Abstract
Biodiesel as a renewable energy has received considerable attention in recent years. It is reported to be used in its neat form or blended with petroleum-based diesel, and almost without any engine modification. Given the chance of increasing use in biodiesel, however, it is required to quantify its potential emission benefits and effect on power response, especially for those public-serviced diesel vehicles in daily operations. An on-road test for waste collection vehicles using various blending percentage of biodiesel and petroleum-based diesel was evaluated, especially for the particulate matter (PM 10 ) emissions and the dynamometric power responses. Three waste collection vehicles were recruited and operated in their routine routes. The results indicated that the higher the biodiesel blending ratio, the more the power losses, up to 14% for B100 biodiesel. Heating value of the biodiesel blending is likely to be responsible for this drop of power. Near 68% PM 10 reduction is attained for B100 in comparison with the petroleum-based diesel (B0) during testing periods. Both of the reductions in PM 10 and power response differed from maker of diesel engine. Based on the testing results, though the biodiesel may abbreviate the environmental loading in PM 10 emissions, it is suggested that an engine tune-up and adjustment for fuel supply system be arranged prior to use of biodiesel. Additionally, to make biodiesel a viable alternative fuel for the waste collection vehicles, a long-term assessment together with weather effect is suggested to secure both operational stability and safety on-road.
Highlights
Biodiesel as a renewable energy has received considerable attention in recent years
This study evaluated the particulate matter (PM10) emissions and the dynamometric power responses using various blending ratios of biodiesel and petroleum-based diesel
Three waste collection vehicles installed with sampling device were recruited for road testing
Summary
Due to the decreasing petro-energy availability and increasing environmental concerns, many researchers have suggested that biodiesel holds promising as a green fuel for diesel engines [1,2,3,4,5]. Biodiesel has several important advantages rendering it an attractive energy supply. Biodiesel can be produced technically non-specific from either plant oils or animal fats. This advantage makes the recycling a credit to the waste edible and non-edible oils. Biodiesel can be miscible in diesel fuel and stays blended. It can be applied in its neat form or petroleum-based biodiesel-blendings to the diesel engines with little or nothing modification. Biodiesel can be produced domestically, thereby possibly reducing a country’s reliance on crude oil imports
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