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 to the economy. Transesterification was preferred due to most common biodiesel production method. The transesterification parameters of waste frying oil was applied as 6:1 Methanol to oil molar ratio with NaOH catalyst 0.4 g (w/w), 57°C reaction temperature, and 60 minutes reaction time and transesterification 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 speed and 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, the engine 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 used fuels were waste frying oil biodiesel by volume (B20, B40, B60) and conventional No. 2 diesel fuel (D0). The results obtained from the experimental study were compared with No. 2 diesel fuel. The effects of blends on CO, THC, NOx and smoke were investigated by emission tests. Additionally brake specific fuel consumption of test fuels were examined. By virtue of the environmental effects, biodiesel production from waste frying oil has been become significant.