publication . Article . 2015

Analysis of power tiller noise using diesel-biodiesel fuel blends

N Keramat Siavash; Gh Najafi; S. R Hassan Beigi Bidgoli; B Ghobadian;
Open Access Persian
  • Published: 01 Sep 2015 Journal: Journal of Agricultural Machinery (issn: 2228-6829, eissn: 2423-3943, Copyright policy)
  • Publisher: Ferdowsi University of Mashhad
Abstract
Introduction: There are several sources of noise in an industrial and agriculture environment. Machines with rotating or reciprocating engines are sound-producing sources. Also, the audio signal can be analyzed to discover how well a machine operates. Diesel engines complex noise SPL and sound frequency content both strongly depend on fuel combustion, which produces the so-called combustion noise. Actually, the unpleasant sound signature of diesel engines is due to the harsh and irregular self-ignition of the fuel. Therefore, being able to extract combustion noise from the overall noise would be of prime interest. This would allow engineers to relate the sound q...
Subjects
free text keywords: Biodiesel, Noise, Power tiller, Sound pressure level, Agriculture (General), S1-972, Engineering (General). Civil engineering (General), TA1-2040
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