Papers by Keyword: Engine Test

Abstract: Biodiesel, as an alternative auto fuel for conventional fossil fuel, has drawn wide attention in recent years. In this research, a two-step process for biodiesel production using waste cooking oil as feedstock was studied in a pilot plant with a treatment capacity of 3 ton/d. The results show that: the process exihibited a good conversion ratio and the biodiesel displayed suitable physical-chemical properties in comparison with diesel fuel, such as flash point of 137°C, viscosity of 4.49 mm2/s, acid value of 0.44 mg KOH/g etc. The quality of biodiesel meets the agreement with the European specification defined by EN 14214. Afterwards, the mixture of biodiesel and diesel were test in the engine with a ratio of 50/50（v/v）, 20/80（v/v）, and 0/100（v/v）. It indicates the mixed fuel has a reasonable fuel consumption rates without diesel engine modification, when the biodiesel blended with 0# diesel as fuel. The present results demonstrated that the industrial scale plant would achieve promising objective with waste cooking oils and animal fats as raw material. Also, this biodiesel-based diesel fuel could be applied in Tianjin local public transportation system that improves its sustainable development.

Abstract: This study is devoted to engine application of bio-diesel manufactured by transerification reaction with alkali process from waste cooking oil. The performance & pollutant emission of vehicle engine application are little different in the idle condition for the engine test of the garbage collecting trunk with PD (practical diesel), B20 (20% biodiesel mixture with diesel) and B100 (100% biodiesel). In the full loading condition, the pollutant degree is decreased obviously with the addition of biodiesel especially for full alternative B100 for PD. The CO emission is down 51%, the SOx emission is down 73%, the NOx is down 13%, and, the carbon participate emission is down 69% in this test. But, the decreasing motion horsepower (down 10%) and the increasing fuel consumption (up 11.3%) are the evidences that the above effect is focused on the healthy to the environment only.