Towards Ammonia Free Retrofitting of Heavy-Duty Vehicles to Meet Euro VI Standards

Betsi-Argyropoulou, I. I.; Moschovi, Anastasia Maria; Polyzou, Ekaterini; Yakoumis, Iakovos

doi:10.1007/978-981-15-9529-5_18

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…The majority of commercial heavy-duty vehicles in the EU are powered by diesel engines [1] having consequently a big impact on the energy consumption and emissions produced from road transport [2]. The heavy-duty vehicles account for about 25% of transport related CO 2 emissions and 6% of the total emissions in EU [3].…”

Section: Introductionmentioning

confidence: 99%

Simulation-Based Comparative Assessment of a Multi-Speed Transmission for an E-Retrofitted Heavy-Duty Truck

et al. 2022

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Electric retrofitting (e-retrofitting) is a viable option for accelerating the renewal of heavy-duty vehicle fleets to reduce the related emissions. We introduce a simulation-based assessment of e-retrofitting strategies for heavy-duty vehicles. Our simulation tool, an electric vehicle fleet simulation toolbox, comprises three modules, namely driving cycles, vehicle dynamics, and vehicle profiles. The first allows for the creation of realistic driving cycles based on GPS data from real routes. The vehicle dynamics and vehicle profiles incorporate, e.g., the modelling of the powertrain and driving conditions. Ten realistic driving cycles were created and used for investigating and comparing three different powertrain alternatives, including the original diesel powertrain, electric with a single-speed transmission and electric with a multi-speed transmission. The vehicles were simulated in two different heavy-load scenarios. First, driving with a cargo load represented by the maximum vehicle weight and second, driving with snow ploughing. We found that the multi-speed transmission in an electric heavy-duty truck significantly improved its traction performance and gradeability. On the other hand, the effect on the electric powertrain efficiency, and thereby on the energy consumption, remained rather minor. Considering the given workload scenarios, our results advocate employing rather than omitting the gearbox in the e-retrofit truck process.

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Section: Introductionmentioning

confidence: 99%

Simulation-Based Comparative Assessment of a Multi-Speed Transmission for an E-Retrofitted Heavy-Duty Truck

et al. 2022

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“…Later, in 2005, the diesel particulate filter (DPF) technology was adopted by Euro IV legislation. In Figure 1, a typical catalytic system of heavy-duty vehicles for the reduction of pollutants emissions is presented [1,2]. The catalyzed diesel particulate filter (c-DPF) collects and oxidizes carbon to remove particulate matter (PM) by more than 90%.…”

Section: Introductionmentioning

confidence: 99%

Platinum Recovered from Automotive Heavy-Duty Diesel Engine Exhaust Systems in Hydrometallurgical Operation

Papagianni¹,

Moschovi²,

Polyzou³

et al. 2021

Metals

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The current study is focused on platinum recovery from the secondary sources of end-of-life heavy-duty diesel oxidation catalysts (DOCs) and heavy-duty catalyzed diesel particulate filters (c-DPFs) in order to reduce the supply–demand gap within the European Union. The extraction of platinum was based on a hydrometallurgical single-step low acidity leaching system (HCl-H2O2-NaCl) and a calcination step that takes place before the leaching process. The parameters of calcination and leaching process were thoroughly investigated in order to optimize recovery efficiency. The optimized results proved that a calcination step (at 800 °C for 2 h) improves the recovery efficiency by a factor of 40%. In addition, optimal Pt recovery yield was achieved after 3 h of leaching at 70 °C, with a solid-to-liquid (S/L) ratio of 70 g/100 mL (70%) and 3 M HCl-1% vol H2O2-4.5 M NaCl as leaching conditions. The optimum Pt recovery yield was 95% and 75% for DOC and c-DPF, respectively. Since the secondary feedstock investigated is highly concentrated in platinum, the pregnant solution can be used as a precursor for developing new Pt-based catalytic systems.

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Towards Ammonia Free Retrofitting of Heavy-Duty Vehicles to Meet Euro VI Standards

Cited by 2 publications

References 12 publications

Simulation-Based Comparative Assessment of a Multi-Speed Transmission for an E-Retrofitted Heavy-Duty Truck

Simulation-Based Comparative Assessment of a Multi-Speed Transmission for an E-Retrofitted Heavy-Duty Truck

Platinum Recovered from Automotive Heavy-Duty Diesel Engine Exhaust Systems in Hydrometallurgical Operation

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