Problem statement: Bulldozers consume a large amount of diesel fuel and consequently produce a significant quantity of CO 2 .Environmental and economic cost issues related to fuel consumption and CO 2 emission represent a substantial challenge to the mining industry.Approach: Impact of engine load conditions on fuel consumption and the subsequent CO 2 emission and cost was analyzed for Caterpillar bulldozers.Results were compared with the data on bulldozers' fuel consumption from an operating coal surface mine in the United States.Results: There is a strong linear correlation among power, fuel consumption and engine load factor.Reduction in load factor by 15% may significantly reduce the fuel consumption and the CO 2 emission.Conclusion/Recommendation: Application of appropriate bulldozer's load factor may help mine operators manage fuel consumption, cost and environmental burden.
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Vladislav Kecojević (2011) studied this question.
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