Fuel savings on a heavy vehicle via aerodynamic drag reduction

Mohamed-Kassim, Zulfaa; Filippone, Antonio

doi:10.1016/j.trd.2010.02.010

Cited by 80 publications

(43 citation statements)

References 11 publications

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“…This technique can cater for the noisy responses that can be encountered in vehicle aerodynamics [23]. The metamodel can be tuned by selecting an appropriate 'closeness of fit parameter', θ, which is contained within a Gaussian weight decay function, namely 2 …”

Section: Drag Reduction Strategymentioning

confidence: 99%

“…The latter is consistent with McCallen et al [3], who found that the percentage reduction in fuel consumption is approximately half the percentage reduction in drag for speeds in the range 40 to 70 mph. Mohammed-Kassim and Filipone [2] carried out a numerical study into the fuel saving potential of dragreducing devices retrofitted to HGVs by modelling resistive forces throughout the vehicle journey based on the fuel consumption analysis of Emmelmann and Hucho [32]. This predicted a linear relationship between the percentage reduction in aerodynamic drag force and fuel consumption and that HGVs operated on long-haul (extra-urban) routes generally save twice as much fuel as in urban areas.…”

Section: Fuel Economymentioning

confidence: 99%

“…The first is a predominantly urban duty cycle with an average speed of 34 mph and the second is an extra-urban one with an average speed of 51 mph. Due to lack of data specific to ERVs, the following analysis is based on the methodology developed by Mohammed-Kassim and Filipone [2] for HGVs. However, this can easily be adjusted to ERV-specific performance data.…”

Section: Fuel Economymentioning

confidence: 99%

“…For simplicity, the latter is neglected while the percentage of the total fuel consumed in order to overcome the acceleration resistances for the two duty cycles can be estimated from the data of Mohammed-Kassim and Filipone [2]. Aerodynamic drag is modelled by D=kV 2 where k is a constant and V the vehicle speed.…”

Section: Fuel Economymentioning

confidence: 99%

“…Each of these contributes significantly to the overall aerodynamic drag and the trend for ever increasing fuel prices and more stringent environmental legislation has provided strong incentives for reducing them in order to improve fuel economy and reduce emissions. Since Heavy Goods Vehicles (HGVs) consume a disproportionate share of overall fuel consumption (in the UK for example, over 20% of the total fuel consumption is spent by HGVs which make up only 1.3% of all vehicles [2]) there has been a particular focus on reducing their fuel consumption through improved aerodynamic design [3].…”

Section: Introductionmentioning

confidence: 99%

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Aerodynamic Drag Reduction of Emergency Response Vehicles

Ar¹,

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et al. 2015

Adv Automob Eng

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This paper presents the first experimental and computational investigation into the aerodynamics of emergency response vehicles and focuses on reducing the additional drag that results from the customary practice of adding light-bars onto the vehicles' roofs. A series of wind tunnel experiments demonstrate the significant increase in drag that results from the light bars and show these can be minimized by reducing the flow separation caused by them. Simple potential improvements in the aerodynamic design of the light bars are investigated by combining Computational Fluid Dynamics (CFD) with Design of Experiments and metamodelling methods. An aerofoil-based roof design concept is shown to reduce the overall aerodynamic drag by up to 20% and an analysis of its effect on overall fuel consumption indicates that it offers a significant opportunity for improving the fuel economy and reducing emissions from emergency response vehicles. These benefits are now being realised by the UK's ambulance services.

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Section: Drag Reduction Strategymentioning

confidence: 99%

Section: Fuel Economymentioning

confidence: 99%

Section: Fuel Economymentioning

confidence: 99%

Section: Fuel Economymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Aerodynamic Drag Reduction of Emergency Response Vehicles

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Fuel economy and exhaust emissions of a diesel vehicle under real traffic conditions

Gao

Chen

Dave

et al. 2020

Energy Science & Engineering

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Traffic and vehicle simulations are often developed individually. However, vehicle performance is heavily affected by traffic conditions. Cosimulations of traffic and vehicle under real‐road situations can reflect the semi‐real‐world performance of vehicles, with traffic conditions being taken into considerations. This paper proposed an approach to combine the traffic and vehicle simulations that are realized by simulation of urban mobility (SUMO) and GT‐Suite software, respectively. In this paper, the sensitivities of the road grade and vehicle speed to the fuel economy and exhaust emissions were investigated; vehicle fuel consumption and regular exhaust emissions on a real‐road were analyzed; the effect of the traffic accident and congestions on fuel consumption and exhaust emissions were quantified. The results indicated that nitrogen oxides (NOx) and soot emission were consistent with fuel consumption rate, which was dominated by vehicle acceleration whose effect was aggravated by road grade. The fuel penalties caused by accident were in the range of 0.015‐0.023 kg depending on the severity of the accidents. The fuel consumption increased from 1.199 to 1.312 kg and 1.559 kg for 900 and 1800 vehicles/h traffic flow cases compared with 180 vehicles/h traffic flow.

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Fuel savings on a heavy vehicle via aerodynamic drag reduction

Cited by 80 publications

References 11 publications

Aerodynamic Drag Reduction of Emergency Response Vehicles

Aerodynamic Drag Reduction of Emergency Response Vehicles

Lubricant from Waste Cooking Oil

Fuel economy and exhaust emissions of a diesel vehicle under real traffic conditions

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