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The capric and lauric acid mixture with chemical additives as latent heat storage materials for cooling application

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  • Roxas-Dimaano, M.N
  • Watanabe, T

Abstract

The mixture of capric acid and lauric acid (C-L acid), with the respective mole composition of 65% and 35%, is a potential phase change material (PCM). Its melting point of 18.0°C, however, is considered high for cooling application of thermal energy storage. The thermophysical and heat transfer characteristics of the C-L acid with some organic additives are investigated. Compatibility of C-L acid combinations with additives in different proportions and their melting characteristics are analyzed using the differential scanning calorimeter (DSC). Among the chemical additives, methyl salicylate, eugenol, and cineole presented the relevant melting characteristics. The individual heat transfer behavior and thermal storage performance of 0.1 mole fraction of these additives in the C-L acid mixture are evaluated. The radial and axial temperature distribution during charging and discharging at different concentrations of selected PCM combinations are experimentally determined employing a vertical cylindrical shell and tube heat exchanger. The methyl salicylate in theC-L acid provided the most effective additive in the C-L acid. It demonstrated the least melting band width aimed at lowering the melting point of the C-L acid with the highest heat of fusion value with relatively comparable rate of heat transfer. Furthermore, the thermal performance based on the total amount of transferred energy and their rates, established the PCM’s latent heat storage capability.

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  • Roxas-Dimaano, M.N & Watanabe, T, 2002. "The capric and lauric acid mixture with chemical additives as latent heat storage materials for cooling application," Energy, Elsevier, vol. 27(9), pages 869-888.
    • Handle: RePEc:eee:energy:v:27:y:2002:i:9:p:869-888
    DOI: 10.1016/S0360-5442(02)00024-5
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    References listed on IDEAS

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    1. Dimaano, Maria Natalia R & D. Escoto, Angela, 1998. "Preliminary assessment of a mixture of capric and lauric acids for low-temperature thermal energy storage," Energy, Elsevier, vol. 23(5), pages 421-427.
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    2. Fang, Guiyin & Li, Hui & Chen, Zhi & Liu, Xu, 2010. "Preparation and characterization of stearic acid/expanded graphite composites as thermal energy storage materials," Energy, Elsevier, vol. 35(12), pages 4622-4626.
    3. Song, Guolin & Ma, Sude & Tang, Guoyi & Yin, Zhansong & Wang, Xiaowei, 2010. "Preparation and characterization of flame retardant form-stable phase change materials composed by EPDM, paraffin and nano magnesium hydroxide," Energy, Elsevier, vol. 35(5), pages 2179-2183.
    4. Bi, Yuehong & Guo, Tingwei & Zhu, Tingying & Fan, Shuanshi & Liang, Deqing & Zhang, Liang, 2004. "Influence of volumetric-flow rate in the crystallizer on the gas-hydrate cool-storage process in a new gas-hydrate cool-storage system," Applied Energy, Elsevier, vol. 78(1), pages 111-121, May.
    5. Xinghui Zhang & Qili Shi & Lingai Luo & Yilin Fan & Qian Wang & Guanguan Jia, 2021. "Research Progress on the Phase Change Materials for Cold Thermal Energy Storage," Energies, MDPI, vol. 14(24), pages 1-46, December.
    6. Tunçbilek, Kadir & Sari, Ahmet & Tarhan, Sefa & Ergüneş, Gazanfer & Kaygusuz, Kamil, 2005. "Lauric and palmitic acids eutectic mixture as latent heat storage material for low temperature heating applications," Energy, Elsevier, vol. 30(5), pages 677-692.
    7. Simonsen, Galina & Ravotti, Rebecca & O'Neill, Poppy & Stamatiou, Anastasia, 2023. "Biobased phase change materials in energy storage and thermal management technologies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 184(C).
    8. Huang, Li & Petermann, Marcus & Doetsch, Christian, 2009. "Evaluation of paraffin/water emulsion as a phase change slurry for cooling applications," Energy, Elsevier, vol. 34(9), pages 1145-1155.
    9. Tatsidjodoung, Parfait & Le Pierrès, Nolwenn & Luo, Lingai, 2013. "A review of potential materials for thermal energy storage in building applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 18(C), pages 327-349.
    10. Zhai, X.Q. & Wang, X.L. & Wang, T. & Wang, R.Z., 2013. "A review on phase change cold storage in air-conditioning system: Materials and applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 22(C), pages 108-120.

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