We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byOswaldo Crain
Modified over 4 years ago
LUBRICANT & LUBRICATION
Crude Oil Gasoline Kerosene Fuel Oil Oil Lubricant H.C. Oil Waxn-Parafin Gasoline Kerosene Fuel Oil Oil Lubricant H.C. Oil Wax Aromatic S & N Contaminant psi Hydrocracking Catalitic Treatment 430 – 550 C Additives H.C. Lube Oil
Chemical Additives 1. Oxidation Inhibitor (O) 2. Rust Inhibitor (R) 3. Anti Wear & Extreme Pressure (EP) 4. Friction Modifier (W ) 5. Detergent & Dispersant (D) 6. Pour-point Depressant (P) 7. Foam Inhibitor (F) 8. Viscosity Index Improver (VI)
Tabel hal. 25
Synthetic Oil Hydrocarbon Poly Alpha-Olefins (PAOs)
t = m dU/dy Viscosity U Y F h X Newtonian Fluid F/A = m U/hm = (F/A) / (U/h) m = Shear Stress / Shear Rate
m = Absolute Viscosity (Dyne.s/cm2 - Poise)v = Kinematic Viscosity r = Density (grm/cm3) v = m / r (Stoke – St) (cSt – mm2/s) Saybolt Universal Seconds (SUS)
Tabel hal, 28
Viscosity vs Temperaturelog. log (v + 0.7) = A – B log T T = Temperature v = Kinematic viscosity A, B = Constants – given oil
Vogel Equation b = Viscosity-Temp. Coeff
L = Viscosity (40C) dari zero-VI oilH = viscosity (40C) dari 100-VI oil U = vsicosity (40C) dari Unkown-oil
ASTM Y = Viscosity cSt(100 C) unkown oil
Viscosity vs Pressure a = Pressure-viscosity Coeff.
Roelands Equation C = konstanta – unit (196.1 MPa atau psi) Z = 0.6 = 0.4 – 0.8 synthetic oil
Unit D: Agricultural Equipment Systems Lesson 1: Understanding Applications of Fluids and Lubricants in Agricultural Equipment 1.
3.5 Non-Newtonian fluids Newtonian fluids are fluids which follow Newton’s law: Shear Stress Shear Rate CHE Non-Newtonian fluids.
KP 013 Pump Reservoir Calculations Oil Temperature- Although the pumps use cooling fins to help dissipate heat, we recommend that the continuous system.
Products and services V8 engine (Diesel) 90 degrees angle 90 degrees angle 3000 cm cm rpm 4000 rpm 200 HP 200 HP Torque 450 Nm Torque 450.
Mobil Super 10W-30.
Density, ρ= mass/unitvolume –Slugs/ft3;kg/m3
Third International Conference
In the name of Allah, Most Gracious, Most Compassionate
Mer331 Lab – Week 2 - Viscosity Background: Viscosity n A fluid is a state of matter that does not permanently resist shear and the resistance to deformation.
Topics Introduction Types of Lubricants Viscosity Viscosity Ratings
Lubrication Oils & Grease. Oil is Oil, Grease is Grease A few things to consider. –Automobiles use 30% of their available horsepower. –Trucks use 60%
Lubrication Training - Basics of Lubrication
CHAPTER 3 n LUBE AND COOLING SYSTEMS. CHAPTER OBJECTIVES n Analyze wear & damage to Lube & cooling parts. n Explain Lube & cooling system theory. n Select.
A sample selection of a phase 1 Mantek Lubemaster Gear Oil Seminar.
Engine Oil Jason Dearden Steven Lemos Engineering 45 Santa Rosa Junior College Spring 2009.
Rob Midgley Oils and Oil Analysis deHavilland Moth Club.
Silicone Grease: Benefits, Risks, and Urban Myths Quick Overview Silicone grease often has a bad rap in automotive manufacturing, despite its ability.
© 2018 SlidePlayer.com Inc. All rights reserved.