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Influence of Particle Size Distribution on the Optical Properties of Fine-Dispersed Suspensions

Dmitrii Kuzmenkov1,*, Pavel Struchalin1,2, Yulia Litvintsova1, Maksim Delov1, Vladimir Skrytnyy1, Kirill Kutsenko1

1 National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moscow, 115409, Russian Federation
2 Western Norway University of Applied Sciences, Bergen, 5063, Norway

* Corresponding Author: Dmitrii Kuzmenkov. Email:

Fluid Dynamics & Materials Processing 2022, 18(1), 1-14.


Nanofluids have great potential for solar energy harvesting due to their suitable optical and thermophysical properties. One of the promising applications of nanofluids is utilization in solar collectors with the direct absorption of light (DASC). The design of a DASC requires detailed knowledge of the optical properties of nanofluids, which can be significantly affected by the particle size distribution. The paper presents the method to take into account the particle size distribution when calculating nanofluid extinction spectra. To validate the proposed model, the particle size distribution and spectral absorbance were measured for aqueous suspension with multi-walled graphite nanotubes; the minimum size of primary nanoparticles was 49 nm. The proposed model is compared with experiments demonstrating the concentration averaged and maximum discrepancies of 6.6% and 32.2% against 12.6% and 77.7% for a model assuming a monosized suspension.


Cite This Article

Kuzmenkov, D., Struchalin, P., Litvintsova, Y., Delov, M., Skrytnyy, V. et al. (2022). Influence of Particle Size Distribution on the Optical Properties of Fine-Dispersed Suspensions. FDMP-Fluid Dynamics & Materials Processing, 18(1), 1–14.

This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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