Marquette University | Milwaukee School of Engineering | Purdue University | University of California, Merced | University of Illinois, Urbana-Champaign | University of Minnesota | Vanderbilt University Project 16FT1: Simulation, Rheology and Efficiency of Polymer Enhanced Solutions Ashlie Martini University of California Merced & Paul Michael Milwaukee School of Engineering CCEFP Webinar October 14, 2016
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Marquette University | Milwaukee School of Engineering | Purdue University | University of California, Merced | University of Illinois, Urbana-Champaign | University of Minnesota |
Vanderbilt University
Project 16FT1: Simulation, Rheology and
Efficiency of Polymer Enhanced Solutions
Ashlie Martini
University of California Merced
&
Paul Michael
Milwaukee School of Engineering
CCEFP Webinar
October 14, 2016
2
Research Strategy
Project Goal: Bridge the gap between fundamental behavior of polymer
enhanced fluids and the performance of complex fluid power systems
Hydraulic
Efficiency
Solution
Rheology
Molecular
Structure
3
Today’s PresentationNext Steps
Sept 2016: Complete dynamometer
testing of shear stable PMA - MSOE
• Fall 2016: Perform MD and rheology
tests on PIB polymer-containing
solutions – UC Merced
• Spring 2017: Test PIB polymer-
containing fluids in dyno - MSOE
Part I: Characterization of the effect
viscosity and shear stability on flow
losses for fluids with PMA additives
Part II: Development of methods to
study the effect of concentration and
polymer entanglement on viscosity of
fluids with PIB additives
4
Part I: Efficiency-Rheology
Fluid ID HM46-6 HV46-5 HV46-8 HM46-7
Base Oil Group III Group III Group III Group II
4 cSt base oil 54% 54% NA
8 cSt base oil 100% 32% 32% NA
Polymer nil PMA PMA nil
Antiwear additive ZDDP ZDDP ZDDP ZDDP
• Four ISO viscosity grade 46 antiwear hydraulic fluids
• Zinc-based antiwear additive
• Two straight-grade fluids with Newtonian viscosity characteristics
• HM46-6 and HM46-7
• Two multigrade fluids with non-Newtonian viscosity characteristics
• HV46-5 and HV46-8
• Same ratio of 4cSt and 8cSt Group III base oils
• Different polyalkylmethacrylate (PAMA) polymers
• Low shear stability and high shear stability
5
Fluid Viscosity
HV46-5 HV46-8
Multi-grade, PMA
Additive
HM46-6
Straight-grade,
no PMA
ASTM D2196-15: Standard Test
Methods for Rheological Properties of
Non-Newtonian Materials by Rotational
Viscometer
6
Shear Stability
ASTM D5621 - Standard
Test Method for Sonic
Shear Stability of
Hydraulic Fluids
Fluid ID Method HM46-6 HV46-5 HV46-8 HM46-7
Kin Vis 40C, cSt D445 before shear 44.63 49.00 49.35 47.42
Kin Vis 40C, cSt D5621 after shear 44.39 42.78 44.84 46.85
Kin Vis 100C, cSt D445 before shear 7.39 10.56 9.89 7.09
Kin Vis 100C, cSt D5621 after shear 7.36 8.85 8.90 7.05
Vis Loss, % Change at 100C 0.4 16.2 10.0 0.6
UCM Abs Vis 40C, mPa*s rheometer 37.46 40.91 41.49