Numerical Analysis and Demonstration Test on the Performance of a Static Mixer for mixing Biogas and Town Gas for the 5MW Biogas Turbine

5MW 바이오가스 터빈의 바이오가스와 도시가스 혼합용 정적 혼합기의 성능에 관한 수치해석 및 실증 연구

Cha, Hyoseok;Song, Soonho;Park, Jong Yeon;Kim, Young Il;Mun, Sung Young

  • Received : 2014.12.04
  • Accepted : 2015.02.23
  • Published : 2015.03.31


The purpose of this study is to verify the performance of a static mixer for mixing of biogas and town gas by numerical analysis and demonstration test. The reason for designing a static mixer is that there is a need to mix town gas with biogas when there is less production of biogas in biogas sites. Non-uniformity in the outlet section was calculated for investigating the performance of a static mixer. Non-uniformity was based on the mole fraction of methane in a mixture of biogas and town gas. Low non-uniformity means that biogas and town gas are mixed well through this static mixer. Also, pressure drop at the outlet section of a static mixer was calculated. The pressure drop is less than 0.2% in this static mixer. This static mixer is suitable for applying to a 5MW bio-gas turbine through the demonstration test in the field.


Mixing Chamber;Static Mixer;Biogas;Town Gas;Non-uniformity;Pressure Drop


  1. Poschl M., Ward S., Owende P., 2010, "Evaluation of energy efficiency of various biogas production and utilization pathways", Applied Energy, Vol. 87, No. 11, pp. 3305-3321
  2. Arthur W., Jerry M., David B., 2013, The Biogas Handbook, Woodhead Publishing, Cambridge, pp. 1-16
  3. Havukainen J., Uusitalo V., Niskanen A., Kapustina V., Horttanainen M., 2014, "Evaluation of methods for estimating energy performance of biogas production", Renewable Energy, Vol. 66, pp. 232-240
  4. Porpatham E., Ramesh A., Nagalingam B., 2008, "Investigation on the effect of concentration of methane in biogas when used as a fuel for a spark ignition engine", Fuel, Vol. 87, No. 8-9, pp. 1651-1659
  5. Makareviciene V., Sendzikiene E., Pukalskas S., Rimkus A., Vegneris R., 2013, "Performance and emission characteristics of biogas used in diesel engine operation", Energy Conversion and Management, Vol. 75, pp. 224-233
  6. Lee S., Lim G., Park C., Choi Y., Kim C., 2013, "Effect of low calorific natural gas on performance and emission characteristics of engine", Trans. Korean Soc. Mech. Eng. B, Vol. 37, No. 12, pp. 1129-1135
  7. Gupta K. K., Rehman A., Sarviya R. M., 2010, "Bio-fuels for the gas turbine: A review", Renewable and Sustainable Energy, Vol. 14, No. 9, pp. 2946-2955
  8. Somehsaraei H. N., Majoumerd M. M., Breuhaus P., Assadi M., 2014, "Performance analysis of a biogas-fueled micro gas turbine using a validated thermodynamic model", Applied Thermal Engineering, Vol. 66, No. 1-2, pp. 181-190
  9. Nikpey H., Assadi M., Breuhaus P., Morkved P. T., 2014, "Experimental evaluation and ANN modeling", Applied Energy, Vol. 117, pp. 30-41
  10. Thakur R. K., Vial Ch., Nigam K. D. P., Nauman E. B., Djelveh G., 2003, "Static mixers in the process industries-a review", Chemical Engineering Research and Design, Vol. 81, No. 7, pp. 787-826
  11. Meijer H. E. H., Singh M. K., Anderson P. D., 2012, "On the performance of static mixers: a quantitative comparison", Progress in Polymer Science, Vol. 37, No. 10, pp. 1333-1349
  12. Ghanem A., Lemenand T., Valle D. D., Peerhossaini H., 2014, "Static mixers: Mechanisms, applications, and characterization methods - a review", Chemical Engineering Research and Design, Vol. 92, No. 2, pp. 205-228


Supported by : 한국에너지기술평가원(KETEP)