Experimental study and thermodynamic modeling of solid-liquid equilibrium of binary systems: Dodecane-tetradedcane and tridecane-pentadecane for cryogenic thermal energy storage

Shen, Tongtong; Li, Songlin; Peng, Hao; Ling, Xiang

doi:10.1016/j.fluid.2019.04.023

Cited by 18 publications

(14 citation statements)

References 33 publications

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“…The eutectic temperatures are 246.85 and 257.75 K, respectively. For the C 12 −C 14 , and C 13 − C 15 binary systems, on the basis of our previous experimental data 10 (as shown in Figure 4), the defined minimum melting points are at compositions of 18 wt % C 14 and 10 wt % C 15 with the melting temperatures of 260.45 and 265.55 K. 4.2. Thermodynamic Modeling.…”

Section: Resultsmentioning

confidence: 84%

“…Of note, the investigation related on the experimental measurements of two binary systems of C 12 −C 14 and C 13 −C 15 had been conducted in our previous work. 10 From previous experimental results, the melting temperatures of two binary systems are presented in Table 5. Figures 3 and 4 depict the phase diagrams of the four binary systems.…”

Section: Resultsmentioning

confidence: 99%

“…The melting temperatures of these systems are listed in Table . Of note, the investigation related on the experimental measurements of two binary systems of C 12 –C 14 and C 13 –C 15 had been conducted in our previous work . From previous experimental results, the melting temperatures of two binary systems are presented in Table .…”

Section: Results and Discussionmentioning

confidence: 99%

“…As compared to other potentially latent energy storage candidates, n-alkanes, which will be abbreviated as C n , are the most attractive PCM for cryogenic TES applications. 10 Binary alkane mixtures have been extensively studied as the tunable PCMs because of their substantially scalable temperature range. The purpose of this study was to employ thermodynamic models to binary C n .…”

Section: Introductionmentioning

confidence: 99%

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Experimental Measurements and Thermodynamic Modeling of Melting Temperature of the Binary Systems n-C₁₁H₂₄–n-C₁₄H₃₀, n-C₁₂H₂₆–n-C₁₃H₂₈, n-C₁₂H₂₆–n-C₁₄H₃₀, and n-C₁₃H₂₈–n-C₁₅H₃₂ for Cryogenic Thermal Energy Storage

Shen

Peng

Ling

2019

Ind. Eng. Chem. Res.

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In this study, the phase diagrams for the binary systems of n-C11H24–n-C14H30, n-C12H26–n-C13H28, n-C12H26–n-C14H30, and n-C13H28–n-C15H32 were experimentally investigated to employ potential phase change materials (PCMs) for cryogenic applications. Besides, the phase diagrams were theoretically obtained on the basis of the ideal solubility and UNIFAC models, and the UNIQUAC, Wilson, and NRTL models were applied to build correlations between experimental and predicting values. The results show that the compositions of the eutectic points appear at 10 wt % C14 for the C11–C14 system, 17.8 wt % C13 for the C12–C13 system, 18 wt % C14 for the C12–C14 system, and 10 wt % C15 for the C13–C15 system with eutectic temperatures of 246.85, 257.75, 260.45, and 265.55 K, respectively. Moreover, the melting temperatures calculated using the theoretical models are in good agreement with the experimental results. The average relative deviations for the C11–C14 system and C13–C15 systems are merely 0.3814% and 0.3220%, respectively, by using the NRTL model. Simultaneously, the minimum relative deviations for the C12–C13 and C12–C14 binary systems are 0.3649% for the ideal solubility model and 0.4856% for the UNIFAC model. Finally, upon comparing the predicted results of the studied binary systems using the results of the five models, we find that the UNIFAC model provides the most accurate results for the melting temperatures.

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Section: Resultsmentioning

confidence: 84%

Section: Resultsmentioning

confidence: 99%

Section: Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Experimental Measurements and Thermodynamic Modeling of Melting Temperature of the Binary Systems n-C₁₁H₂₄–n-C₁₄H₃₀, n-C₁₂H₂₆–n-C₁₃H₂₈, n-C₁₂H₂₆–n-C₁₄H₃₀, and n-C₁₃H₂₈–n-C₁₅H₃₂ for Cryogenic Thermal Energy Storage

Shen

Peng

Ling

2019

Ind. Eng. Chem. Res.

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“…Two phase change peaks were seen in both melting and crystallization peaks, attributed to the mutual transformation of the alkane PCM from the ⊍ solid phase to the ⊎ solid phase. 51 The phase change energy storage performance of the porous PVA/phase change microcapsule composites is summarized in Table 3. In order to verify the uniformity of the composite material, ΔH m of three different positions of each sample was measured.…”

Section: Resultsmentioning

confidence: 99%

Simultaneous phase change energy storage and thermoresponsive shape memory properties of porous poly(vinyl alcohol)/phase change microcapsule composites

Shi

Liu

et al. 2021

Polymer International

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Porous poly(vinyl alcohol) (PVA)/phase change microcapsule composites with shape memory properties were prepared by physical foaming, cycles of freezing-thawing and freeze drying. The effects of phase change microcapsules on pore structure, phase change energy storage capacity, thermal stability, crystallinity, mechanical properties, shape memory properties and water absorption and retention of the porous composites were investigated. With an increase of the proportion of phase change microcapsules, the pore density, pore size and water absorption and retention of the porous composite materials were decreased, while the phase change energy storage performance was improved and ΔH m was up to 31.22 J g −1 . The phase change energy storage of the porous composites was stable even after 50 phase transition cycles. Meanwhile, the thermal stability of the porous composites was also not affected by the addition of phase change microcapsules. The entanglement of PVA molecular chains in the porous composites was affected by the microcapsules embedded in the matrix of PVA during freezingthawing cycles, resulting in a change of crystallinity and mechanical properties of the porous composites. The porous composites with phase change energy storage capacity also showed good shape memory performance with shape recovery rate of 100% even after multiple deformation, which was expected to expand the multi-field application of dual-functional materials.

