Investigation the impact of surfactant on the stability of nanofluids in thepresence of aluminium oxide as an additive in ignition engines

Nanotechnology refers to the ability to manipulate, measure, produce, and fabricate particleswithin the range of ۱-۱۰۰ nanometers in size [۱]. The study of materials and their properties is afundamental aspect of many academic disciplines. Nanotechnology is a field of study thatencompasses various disciplines, such as toxicology, medicine, physics, chemistry, biology,mechanics, and engineering, among others. It is an interdisciplinary area of knowledge [۲]. Theproper implementation of physical and chemical techniques for achieving uniform dispersion ofnanoparticles in base fuels and preventing agglomeration is a crucial aspect in the context ofignition (CI) engines. A dual-stage methodology was employed in the production of nano-additivefuels. Initially, the production of nanoparticles involved the utilisation of surfactants to facilitatethe separation of particles, minimise agglomeration, and enhance the chemical stabilisation of thesuspension. The steric stabilisation mechanism is responsible for the ability of surfactants tostabilise suspensions, which is a noteworthy observation [۳]. In this study, ϒ-Al۲O۳ nanoparticleswas used as the additive for reducing the ignition delay time in the present of theDimethylaminoethyl azide (DMAZ), and then the effects of surfactant on droplet burning rate arediscussed.Therefore sorbitan monooleate(sp-۸۰), sorbitan trioleate (sp-۲۰), Polysorbate ۸۰(tween-۸۰), poly ethylene Glycol-۲۰۰ (KEPEG ۲۰۰), polysorbate ۶۰ (tween-۶۰=KEPS ۶۰), polysorbate۲۰ (tween-۲۰=KEPS ۲۰), Cetyl Trimethyl Ammonium Bromide (CTAB), and combinations ofthese surfactants were examind. the obtaind results confirm tween-۲۰ ,tween-۶۰, and CTAB haveaccaptale efficency.

Keywords:

Surfactant , Tween , ϒ-Al۲O۳ , Nanoparticles