Application of CNT nanofluids in a turbulent flow heat exchanger

Nanofluids have received much attention since its discovery owing to its enhanced thermal conductivity and heat transfer characteristics which makes them a promising coolant in heat transfer application. In this study, the enhancement in heat transfer of carbon nanotube (CNT) nanofluids under turbul...

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Main Authors:	Walvekar, Rashmi, Siddiqui, Mohammad Khalid, Ong, SeikSan, Ismail, Ahmad Faris
Format:	Article
Language:	English English
Published:	Taylor & Francis 2015
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://irep.iium.edu.my/42763/ http://irep.iium.edu.my/42763/ http://irep.iium.edu.my/42763/ http://irep.iium.edu.my/42763/1/Experimental_Nanoscience_2015b.pdf http://irep.iium.edu.my/42763/4/42763_Application%20of%20CNT%20nanofluids%20in%20a%20turbulent%20flow%20heat%20exchanger_Scopus.pdf

id	iium-42763
recordtype	eprints
spelling	iium-427632017-04-03T03:53:17Z http://irep.iium.edu.my/42763/ Application of CNT nanofluids in a turbulent flow heat exchanger Walvekar, Rashmi Siddiqui, Mohammad Khalid Ong, SeikSan Ismail, Ahmad Faris TJ Mechanical engineering and machinery Nanofluids have received much attention since its discovery owing to its enhanced thermal conductivity and heat transfer characteristics which makes them a promising coolant in heat transfer application. In this study, the enhancement in heat transfer of carbon nanotube (CNT) nanofluids under turbulent flow conditions is investigated experimentally. The CNT concentration was varied from 0.051 to 0.085 wt%, respectively. The nanofluid suspension was stabilised by gum arabic through a process of homogenisation and water bath sonication at 25'C. The flow rate of cold fluid (water) is varied from 1.7 to 3 L/min, while flow rate of the hot fluid is varied between 2 and 3.5 L/min. Thermal conductivity, density, and viscosity of the nanofluids are also measured as a function of temperature and CNT concentration. The experimental results were validated with theoretical correlations for turbulent flow available in the literature. Results showed an enhancement in heat transfer between 9% and 67% as a function of temperature and CNT concentration. Taylor & Francis 2015-02 Article PeerReviewed application/pdf en http://irep.iium.edu.my/42763/1/Experimental_Nanoscience_2015b.pdf application/pdf en http://irep.iium.edu.my/42763/4/42763_Application%20of%20CNT%20nanofluids%20in%20a%20turbulent%20flow%20heat%20exchanger_Scopus.pdf Walvekar, Rashmi and Siddiqui, Mohammad Khalid and Ong, SeikSan and Ismail, Ahmad Faris (2015) Application of CNT nanofluids in a turbulent flow heat exchanger. Journal of Experimental Nanoscience, 11 (1). pp. 1-17. ISSN 17458080 http://www.tandfonline.com/loi/tjen20 10.1080/17458080.2015.1015461
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Walvekar, Rashmi Siddiqui, Mohammad Khalid Ong, SeikSan Ismail, Ahmad Faris Application of CNT nanofluids in a turbulent flow heat exchanger
description	Nanofluids have received much attention since its discovery owing to its enhanced thermal conductivity and heat transfer characteristics which makes them a promising coolant in heat transfer application. In this study, the enhancement in heat transfer of carbon nanotube (CNT) nanofluids under turbulent flow conditions is investigated experimentally. The CNT concentration was varied from 0.051 to 0.085 wt%, respectively. The nanofluid suspension was stabilised by gum arabic through a process of homogenisation and water bath sonication at 25'C. The flow rate of cold fluid (water) is varied from 1.7 to 3 L/min, while flow rate of the hot fluid is varied between 2 and 3.5 L/min. Thermal conductivity, density, and viscosity of the nanofluids are also measured as a function of temperature and CNT concentration. The experimental results were validated with theoretical correlations for turbulent flow available in the literature. Results showed an enhancement in heat transfer between 9% and 67% as a function of temperature and CNT concentration.
format	Article
author	Walvekar, Rashmi Siddiqui, Mohammad Khalid Ong, SeikSan Ismail, Ahmad Faris
author_facet	Walvekar, Rashmi Siddiqui, Mohammad Khalid Ong, SeikSan Ismail, Ahmad Faris
author_sort	Walvekar, Rashmi
title	Application of CNT nanofluids in a turbulent flow heat exchanger
title_short	Application of CNT nanofluids in a turbulent flow heat exchanger
title_full	Application of CNT nanofluids in a turbulent flow heat exchanger
title_fullStr	Application of CNT nanofluids in a turbulent flow heat exchanger
title_full_unstemmed	Application of CNT nanofluids in a turbulent flow heat exchanger
title_sort	application of cnt nanofluids in a turbulent flow heat exchanger
publisher	Taylor & Francis
publishDate	2015
url	http://irep.iium.edu.my/42763/ http://irep.iium.edu.my/42763/ http://irep.iium.edu.my/42763/ http://irep.iium.edu.my/42763/1/Experimental_Nanoscience_2015b.pdf http://irep.iium.edu.my/42763/4/42763_Application%20of%20CNT%20nanofluids%20in%20a%20turbulent%20flow%20heat%20exchanger_Scopus.pdf
first_indexed	2023-09-18T21:00:56Z
last_indexed	2023-09-18T21:00:56Z
_version_	1777410618603601920

Application of CNT nanofluids in a turbulent flow heat exchanger

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