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Characteristics investigation on heat transfer growth of sonochemically synthesized ZnO-DW based nanofluids inside square heat exchanger

In recent decades, the growth of heat transfer using nanomaterials in the conventional base fluid has caught the attention of researchers around the world. The present research investigates the growth in heat transfer using ZnO-DW based nanofluids in a square heat exchanger. ZnO nanoparticles were s...

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Main Authors: Ahmed, Waqar, Chowdhury, Zaira Zaman, Kazi, Salim Nawaz, Johan, Mohd Rafie, Akram, Naveed, Oon, C. S., Abdelrazek, Ali H.
Format: Article
Published: Springer 2021
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QD Chemistry
Online Access:http://eprints.um.edu.my/28660/
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spelling my.um.eprints.286602023-12-01T07:14:53Z http://eprints.um.edu.my/28660/ Characteristics investigation on heat transfer growth of sonochemically synthesized ZnO-DW based nanofluids inside square heat exchanger Ahmed, Waqar Chowdhury, Zaira Zaman Kazi, Salim Nawaz Johan, Mohd Rafie Akram, Naveed Oon, C. S. Abdelrazek, Ali H. QD Chemistry In recent decades, the growth of heat transfer using nanomaterials in the conventional base fluid has caught the attention of researchers around the world. The present research investigates the growth in heat transfer using ZnO-DW based nanofluids in a square heat exchanger. ZnO nanoparticles were synthesized by using the single-pot sonochemical technique. The ZnO-DW based nanofluids with different concentrations (0.1, 0.075, 0.05 and 0.025 mass%) were prepared by using probe sonication technique. The heat transfer growth will be benchmarked using the experimental data from distilled water experiment. Reynolds numbers, average convective heat transfer coefficient (h), and Nusselt number were calculated and analyzed in this investigation. Significant enhancement of 52% in thermal conductivity was noticed at 45 degrees C for 0.1 mass% concentration of ZnO-DW based nanofluids, which is due to the presence of maximum ZnO nanoparticles. Moreover, the maximum improvement in Nusselt values recorded at the end of the square pipe is 47% for 0.1 mass%, while 32%, 27% and 17% increase was recorded for 0.075, 0.05 and 0.025 mass% concentrations, and heat transfer enhancement was from 500 to 1100, 500 to 960, 500 to 910, and 500 to 900 W m(-2) K-1 for different ZnO-DW based nanofluids mass% concentrations, which is more than water due to stability of nanoparticles. It can be concluded that the heat transfer performance enhancement is credited to the combination of square pipe and well-dispersed and stable ZnO-DW based nanofluids for heat exchanger applications. Springer 2021-05 Article PeerReviewed Ahmed, Waqar and Chowdhury, Zaira Zaman and Kazi, Salim Nawaz and Johan, Mohd Rafie and Akram, Naveed and Oon, C. S. and Abdelrazek, Ali H. (2021) Characteristics investigation on heat transfer growth of sonochemically synthesized ZnO-DW based nanofluids inside square heat exchanger. Journal of Thermal Analysis and Calorimetry, 144 (4). pp. 1517-1534. ISSN 1388-6150, DOI https://doi.org/10.1007/s10973-020-09593-z <https://doi.org/10.1007/s10973-020-09593-z>. 10.1007/s10973-020-09593-z
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QD Chemistry
spellingShingle QD Chemistry
Ahmed, Waqar
Chowdhury, Zaira Zaman
Kazi, Salim Nawaz
Johan, Mohd Rafie
Akram, Naveed
Oon, C. S.
Abdelrazek, Ali H.
Characteristics investigation on heat transfer growth of sonochemically synthesized ZnO-DW based nanofluids inside square heat exchanger
description In recent decades, the growth of heat transfer using nanomaterials in the conventional base fluid has caught the attention of researchers around the world. The present research investigates the growth in heat transfer using ZnO-DW based nanofluids in a square heat exchanger. ZnO nanoparticles were synthesized by using the single-pot sonochemical technique. The ZnO-DW based nanofluids with different concentrations (0.1, 0.075, 0.05 and 0.025 mass%) were prepared by using probe sonication technique. The heat transfer growth will be benchmarked using the experimental data from distilled water experiment. Reynolds numbers, average convective heat transfer coefficient (h), and Nusselt number were calculated and analyzed in this investigation. Significant enhancement of 52% in thermal conductivity was noticed at 45 degrees C for 0.1 mass% concentration of ZnO-DW based nanofluids, which is due to the presence of maximum ZnO nanoparticles. Moreover, the maximum improvement in Nusselt values recorded at the end of the square pipe is 47% for 0.1 mass%, while 32%, 27% and 17% increase was recorded for 0.075, 0.05 and 0.025 mass% concentrations, and heat transfer enhancement was from 500 to 1100, 500 to 960, 500 to 910, and 500 to 900 W m(-2) K-1 for different ZnO-DW based nanofluids mass% concentrations, which is more than water due to stability of nanoparticles. It can be concluded that the heat transfer performance enhancement is credited to the combination of square pipe and well-dispersed and stable ZnO-DW based nanofluids for heat exchanger applications.
format Article
author Ahmed, Waqar
Chowdhury, Zaira Zaman
Kazi, Salim Nawaz
Johan, Mohd Rafie
Akram, Naveed
Oon, C. S.
Abdelrazek, Ali H.
author_facet Ahmed, Waqar
Chowdhury, Zaira Zaman
Kazi, Salim Nawaz
Johan, Mohd Rafie
Akram, Naveed
Oon, C. S.
Abdelrazek, Ali H.
author_sort Ahmed, Waqar
title Characteristics investigation on heat transfer growth of sonochemically synthesized ZnO-DW based nanofluids inside square heat exchanger
title_short Characteristics investigation on heat transfer growth of sonochemically synthesized ZnO-DW based nanofluids inside square heat exchanger
title_full Characteristics investigation on heat transfer growth of sonochemically synthesized ZnO-DW based nanofluids inside square heat exchanger
title_fullStr Characteristics investigation on heat transfer growth of sonochemically synthesized ZnO-DW based nanofluids inside square heat exchanger
title_full_unstemmed Characteristics investigation on heat transfer growth of sonochemically synthesized ZnO-DW based nanofluids inside square heat exchanger
title_sort characteristics investigation on heat transfer growth of sonochemically synthesized zno-dw based nanofluids inside square heat exchanger
publisher Springer
publishDate 2021
url http://eprints.um.edu.my/28660/
_version_ 1784511807327567872
score 13.211869

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