Experimental investigation of nanoparticle mixture ratios on TiO2–SiO2 nanofluids heat transfer performance under turbulent flow

Experimental investigation of nanoparticle mixture ratios on TiO2–SiO2 nanofluids heat transfer performance under turbulent flow

The new class of fluids namely nanofluids are highly desirable in the enhancement of thermal properties. Various studies were carried out based on their greater thermal performance. The nanofluids are also beneficial in improving the heat transfer performance of devices or systems that require cooli...

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Main Authors: K., Abdul Hamid, Azmi, W. H., M. F., Nabil, R., Mamat
Format: Article
Language:English
English
Published: Elsevier Ltd 2018
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://umpir.ump.edu.my/id/eprint/20338/
http://umpir.ump.edu.my/id/eprint/20338/
http://umpir.ump.edu.my/id/eprint/20338/
http://umpir.ump.edu.my/id/eprint/20338/1/Experimental%20Investigation%20of%20Nanoparticle%20Mixture%20Ratios%20on%20Tio2%E2%80%93Sio2%20Nanofluids%20Heat%20Transfer%20Performance%20Under%20Turbulent%20Flow.pdf
http://umpir.ump.edu.my/id/eprint/20338/12/Experimental%20investigation%20of%20nanoparticle%20mixture%20ratios%20on%20TiO2%E2%80%93SiO2.pdf
id ump-20338
recordtype eprints
spelling ump-203382018-07-30T08:38:08Z http://umpir.ump.edu.my/id/eprint/20338/ Experimental investigation of nanoparticle mixture ratios on TiO2–SiO2 nanofluids heat transfer performance under turbulent flow K., Abdul Hamid Azmi, W. H. M. F., Nabil R., Mamat TJ Mechanical engineering and machinery The new class of fluids namely nanofluids are highly desirable in the enhancement of thermal properties. Various studies were carried out based on their greater thermal performance. The nanofluids are also beneficial in improving the heat transfer performance of devices or systems that require cooling operations. However, the performance of nanofluids with dispersion of two or more different nanoparticles is limited in the literature. Hence, the present study was carried out to investigate the heat transfer performance of TiO2–SiO2 nanofluids for various nanoparticle mixture ratios dispersed in a water/ethylene glycol (W/EG) mixture. The convection heat transfer experiment is conducted under turbulent region with Reynolds number from 3000 to 24,000. Five composite mixtures in volume percent of TiO2 and SiO2 nanoparticles are prepared with mixture ratios (TiO2:SiO2) of 20:80, 40:60, 50:50, 60:40 and 80:20 for a constant volume concentration of 1.0%. The heat transfer performance and friction factor were evaluated for the bulk temperatures of 30, 50 and 70 °C. High performance was seen at a 40:60 mixture ratio with heat transfer enhancement of 35.32% at 70 °C temperature. The mixture ratio of 50:50 showed the least enhancement of 9.02% in heat transfer coefficient for a working temperature of 30 °C. Furthermore, the friction factor of the nanofluids is practically negligible due to the small increment. As a conclusion, the nanoparticle mixture ratios of TiO2–SiO2 nanofluids contributed to the overall performance of heat transfer. It was recommended to use 20:80 and 40:60 mixture ratios of TiO2–SiO2 nanofluids in heat transfer systems. Elsevier Ltd 2018-03 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/20338/1/Experimental%20Investigation%20of%20Nanoparticle%20Mixture%20Ratios%20on%20Tio2%E2%80%93Sio2%20Nanofluids%20Heat%20Transfer%20Performance%20Under%20Turbulent%20Flow.pdf pdf en http://umpir.ump.edu.my/id/eprint/20338/12/Experimental%20investigation%20of%20nanoparticle%20mixture%20ratios%20on%20TiO2%E2%80%93SiO2.pdf K., Abdul Hamid and Azmi, W. H. and M. F., Nabil and R., Mamat (2018) Experimental investigation of nanoparticle mixture ratios on TiO2–SiO2 nanofluids heat transfer performance under turbulent flow. International Journal of Heat and Mass Transfer, 118. pp. 617-627. ISSN 0017-9310 https://doi.org/10.1016/j.ijheatmasstransfer.2017.11.036 10.1016/j.ijheatmasstransfer.2017.11.036
