Amelioration of pool boiling thermal performance in case of using a new hybrid nanofluid

Kamel, Mohammed Saad; Lezsovits, Ferenc; Abdollahi, Ali; Izadi, Mohsen

doi:10.1016/j.csite.2021.100872

Cited by 40 publications

(16 citation statements)

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“…There are several reasons to cite behind such occurrences. First, the volume concentration range used by Kamel et al [ 62 , 63 ] is much less than that in our study, although they used nanoparticles i.e., MgO and hybrid Al 2 O 3 -CeO 2 , which have much higher thermal conductivities than silica nanoparticles. In addition, there might be a deposition of nanoparticles on the heater surface, hindering heat transfer.…”

Section: Resultsmentioning

confidence: 76%

“…However, in order to evaluate the boiling performance of silica nanofluids over a flat stainless steel surface, the PBHTC ratio and CHF ratio are compared with the published literature. The PBHTC ratio is compared with the experimental results of Kamel et al [ 62 , 63 ] and Abdollahi et al [ 64 ] The CHF ratio is compared with the same predicted by the Kandikar model [ 65 ] and Zuber models [ 66 ], and furthermore, it is compared with the experimental data presented by Hu et al [ 42 ] in Figure 17 . In Figure 17 a, the PBHTC ratio is better than the same obtained by Kamel et al [ 62 , 63 ], but it is lower than the PBHTC ratio reported by Abdollahi et al [ 64 ].…”

Section: Resultsmentioning

confidence: 99%

“…The PBHTC ratio is compared with the experimental results of Kamel et al [ 62 , 63 ] and Abdollahi et al [ 64 ] The CHF ratio is compared with the same predicted by the Kandikar model [ 65 ] and Zuber models [ 66 ], and furthermore, it is compared with the experimental data presented by Hu et al [ 42 ] in Figure 17 . In Figure 17 a, the PBHTC ratio is better than the same obtained by Kamel et al [ 62 , 63 ], but it is lower than the PBHTC ratio reported by Abdollahi et al [ 64 ]. There are several reasons to cite behind such occurrences.…”

Section: Resultsmentioning

confidence: 99%

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Pool Boiling Amelioration by Aqueous Dispersion of Silica Nanoparticles

et al. 2021

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Non-metallic oxide nanofluids have recently attracted interest in pool boiling heat transfer (PBHT) studies. Research work on carbon and silica-based nanofluids is now being reported frequently by scholars. The majority of these research studies showed improvement in PBHT performance. The present study reports an investigation on the PBHT characteristics and performance of water-based silica nanofluids in the nucleate boiling region. Sonication-aided stable silica nanofluids with 0.0001, 0.001, 0.01, and 0.1 particle concentrations were prepared. The stability of nanofluids was detected and confirmed via visible light absorbance and zeta potential analyses. The PBHT performance of nanofluids was examined in a customized boiling pool with a flat heating surface. The boiling characteristics, pool boiling heat transfer coefficient (PBHTC), and critical heat flux (CHF) were analyzed. The effects of surface wettability, contact angle, and surface roughness on heat transfer performance were investigated. Bubble diameter and bubble departure frequency were estimated using experimental results. PBHTC and CHF of water have shown an increase due to the nanoparticle inclusion, where they have reached a maximum improvement of ≈1.33 times over that of the base fluid. The surface wettability of nanofluids was also enhanced due to a decrease in boiling surface contact angle from 74.1° to 48.5°. The roughness of the boiling surface was reduced up to 1.5 times compared to the base fluid, which was due to the nanoparticle deposition on the boiling surface. Such deposition reduces the active nucleation sites and increases the thermal resistance between the boiling surface and bulk fluid layer. The presence of the dispersed nanoparticles caused a lower bubble departure frequency by 2.17% and an increase in bubble diameter by 4.48%, which vigorously affects the pool boiling performance.

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Section: Resultsmentioning

confidence: 76%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Pool Boiling Amelioration by Aqueous Dispersion of Silica Nanoparticles

et al. 2021

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“… Schematic picture of the pool boiling device [ 19 ], reprinted from Elsevier with the Creative Commons CC-BY license. …”

Section: Figurementioning

confidence: 99%

“…The PBHTC of the nanofluid at 1.6 vol% was enhanced to 22% in comparison to that value of the base fluid. Kamel et al [ 19 ] investigated the improvement of pool boiling heat transfer coefficient PBHTC using Al 2 O 3 and CeO 2 hybrid nanofluids based deionized water at atmospheric condition. Their heater geometry was horizontal typical copper tube which was fixed inside pool of working fluids that were tested to this purpose.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Halloysite Nanofluids in Pool Boiling Heat Transfer

Baqer

Kamel

et al. 2022

Molecules

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Halloysite nanotube (HNT) which is cheap, natural, and easily accessible 1D clay, can be used in many applications, particularly heat transfer enhancement. The aim of this research is to study experimentally the pool boiling heat transfer (PBHT) performance of novel halloysite nanofluids at atmospheric pressure condition from typical horizontal heater. The nanofluids are prepared from halloysite nanotubes (HNTs) nanomaterials-based deionized water (DI water) with the presence of sodium hydroxide (NaOH) solution to control pH = 12 to obtain stable nanofluid. The nanofluids were prepared with dilute volume concentrations of 0.01–0.5 vol%. The performance of PBHT is studied via pool boiling curve and pool boiling heat transfer coefficient (PBHTC) from the typical heater which is the copper horizontal tube with a thickness of 1 mm and a diameter of 22 mm. The temperatures of the heated tube surface are measured to obtain the PBHTC. The results show an improvement of PBHTC for halloysite nanofluids compared to the base fluid. At 0.05 vol% concentration, HNT nanofluid has the best enhancement of 5.8% at moderate heat flux (HF). This indicates that HNT is a potential material in heat transfer applications.

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