A Modified Carbon Monofilament Effect on Shape Stability, Leakage Reduction, and Thermal Storage Efficiency of Phase Change System Based on Poly(ethylene glycol)

Document Type : Research Paper

Authors

1 Department of Polymer Engineering, Faculty of Chemical Engineering, Tarbiat Modares University, P.O. Box 14115-114, Tehran, Iran

2 PRISM Research Institute, Technological University of the Shannon, N37HD68 Athlone, Ireland

3 Department of Gas and Petroleum, Yasouj University, Gachsaran, Iran

Abstract

Hypothesis: Phase change materials (PCMs) can store latent heat energy during the phase change from solid to liquid. In previous studies, researchers have usually used the microencapsulation method to solve the leakage problem during melting. However, this method has led to issues such as high cost, difficulty of encapsulation, low thermal conductivity, and complexity of product quality control. In this research, to solve the problem of leakage, the method of impregnating PCMs into a porous supporting structure has been used. The porosity of the supporting material allows the phase change material (in liquid state) to flow freely throughout the 3D network and accommodates a greater percentage of PCM. Porous materials prevent the leakage of PCMs due to the improvement of capillary force
Methods: To solve the leakage issue of PEG, as the PCM, carbon monofilaments (CF) were used as a supporting material and adapted to improve the compatibility with PEG. After oxidizing CF by acidic solution, its surface modification was done with toluene di-isocyanate and ethylene glycol at a temperature of 90 ºC. The new phase change system was made by impregnating molten PEG in modified CF with a combination of 3 to 6% by weight at 80°C
Findings: Chemical modification can create various functional groups on the surface of CF and, as a result, better miscibility with PEG. Due to the physical connection between PEG and modified CF, the leakage of the phase change system reached 2.42%, while the enthalpy efficiency of the system decreased by only 15%. On the other hand, the thermal diffusivity of the phase change system containing CF was found as 1.2 ×10-8 m2. s-1. So an integrated and stable system with a thermal energy absorption of about 44% has been created.

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Main Subjects

References

  1. Yang L., Huang J., and Zhou F., Thermophysical Properties and Applications of Nano-Enhanced PCMs: An Update Review, Energy Convers. Manage., 214, 112876, 2020.

.2     Jamshidi H. and Mahdavian A.R., Role of Polymers in Developing Phase Change Materials for Energy Storage: A Review on Encapsulation Methods and Their Applications, Iran. J. Polym. Sci. Technol. (Persian), 33, 179-212, 2020.

