Hydrothermal performance improvement of an inserted double pipe heat exchanger with Ionanofluid

To meet the growing energy demand, double pipe heat exchangers (DPHEX), which are used in a variety of energy and thermal engineering applications, require improved heat transfer performance. In this study, a new class of surfactant-free Ionanofluid is formulated at three different concentrations of...

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Main Authors: Das, L., Rubbi, F., Habib, K., Saidur, R., Islam, N., Saha, B.B., Aslfattahi, N., Irshad, K.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.29652 /
Published: Elsevier Ltd 2021
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85116591948&doi=10.1016%2fj.csite.2021.101533&partnerID=40&md5=b194d31921f73a1cb86812223a5e4a7f
http://eprints.utp.edu.my/29652/
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spelling utp-eprints.296522022-03-25T02:12:31Z Hydrothermal performance improvement of an inserted double pipe heat exchanger with Ionanofluid Das, L. Rubbi, F. Habib, K. Saidur, R. Islam, N. Saha, B.B. Aslfattahi, N. Irshad, K. To meet the growing energy demand, double pipe heat exchangers (DPHEX), which are used in a variety of energy and thermal engineering applications, require improved heat transfer performance. In this study, a new class of surfactant-free Ionanofluid is formulated at three different concentrations of 0.01, 0.05 and 0.10 wt and thermophysical and rheological properties are assessed. Zeta potential analysis is executed to assess the dispersion stability. An optimum concentration has been selected to investigate the hydrothermal performance of an insert fitted DPHEX at varying Re from 400 to 2000. The conventional twisted tape (TT) insert is modified by introducing different types of geometrical (triangular, rectangular, and circular) cuts on its surface. According to the Ionanofluid characterization, 0.10 wt Ionanofluid has the highest thermal conductivity enhancement of 64 and heat capacity of 16.1 when compared to the base fluid, with a maximum enhancement in Nu of about 116�136 at varying Re. The rectangular-cut TT imparts highest heat transfer enhancement as the additional vortices is more intensive than other cut-inserts. Nevertheless, the value of PEC for the combination of Ionanofluid and RCTT insert, remaining between 1.61 and 1.68 over the entire range of Re, is greater than other combinations. © 2021 Elsevier Ltd 2021 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85116591948&doi=10.1016%2fj.csite.2021.101533&partnerID=40&md5=b194d31921f73a1cb86812223a5e4a7f Das, L. and Rubbi, F. and Habib, K. and Saidur, R. and Islam, N. and Saha, B.B. and Aslfattahi, N. and Irshad, K. (2021) Hydrothermal performance improvement of an inserted double pipe heat exchanger with Ionanofluid. Case Studies in Thermal Engineering, 28 . http://eprints.utp.edu.my/29652/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description To meet the growing energy demand, double pipe heat exchangers (DPHEX), which are used in a variety of energy and thermal engineering applications, require improved heat transfer performance. In this study, a new class of surfactant-free Ionanofluid is formulated at three different concentrations of 0.01, 0.05 and 0.10 wt and thermophysical and rheological properties are assessed. Zeta potential analysis is executed to assess the dispersion stability. An optimum concentration has been selected to investigate the hydrothermal performance of an insert fitted DPHEX at varying Re from 400 to 2000. The conventional twisted tape (TT) insert is modified by introducing different types of geometrical (triangular, rectangular, and circular) cuts on its surface. According to the Ionanofluid characterization, 0.10 wt Ionanofluid has the highest thermal conductivity enhancement of 64 and heat capacity of 16.1 when compared to the base fluid, with a maximum enhancement in Nu of about 116�136 at varying Re. The rectangular-cut TT imparts highest heat transfer enhancement as the additional vortices is more intensive than other cut-inserts. Nevertheless, the value of PEC for the combination of Ionanofluid and RCTT insert, remaining between 1.61 and 1.68 over the entire range of Re, is greater than other combinations. © 2021
format Article
author Das, L.
Rubbi, F.
Habib, K.
Saidur, R.
Islam, N.
Saha, B.B.
Aslfattahi, N.
Irshad, K.
spellingShingle Das, L.
Rubbi, F.
Habib, K.
Saidur, R.
Islam, N.
Saha, B.B.
Aslfattahi, N.
Irshad, K.
Hydrothermal performance improvement of an inserted double pipe heat exchanger with Ionanofluid
author_sort Das, L.
title Hydrothermal performance improvement of an inserted double pipe heat exchanger with Ionanofluid
title_short Hydrothermal performance improvement of an inserted double pipe heat exchanger with Ionanofluid
title_full Hydrothermal performance improvement of an inserted double pipe heat exchanger with Ionanofluid
title_fullStr Hydrothermal performance improvement of an inserted double pipe heat exchanger with Ionanofluid
title_full_unstemmed Hydrothermal performance improvement of an inserted double pipe heat exchanger with Ionanofluid
title_sort hydrothermal performance improvement of an inserted double pipe heat exchanger with ionanofluid
publisher Elsevier Ltd
publishDate 2021
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85116591948&doi=10.1016%2fj.csite.2021.101533&partnerID=40&md5=b194d31921f73a1cb86812223a5e4a7f
http://eprints.utp.edu.my/29652/
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score 11.62408

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