A Novel Technique for Experimental Thermophysical Characterization of Phase-Change Materials

Younsi, Zohir; Zalewski, Laurent; Lassue, Stéphane; Rousse, Daniel R.; Joulin, Annabelle

doi:10.1007/s10765-010-0900-z

Cited by 33 publications

(15 citation statements)

References 24 publications

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“…5). An imposed temperature change on each face of the sample is set and simultaneous measurements of the temperature and exchanged heat flux variations during heating and cooling processes allow the determination of the thermo-physical properties of the sample, namely the thermal conductivity λ and the specific heat capacity cp (Younsi et al 2011). The heat flux and the temperature on both sides of the sample are measured simultaneously.…”

Section: Experimental Setup and Samplesmentioning

confidence: 99%

Experimental and Numerical Thermal Assessment of Lebanese Traditional Hollow Blocks

et al. 2020

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Hollow-core concrete blocks constitute the main method of construction for vertical walls in Lebanon where almost all walls are masonry and use the same block shape. The detailed investigation of the main parameters involved in the heat transfer in these blocks is thus of great importance for analyzing and understanding them and providing recommendations for their improvement.This paper offers an experimental and numerical analysis of heat performance the Lebanese concrete hollow block. After validating the numerical model by comparing it to experimental results, a deep and detailed analysis is done for understanding the complexity of heat transfer phenomena inside the block. Then a parametric study is performed to understand the effect of various parameters on the overall thermal resistance of the block, these parameters include the concrete solid mixture, the cavities infill material, and the geometry configuration of the block.

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Section: Experimental Setup and Samplesmentioning

confidence: 99%

Experimental and Numerical Thermal Assessment of Lebanese Traditional Hollow Blocks

et al. 2020

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“…6(b) presents the temporal variation of total (sensible and latent) and latent energy stored in the system during charge and discharge processes for various capsule radii. The total energy stored in the system is calculated using Equation (10). At a given time, the total energy stored in the tank varies according to the particle size.…”

Section: Effect Of Capsule Sizementioning

confidence: 99%

“…Hence, several authors have been focused on the use of phase change materials for thermal energy storage. Experimental and numerical studies have been conducted to characterize the PCMs [10,11]. Various studies on the latent heat storage in packed beds have been found in the literature [12e14].…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of charging and discharging performance of a thermal energy storage system with encapsulated phase change material

Bellan

González-Aguilar

Romero

et al. 2014

Applied Thermal Engineering

106

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“…Vivekanandan et al [10] conducted analysis of using ANSYS on temperature distribution. Younsi et al [11] manufactured a rectangular at the boundaries of the material in the direction of the fluxes. He highlights the influence of supercooling on the release and rate of release of the heat.…”

Section: Literature Reviewmentioning

confidence: 99%

Calorimetric investigation of magnesium nitrate hexahydrate and sodium thiosulphate pentahydrate as salt mixture encapsulated materials for thermal energy storage

Rajamani¹,

Balasubramaniam²,

Radhakrishnan³

2020

THERM SCI

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Original scientific paper https://doi.org/10.2298/TSCI190602456RThe use of magnesium nitrate hexahydrate and sodium thiosulphate pentahydrate salt composite as an encapsulated phase change material in solar water heater storage unit for thermal energy storage was experimentally tested and investigated in this research study. A differential scanning calorimetry is performed to determine the properties such as melting temperature, specific heat capacity, and latent heat of the selected mixtures for the proportion 70:30 and 80:20 by weight. For the experimentation, these two samples are stored separately in the aluminum canisters and filled in storage tank to avoid the heat loss directly. The thermal performance of the solar water heater at different zones on collector with and without using encapsulated phase change material in storage tank was tested experimentally. Maximum temperature achieved in solar water collector was 50 °C at midpoint and 46 °C at outlet of the tank. It is found that even after late evenings 18.00 IST, the average storage tank temperature with phase change material was found to be nearly 2.6 to 3.2 times greater than conventional solar water heater and the average temperature of phase change material is 42 °C. The test results shows that sample B 80:20 will produces higher amount of hot water and stores the maximum heat compared to sample A 70:30. The results demonstrate that this encapsulated phase change material cylinder stores higher latent heat of fusion and, it can also be used for indirect solar cooking and other low temperature application even at late evenings.

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A Novel Technique for Experimental Thermophysical Characterization of Phase-Change Materials

Cited by 33 publications

References 24 publications

Experimental and Numerical Thermal Assessment of Lebanese Traditional Hollow Blocks

Experimental and Numerical Thermal Assessment of Lebanese Traditional Hollow Blocks

Numerical analysis of charging and discharging performance of a thermal energy storage system with encapsulated phase change material

Calorimetric investigation of magnesium nitrate hexahydrate and sodium thiosulphate pentahydrate as salt mixture encapsulated materials for thermal energy storage

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