Numerical modeling for thermal performance augmentation of nanofluid in solar flat plate collector equipped with twisted tape
The aim of this work is to enhance thermal performance characteristics in a solar flat plate collector with inserts typical twisted tapes and Al2O3-water nanofluid as the working fluid. Using twisted tapes make contact surface area and swirl intensity to increase. Numerical present analysis of the t...
| Main Authors: | , |
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| Format: | Article |
| Language: | fas |
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Semnan University
2019-06-01
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| Series: | مجله مدل سازی در مهندسی |
| Subjects: | |
| Online Access: | https://modelling.semnan.ac.ir/article_3930_4b4816af18c1805e039d69b414751bb9.pdf |
| _version_ | 1827342349909360640 |
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| author | Seyed Ali Frashad mohsen sheikholeslami |
| author_facet | Seyed Ali Frashad mohsen sheikholeslami |
| author_sort | Seyed Ali Frashad |
| collection | DOAJ |
| description | The aim of this work is to enhance thermal performance characteristics in a solar flat plate collector with inserts typical twisted tapes and Al2O3-water nanofluid as the working fluid. Using twisted tapes make contact surface area and swirl intensity to increase. Numerical present analysis of the thermal and fluid behaviors of the tubes with twisted tapes in different arrangements has been investigated under constant heat flux condition with the Reynolds number ranging from 4000 to 20000. For numerical solution of this problem, The Fluent commercial software has been used in which Realizable k-ε turbulence model was applied. According to the tests, the numerical results show that the twisted tape inserted in a solar flat plate collector induce swirling flows which help to improve fluid mixing, therefore increasing diameter ratio (D*) and revaluation of ratio (N) enhance heat transfer rate and the other hand, the pressure drop and also the friction factor increase. The maximum thermal performance factor of 1.08 is obtained by using twisted tapes with N = 7 and D* = 0.014 at the lowest Reynolds number of 4000 |
| first_indexed | 2024-03-07T22:06:22Z |
| format | Article |
| id | doaj.art-a36d41d4259c42929a9d6d19ff6fe098 |
| institution | Directory Open Access Journal |
| issn | 2008-4854 2783-2538 |
| language | fas |
| last_indexed | 2024-03-07T22:06:22Z |
| publishDate | 2019-06-01 |
| publisher | Semnan University |
| record_format | Article |
| series | مجله مدل سازی در مهندسی |
| spelling | doaj.art-a36d41d4259c42929a9d6d19ff6fe0982024-02-23T19:06:13ZfasSemnan Universityمجله مدل سازی در مهندسی2008-48542783-25382019-06-01175729531310.22075/jme.2019.15890.15743930Numerical modeling for thermal performance augmentation of nanofluid in solar flat plate collector equipped with twisted tapeSeyed Ali Frashad0mohsen sheikholeslami1Msc Student, Babol Noshirvani University of TechnologyAssistant Professor, Babol Noshirvani University of TechnologyThe aim of this work is to enhance thermal performance characteristics in a solar flat plate collector with inserts typical twisted tapes and Al2O3-water nanofluid as the working fluid. Using twisted tapes make contact surface area and swirl intensity to increase. Numerical present analysis of the thermal and fluid behaviors of the tubes with twisted tapes in different arrangements has been investigated under constant heat flux condition with the Reynolds number ranging from 4000 to 20000. For numerical solution of this problem, The Fluent commercial software has been used in which Realizable k-ε turbulence model was applied. According to the tests, the numerical results show that the twisted tape inserted in a solar flat plate collector induce swirling flows which help to improve fluid mixing, therefore increasing diameter ratio (D*) and revaluation of ratio (N) enhance heat transfer rate and the other hand, the pressure drop and also the friction factor increase. The maximum thermal performance factor of 1.08 is obtained by using twisted tapes with N = 7 and D* = 0.014 at the lowest Reynolds number of 4000https://modelling.semnan.ac.ir/article_3930_4b4816af18c1805e039d69b414751bb9.pdftwisted tapenanofluidturbulentsolar flat plate collectorforced convection |
| spellingShingle | Seyed Ali Frashad mohsen sheikholeslami Numerical modeling for thermal performance augmentation of nanofluid in solar flat plate collector equipped with twisted tape مجله مدل سازی در مهندسی twisted tape nanofluid turbulent solar flat plate collector forced convection |
| title | Numerical modeling for thermal performance augmentation of nanofluid in solar flat plate collector equipped with twisted tape |
| title_full | Numerical modeling for thermal performance augmentation of nanofluid in solar flat plate collector equipped with twisted tape |
| title_fullStr | Numerical modeling for thermal performance augmentation of nanofluid in solar flat plate collector equipped with twisted tape |
| title_full_unstemmed | Numerical modeling for thermal performance augmentation of nanofluid in solar flat plate collector equipped with twisted tape |
| title_short | Numerical modeling for thermal performance augmentation of nanofluid in solar flat plate collector equipped with twisted tape |
| title_sort | numerical modeling for thermal performance augmentation of nanofluid in solar flat plate collector equipped with twisted tape |
| topic | twisted tape nanofluid turbulent solar flat plate collector forced convection |
| url | https://modelling.semnan.ac.ir/article_3930_4b4816af18c1805e039d69b414751bb9.pdf |
| work_keys_str_mv | AT seyedalifrashad numericalmodelingforthermalperformanceaugmentationofnanofluidinsolarflatplatecollectorequippedwithtwistedtape AT mohsensheikholeslami numericalmodelingforthermalperformanceaugmentationofnanofluidinsolarflatplatecollectorequippedwithtwistedtape |