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
K., Abdul Hamid
Azmi, W. H.
M. F., Nabil
R., Mamat
Experimental investigation of nanoparticle mixture ratios on TiO2–SiO2 nanofluids heat transfer performance under turbulent flow
description The new class of fluids namely nanofluids are highly desirable in the enhancement of thermal properties. Various studies were carried out based on their greater thermal performance. The nanofluids are also beneficial in improving the heat transfer performance of devices or systems that require cooling operations. However, the performance of nanofluids with dispersion of two or more different nanoparticles is limited in the literature. Hence, the present study was carried out to investigate the heat transfer performance of TiO2–SiO2 nanofluids for various nanoparticle mixture ratios dispersed in a water/ethylene glycol (W/EG) mixture. The convection heat transfer experiment is conducted under turbulent region with Reynolds number from 3000 to 24,000. Five composite mixtures in volume percent of TiO2 and SiO2 nanoparticles are prepared with mixture ratios (TiO2:SiO2) of 20:80, 40:60, 50:50, 60:40 and 80:20 for a constant volume concentration of 1.0%. The heat transfer performance and friction factor were evaluated for the bulk temperatures of 30, 50 and 70 °C. High performance was seen at a 40:60 mixture ratio with heat transfer enhancement of 35.32% at 70 °C temperature. The mixture ratio of 50:50 showed the least enhancement of 9.02% in heat transfer coefficient for a working temperature of 30 °C. Furthermore, the friction factor of the nanofluids is practically negligible due to the small increment. As a conclusion, the nanoparticle mixture ratios of TiO2–SiO2 nanofluids contributed to the overall performance of heat transfer. It was recommended to use 20:80 and 40:60 mixture ratios of TiO2–SiO2 nanofluids in heat transfer systems.
format Article
author K., Abdul Hamid
Azmi, W. H.
M. F., Nabil
R., Mamat
author_facet K., Abdul Hamid
Azmi, W. H.
M. F., Nabil
R., Mamat
author_sort K., Abdul Hamid
title Experimental investigation of nanoparticle mixture ratios on TiO2–SiO2 nanofluids heat transfer performance under turbulent flow
title_short Experimental investigation of nanoparticle mixture ratios on TiO2–SiO2 nanofluids heat transfer performance under turbulent flow
title_full Experimental investigation of nanoparticle mixture ratios on TiO2–SiO2 nanofluids heat transfer performance under turbulent flow
title_fullStr Experimental investigation of nanoparticle mixture ratios on TiO2–SiO2 nanofluids heat transfer performance under turbulent flow
title_full_unstemmed Experimental investigation of nanoparticle mixture ratios on TiO2–SiO2 nanofluids heat transfer performance under turbulent flow
title_sort experimental investigation of nanoparticle mixture ratios on tio2–sio2 nanofluids heat transfer performance under turbulent flow
publisher Elsevier Ltd
publishDate 2018
url http://umpir.ump.edu.my/id/eprint/20338/
http://umpir.ump.edu.my/id/eprint/20338/
http://umpir.ump.edu.my/id/eprint/20338/
http://umpir.ump.edu.my/id/eprint/20338/1/Experimental%20Investigation%20of%20Nanoparticle%20Mixture%20Ratios%20on%20Tio2%E2%80%93Sio2%20Nanofluids%20Heat%20Transfer%20Performance%20Under%20Turbulent%20Flow.pdf
http://umpir.ump.edu.my/id/eprint/20338/12/Experimental%20investigation%20of%20nanoparticle%20mixture%20ratios%20on%20TiO2%E2%80%93SiO2.pdf
first_indexed 2023-09-18T22:29:16Z
last_indexed 2023-09-18T22:29:16Z
_version_ 1777416176184328192

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