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Di-Alkyl Adipates as New Phase Change Material for Low Temperature Energy Storage

Sequeira,

Nogueira,

Caetano

et al. 2023

Int J Thermophys

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This work is a contribution to the thermal characterization of a selected binary system of two di-n-alkyl adipates that can be used as phase change material for thermal energy storage at low temperatures. The construction of the solid–liquid phase diagram using differential scanning calorimetry (DSC), complemented with Raman Spectroscopy studies for the system composed by diethyl and dibutyl adipates is presented. The solidus and liquidus equilibrium temperatures were determined by DSC for the pure components and 30 binary mixtures at selected molar compositions were used to construct the corresponding solid–liquid phase diagram. The binary system of diethyl and dibutyl adipates presents eutectic behaviour at low temperatures. The eutectic temperature was found at 240.46 K, and the eutectic composition was determined to occur at the molar fraction xdibutyl = 0.46. Additionally, the system shows a polymorphic transition, characteristic of dibutyl adipate, occurring at ca. 238 K, confirmed by optical microscopy. To the best of our knowledge, no reference to the phase diagram of the present system could be found in the literature. Raman spectroscopy was essential to complement the construction of the phase equilibrium diagram, enabling the identification of the solid and liquid phases of the system. Finally, the liquidus curve of the phase diagram was also successfully predicted using a suitable fitting equation, being the root mean square deviation of the data from the correlation equal to 0.54 K. In addition, this fitting operation enabled a correct prediction of the eutectic composition of the system.

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Experimental study and thermodynamic modeling of solid-liquid equilibrium of binary systems: Dodecane-tetradedcane and tridecane-pentadecane for cryogenic thermal energy storage

Cited by 18 publications

References 33 publications

Experimental Measurements and Thermodynamic Modeling of Melting Temperature of the Binary Systems n-C₁₁H₂₄–n-C₁₄H₃₀, n-C₁₂H₂₆–n-C₁₃H₂₈, n-C₁₂H₂₆–n-C₁₄H₃₀, and n-C₁₃H₂₈–n-C₁₅H₃₂ for Cryogenic Thermal Energy Storage

Experimental Measurements and Thermodynamic Modeling of Melting Temperature of the Binary Systems n-C₁₁H₂₄–n-C₁₄H₃₀, n-C₁₂H₂₆–n-C₁₃H₂₈, n-C₁₂H₂₆–n-C₁₄H₃₀, and n-C₁₃H₂₈–n-C₁₅H₃₂ for Cryogenic Thermal Energy Storage

Simultaneous phase change energy storage and thermoresponsive shape memory properties of porous poly(vinyl alcohol)/phase change microcapsule composites

Di-Alkyl Adipates as New Phase Change Material for Low Temperature Energy Storage

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Experimental study and thermodynamic modeling of solid-liquid equilibrium of binary systems: Dodecane-tetradedcane and tridecane-pentadecane for cryogenic thermal energy storage

Cited by 18 publications

References 33 publications

Experimental Measurements and Thermodynamic Modeling of Melting Temperature of the Binary Systems n-C11H24–n-C14H30, n-C12H26–n-C13H28, n-C12H26–n-C14H30, and n-C13H28–n-C15H32 for Cryogenic Thermal Energy Storage

Experimental Measurements and Thermodynamic Modeling of Melting Temperature of the Binary Systems n-C11H24–n-C14H30, n-C12H26–n-C13H28, n-C12H26–n-C14H30, and n-C13H28–n-C15H32 for Cryogenic Thermal Energy Storage

Simultaneous phase change energy storage and thermoresponsive shape memory properties of porous poly(vinyl alcohol)/phase change microcapsule composites

Di-Alkyl Adipates as New Phase Change Material for Low Temperature Energy Storage

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Product

Resources

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Experimental Measurements and Thermodynamic Modeling of Melting Temperature of the Binary Systems n-C₁₁H₂₄–n-C₁₄H₃₀, n-C₁₂H₂₆–n-C₁₃H₂₈, n-C₁₂H₂₆–n-C₁₄H₃₀, and n-C₁₃H₂₈–n-C₁₅H₃₂ for Cryogenic Thermal Energy Storage

Experimental Measurements and Thermodynamic Modeling of Melting Temperature of the Binary Systems n-C₁₁H₂₄–n-C₁₄H₃₀, n-C₁₂H₂₆–n-C₁₃H₂₈, n-C₁₂H₂₆–n-C₁₄H₃₀, and n-C₁₃H₂₈–n-C₁₅H₃₂ for Cryogenic Thermal Energy Storage