Experimental assessment on thermal storage performance of beeswax in a helical tube embedded storage unit

Dinker, Abhay; Agarwal, Madhu; Agarwal, Ghanshyam Das

doi:10.1016/j.applthermaleng.2016.09.128

Cited by 37 publications

(4 citation statements)

References 66 publications

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“…Although beeswax samples can present DSC differences depending on the origin of the wax [18], they have a single endothermic peak with melting point above 50°C [19,20] and there are no modifications in the DSC curve after 50 heating cycles [21]. However, the…”

Section: Wax Characteristicsmentioning

confidence: 99%

Thermal Behavior of Waxes and Its Correlation with Mascara Stability Tests: A DSC Study

Beltran¹,

García²

2023

Cosmetic Products and Industry - New Advances and Applications

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In this work, eight commercial eyelashes mascaras were stored during 15 days at 50°C and a correlation between visually perceived separations over time and the thermal behavior of the waxes present within each product was observed. It was found that 3 of the 8 studied mascaras, displayed noticeable separations which agreed with both changes in their DSC curves and the presence of 2 heat-sensitive waxes in their formula. Finally, it is suggested that the addition of heat-sensitive wax mixtures into a formula should be discarded in order to avoid visual phase-separations and produce thermally stable mascaras that offer the product experience designed for users.

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Section: Wax Characteristicsmentioning

confidence: 99%

Thermal Behavior of Waxes and Its Correlation with Mascara Stability Tests: A DSC Study

Beltran¹,

García²

2023

Cosmetic Products and Industry - New Advances and Applications

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“…Fatty acid (capric and oleic acid) mixtures were investigated by Mert et al 10 and Xandri et al 11 synthesized nine monoamides from carboxylic acid (C8 to C18) and analyzed the enthalpy ranges. Beeswax was characterized by Dinker et al 12 as a BPCM for LHTES systems such as temperature‐controlled buildings and solar water and air heaters. Palmitic acid (PA) and nano cupric oxide were studied by Kanchipuram and Kalaiselvam 13 .…”

Section: Introductionmentioning

confidence: 99%

Thermal characterization of phase‐changing materials as stabilized thermal energy storage materials in impregnated wood

Can

2022

Energy Storage

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In this study, a palmitic acid-shellac (PA/Sh) mixture was impregnated into spruce wood. Subsequently, the properties of the modified wood were investigated by thermal gravimetric analysis, differential scanning calorimetry, Fourier-transform infrared (FT-IR) spectroscopy, and scanning electron microscopy (SEM). After the impregnation, 10% to 25% weight gains were obtained in the samples. The FT-IR result demonstrated the physical composition of the PA/Sh mixture. The modified wood samples PA, PASh2, and PASh3 had phase transition temperatures of 59.33 C, 58.37 C, and 58.76 C, and highlatent heat of 27.54, 10.73, and 14.73 J/g, respectively. The modified wood exhibited high thermal stability because the working temperature was much lower than the decomposition temperature. The SEM analysis showed that the wood microscale pores were filled with PA/Sh. The results obtained determined that the property of storing and releasing solar thermal energy of the modified wood rendered it suitable for practical applications.

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“…The simulated results corresponded with the experimental data and showed that heat transfer temperature difference between PCM and HTF has a great influence on the performance of the LHTES. Abhay et al 30 studied a natural beeswax PCM for low‐temperature thermal storage in rectangular shell and tube type LHTES under different flow rates of HTF (0.25‐1 LPM) and inlet temperatures (60°C, 70°C and 80°C). Increase in inlet fluid temperature from 60°C to 80°C reduced charging time from 2115 to 1390 minutes.…”

Section: Introductionmentioning

confidence: 99%

Performance investigation of shell and helical tube heat energy storage system with graphene dispersed erythritol PCM

Mayilvelnathan¹,

2020

Energy Storage

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Experimental investigation on the thermal performance of a shell and helical tube latent heat thermal energy storage system for medium temperature applications is reported in the article. Commercial grade erythritol having a melting temperature of 120 C was employed as the phase change material (PCM). The thermal conductivity of the erythritol had been usually very low (0.73 W/mK) and it results in low heat transfer rates during both charging and discharging processes. In the study, an attempt was made, this inherent limitation of erythritol, high thermal conductive graphene nanoparticles, which are dispersed into erythritol matrix, referred to as nanoparticle dispersed phase change material (NDPCM). The effect of the addition of graphene nanoparticles on the performance of the storage system such as heat flow rate, overall heat transfer coefficient, charging and discharging efficiency and effectiveness was evaluated and compared with the storage system with only base erythritol during both energy storage and retrieval processes. The efficiency of the NDPCM system increased to 16.29% during the storage period and 28.48% during the retrieval period compared with the base PCM system. Further, it was observed that the effectiveness is about 14% greater at the beginning of the melting process and about 12% greater at the beginning of the solidification process for NDPCM.

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Experimental assessment on thermal storage performance of beeswax in a helical tube embedded storage unit

Cited by 37 publications

References 66 publications

Thermal Behavior of Waxes and Its Correlation with Mascara Stability Tests: A DSC Study

Thermal Behavior of Waxes and Its Correlation with Mascara Stability Tests: A DSC Study

Thermal characterization of phase‐changing materials as stabilized thermal energy storage materials in impregnated wood

Performance investigation of shell and helical tube heat energy storage system with graphene dispersed erythritol PCM

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