ENERGY EFFICIENCIES. Maximize The Opportunity – Select the Right Lubricant ALBERTA FOREST PRODUCTS ASSOCIATION. SEPTEMBER 2012. OBJECTIVE. This presentation is to review the opportunities in reaching energy efficiencies and prolonging equipment and oil life in the forestry industry.
Maximize The Opportunity – Select the Right Lubricant
ALBERTA FOREST PRODUCTS ASSOCIATION
FORESTRY - INDUSTRY TRENDS
No Lubricant: High Friction
Thin Film (Boundary) Lubrication: Moderate Friction
Full Film (Hydrodynamic) Lubrication: Low FrictionWHY LUBRICATE?
*NRC Report published in 1986
1986 to 2012 what is the $$ amount today? Significant opportunity to reduce friction losses
Viscosity increase at low temperatures is relatively small resulting in cold temperature viscosity near original base oil.
Base Oil + VII
Multi-grade (all-season) Product
(i.e. Hydraulic MV)
Viscosity Index Improver (VII) additive expands with higher temperatures resulting in a higher viscosity at high temperatures
Viscosity cSt (LOG-LOG)
(i.e. Hydraulic AW)
Potential reduction based on shear stability (i.e. quality) of VII.
Temperature oC (LOG)VISCOSITY INDEX IMPROVER (VII)
Original animation by Doug Wrighte, UWA
Modified by Fluid Life
Volumetric Efficiency: All pumps have internal leakage paths.
Mechanical Efficiency: Energy is consumed to rotate pump and overcome fluid frictional losses.
The amount of mechanical and volumetric loss in a pump is primarily
a function of the fluid’s viscosity and lubricity properties.
Ref: Evonik Industries
Source: Evonik Industries
Field trial done by vendor on a medium size excavator with dual piston pump feeding 3 piston motors (tracks and swivel) plus boom, stick and bucket cylinders (5000 psi / 345 bar max.) Each product ran for 4 days (~6 hours / day)
Results above are extrapolated to 4000 hrs using a Denison T6CM pump (B10 cartridge, 2000 rpm, 200 bar, 70oC) to benchmark field trial products and internal multi-grade. Since the efficiency of the pump is based on viscometric properties of the fluid at certain temperatures and pressure conditions, data can be accurately extrapolated from the field trial and bench tests to other products.