  1. Barthwal M., Dhar A., and Powar S., Effect of Nanomaterial Inclusion in Erials for Improving the Thermal Performance of Heat Storage: A Review, ACS Appl. Energy Mater., 4, 7462-7480, 2021.
  2. Lu X., Liang B., Sheng X., Yuan T., and Qu J., Enhanced Thermal Conductivity of Polyurethane/Wood Powder Composite Phase Change Materials via Incorporating Low Loading of Graphene Oxide Nanosheets for Solar Thermal Energy Storage, Sol. Energy Mater. Sol. Cells, 208, 110391, 2020.
  3. Kim A., Wert N.A., Gowd E.B., and Patel R., Recent Progress in PEG-Based Composite Phase Change Materials, Polym. Rev., 63, 1078-1129, 2023.
  4. Yuan K., Shi J., Aftab W., Qin M., Usman A., Zhou F., Lv Y., Gao S., and Zou R., Engineering the Thermal Conductivity of Functional Phase-Change Materials for Heat Energy Conversion, Storage, and Utilization, Adv. Funct. Mater., 30, 1904228, 2020.
  5. Sarı A., Saleh T.A., Hekimoğlu G., Tyagi V., and Sharma R., Microencapsulated Heptadecane with Calcium Carbonate as Thermal Conductivity-Enhanced Phase Change Material for Thermal Energy Storage, J. Molecul. Liq., 328, 115508, 2021.
  6. Abdeali G., Bahramian A.R., and Abdollahi M., Review on Nanostructure Supporting Material Strategies in Shape-Stabilized Phase Change Materials, J. Energy Storage, 29, 101299, 2020.
  7. Feng D., Li P., Feng Y., Yan Y., and Zhang X., Using Mesoporous Carbon to Pack Polyethylene Glycol as a Shape-Stabilized Phase Change Material with Excellent Energy Storage Capacity and Thermal Conductivity, Micropor. Mesopor. Mater., 310, 110631, 2021.
  8. Yang L., Yang J., Tang L.-S., Feng C.-P., Bai L., Bao R.-Y., Liu Z.-Y., Yang M.-B., and Yang W., Hierarchically Porous PVA Aerogel for Leakage-Proof Phase Change Materials with Superior Energy Storage Capacity, Energy Fuels, 34, 2471-2479, 2020.
  9. Cárdenas-Ramírez C., Jaramillo F., and Gómez M., Systematic Review of Encapsulation and Shape-Stabilization of Phase Change Materials, J. Energy Storage, 30, 101495, 2020.
  10. Qin J., Chen Y., Xu C., and Fang G., Synthesis and Thermal Properties of 1-Octadecanol/Nano-TiO2/Carbon Nanofiber Composite Phase Change Materials for Thermal Energy Storage, Mater. Chem. Phys., 272, 125041, 2021.
  11. Guo L., Wang Y., Shi S., Gao Y., Jiang T., Wu X., Kai S., Zhao Y., Yang K., and Li W., High Thermal Conductivity and Low Leakage Phase Change Materials Filled with Three-Dimensional Carbon Fiber Network, Fullerenes, Nanotub. Carbon Nanostruct., 30, 543-552, 2022
  12. Harmen Y., Chhiti Y., M’Hamdi Alaoui F.E., Bentiss F., Jama C., Duquesne S., and Bensitel M., Thermal Performance of PEG-MWCNTs Composites as Shape-Stabilised Phase Change Materials for Thermal Energy Storage, Fullere. Nanotub. Carbon Nanostruct., 29, 732-738. 2021.
  13. Yang W., Lin R., Li X., Li C., Wu Y., Zhang G., Liu X., Li S., and Wang Y., High Thermal Conductive and Anti-Leakage Composite Phase Change Material with Halloysite Nanotube for Battery Thermal Management System, J. Energy Storage, 66, 107372, 2023.
  14. Oliveira Junior M.S.d., Diniz M.F., Dutra R.d.C.L., Massi M., and Otani C., Applicability of FT-IR Techniques and Goniometry on Characterization of Carbon Fiber Surfaces, J. Aerosp. Technol. Manage., 8, 26-32, 2016.
  15. Peng X., Wu Y., and Wei Z., Research Progress on the Surface Modification of Carbon Fiber, RSC Adv., 14, 4064-4043, 2024.
  16. Li C., Wu X., Li S., Yang W., Wu S., Liu X., and Li X., Research on the High Thermal Conductivity Composite Phase Change Materials with Graphite Nanosheets for Battery Thermal Safety, J. Energy Storage, 61, 106718, 2023.
  17. Qanati M.V. and Rasooli A., Functionalization of CNFs via Wet Chemical Oxidation Method in Order to Improve CNFs Adhesion to Matrix of Carbon Composites, Diam. Relat. Mater., 109, 108097, 2020.
  18. An K., Peng S., Yang C., Qing Y., Hu C., Wang L., and Liu C., Covalent Modification of Graphene Oxide by 4,4′-Methylenebis(phenyl isocyanate) to Enhance Corrosion Resistance of Polystyrene Coating, Colloid Polym. Sci., 297, 839-848, 2019.
  19. Wang W., Fu R., Deng Q., Wang X., Wang Y., Zhang Z., and Xian G., Surface Modification of Flax Fibers with Isocyanate and Its Effects on Fiber/Epoxy Interfacial Properties, Fiber. Polym., 21, 2888-2895, 2020.
