Numerical Analysis of Heat Transfer Performances of Ionic Liquid and Ionanofluids with Temperature-Dependent Thermophysical Properties
The heat transfer performances of ionic liquids [C<sub>4</sub>mpyrr][NTf<sub>2</sub>] and ionanofluids with Al<sub>2</sub>O<sub>3</sub> nanoparticles under a laminar flow regime, and with constant heat flux on the tube wall is numerically modeled and a...
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MDPI AG
2021-12-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/24/8420 |
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| author | Amra Hasečić Jaber Hmoud Almutairi Siniša Bikić Ejub Džaferović |
| author_facet | Amra Hasečić Jaber Hmoud Almutairi Siniša Bikić Ejub Džaferović |
| author_sort | Amra Hasečić |
| collection | DOAJ |
| description | The heat transfer performances of ionic liquids [C<sub>4</sub>mpyrr][NTf<sub>2</sub>] and ionanofluids with Al<sub>2</sub>O<sub>3</sub> nanoparticles under a laminar flow regime, and with constant heat flux on the tube wall is numerically modeled and analyzed for three values of initial/inlet temperature and for two Reynolds numbers. Heat transfer characteristics were considered by analyzing the temperature distribution along the upper wall, as well as by analyzing the Nusselt number and heat transfer coefficient. The results obtained numerically were validated using Shah’s equation for ionic liquid. Thermophysical properties were temperature-dependent, and obtained by curve-fitting the experimental values of the thermophysical properties. Furthermore, the same set of results was calculated for the ionic liquid and ionanofluids with constant thermophysical properties. It is concluded that the assumption that thermophysical properties are constant has a significant influence on the heat transfer performance parameters of both ionic liquid and ionanofluids, and therefore such assumptions should not be made in research. |
| first_indexed | 2024-03-10T04:13:31Z |
| format | Article |
| id | doaj.art-e2138b6417ca435ea26e19b7bf16dae4 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T04:13:31Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-e2138b6417ca435ea26e19b7bf16dae42023-11-23T08:07:03ZengMDPI AGEnergies1996-10732021-12-011424842010.3390/en14248420Numerical Analysis of Heat Transfer Performances of Ionic Liquid and Ionanofluids with Temperature-Dependent Thermophysical PropertiesAmra Hasečić0Jaber Hmoud Almutairi1Siniša Bikić2Ejub Džaferović3Faculty of Mechanical Engineering, University of Sarajevo, 71000 Sarajevo, Bosnia and HerzegovinaThe Public Authority for Applied Education and Training, College of Technological Studies, Shuwaikh 70654, KuwaitFaculty of Technical Sciences, University of Novi Sad, 21000 Novi Sad, SerbiaFaculty of Mechanical Engineering, University of Sarajevo, 71000 Sarajevo, Bosnia and HerzegovinaThe heat transfer performances of ionic liquids [C<sub>4</sub>mpyrr][NTf<sub>2</sub>] and ionanofluids with Al<sub>2</sub>O<sub>3</sub> nanoparticles under a laminar flow regime, and with constant heat flux on the tube wall is numerically modeled and analyzed for three values of initial/inlet temperature and for two Reynolds numbers. Heat transfer characteristics were considered by analyzing the temperature distribution along the upper wall, as well as by analyzing the Nusselt number and heat transfer coefficient. The results obtained numerically were validated using Shah’s equation for ionic liquid. Thermophysical properties were temperature-dependent, and obtained by curve-fitting the experimental values of the thermophysical properties. Furthermore, the same set of results was calculated for the ionic liquid and ionanofluids with constant thermophysical properties. It is concluded that the assumption that thermophysical properties are constant has a significant influence on the heat transfer performance parameters of both ionic liquid and ionanofluids, and therefore such assumptions should not be made in research.https://www.mdpi.com/1996-1073/14/24/8420ionanofluidscomputational fluid dynamicsheat transferNusselt numbertemperature-dependent properties |
| spellingShingle | Amra Hasečić Jaber Hmoud Almutairi Siniša Bikić Ejub Džaferović Numerical Analysis of Heat Transfer Performances of Ionic Liquid and Ionanofluids with Temperature-Dependent Thermophysical Properties Energies ionanofluids computational fluid dynamics heat transfer Nusselt number temperature-dependent properties |
| title | Numerical Analysis of Heat Transfer Performances of Ionic Liquid and Ionanofluids with Temperature-Dependent Thermophysical Properties |
| title_full | Numerical Analysis of Heat Transfer Performances of Ionic Liquid and Ionanofluids with Temperature-Dependent Thermophysical Properties |
| title_fullStr | Numerical Analysis of Heat Transfer Performances of Ionic Liquid and Ionanofluids with Temperature-Dependent Thermophysical Properties |
| title_full_unstemmed | Numerical Analysis of Heat Transfer Performances of Ionic Liquid and Ionanofluids with Temperature-Dependent Thermophysical Properties |
| title_short | Numerical Analysis of Heat Transfer Performances of Ionic Liquid and Ionanofluids with Temperature-Dependent Thermophysical Properties |
| title_sort | numerical analysis of heat transfer performances of ionic liquid and ionanofluids with temperature dependent thermophysical properties |
| topic | ionanofluids computational fluid dynamics heat transfer Nusselt number temperature-dependent properties |
| url | https://www.mdpi.com/1996-1073/14/24/8420 |
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