Experimental investigation for a hybrid aluminum oxide nanofluid-phase change material photovoltaic thermal system based on outdoor test conditions

Emara, Kareem; Aliwa, Hossam; Abdellatif, Osama E.; El-Hameed, H. M. Abd

doi:10.1016/j.est.2022.104261

Cited by 22 publications

(4 citation statements)

References 17 publications

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“…According to the experimental data, the useful rate of heat gained is higher for AS-ZnO/α-Fe 2 O 3 nanofluid-PCM (47 kJ/min) than for the solo PW-PCM system (8 kJ/min). According to this comparison, it is notable that the suggestive greater heat rate gained by the ZnO/α-Fe 2 O 3 nanofluid-PCM system is linked to the increase in the heat transfer as a result of higher thermal conductivity for the conjugated PW and AS-ZnO/α-Fe 2 O 3 system [35].…”

Section: Overall Heat and System Performancementioning

confidence: 92%

Thermal Energy Storage Using Hybrid Nanofluid Phase Change Material (PCM) Based on Waste Sludge Incorp Rated ZnO/α-Fe2O3

Hassan,

Tony,

Awad

2024

Nanomaterials

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Renewable solar energy storage facilities are attracting scientists’ attention since they can overcome the key issues affecting the shortage of energy. A nanofluid phase change material (PCM) is introduced as a new sort of PCM is settled by suspending small proportions of nanoparticles in melting paraffin. ZnO/α-Fe2O3 nanocrystals were prepared by a simple co-precipitation route and ultrasonically dispersed in the paraffin to be a nanofluid-PCM. The behaviors of the ZnO/α-Fe2O3 nanocrystals were verified by X-ray diffraction (XRD) analysis, and the average particle size and the morphology of the nanoparticles were explored by transmission electron microscopy (TEM). For the object of industrial ecology concept, aluminum-based waste derived from water-works plants alum sludge (AS) is dried and augmented with the ZnO/α-Fe2O3 nanocrystals as a source of multimetals such as aluminum to the composite, and it is named AS-ZnO/α-Fe2O3. The melting and freezing cycles were checked to evaluate the PCM at different weight proportions of AS-ZnO/α-Fe2O3 nanocrystals, which confirmed that their presence enhanced the heat transfer rate of paraffin. The nanofluids with AS-ZnO/α-Fe2O3 nanoparticles revealed good stability in melting paraffin. Additionally, the melting and freezing cycles of nanofluid-PCM (PCM- ZnO/α-Fe2O3 nanoparticles) were significantly superior upon supplementing ZnO/α-Fe2O3 nanoparticles. Nanofluid-PCM contained the AS-ZnO/α-Fe2O3 nanocrystals in the range of 0.25, 0.5, 1.0, and 1.5 wt%. The results showed that 1.0 wt% AS-ZnO/α-Fe2O3 nanocrystals contained in the nanofluid-PCM could enhance the performance with 93% with a heat gained reached 47 kJ.

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Section: Overall Heat and System Performancementioning

confidence: 92%

Thermal Energy Storage Using Hybrid Nanofluid Phase Change Material (PCM) Based on Waste Sludge Incorp Rated ZnO/α-Fe2O3

Hassan,

Tony,

Awad

2024

Nanomaterials

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“…Recently, Al2O3 and TiO2 nanoparticles combined with PCM were studied in the year 2022. Al2O3 nanoparticles were found to enhance system performance more effectively than TiO2 nanoparticles [9].…”

Section: Introductionmentioning

confidence: 93%

The Modification of Thermal Conductivity of Phase Change Material Using Nano Metal-Oxide Particles

Phukaokaew,

Suksri,

Wongwuttanasatian

2024

MSF

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The phase change materials (PCM) based cooling system have gained recent popularity with PV module temperature (TPV) reduction. PCM is an effective thermal energy storage material with the activation of latent heat capacity. Its low heat conductivity has been discovered in several studies. In this study, PCM is chosen to mix with nanoparticles to enhance its thermal conductivity and performance. For an ambient temperature of 38, it is suggested that the melting temperature (Tmelt) of PCM should be between 41 and 44 °C. Nanoparticle composited PCM (nc-PCM) are generated by mixing lauric acid (LA) with three different types of nanoparticles, including aluminum oxide (Al2O3), copper oxide (CuO), and magnesium oxide (MgO) in the following proportions: 100:0, 99:1, 98:2, 94:6, 92:8 and 90:10. It has been shown that the melting points (Tmelt) of the studied nc-PCMs are between 41.18 and 42.47 °C and thermal conductivity increases. According to the findings, the best balance between latent heat of fusion and thermal conductivity should be at 6% nanoparticle. Finally, it is expected that employing these three nc-PCM to reduce the PV module's temperature will enhance PV efficiency.

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“…Using mixed cooling and heat storage systems, a hybrid method is created to maximize the energy derived from sunlight [44]. The suggested system combines Nanofluids as an operational fluid as well as a PCM to heat storage by a small device.…”

Section: Active Coolingmentioning

confidence: 99%

Passive and Active Techniques for Cooling Photovoltaic Cell using PCM: An Investigation of Recent Advances

Mohammed J. Mohammed,

Wissam Hashim Khalil,

Anas Bouguecha

et al. 2024

ARFMTS

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Photovoltaic (PV) technology is one of many renewable energy sources, which converts solar energy directly received into electricity. In recent years, PV has advanced quickly as researchers try to make it more effective. 80% of the solar radiation that hits PV cells is absorbed, but only 12–18% of that energy is converted into electricity, with a maximum conversion rate of 24%. This indicates that a significant amount of sunlight is lost irretrievably. when a significant portion of the solar energy that is absorbed but not used by the photovoltaic process is converted to heat, which causes PV cells' operating temperature to increase above their design temperature, Consequently, the cell's effectiveness declines as a result of this increase. The crystalline silicon-based PV cells’ efficiency drops by 0.5% for each Celsius increase in temperature of operating. When operating temperature of cell exceeds design temperature, open-circuit voltage decreases significantly while the closed-circuit current slightly increases. Research has shown that PCMs can be applied in a variety of ways to enhance performance of PV cells, including as a coating applied directly onto the surface of the modules, as a heat exchanger in contact with module's back, or as an integrated component within the module itself. One recent advancement in the area of PCM-based cooling of PV modules is the development of hybrid cooling systems that combine PCMs with other cooling methods, such as air or water cooling. These hybrid systems have been shown to significantly improve the temperature stability and efficiency of PV modules compared to single PCM-based systems. PCMs have unique thermal properties that make them suitable for use in cooling systems because they can store and release thermal energy when phase transitions occur due to their high latent heat capacities. Recommendations for the use of phase change materials in Photovoltaic cooling, continue to research and develop new phase change material-based cooling systems that are more stable, have higher thermal conductivity and are effective in a wider range of temperatures.

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Experimental investigation for a hybrid aluminum oxide nanofluid-phase change material photovoltaic thermal system based on outdoor test conditions

Cited by 22 publications

References 17 publications

Thermal Energy Storage Using Hybrid Nanofluid Phase Change Material (PCM) Based on Waste Sludge Incorp Rated ZnO/α-Fe2O3

Thermal Energy Storage Using Hybrid Nanofluid Phase Change Material (PCM) Based on Waste Sludge Incorp Rated ZnO/α-Fe2O3

The Modification of Thermal Conductivity of Phase Change Material Using Nano Metal-Oxide Particles

Passive and Active Techniques for Cooling Photovoltaic Cell using PCM: An Investigation of Recent Advances

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