Improved thermal energy storage behavior of polyethylene glycol-based NEOPCM containing aluminum oxide nanoparticles for solar thermal applications

Ansu, Alok Kumar; Sharma, R. K.; Hagos, Ftwi Yohaness; Tripathi, Dharmendra; Tyagi, V.V.

doi:10.1007/s10973-020-09976-2

Cited by 30 publications

(9 citation statements)

References 48 publications

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“…The diffractograms of CuO NPs as shown in Figure 6 exhibits two peaks at 35 were appeared in composite PCM, which shows that the association of nanoparticles has not affected the crystal formation of binary eutectic PCM. 33 Therefore, the above results further prove the nonexistence of chemical interaction between nanoparticles and eutectic PCM.…”

Section: Xrd Analysissupporting

confidence: 54%

“…Thermal analyses reveal the low phase transition temperature of 33.1 C and latent heat value of 53.9 to 104.4 J/g of nano composite PCM, finds it suitable for building applications. Ansu et al33 prepared a novel nano embedded PCM and investigated the effect of varying mass fraction (1%, 2%, 3%, 4% and 5%) of Al 2 O 3 nanoparticles in Polyethylene glycol (PEG). They noted an increment of 52.09% in thermal conductivity value with 5% dispersion of Al 2 O 3 nanoparticles.…”

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confidence: 99%

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Experimental investigations on the phase change and thermal properties of nano enhanced binary eutectic phase change material of palmitic acid‐stearic acid / CuO nanoparticles for thermal energy storage

Agrawal

Singh

Sharma

2021

Intl J of Energy Research

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A novel nano enhanced binary eutectic phase change material (PCM) of Palmitic acid (64 wt%) and stearic acid (36 wt%) as base PCM and copper oxide nanomaterial in varying mass fractions (0.3%, 0.8%, 1.5% and 3%) as thermal conductive enhancer was prepared using two step method and its heat transfer properties were investigated. Thermal characteristics using DSC technique shows the significant stability with the inclusion of nano particles. The melting latent heat of nano embedded eutectic PCM decreases between 21.6% and 0.74% while no significant change is observed in phase transition temperature.The FTIR and XRD analysis confirm that no chemical reaction occurs but only physical interaction takes place between the eutectic PCM and nanoparticles.The TGA analysis shows that the CuO NPs in the nano enhanced PCM act as supporting material and reveals excellent thermal stability. Thermal conductivity of PA-SA eutectic PCM increases gradually by 19%, 34.23%, 55.24%, and 118.87% for the nano particle mass fraction of 0.3%, 0.8%, 1.5% and 3% respectively. The thermal cycling test after 1000 cycles reveals that the nano enhanced PA-SA eutectic mixture perceives excellent thermal and chemical stability. The findings of experimental study concluded that the prepared nano enhanced PA-SA mixture finds to be the suitable material for moderate temperature energy storage applications.

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Section: Xrd Analysissupporting

confidence: 54%

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confidence: 99%

Experimental investigations on the phase change and thermal properties of nano enhanced binary eutectic phase change material of palmitic acid‐stearic acid / CuO nanoparticles for thermal energy storage

Agrawal

Singh

Sharma

2021

Intl J of Energy Research

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“…19 Also, nanoparticles can play a role of supporting material which contributes to avoid leaking of PCMs in molten state 20 and improves the thermal performances of the composite PCMs. [21][22][23][24] In electrospinning process, nanoparticles are either purchased form markets followed by addition to the spinning solution or formed in situ in presence of polymer and PCM to be employed for electrospinning. Most of reported studies used pre-synthesized nanoparticles and limited researches investigated in situ formation of nanoparticles through electrospinning of form-stable PCM fibrous composite.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, addition of diverse nanoparticles into the form‐stable PCM composite is one favorite option for resolving supercooling phenomenon in organic and inorganic PCMs with regard to affordability, simplicity and availability 19 . Also, nanoparticles can play a role of supporting material which contributes to avoid leaking of PCMs in molten state 20 and improves the thermal performances of the composite PCMs 21–24 . In electrospinning process, nanoparticles are either purchased form markets followed by addition to the spinning solution or formed in situ in presence of polymer and PCM to be employed for electrospinning.…”

Section: Introductionmentioning

confidence: 99%

PCM nanofibrous composites based on PEG/PVA incorporated by TiO₂/Ag nanoparticles for thermal energy management

