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@article{185809,
        author = {Hemantkumar H. Kadam and Ashok T. Pise and Ayush V. Sali and Vaibhav G. Talandage},
        title = {Experimental Study: Impact of Surfactant on the Stability of Alumina Nanofluids},
        journal = {International Journal of Innovative Research in Technology},
        year = {},
        volume = {12},
        number = {no},
        pages = {66-83},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=185809},
        abstract = {To address the instability of nanoparticles (NPs) in base fluids (BF) due to agglomeration and sedimentation, nanofluids (NFs) were developed to enhance heat transfer and thermal system efficiency. Surfactants are commonly added to improve NP stability by inducing steric or electrostatic repulsion to counteract Van der Waals forces. In this study, NFs were prepared by ultrasonically dispersing Al2O3 (0.02–0.5 wt.%) in distilled water, stabilized with Rhamnolipids (RHL, 200–600 ppm) bio-surfactant and synthetic surfactants (SDS, SLS, and PVP, 2000–4500 ppm). Stability was assessed using UV-spectroscopy, dynamic light scattering, zeta potential, and viscosity measurements. Results indicated that stability improved with surfactant concentration, peaking at 3750 ppm (SDS), 4250 ppm (SLS), and 550 ppm (RHL). However, stability declined beyond 0.1 wt.% NP concentration. While RHL showed slightly lower stability than SDS and SLS, it is an eco-friendly alternative. PVP was ineffective and not recommended for further research. These surfactants are promising for heat transfer applications with alumina NFs.},
        keywords = {Nanofluid, Nanoparticle, Stability, Surfactant, Zeta-Potential, Dynamic light scattering, UV-Spectroscopy},
        month = {},
        }