furuhata, T., et al., Development Of Can-Type Low NOx Combustor For Micro Gas Turbine (Fundamental Characteristics In A Primary Combustion Zone With Upward Swirl), Fuel, 86 (2007), 15, pp. 2463-2474
  19. Liu, C.R., Shih, H.Y., Model Analysis Of Syngas Combustion And Emissions For A Micro Gas Turbine, J. Eng. Gas Turbines Power, 137 (2015), 6, pp. 1-10
  20. Al-attab, K.A., Zainal, Z.A., Micro Gas Turbine Running On Naturally Aspirated Syngas: An Experimental Investigation, Renew. Energy, 119 (2018), pp. 210-216
  21. Kun-Balog, A., Sztankó, K., Reduction Of Pollutant Emissions From A Rapeseed Oil Fired Micro Gas Turbine Burner, Fuel Process. Technol., 134 (2015), x, pp. 352-359
  22. Chiariello, F., et al., Gaseous And Particulate Emissions Of A Micro Gas Turbine Fuelled By Straight Vegetable Oil-Kerosene Blends, Exp. Therm. Fluid Sci., 56 (2014), pp. 16-22
  23. Sanjay M. Correa, A Review Of NOx Formation Under Gas-Turbine Combustion Conditions, Combust. Sci. Technol., 87 (1992), October 2012, pp. 329-362
  24. Wu, Z., Gas Thermal Properties Table, China Science Publishing Media Ltd., Beijing, 1959
  25. Harvey, S., Kane, N., Analysis Of A Reheat Gas Turbine Cycle With Chemical Recuperation Using ASPEN, Energy Convers. Manag., 38 (1997), 15-17, pp. 1671-1679
  26. Zeldovich, Y.B., The Oxidation Of Nitrogen In Combustion Explosions, Acta Physicochim. U.S.S.R., 21 (1946), pp. 577-628
  27. Cen, K., et al., Advanced Combustion, Zhejiang University press, Hangzhou, China, 2002
  28. Heitor, M. V., Whitelaw, J.H., Velocity, Temperature, And Species Characteristics Of The Flow In A Gas-Turbine Combustor, Combust. Flame, 64 (1986), 1, pp. 1-32

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence