Experimental analysis of the stability of ferrofluids based on Iron Oxide powder


energy efficiency


Ferrofluids most often consist of three components, they are: solid particles, the liquid in which they are dissolved and a substance that is supposed to prevent sedimentation - called surfacant. The biggest problem with ferrofluids is their stability. Mixtures in which one of the phases is a solid phase have a natural tendency to sedimentation. As a result, physical properties change during the use of such materials. As part of the research, it was decided to check which ferrofluid composition would be most resistant to continuous evaporation and condensation processes. Three different mixtures were analyzed. As a result of the experiment it was found that the best behavior was mixture of: iron-oxide with n-heptane and fatty acid as surfacant.




Altan, C., Elkatmis, A., Yuksel, M., Aslan, N. & Bucak, S. Enhancement of thermal conductivity upon application of magnetic field to Fe3O4 nanofluids. Journal of Applied Physics 110 (9 2011).

Andersson Trojer, M., Mohamed, A. & Eastoe, J. A highly hydrophobic anionic surfactant at oil–water, water–polymer and oil–polymer interfaces: Implications for spreading coefficients, polymer interactions and microencapsulation via internal phase separation. Colloids and Surfaces A: Physicochemical and Engineering Aspects 436, 1048–1059. issn: 0927-7757 (2013).

Assael, M. J. et al. Reference Correlation of the Thermal Conductivity of n-Heptane from the Triple Point to 600 K and up to 250 MPa. Journal of Physical and Chemical Reference 42 (2 2013).

Chabra, R. & Richardson, J. Non-Newtonian flow in the process industries: fundamentals and engineering applications (Butterworth-Heinemann, 1999).

Fertman, V., Golovicher, L. & Matusevich, N. Thermal conductivity of magnetite magnetic fluids. Journal of Magnetism and Magnetic Materials 65, 211–4 (2-3 1987).

Grzebielec, A., Rusowicz, A. & Ruciński, A. Analysis of the performance of the rotary heat exchanger in the real ventilation systems in. 9th International Conference on Environmental Engineering, ICEE 2014 (Vilnius; Lithuania, 2014).

Heim, D., Mrowiec, A. & Prałat, K. Zastosowanie metody "gorącej nici" do wyznaczania przewodności cieplnej płynnych kwasów organicznych. Inżynieria i Aparatura Chemiczna 49, 51–52 (1 2010).

Hong, T., Yang, H. S. & Choi, C. J. Study of the enhanced thermal conductivity of Fe nanofluids. Journal of Applied Physics 97 (6 2005).

Incropera, F., Lavine, A., Bergman, T. & DeWitt, D. Fundamentals of heat and mass transfer (Wiley, 2007).

Jaworski, M., Rusowicz, A. & Grzebielec, A. Temperature stabilization in buildings by the use of heat/cold storage units with PCM integrated with the ventilation system. Inżynieria Bezpieczeństwa Obiektów Antropogenicznych 3, 31–37 (2019).

Kandlikar, S. et al. Heat transfer in microchannels—2012 status and research needs. Journal of Heat Transfer 1,135 (9 2013).

Kosterec, M. et al. Analysis of Thermal Field in Mineral Transformer Oil Based Magnetic Fluids. Acta Physica Polonica 1,131, 937–9 (4 2017).

Lenin, R. & Joy, P. Role of base fluid on the thermal conductivity of oleic acid coated magnetite nanofluids. Colloids and Surfaces A. Physicochemical and Engineering Aspects 529, 922–9 (2017).

Li, M. et al. Thermal Conductivity of Oxide Scale Thermally Grown on Iron Substrate Corrected by Temperature-dependent Interfacial Thermal Resistance in Laser Flash Measurement. ISIJ International 59, 398–403 (3 2019).

Owczarek, M. An experimental method for estimating the thermal diffusivity of building elements, depending on the resolution of temperature measurement. Modern Engineering, 28–33 (2019).

Owczarek, M. & Baryłka, A. Determining the thermal diffusivity of the material based on the measurement of the temperature profile in the wall. Rynek energii 143, 63–69 (4 2019).

Pietrak, K. & Wiśniewski, T. A review of models for effective thermal conductivity of composite materials. Journal of Power Technologies 23,95, 14–24 (1 2014).

Popplewell, J., Al-Qenaie, A., Charles, S., Moskowitz, R. & Raj, K. Thermal conductivity measurements on ferrofluids. Colloid and Polymer Science 260, 333–8 (3 1982).

Raffa, P., Wever, D., Picchioni, F. & Broekhuis, A. Polymeric surfactants: synthesis, properties, and links to applications. Chemical reviews 16,115, 8504–63 (16 2015).

Raj, K. & Moskowitz, R. Commercial applications of ferrofluids. Journal of Magnetism and Magnetic Materials 1,185, 233–45 (1-3 1990).

Rosensweig, R. Fluid dynamics and science of magnetic liquids. InAdvances in electronics and electron physics. Academic Press 48, 103–199 (1979).

Shamsuri, A. A. & Jamil, S. N. A. M. A Short Review on the Effect of Surfactants on the Mechanical-Thermal Properties of Polymer Nanocomposites. Applied Science 10 (2020).

Soares, P. et al. Effects of surfactants on the magnetic properties of iron oxide colloids. Journal of colloid and interface science 419, 46–51 (2014).

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