Abstract
Friction and wear are responsible for approximately one-fourth of the global energy losses. According to Holmberg et al., these losses correspond to 119 EJ of the world’s total energy consumption from tribological contacts, based on the main sectors: transportation, manufacturing, power generation and residential. In this case, 20% (103 EJ) is used to overcome friction and 3% (16 EJ) is used to re-manufacture worn parts due to wear-related issues. These global energy losses have a huge impact on economic and ecological aspects. Figure 1 summarizes the impact of friction and wear on energy consumption, generated costs and CO2 emissions.
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Acknowledgements
The work is based on the PEGASUS II projects funded by German Federal Ministry for Economic Affairs and Energy (BMWi). We thank also Mr. Hösl and Mr. Rögnitz for their support on the tribological testing and characterization of the coatings.
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Dobrenizki, L., Brugnara, R.H., Schulz, E., Bagcivan, N., Tremmel, S., Wartzack, S. (2020). A New Nanostructured Coating System for Energy Efficient Engine Components (Neues nanostrukturiertes Schichtsystem für energieeffizientere Motorenelemente). In: Liebl, J. (eds) Experten-Forum Powertrain: Reibung in Antrieb und Fahrzeug 2019. Proceedings. Springer Vieweg, Wiesbaden. https://doi.org/10.1007/978-3-658-28711-5_2
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