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SUMMARY:Amphiphilic surfactants as model additives for engine friction red
 uction and Michael Sargent - Battery Thermal Management Fluids and Systems
  - Beatrice Boggio Robutti and Michael Sargent\, Institute for Energy and 
 Environmental Flows
DTSTART:20221201T113000Z
DTEND:20221201T123000Z
UID:TALK192587@talks.cam.ac.uk
CONTACT:Catherine Pearson
DESCRIPTION:Beatrice Boggio Robutti - Amphiphilic surfactants as model add
 itives for engine friction reduction\n\nMetal-metal contacts within engine
 s experience high levels of friction and wear\, which contribute to the pr
 oduction of harmful vehicle emissions\; the annual global cost of friction
  and wear is estimated to be €2.5 trillion and represents a significant 
 energy loss. Organic friction modifiers (OFMs) are amphiphilic surfactants
  often utilised to minimise engine losses with the ultimate aim of enhanci
 ng vehicle fuel economy. Over the past century\, a conventional OFM mode o
 f action has been established\, where OFM adsorption at metallic surfaces 
 is thought to form compact monolayer surface films. These films are believ
 ed to form planes of low shear resistance between contacting metallic surf
 aces\, reducing friction. It is challenging to reproduce the conditions fo
 und within a combustion engine and probe the interfacial structure of adso
 rbed OFMs in-situ\; hence\, much of the research has been conducted under 
 static or mild conditions.\n\nIn this work\, the relationship between mole
 cular structure\, surface structure\, and friction lowering-ability of OFM
 s is investigated in regimes that are relevant to the operational conditio
 ns of engines. An experimental study is carried out through a combination 
 of conventional techniques and neutron scattering\, and is focussed on the
  aminic surfactant Ethomeen 18/12 in the presence/absence of dopants.\n\nM
 ichael Sargent - Battery Thermal Management Fluids and Systems\n\nAdvances
  in electric vehicle battery technology have allowed for higher capacity b
 atteries and longer range journeys\, however a bottleneck to the widesprea
 d adoption of electric vehicles remains in the significant increase in the
  time required to recharge\, when compared to refuelling a petroleum vehic
 le. This ICAM project seeks to address this problem by investigating metho
 ds and materials to directly manage the temperature withing battery cells 
 to facilitate rapid charging and discharging\, without compromising the in
 tegrity or lifespan of the batteries.\n\n
LOCATION:Open Plan Area\, BP Institute\, Madingley Rise CB3 0EZ
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