Salimian

Montazer

Rashidi

et al. 2021

J of Applied Polymer Sci

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Herein, form-stable phase change material fibrous composite containing nanoparticles was prepared via a single-step green approach using singlenozzle electrospinning for the first time. Polyethylene glycol (PEG), polyvinyl alcohol (PVA), and water were used as PCM, polymeric support and safe solvent together with simultaneous formation of nanoparticles. The introduced manner not only is free from applying organic solvents, separate addition, or buying nanoparticles and coaxial electrospinning but also it is easy and costeffective to use for different applications. Thermal energy storage capacity of the fabricated samples reached to 135.88 and 136.27 J/g in melting process for the nanofibers and nanofibers with nanoparticles, respectively, which are mostly higher than the reported works. Meanwhile supercooling temperature was decreased for (50% PVA/50% PEG/0.1% AgNO 3 /1% TiO 2 ) nanofibers compared to the other fabricated composites and the pure PEG. The effects of different weight ratio of polymers in spinning solutions, amount of titanium dioxide nanoparticles and silver nitrate, range of phase change transition and thermal endurance and stability of the samples were further discussed in details. Altogether, this renders a single-step safe route for producing formstable PCM nanofibrous composites and also a broad insight concerning the thermal behavior of such composites for diverse renewable energy applications. K E Y W O R D Selectrospinning, functionalization of polymers, synthesis and processing techniques, thermal properties

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“…[17][18][19] Apart from fatty acids, polyethylene glycols (PEGs) are another class of organic PCMs which offer excellent thermal energy storage properties. [20][21] They are available in various molecular weights and each one of them has a different melting point and latent heat of fusion. This property makes them very attractive to be used as thermal energy storage materials.…”

Section: Introductionmentioning

confidence: 99%

Prediction of Thermal Properties and Reliability Testing of Binary Eutectic Mixture of Polyethylene Glycol 2000 and 10000 as Phase Change Materials

et al. 2020

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This experimental investigation presents the two major aspects of thermal energy storage materials. One is development of eutectic mixtures of polyethylene glycols (PEGs) and another is thermal reliability of them. The commercial grade PEGs with molecular mass 2000 and 10000 were mixed in different mass fractions via facile incorporation method for preparing the eutectic mixtures. The thermal energy storage capacity was measured by using differential scanning calorimeter (DSC) and Fourier transform and infrared spectroscopy (FT‐IR) was adopted to analyse the variation in chemical compositions of eutectics. The eutectics were prepared in the step of 10% mass fraction and characterization show that the mixture of 20% PEG 2000 and 80% PEG 10000 possess the maximum latent heat of fusion, which is 185 kJ/kg. The prepared eutectic mixture was also tested for its durability by in‐house designed thermal cycling tester. The results revealed that this eutectic is able to retain its thermal and chemical properties even after 1500 melting and freezing cycles. The findings of this study show that the prepared binary eutectics are able to be used as potential candidates for passive solar thermal management purposes.

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Improved thermal energy storage behavior of polyethylene glycol-based NEOPCM containing aluminum oxide nanoparticles for solar thermal applications

Cited by 30 publications

References 48 publications

Experimental investigations on the phase change and thermal properties of nano enhanced binary eutectic phase change material of palmitic acid‐stearic acid / CuO nanoparticles for thermal energy storage

Experimental investigations on the phase change and thermal properties of nano enhanced binary eutectic phase change material of palmitic acid‐stearic acid / CuO nanoparticles for thermal energy storage

PCM nanofibrous composites based on PEG/PVA incorporated by TiO₂/Ag nanoparticles for thermal energy management

Prediction of Thermal Properties and Reliability Testing of Binary Eutectic Mixture of Polyethylene Glycol 2000 and 10000 as Phase Change Materials

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Improved thermal energy storage behavior of polyethylene glycol-based NEOPCM containing aluminum oxide nanoparticles for solar thermal applications

Cited by 30 publications

References 48 publications

Experimental investigations on the phase change and thermal properties of nano enhanced binary eutectic phase change material of palmitic acid‐stearic acid / CuO nanoparticles for thermal energy storage

Experimental investigations on the phase change and thermal properties of nano enhanced binary eutectic phase change material of palmitic acid‐stearic acid / CuO nanoparticles for thermal energy storage

PCM nanofibrous composites based on PEG/PVA incorporated by TiO2/Ag nanoparticles for thermal energy management

Prediction of Thermal Properties and Reliability Testing of Binary Eutectic Mixture of Polyethylene Glycol 2000 and 10000 as Phase Change Materials

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Product

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PCM nanofibrous composites based on PEG/PVA incorporated by TiO₂/Ag nanoparticles for thermal energy management