CFD-Entropy generation analysis of refrigerant-based nanofluids flow in a tube
The present paper aims to numerically investigate the flow, heat transfer and entropy generation of some hydrocarbon based nanorefrigerants flowing in a circular tube subject to constant heat flux boundary condition. Numerical tests have been performed for 4 types of nanoparticles, namely Al2O3, CuO...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2020-01-01
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| Series: | MATEC Web of Conferences |
| Subjects: | |
| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2020/03/matecconf_icome2017-2018_01038.pdf |
| _version_ | 1818643776606830592 |
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| author | Zohud Mohammed Ouadha Ahmed Benzeguir Redouane |
| author_facet | Zohud Mohammed Ouadha Ahmed Benzeguir Redouane |
| author_sort | Zohud Mohammed |
| collection | DOAJ |
| description | The present paper aims to numerically investigate the flow, heat transfer and entropy generation of some hydrocarbon based nanorefrigerants flowing in a circular tube subject to constant heat flux boundary condition. Numerical tests have been performed for 4 types of nanoparticles, namely Al2O3, CuO, SiO2, and ZnO with a diameter equal to 30 nm and a volume concentration of φ = 5%. These nanoparticles are dispersed in some hydrocarbon-based refrigerants, namely tetrafluoroethane (R134a), propane (R290), butane (R600), isobutane (R600a) and propylene (R1270). Computations have been performed for Reynolds number ranging from 600 to 2200. The numerical results in terms of the average heat transfer coefficient of pure refrigerants have been compared to values obtained using correlations from the literature. The results show that the increase of the Reynolds number increases the heat transfer coefficient and decreases the total entropy generation. |
| first_indexed | 2024-12-17T00:04:20Z |
| format | Article |
| id | doaj.art-b274f169a6f349bf849fc3038c99e6f9 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-17T00:04:20Z |
| publishDate | 2020-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-b274f169a6f349bf849fc3038c99e6f92022-12-21T22:11:00ZengEDP SciencesMATEC Web of Conferences2261-236X2020-01-013070103810.1051/matecconf/202030701038matecconf_icome2017-2018_01038CFD-Entropy generation analysis of refrigerant-based nanofluids flow in a tubeZohud MohammedOuadha AhmedBenzeguir RedouaneThe present paper aims to numerically investigate the flow, heat transfer and entropy generation of some hydrocarbon based nanorefrigerants flowing in a circular tube subject to constant heat flux boundary condition. Numerical tests have been performed for 4 types of nanoparticles, namely Al2O3, CuO, SiO2, and ZnO with a diameter equal to 30 nm and a volume concentration of φ = 5%. These nanoparticles are dispersed in some hydrocarbon-based refrigerants, namely tetrafluoroethane (R134a), propane (R290), butane (R600), isobutane (R600a) and propylene (R1270). Computations have been performed for Reynolds number ranging from 600 to 2200. The numerical results in terms of the average heat transfer coefficient of pure refrigerants have been compared to values obtained using correlations from the literature. The results show that the increase of the Reynolds number increases the heat transfer coefficient and decreases the total entropy generation.https://www.matec-conferences.org/articles/matecconf/pdf/2020/03/matecconf_icome2017-2018_01038.pdfnanorefrigerantcfdheat transfer coefficiententropy generationpressure drop |
| spellingShingle | Zohud Mohammed Ouadha Ahmed Benzeguir Redouane CFD-Entropy generation analysis of refrigerant-based nanofluids flow in a tube MATEC Web of Conferences nanorefrigerant cfd heat transfer coefficient entropy generation pressure drop |
| title | CFD-Entropy generation analysis of refrigerant-based nanofluids flow in a tube |
| title_full | CFD-Entropy generation analysis of refrigerant-based nanofluids flow in a tube |
| title_fullStr | CFD-Entropy generation analysis of refrigerant-based nanofluids flow in a tube |
| title_full_unstemmed | CFD-Entropy generation analysis of refrigerant-based nanofluids flow in a tube |
| title_short | CFD-Entropy generation analysis of refrigerant-based nanofluids flow in a tube |
| title_sort | cfd entropy generation analysis of refrigerant based nanofluids flow in a tube |
| topic | nanorefrigerant cfd heat transfer coefficient entropy generation pressure drop |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2020/03/matecconf_icome2017-2018_01038.pdf |
| work_keys_str_mv | AT zohudmohammed cfdentropygenerationanalysisofrefrigerantbasednanofluidsflowinatube AT ouadhaahmed cfdentropygenerationanalysisofrefrigerantbasednanofluidsflowinatube AT benzeguirredouane cfdentropygenerationanalysisofrefrigerantbasednanofluidsflowinatube |