Skip to main content
SpringerLink
Log in

The effect of using passive hybrid muffler on a small generator set noise fuelled by natural gas

  • Mechanization
  • Published:
Russian Agricultural Sciences Aims and scope

Abstract

A detailed experimental study has been conducted to evaluate the effect of a hybrid muffler (HM) installation on sound emission of a small generator set fuelled by natural gas, which was covered by an acoustic enclosure. Specifications of a reactive muffler were calculated according to recommendation of ASHRAE 2.6 technical committee and based on an appropriate muffler was selected. The selected muffler was added to the muffler installed by manufacturer on generator (GM) and formed hybrid muffler (HM). The sound of generator set was measured for GM and HM setups on four sides of the generator at five different loading conditions (0, 25, 50, 75 and 100% load) using a sound level meter. The results showed that application of HM could reduce the sound of generator at firing frequency (31.5 Hz) and frequencies greater than 1000 Hz, with the maximum values of 11.7 and 26 dB, respectively. The overall A-weighted generator sound was in the range of 73.2–85.8 dB (A) at all the loading conditions and sides by using HM. The acoustical performance of HM on the side with the maximum generator sound (side 1) increased from 5.1 dB (A) at no load to 10.61 dB (A) at full load conditions. Therefore, the HM usage could be recommended as a useful approach to attenuate the generator sound.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Xin, Q., Diesel Engine System Design, Elsevier, 2011.

    Book  Google Scholar 

  2. Irwin, J.D. and Graf, E.R., Industrial Noise and Vibration Control, London: U.K. Prentice-Hall, Inc, 1979, 1st ed.

    Google Scholar 

  3. Crocker, M.J., Handbook of Noise and Vibration Control, John Wiley & Sons, 2007.

    Book  Google Scholar 

  4. NIOSH, Criteria for a Recommended Standard Occupational Noise Exposure Revised Criteria, U.S. Department of Health and Human Services, Washington D.C., 1998, publication no. 98–126.

    Google Scholar 

  5. Hassan-Beygi, S.R., Ghobadian, B., Amiri Chayjan, R., and Kianmehr, M.H., Prediction of a power tiller sound pressure levels using a back propagation algorithm, J. Agr. Sci. Technol., 2009, vol. 11, pp. 147–160.

    Google Scholar 

  6. Pal, S., Golan, T.S., Kumar, V., Jain, V., Ramdas, N., and Sharma, O.P., Design of a muffler & effect of resonator length for 3 cylinder SI engine, IOSR J. Mech. Civil Eng., 2014, vol. 11, no. 3, pp. 85–91.

    Article  Google Scholar 

  7. Shah, S., Kuppili, S., Hatti, K., and Thombare, D., A practical approach towards muffler design, development and prototype validation, SAE Tech. Paper, 2010-32-0021.

    Book  Google Scholar 

  8. Chavan, N. and Wadkar, D.S., Design and performance measurement of compressor exhaust silencer by CFD, Int. J. Sci. Res., 2013.

    Google Scholar 

  9. Rahman, M., Sharmin, T., Hassan, A.F.M.E., and Al Nur, M., Design and construction of a muffler for engine exhaust noise reduction, Proceedings of the International Conference on Mechanical Engineering ICME, 2005, pp. 28–30.

    Google Scholar 

  10. Snyder, S.D., Active Noise Control Primer, Springer: Berlin, 2000.

    Book  Google Scholar 

  11. Sun, H., An, F., Wu, M., and Yang, J., Experiments on performance of active-passive hybrid mufflers, The 22nd International Congress on Sound and Vibration, Florence, 2015.

    Google Scholar 

  12. Zakhmi, S., Study of noise generated by single cylinder two stroke petrol engine, A thesis submitted in partial fulfillment of the requirement for the award of degree of master of engineering in CAD/CAM & Robotics, THAPAR University, 2009.

    Google Scholar 

  13. Munjal, M.L., Acoustics of Ducts and Mufflers, New York: John Wiley & Sons, 1987.

    Google Scholar 

  14. Biswas, S., Combination Muffler is More Effective than Reactive Muffler even in Small Size, Jharakhand: Tata Motors Ltd. Jamshedpur, 2012.

    Google Scholar 

  15. Yang, T.C. and Tsai, S.S., Design optimization of an industrial muffler by Taguchi method, Adv. Mater. Res., 2014, vol. 871, pp. 277–282.

    Article  Google Scholar 

  16. Ghorbani, Z., Hassan-Beygi, S.R., Ghobadian, B., and Malati, M., Evaluation of different mufflers installation and enclosure on portable generator noise fuelled with natural gas, Proceedings of the 9th International Conference on Internal Combustion Engines & Oil, Tehran, 2016.

    Google Scholar 

  17. Bell, L.H., Industrial Noise Control, Marcel Dekker, Inc., 1994.

    Google Scholar 

  18. Bilawchuk, S. and Fyfe, K.R., Comparison and implementation of the various numerical methods used for calculating transmission loss in silencer systems, Appl. Acoust., 2003, vol. 64, no. 9, pp. 903–916.

    Article  Google Scholar 

  19. Oppenheim, A.V. and Schafer, R.W., Discrete-Time Signal Processing, Pearson Higher Education, 2013.

    Google Scholar 

  20. SAE J1074, Engine Sound Level Measurement Procedure, 2000.

    Google Scholar 

  21. Tandon, N., Nakra, B.C., Ubhe, D.R., and Killa, N.K., Noise control of engine driven portable generator set, Appl. Acoust., 1998, vol. 55, no. 4, pp. 307–328.

    Article  Google Scholar 

  22. Ghobadian, B., A parametric study on diesel engine noise, Unpublished PhD Dissertation, Roorkee, India: Roorkee University, 1994.

    Google Scholar 

  23. Al-Ameen, E.S.M., Experimental test for noise attenuation in gasoline engine with different types of mufflers, J. Eng. Dev., 2013, vol. 16, no. 4, pp. 390–398.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Agrotechnology, College of Abouraihan, University of Tehran, Tehran, Iran

    Z. Ghorbani & S. R. Hassan-Beygi

  2. Department of Mechanics of Agricultural Machinery, Tarbiat Modares University, Tehran, Iran

    B. Ghobadian

Authors
  1. Z. Ghorbani
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. S. R. Hassan-Beygi
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. B. Ghobadian
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to S. R. Hassan-Beygi.

Additional information

The article is published in the original.

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Ghorbani, Z., Hassan-Beygi, S.R. & Ghobadian, B. The effect of using passive hybrid muffler on a small generator set noise fuelled by natural gas. Russ. Agricult. Sci. 43, 75–83 (2017). https://doi.org/10.3103/S1068367417010074

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.3103/S1068367417010074

Keywords

Search

Navigation