Istrazivanja i projektovanja za privreduJournal of Applied Engineering Science

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CNG PROPULSION SYSTEM FOR REDUCING NOISE OF EXISTING CITY BUSES


DOI: 10.5937/jaes14-10991
This is an open access article distributed under the CC BY-NC-ND 4.0 terms and conditions. 
Creative Commons License

Volume 14 article 392 pages: 377-382

Sasa Milojevic
University of Kragujevac, Faculty of Engineering, Kragujevac, Serbia

Dobrosav Grocic
Centre for engines and vehicles TehnoLab CMV d.o.o, Belgrade, Serbia

Dragic Dragojlovic
Centre for engines and vehicles TehnoLab CMV d.o.o, Belgrade, Serbia

Noise pollution due to road traffic is a major global concern because of its negative impact on the quality of life in communities everywhere. In Republic of Serbia, traffic noise has become an increasingly noticeable and serious problem in large cities like Belgrade, Novi Sad, Nis, Kragujevacand Kraljevo.To resolving the current situation, in cities where exists the intensive noise pollution from diesel vehicles, as a special contribution to reducing noise in road traffic, we were studied the replacement of the existing city busses with new propulsion system on natural gas, resulting in less noise emission. The reduction of noise emission was confirmed during parallel tests of the buses with drive on diesel and natural gas. Intensive noise measurements were conducted according to the Regulation UN ECE 51R.

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