Advances in Energy Research

Techno-Press (테크노프레스)
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Performance of cyclone separator for syngas production in downdraft gasifier

  • Kumara, Sunil (Centre for Energy and Resources Development, Department of Mechanical Engineering, Indian Institute of Technology (BHU)) ;
  • Shukla, S.K. (Centre for Energy and Resources Development, Department of Mechanical Engineering, Indian Institute of Technology (BHU))
  • Received : 2015.10.19
  • Accepted : 2016.08.19
  • Published : 2016.09.25
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Abstract

The excess use of conventional sources of energy by the industries and power sector result in acute shortage of energy produced by fossil fuel. To overcome this energy crisis, biomass feedstock is used to produce syngas or producer gas. For cleaning the dust particle present in the producer gas cyclone separators are largely used. In this paper we investigate the performance parameters of cyclone separator mainly efficiency and pressure drop for different feedstock. Cyclone performance has been evaluated based on experimentation and empirical approach using Leith and Licht model. The same has also been calculated by using turbulent RSM in Ansys Fluent for Wood and Coconut shell feedstock. Experimental results show that using feed stock with 10 % Calcium oxide (CaO) by weight, the efficiency of cyclone got reduced from 71.87% to 70.75% for wood feed stock, whereas in case of coconut shell, the cyclone efficiency got reduced from 78% to 73.44%. It is also seen that Leith and Licht model and Reynolds stress model (RMS) predicts very close to the particle collection efficiency evaluated by using experimental data.

Keywords

Acknowledgement

Supported by : Centre for Energy and Resources Development (CERD)

References

  1. Air Pollution Control Technology Fact Sheet, EPA-452/F-03-005, 3-4.
  2. Altmeyer, S., Mathieu, V., Jullemier, S., Contal, P., Midoux, N., Rode, S. and Leclerc, J.P. (2004), "Comparison of different models of cyclone prediction performance for various operating conditions using a general software", Chem. Eng. Pr., 43(4), 511-522. https://doi.org/10.1016/S0255-2701(03)00079-5
  3. Charisiou, N.D., Tsevrenis, G.L. and Goula, M.A. (2011), "Software development for the design of control equipment for particulate pollutants", Proceeding of the 12th International Conference on Environmental Science and Technology, Rhodes, Greece, September.
  4. Dirgo, J. and Leith, D. (1985), "Cyclone collection efficiency: comparison of experimental results with theoretical predictions", Aerosol Sci. Technol., 4(4), 401-415. https://doi.org/10.1080/02786828508959066
  5. Fassani, F.L. and Goldstein, L. (2000), "A study of the effect of high inlet solids loading on a cyclone separator pressure drop and collection efficiency", Powder Tech., 107(1-2), 60-65. https://doi.org/10.1016/S0032-5910(99)00091-1
  6. Hasler, P. and Nussbaumer, Th. (1999), "Gas cleaning for IC engine applications from fixed bed biomass gasification", J. Biomass Bioenergy, 16(6), 385-295. https://doi.org/10.1016/S0961-9534(99)00018-5
  7. Hoekstra, A.J., Derksen, J.J. and Van Den Akker, H.E.A. (1999), "An experimental and numerical study of turbulent swirling flow in gas cyclones", Chem. Eng. Sci., 54(13-14), 2055-2065. https://doi.org/10.1016/S0009-2509(98)00373-X
  8. Jolius, G., Chuah, L.A., Thomas, C., Yaw, T.S. and Fakhru'l-Razi, A. (2006), Evaluation on empirical models for the prediction of cyclone efficiency.
  9. Lim, K.S., Kim, H.S. and Lee, K.W. (2004), "Comparative performances of conventional cyclones and double cyclone with and without an electric field", J. Aerosol Sci., 35, 103-116. https://doi.org/10.1016/j.jaerosci.2003.07.001
  10. Senapati, P.K., Singh, D. and Korado, B. (2014), "Some cold model studies on design and developmental aspects of a cyclone type entrained flow gasification system using blended low grade coal with dolochar wastes", Carbon, 42(21.3), 37-15.
  11. Shin, M.S., Kim, H.S., Jang, D.S., Chung, J.D. and Bohnet, M. (2005), "A numerical and experimental study on a high efficiency cyclone dust separator for high temperature and pressurized environments", Appl. Therm. Eng., 25(11-12), 1821-1835. https://doi.org/10.1016/j.applthermaleng.2004.11.002
  12. Tripathi, A. and Shukla, S.K. (2015), "Comparative studies of gasification potential of agro-waste with wood and their characterization", Adv. Energy Res., 3(3), 181-194 https://doi.org/10.12989/eri.2015.3.3.181
  13. Wang, B., Xu, D.L., Xiao, G.X., Chu, K.W. and Yu, A.B. (2003), "Numerical study of gas solid flow in cyclone separator", 3rd International conference on CFD in minerals and process industries CSIRO, Melbourne, Australia, December.
  14. Xiang, R., Park, S.H. and Lee, K.W. (2001), "Effects of cone dimension on cyclone performance", J. Aerosol Sci., 32, 54-561.
  15. Zhu, Y. and Lee, K.W. (1999), "Experimental study on small cyclones operating at high flow rates", J. Aerosol Sci., 30(10), 1303-1315. https://doi.org/10.1016/S0021-8502(99)00024-5