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An experimental study on resuspension, thermostability and migration phenomenon of nanoparticles in pool boiling

Year 2022, Volume: 8 Issue: 6, 757 - 765, 21.11.2022
https://doi.org/10.18186/thermal.1197197

Abstract

Nanoparticles have proven to be effective in sensible and latent heat exchanges alike. Applications of nanoparticles in phase change processes are associated with migration and resuspension of nanoparticles upon which our existing knowledge is very limited. This work experimentally investigates the migration ratio, stability and resuspension of nanoparticles during phase change. Knowledge on migration ratio is essential to gauge the thermal and lubricative enhancements in the subsequent processes. Al2O3/Water & CuO/Water nanofluids were prepared in four mass fractions (0.05, 0.1, 0.2, 0.4) using ultrasonic agitation technique. Nanofluids with mass fraction higher than 0.5% displayed poor stability over time also, agglomeration and sedimentation were pronounced and inevitable. Nanofluid destabilises and agglomerates rapidly at temperatures closer to saturation temperature. Resuspension of agglomerated chunks were observed during nucleate boiling where the test fluid became extremely nonhomogeneous. Migration ratio was found to commensurate with volume fraction where CuO/water nanofluid exhibited 23% lesser migration ratio than Al2O3/water nanofluid. Maximum migration ratio of 17.8% was observed for Al2O3/water with 0.05 wt%. Maximum migration was found when the molecular dimensions of nanoparticles and the base fluid are of similar magnitudes. It is inadvisable to involve nanoparticles in phase change systems.

References

  • The article references can be accessed from the .pdf file.
Year 2022, Volume: 8 Issue: 6, 757 - 765, 21.11.2022
https://doi.org/10.18186/thermal.1197197

Abstract

References

  • The article references can be accessed from the .pdf file.
There are 1 citations in total.

Details

Primary Language English
Subjects Mechanical Engineering
Journal Section Articles
Authors

R.praveen Bharathwaj This is me 0000-0002-6429-0460

M. B. Varun Pradeep This is me 0000-0002-5154-0520

P. Padmanathan This is me 0000-0003-4151-0392

A. Satheesh This is me 0000-0001-5045-5263

N. R. Devı This is me 0000-0002-3366-2735

Publication Date November 21, 2022
Submission Date September 13, 2021
Published in Issue Year 2022 Volume: 8 Issue: 6

Cite

APA Bharathwaj, R., Varun Pradeep, M. B., Padmanathan, P., Satheesh, A., et al. (2022). An experimental study on resuspension, thermostability and migration phenomenon of nanoparticles in pool boiling. Journal of Thermal Engineering, 8(6), 757-765. https://doi.org/10.18186/thermal.1197197
AMA Bharathwaj R, Varun Pradeep MB, Padmanathan P, Satheesh A, Devı NR. An experimental study on resuspension, thermostability and migration phenomenon of nanoparticles in pool boiling. Journal of Thermal Engineering. November 2022;8(6):757-765. doi:10.18186/thermal.1197197
Chicago Bharathwaj, R.praveen, M. B. Varun Pradeep, P. Padmanathan, A. Satheesh, and N. R. Devı. “An Experimental Study on Resuspension, Thermostability and Migration Phenomenon of Nanoparticles in Pool Boiling”. Journal of Thermal Engineering 8, no. 6 (November 2022): 757-65. https://doi.org/10.18186/thermal.1197197.
EndNote Bharathwaj R, Varun Pradeep MB, Padmanathan P, Satheesh A, Devı NR (November 1, 2022) An experimental study on resuspension, thermostability and migration phenomenon of nanoparticles in pool boiling. Journal of Thermal Engineering 8 6 757–765.
IEEE R. Bharathwaj, M. B. Varun Pradeep, P. Padmanathan, A. Satheesh, and N. R. Devı, “An experimental study on resuspension, thermostability and migration phenomenon of nanoparticles in pool boiling”, Journal of Thermal Engineering, vol. 8, no. 6, pp. 757–765, 2022, doi: 10.18186/thermal.1197197.
ISNAD Bharathwaj, R.praveen et al. “An Experimental Study on Resuspension, Thermostability and Migration Phenomenon of Nanoparticles in Pool Boiling”. Journal of Thermal Engineering 8/6 (November 2022), 757-765. https://doi.org/10.18186/thermal.1197197.
JAMA Bharathwaj R, Varun Pradeep MB, Padmanathan P, Satheesh A, Devı NR. An experimental study on resuspension, thermostability and migration phenomenon of nanoparticles in pool boiling. Journal of Thermal Engineering. 2022;8:757–765.
MLA Bharathwaj, R.praveen et al. “An Experimental Study on Resuspension, Thermostability and Migration Phenomenon of Nanoparticles in Pool Boiling”. Journal of Thermal Engineering, vol. 8, no. 6, 2022, pp. 757-65, doi:10.18186/thermal.1197197.
Vancouver Bharathwaj R, Varun Pradeep MB, Padmanathan P, Satheesh A, Devı NR. An experimental study on resuspension, thermostability and migration phenomenon of nanoparticles in pool boiling. Journal of Thermal Engineering. 2022;8(6):757-65.

IMPORTANT NOTE: JOURNAL SUBMISSION LINK http://eds.yildiz.edu.tr/journal-of-thermal-engineering