Alawi, Omer A. and Mohamed Kamar, Haslinda and Falah, Mayadah W. and Hussein, Omar A. and Abdelrazek, Ali H. and Ahmed, Waqar and Mahmoud Eltaweel, Mahmoud Eltaweel and Homod, Raad Z. and Al-Ansari, Nadhir and Yaseen, Zaher Mundher (2023) Thermohydraulic performance of thermal system integrated with twisted turbulator inserts using ternary hybrid nanofluids. Nanotechnology Reviews, 12 (1). pp. 1-21. ISSN 2191-9089
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Official URL: http://dx.doi.org/10.1515/ntrev-2022-0504
Abstract
Mono, hybrid, and ternary nanofluids were tested inside the plain and twisted-tape pipes using k-omega shear stress transport turbulence models. The Reynolds number was 5,000 ≤ Re ≤ 15,000, and thermophysical properties were calculated under the condition of 303 K. Single nanofluids (Al2O3/distilled water [DW], SiO2/DW, and ZnO/DW), hybrid nanofluids (SiO2 + Al2O3/DW, SiO2 + ZnO/DW, and ZnO + Al2O3/DW) in the mixture ratio of 80:20, and ternary nanofluids (SiO2 + Al2O3 + ZnO/DW) in the mixture ratio of 60:20:20 were estimated in different volumetric concentrations (1, 2, 3, and 4%). The twisted pipe had a higher outlet temperature than the plain pipe, while SiO2/DW had a lower T out value with 310.933 K (plain pipe) and 313.842 K (twisted pipe) at Re = 9,000. The thermal system gained better energy using ZnO/DW with 6178.060 W (plain pipe) and 8426.474 W (twisted pipe). Furthermore, using SiO2/DW at Re = 9,000, heat transfer improved by 18.017% (plain pipe) and 21.007% (twisted pipe). At Re = 900, the pressure in plain and twisted pipes employing SiO2/DW reduced by 167.114 and 166.994%, respectively. In general, the thermohydraulic performance of DW and nanofluids was superior to one. Meanwhile, with Re = 15,000, DW had a higher value of η Thermohydraulic = 1.678.
Item Type: | Article |
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Uncontrolled Keywords: | energy turbulators, heat transfer properties, hydrodynamic performance, ternary hybrid nanofluid, twisted-tape pipes |
Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery |
Divisions: | Mechanical Engineering |
ID Code: | 106025 |
Deposited By: | Yanti Mohd Shah |
Deposited On: | 29 May 2024 06:37 |
Last Modified: | 29 May 2024 06:37 |
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