Non-road fuel consumption and pollutant emissions ... - BAFU - CH

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Non-road fuel consumption and pollutant emissions FOEN 2008 108 Fig. 53 > Comparison of inventories and operating hours Comparison between the new non-road inventories and operating hours (right-hand column) and the figures used in Report 49 (left-hand column). Reference year, 2005. Inventories Operating hours (sum) 1,000,000 800,000 600,000 400,000 200,000 0 million hrs p.a. 70 60 50 40 30 20 10 0 Construction machinery Industrial machinery Agricultural machinery Forestry machinery Garden-care/hobby appliances Marine machinery Railway machinery Military machinery Construction machinery Industrial machinery Agricultural machinery Forestry machinery Garden-care/hobby appliances Marine machinery Railway machinery Military machinery SAEFL Report 49 New non-road inventory Petrol (4-stroke) Gas Diesel Specific operating hours Ratio between figures of new non-road report and Report 49 (Report 49 = 1.0) hrs p.a. 700 600 500 400 300 200 100 0 3.0 2.5 2.0 1.5 1.0 0.5 0.0 Construction machinery Industrial machinery Agricultural machinery Forestry machinery Garden-care/hobby appliances Marine machinery Railway machinery Military machinery Construction machinery Industrial machinery Agricultural machinery Forestry machinery Garden-care/hobby appliances Marine machinery Railway machinery Military machinery SAEFL Report 49 New non-road inventory Inventory Operating hours (Sum) Top: the colour coding indicates the data source, while the shading indicates the engine type. Bottom right: at 1.0, the new non-road inventories/operating hours are identical to those in Report 49, otherwise they are higher or lower than in the latter.
9 > Supplementary observations 109 9.3.4 Fuel consumption With respect to fuel consumption there are considerable differences between the new calculations and the forecast in Report 49 for 2005 in the construction, industrial, agricultural, forestry and garden-care/hobby categories. In the new calculation the fuel consumption of construction machinery is significantly lower than in Report 49. The reason for this is that the number of construction machines included in the new inventory is lower. But the difference in fuel consumption is not as pronounced as the difference in the inventories: the average engine power of construction machines included in the new non-road inventory (48 kW) is considerably higher than that in the inventory in Report 49 (estimated at 26 kW in 2005). In this category, the difference in fuel consumption between the new and the previous inventory is primarily attributable to snow groomers, which have a very high engine power as well as a high level of operating hours. However, compared with the differences in the inventory and operating hours, this deviation is fairly low. This is attributable to the low load factors for forklifts, which have been listed as a separate machine sub-segment in the new inventory. The average load factor of all industrial machinery is reduced by more than half compared with the assumptions made in Report 49. The differences in these two categories are attributable to the inventories and operating hours. With agricultural machinery the difference in fuel consumption is less pronounced than in the inventory and operating hours (new figures: operating hours reduced by approximately 50%, but fuel consumption only 25% lower). In the new inventory, a consumption adjustment has been made at low load factors (CF 1 ), i.e. tractors which have a low load factor of 0.25 (according to FAT 1998) have an approximately 30% higher specific consumption as a result. In addition, the average engine rated power of tractors in 2005 is approximately 50% higher than was anticipated for that year in Report 49 (59 versus 40 kW). In the new calculation, railway vehicles have been allocated a lower load factor that corresponds to the engine load during shunting operations. The fuel consumption thus more or less corresponds to the levels anticipated in Report 49, even though significantly higher operating hours have been assumed. The lower level of consumption in this category is partly attributable to the lower specific operating hours of the appliances, but also to the assumption that the average engine power of the appliances is lower than was assumed in Report 49. In addition, lower consumption factors were assumed here in view of the lower level of hydrocarbon emissions. Construction machinery Industrial machinery Agricultural and forestry machinery Railway machinery Garden-care/hobby appliances
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Environmental studies > Air 28 08 >
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Impressum Issued by Federal Office
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Non-road fuel consumption and pollu
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Foreword 7 > Foreword It is not onl
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Summary 9 Calculation methodology E
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Summary 11 Fig. 1 > Non-road pollut
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Summary 13 Comparison with road tra
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2 > Objectives 15 2 > Objectives Th
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4 > Methodology 17 4 > Methodology
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4 > Methodology 19 The inventories
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4 > Methodology 21 4.2.5 Dependency
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4 > Methodology 23 4.3 Emission fun
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4 > Methodology 25 With respect to
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4 > Methodology 27 not been explici
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4 > Methodology 29 With respect to
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4 > Methodology 31 Fig. 8 > Emissio
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4 > Methodology 33 Fig. 9 > Derivat
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Appendix 159 Pollutant Machine type
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Appendix 161 A14-7 Railway machiner
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Appendix 163 A15 Workgroups and the
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Index 165 > Index Definitions Emiss
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Index 167 Fig. 24 Forestry machiner
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Index 169 Tab. 26 Emission factors
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Index 171 SBB 2006: Statistisches V
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Non-road fuel consumption and pollutant emissions ... - BAFU - CH

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