Experimental investigation of enhanced heat transfer of a car radiator using ZnO nanoparticles in H2O–ethylene glycol mixture

Khan, Asifa; Ali, Hafız Muhammad; Nazir, Rabia; Ali, Rashid; Munir, Arjmand; Ahmad, Bilal; Ahmad, Zeeshan

doi:10.1007/s10973-019-08320-7

Cited by 61 publications

(11 citation statements)

References 32 publications

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“…The simultaneous use of both photochemical and photothermal effects helps to achieve reconfigurable, complex shape changes and enables the use of longer, less damaging wavelengths [29]. Interesting nanomaterials are ZnO nanoparticles, which are semiconductors characterized by a wide band-gap [37], emission peaks in both UV and VIS regions [38] and good heat conductivity [39]. They found diverse applications such as optoelectronics devices, photocatalysis, cosmetics and biosensing [38,40,41], and have already been used to increase the thermal conductivity [42] of the polymers, maintaining their mechanical properties at the same time.…”

Section: Introductionmentioning

confidence: 99%

Photo-Responsivity Improvement of Photo-Mobile Polymers Actuators Based on a Novel LCs/Azobenzene Copolymer and ZnO Nanoparticles Network

et al. 2021

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The efficiency of photomobile polymers (PMP) in the conversion of light into mechanical work plays a fundamental role in achieving cutting-edge innovation in the development of novel applications ranging from energy harvesting to sensor approaches. Because of their photochromic properties, azobenzene monomers have been shown to be an efficient material for the preparation of PMPs with appropriate photoresponsivity. Upon integration of the azobenzene molecules as moieties into a polymer, they act as an engine, allowing fast movements of up to 50 Hz. In this work we show a promising approach for integrating ZnO nanoparticles into a liquid crystalline polymer network. The addition of such nanoparticles allows the trapping of incoming light, which acts as diffusive points in the polymer matrix. We characterized the achieved nanocomposite material in terms of thermomechanical and optical properties and finally demonstrated that the doped PMP was better performing that the undoped PMP film.

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Section: Introductionmentioning

confidence: 99%

Photo-Responsivity Improvement of Photo-Mobile Polymers Actuators Based on a Novel LCs/Azobenzene Copolymer and ZnO Nanoparticles Network

et al. 2021

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“…Previous studies showed that the addition of nanoparticles increased pressure drop by 1 to 4% [20,24,53] and increased heat transfer by more than 10%. These findings resulted in optimal performance of the factor, and thus judging heat transfer performance in this study was feasible.…”

Section: Pressure Dropmentioning

confidence: 98%

Hybrid nanocoolant for enhanced heat transfer performance in vehicle cooling system

Xian

Sidik

Saidur

2022

International Communications in Heat and Mass Transfer

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“…These MNFs are widely studied as nano-coolants (in thermal transporting equipment) [ 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 ], nano-lubricants (in moving and sliding parts of automobiles and machinery) [ 27 , 28 , 29 ], nano-based PCM (as energy storage materials) [ 30 , 31 , 32 ], nano-drilling mud [ 33 , 34 , 35 ], nano-CO 2 absorbents [ 36 , 37 , 38 ], nano-water desalination and purification materials [ 39 , 40 , 41 ], nano-cutting fluids (in machining applications) [ 42 , 43 , 44 ], nano-oil recovery materials [ 45 , 46 , 47 ], nano-sensors [ 48 , 49 , 50 ], etc. The passive augmentation of the thermal properties of NFs via HNFs is presently receiving unprecedented attention with an increasing number of publications in this regard [ 13 , 14 , 51 , 52 , 53 , 54 ] but not as that of MNFs.…”

Section: Introductionmentioning

confidence: 99%

Experimental Exploration of Hybrid Nanofluids as Energy-Efficient Fluids in Solar and Thermal Energy Storage Applications

et al. 2023

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In response to the issues of environment, climate, and human health coupled with the growing demand for energy due to increasing population and technological advancement, the concept of sustainable and renewable energy is presently receiving unprecedented attention. To achieve these feats, energy savings and efficiency are crucial in terms of the development of energy-efficient devices and thermal fluids. Limitations associated with the use of conventional thermal fluids led to the discovery of energy-efficient fluids called “nanofluids, which are established to be better than conventional thermal fluids. The current research progress on nanofluids has led to the development of the advanced nanofluids coined “hybrid nanofluids” (HNFs) found to possess superior thermal-optical properties than conventional thermal fluids and nanofluids. This paper experimentally explored the published works on the application of HNFs as thermal transport media in solar energy collectors and thermal energy storage. The performance of hybrid nano-coolants and nano-thermal energy storage materials has been critically reviewed based on the stability, types of hybrid nanoparticles (HNPs) and mixing ratios, types of base fluids, nano-size of HNPs, thermal and optical properties, flow, photothermal property, functionalization of HNPs, magnetic field intensity, and orientation, and φ, subject to solar and thermal energy storage applications. Various HNFs engaged in different applications were observed to save energy and increase efficiency. The HNF-based media performed better than the mono nanofluid counterparts with complementary performance when the mixing ratios were optimized. In line with these applications, further experimental studies coupled with the influence of magnetic and electric fields on their performances were research gaps to be filled in the future. Green HNPs and base fluids are future biomaterials for HNF formulation to provide sustainable, low-cost, and efficient thermal transport and energy storage media.

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Experimental investigation of enhanced heat transfer of a car radiator using ZnO nanoparticles in H2O–ethylene glycol mixture

Cited by 61 publications

References 32 publications

Photo-Responsivity Improvement of Photo-Mobile Polymers Actuators Based on a Novel LCs/Azobenzene Copolymer and ZnO Nanoparticles Network

Photo-Responsivity Improvement of Photo-Mobile Polymers Actuators Based on a Novel LCs/Azobenzene Copolymer and ZnO Nanoparticles Network

Hybrid nanocoolant for enhanced heat transfer performance in vehicle cooling system

Experimental Exploration of Hybrid Nanofluids as Energy-Efficient Fluids in Solar and Thermal Energy Storage Applications

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