Abstract
Worldwide about 100 million terajoule is used annually to
overcome friction and that is one fifth of all energy
produced. The largest quantities of energy are used by
industry (29 %) and in transportation (27 %). Based on
our recent studies on energy use in passenger cars,
trucks and buses, we concluded that it is possible to
save as much as 17.5 % of the energy use in road
transports in the short term (5 - 9 years) by effective
implementation of new tribological solutions. This equals
to annual energy savings of 11.6 exajoules, fuel savings
of 330 billion litres and reduction in CO2 emission by
860 million tonnes. In a paper mill, 15 - 25 % of the
energy used is spent to overcome friction. The electrical
energy used by a paper machine is distributed as 32 % to
overcome friction, 36 % for the paper production and mass
transportation, and 32 % is other losses. In paper
machines, 11 % of the total energy used to overcome
friction can be saved by the implementation of new
tribological technologies. An overview of the total
energy saving potential globally by improved tribological
solutions is presented.
| Original language | English |
|---|---|
| Pages (from-to) | 181-185 |
| Journal | FME Transactions |
| Volume | 43 |
| Issue number | 3 |
| Publication status | Published - 2015 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- energy
- friction
- lubrication
- transportation
