Effect of Temperature on Heat Transfer Coefficient of Titanium Dioxide in Ethylene Glycol-based Nanofluid

Nanofluid as a coolant has potential for use in the heat transfer field because of its augmentation in thermal properties that offers advantages in heat transfer. Research on various working temperatures is still ongoing in the nanofluid field. This study focused on the effect of temperature on heat...

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Main Authors: Abdul Hamid, K., Azmi, W. H., R., Mamat, Usri, N. A., G., Najafi
Format: Article
Language:English
Published: Faculty Mechanical Engineering, UMP 2015
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/11665/
http://umpir.ump.edu.my/id/eprint/11665/1/11_Abdul%20Hamid%20et%20al.pdf
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author Abdul Hamid, K.
Azmi, W. H.
R., Mamat
Usri, N. A.
G., Najafi
author_facet Abdul Hamid, K.
Azmi, W. H.
R., Mamat
Usri, N. A.
G., Najafi
author_sort Abdul Hamid, K.
building UMP Institutional Repository
collection Online Access
description Nanofluid as a coolant has potential for use in the heat transfer field because of its augmentation in thermal properties that offers advantages in heat transfer. Research on various working temperatures is still ongoing in the nanofluid field. This study focused on the effect of temperature on heat transfer behavior using titanium dioxide or TiO2 nanofluid as the working fluid in forced convection. The heat transfer coefficient was determined for flow in a circular tube under constant heat flux boundary conditions. The experiment was conducted with a Reynolds number less than 25000 with concentrations of TiO2 nanofluid at 0.5%, 1.0% and 1.5%. At 30oC, the maximum enhancement of 9.72% for 1.5% volume concentration was observed. Enhancements of 22.75% and 28.92% were found at 50oC and 70oC, respectively under similar nanofluid concentrations. The nanofluid performance was significantly influenced by working temperature. The heat transfer enhancement of TiO2 nanofluid was considerably improved at higher working temperature and high concentration because of the improvement of thermal properties.
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spelling ump-116652018-01-23T06:50:14Z http://umpir.ump.edu.my/id/eprint/11665/ Effect of Temperature on Heat Transfer Coefficient of Titanium Dioxide in Ethylene Glycol-based Nanofluid Abdul Hamid, K. Azmi, W. H. R., Mamat Usri, N. A. G., Najafi TJ Mechanical engineering and machinery Nanofluid as a coolant has potential for use in the heat transfer field because of its augmentation in thermal properties that offers advantages in heat transfer. Research on various working temperatures is still ongoing in the nanofluid field. This study focused on the effect of temperature on heat transfer behavior using titanium dioxide or TiO2 nanofluid as the working fluid in forced convection. The heat transfer coefficient was determined for flow in a circular tube under constant heat flux boundary conditions. The experiment was conducted with a Reynolds number less than 25000 with concentrations of TiO2 nanofluid at 0.5%, 1.0% and 1.5%. At 30oC, the maximum enhancement of 9.72% for 1.5% volume concentration was observed. Enhancements of 22.75% and 28.92% were found at 50oC and 70oC, respectively under similar nanofluid concentrations. The nanofluid performance was significantly influenced by working temperature. The heat transfer enhancement of TiO2 nanofluid was considerably improved at higher working temperature and high concentration because of the improvement of thermal properties. Faculty Mechanical Engineering, UMP 2015 Article PeerReviewed application/pdf en cc_by_nc_nd http://umpir.ump.edu.my/id/eprint/11665/1/11_Abdul%20Hamid%20et%20al.pdf Abdul Hamid, K. and Azmi, W. H. and R., Mamat and Usri, N. A. and G., Najafi (2015) Effect of Temperature on Heat Transfer Coefficient of Titanium Dioxide in Ethylene Glycol-based Nanofluid. Journal of Mechanical Engineering and Sciences (JMES) , 8. pp. 1367-1375. ISSN 2289-4659 (print); 2231-8380 (online). (Published) http://dx.doi.org/10.15282/jmes.8.2015.11.0133 DOI: 10.15282/jmes.8.2015.11.0133
spellingShingle TJ Mechanical engineering and machinery
Abdul Hamid, K.
Azmi, W. H.
R., Mamat
Usri, N. A.
G., Najafi
Effect of Temperature on Heat Transfer Coefficient of Titanium Dioxide in Ethylene Glycol-based Nanofluid
title Effect of Temperature on Heat Transfer Coefficient of Titanium Dioxide in Ethylene Glycol-based Nanofluid
title_full Effect of Temperature on Heat Transfer Coefficient of Titanium Dioxide in Ethylene Glycol-based Nanofluid
title_fullStr Effect of Temperature on Heat Transfer Coefficient of Titanium Dioxide in Ethylene Glycol-based Nanofluid
title_full_unstemmed Effect of Temperature on Heat Transfer Coefficient of Titanium Dioxide in Ethylene Glycol-based Nanofluid
title_short Effect of Temperature on Heat Transfer Coefficient of Titanium Dioxide in Ethylene Glycol-based Nanofluid
title_sort effect of temperature on heat transfer coefficient of titanium dioxide in ethylene glycol-based nanofluid
topic TJ Mechanical engineering and machinery
url http://umpir.ump.edu.my/id/eprint/11665/
http://umpir.ump.edu.my/id/eprint/11665/
http://umpir.ump.edu.my/id/eprint/11665/
http://umpir.ump.edu.my/id/eprint/11665/1/11_Abdul%20Hamid%20et%20al.pdf