Abstract:
In today's technology age, especially in urban areas, one of the most important sources of environmental noise pollution is diesel engines. Due to the limited availability of petroleum-based fuels, produced in only certain regions of the world maps, high cost, and being one of the most important causes of environmental pollution, in recent years, researchers have intensively focused on the study of alternative energy sources. Today, one of the most important alternative energy sources is biodiesel obtained from various natural sources. In this study, the effect of broiler chicken and turkey biodiesel on the noise emission of diesel engines was investigated experimentally. The biodiesels were produced with special methods using broiler chicken and turkey rendering fats. Two different kinds of biodiesels were homogeneously blended into the diesel fuel at proportions of 10%, 20%, and 50%. Engine tests were carried out at full load at various engine speeds and partial loads at a constant speed of 2000 rpm. During the experiments, noise measurements of the engine were taken by hand-held noise analyser. For more detailed assessment, 1/3 octave band noise analysis between 10 and 10 kHz was performed as well. Compared with diesel fuel, results of the noise analyses showed that use of biodiesel blends produced from broiler chicken and turkey rendering fat in diesel fuel has no significantly effect on engine noise emissions. Biodiesels produced from broiler chicken and turkey fats can be used safely in terms of noise emissions as engine fuels.
