Second law analysis of nanofuid laminar flow in a counter-flow heat exchanger
In this paper the results of numerical simulations for heat transfer of a nanofluid flow inside a counter flow heat exchanger is presented. Effects of addition oftheAl2O3 nanoparticles on the entropy generation ofthesystem are investigated. Single fluid model is used for simulation of the nanofluid...
| Main Authors: | , |
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| Format: | Article |
| Language: | fas |
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Semnan University
2015-08-01
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| Series: | مجله مدل سازی در مهندسی |
| Subjects: | |
| Online Access: | https://modelling.semnan.ac.ir/article_1726_e62dbb84b726e500987b895d7722b9d8.pdf |
| _version_ | 1797296623670263808 |
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| author | Kamyar Kamani Roohollah Rafee |
| author_facet | Kamyar Kamani Roohollah Rafee |
| author_sort | Kamyar Kamani |
| collection | DOAJ |
| description | In this paper the results of numerical simulations for heat transfer of a nanofluid flow inside a counter flow heat exchanger is presented. Effects of addition oftheAl2O3 nanoparticles on the entropy generation ofthesystem are investigated. Single fluid model is used for simulation of the nanofluid flow. Analytical and experimental formulations are used for density, specific heat, viscosity and conductivity of nanofluid. Finite volume method (FVM) has been used for numrerical simulation and SIMPLE algorithm is applied for pressure velocity coupling. It is found that adding nano particles in annulus, causes a little incerement in entropy generation which can be overlooked. On the other hand, the increasing of volume fraction of nanoparticles leads to ascend heat transfer coefficient (U ) and total heat transfer (Q) significantly, and it results in decreased entropy number (Ns). |
| first_indexed | 2024-03-07T22:07:27Z |
| format | Article |
| id | doaj.art-a83a772e175040d1a7d36ec5f1faa701 |
| institution | Directory Open Access Journal |
| issn | 2008-4854 2783-2538 |
| language | fas |
| last_indexed | 2024-03-07T22:07:27Z |
| publishDate | 2015-08-01 |
| publisher | Semnan University |
| record_format | Article |
| series | مجله مدل سازی در مهندسی |
| spelling | doaj.art-a83a772e175040d1a7d36ec5f1faa7012024-02-23T18:59:56ZfasSemnan Universityمجله مدل سازی در مهندسی2008-48542783-25382015-08-011341475710.22075/jme.2017.17261726Second law analysis of nanofuid laminar flow in a counter-flow heat exchangerKamyar Kamani0Roohollah Rafee1دانشگاه سمناندانشگاه سمنانIn this paper the results of numerical simulations for heat transfer of a nanofluid flow inside a counter flow heat exchanger is presented. Effects of addition oftheAl2O3 nanoparticles on the entropy generation ofthesystem are investigated. Single fluid model is used for simulation of the nanofluid flow. Analytical and experimental formulations are used for density, specific heat, viscosity and conductivity of nanofluid. Finite volume method (FVM) has been used for numrerical simulation and SIMPLE algorithm is applied for pressure velocity coupling. It is found that adding nano particles in annulus, causes a little incerement in entropy generation which can be overlooked. On the other hand, the increasing of volume fraction of nanoparticles leads to ascend heat transfer coefficient (U ) and total heat transfer (Q) significantly, and it results in decreased entropy number (Ns).https://modelling.semnan.ac.ir/article_1726_e62dbb84b726e500987b895d7722b9d8.pdfheat exchangersnanofluidentropy generation numberlaminar flow |
| spellingShingle | Kamyar Kamani Roohollah Rafee Second law analysis of nanofuid laminar flow in a counter-flow heat exchanger مجله مدل سازی در مهندسی heat exchangers nanofluid entropy generation number laminar flow |
| title | Second law analysis of nanofuid laminar flow in a counter-flow heat exchanger |
| title_full | Second law analysis of nanofuid laminar flow in a counter-flow heat exchanger |
| title_fullStr | Second law analysis of nanofuid laminar flow in a counter-flow heat exchanger |
| title_full_unstemmed | Second law analysis of nanofuid laminar flow in a counter-flow heat exchanger |
| title_short | Second law analysis of nanofuid laminar flow in a counter-flow heat exchanger |
| title_sort | second law analysis of nanofuid laminar flow in a counter flow heat exchanger |
| topic | heat exchangers nanofluid entropy generation number laminar flow |
| url | https://modelling.semnan.ac.ir/article_1726_e62dbb84b726e500987b895d7722b9d8.pdf |
| work_keys_str_mv | AT kamyarkamani secondlawanalysisofnanofuidlaminarflowinacounterflowheatexchanger AT roohollahrafee secondlawanalysisofnanofuidlaminarflowinacounterflowheatexchanger |