Impacts of biodiesel blends with organic-based manganese additive on performance and emission characteristics of a single cylinder diesel engine

Abstract

Biodiesel production from waste frying oil as a fuel can help the recycling and contributing tothe economy. Transesterification reaction is preferred, it is not because the most commontechnique, it is one of the most efficient ways for the biodiesel production. Thetransesterification parameters of waste frying oil were applied as 6:1 Methanol to oil molar ratiowith NaOH catalyst 0.4 g (w/w), 57°C reaction temperature, and 60 minutes reaction time andtransesterification yield 88.5%. In this study, the effect of biodiesel blends with the organic-based manganese additive on performance and exhaust emissions of a single-cylinder, four-stroke, direct injected diesel engine with air cooling system at 2200 1/min fixed engine speedand with four different engine loads was experimentally investigated. The engine loads are(BMEP, 0.12 MPa, 0.24 MPa, 0.36 MPa and 0.48 MPa), and at the beginning of the tests, theengine was warmed with No. 2 diesel fuel. The oil and inlet air temperatures were kept at 85±2 °C and 25 ±1 °C, respectively. The testing fuels used in the experiments were composed ofwaste frying oil biodiesel blended with the No. 2 diesel fuel volumetrically with the ratio of 20,40 and 60, respectively. The results obtained from the experimental study were compared withNo. 2 diesel fuel. The effects of blends on CO, THC, NOx and smoke were investigated byemission tests. Additionally, brake specific fuel consumption of test fuels was examined. Byvirtue of the environmental effects, biodiesel production from waste frying oil has been becomesignificant.