1. The loss of energy or pressure in a fluid system caused by the resistance created by friction between the fluid and the pipe walls or between fluid layers
The friction loss in the pipeline increased significantly after years of corrosion buildup.
A perda por fricção na tubulação aumentou significativamente após anos de acúmulo de corrosão.
2. In mechanical systems, the energy dissipated as heat due to the rubbing or sliding of surfaces in contact
Engineers must account for friction loss when calculating the efficiency of conveyor belts.
Os engenheiros devem levar em conta a perda por fricção ao calcular a eficiência das correias transportadoras.