  20. Sun X., Yi M., Feng B., Liu R., Sun L., Zhai L., Cao H., and Zou C., Shape-Stabilized Composite Phase Change Material PEG@TiO2 through In Situ Encapsulation of PEG into 3D Nanoporous TiO2 for Thermal Energy Storage, Renew. Energy, 170, 27-37, 2021.
  21. Liu Z., Wei H., Tang B., Xu S., and Shufen Z., Novel Light–Driven CF/PEG/SiO2 Composite Phase Change Materials with High Thermal Conductivity, Sol. Energy Mater. Sol. Cells, 174, 538-544, 2018.
  22. Zhang X., Qiao J., Zhang W., Cheng F., Yin Z., Huang Z., and Min X., Thermal Behavior of Composite Phase Change Materials Based on Polyethylene Glycol and Expanded Vermiculite with Modified Porous Carbon Layer, J. Mater. Sci., 53, 13067-13080, 2018.
  23. Lu W.B., Wang C.G., Yuan H., and Hu X.Y., Liquid-Phase Oxidation Modification of Carbon Fiber Surface, Adv. Mater. Res., 430, 2012-2008, 2012.
  24. Meng Y., Zhao Y., Zhang Y., and Tang B., Induced Dipole Force Driven PEG/PPEGMA form-Stable Phase Change Energy Storage Materials with High Latent Heat, Chem. Eng. J., 390, 124618, 2020.
  25. Jiang L., Lei Y., Liu Q., and Lei J., Polyethylene Glycol Based Self-Luminous Phase Change Materials for Both Thermal and Light Energy Storage, Energy, 193, 116802, 2020.
  26. Yan D., Ming W., Liu S., Yin G., Zhang Y., Tang B., and Zhang S., Polyethylene Glycol (PEG)/Silicon Dioxide Grafted Aminopropyl Group and Carboxylic Multi-Walled Carbon Nanotubes (SAM) Composite as Phase Change Material for Light-to-Heat Energy Conversion and Storage, J. Energy Storage, 36, 102428, 2021.
  27. Zhang D., Chen M., Wu S., Liu Q., and Wan J., Preparation of Expanded Graphite/Polyethylene Glycol Composite Phase Change Material for Thermoregulation of Asphalt Binder, Constr. Build. Mater., 169, 513-521, 2018.
  28. Lin F., Zhang X., Liu X., Xu Y., Sun Z., Zhang L., Huang Z., Mi R., and Min X., Polyethylene Glycol/Modified Carbon Foam Composites for Efficient Light-Thermal Conversion and Storage, Polymer, 228, 123894, 2021.
  29. Sheng N., Rao Z., Zhu C., and Habazaki H., Enhanced Thermal Performance of Phase Change Material Stabilized with Textile-Structured Carbon Scaffolds, Sol. Energy Mater. Sol. Cells, 205, 110241, 2020.
  30. Wu X., Shi S., Wang Y., Tang B., Guo L., Gao Y., Jiang T., Yang K., Sun K., and Zhao Y., Polyethylene Glycol–Calcium Chloride Phase Change Materials with High Thermal Conductivity and Excellent Shape Stability by Introducing Three-Dimensional Carbon/Carbon Fiber Felt, ACS Omega, 6, 33033-33045, 2021.
  31. Jiang Z., Ouyang T., Yang Y., Chen L., Fan X., Chen Y., Li W., and Fei Y., Thermal Conductivity Enhancement of Phase Change Materials with Form-Stable Carbon Bonded Carbon Fiber Network, Mater. Des., 143, 177-184, 2018.
  32. Ding Z., He F., Li Y., Jiang Z., Yan H., He R., Fan J., Zhang K., and Yang W., Novel Shape-Stabilized Phase Change Materials Based on Paraffin/EPDM@ Graphene with High Thermal Conductivity and Low Leakage Rate, Energy Fuels, 34, 5024-5031, 2020.
  33. Tian B., Yang W., Luo L., Wang J., Zhang K., Fan J., Wu J., and Xing T., Synergistic Enhancement of Thermal Conductivity for Expanded Graphite and Carbon Fiber in Paraffin/EVA Form-Stable Phase Change Materials, Sol. Energy, 127, 48-55, 2016.
  34. Liao H., Chen W., Liu Y., and Wang Q., A Phase Change Material Encapsulated in a Mechanically Strong Graphene Aerogel with High Thermal Conductivity and Excellent Shape stability, Compos. Sci. Technol., 189, 108010, 2020.
  35. Sundararajan S., Samui A.B., and Kulkarni P.S., Synthesis and Characterization of Poly(ethylene glycol) Acrylate (PEGA) Copolymers for Application as Polymeric Phase Change Materials (PCMs), React. Funct. Polym., 130, 43-50, 2018.
  36. Wang C., Chen K., Huang J., Cai Z., Hu Z., and Wang T., Thermal Behavior of Polyethylene Glycol Based Phase Change Materials for Thermal Energy Storage with Multiwall Carbon Nanotubes Additives, Energy, 180, 873-880, 2019.
  37. Qian Y., Wei P., Jiang P., Li Z., Yan Y., and Liu J., Preparation of a Novel PEG Composite with Halogen-Free Flame Retardant Supporting Matrix for Thermal Energy Storage Application, Appl. Energy, 106, 321-327, 2013.
  38. Dante R., 10-Binders and Organic Materials, Handbook of Friction Materials and Their Applications; Woodhead, Sawston, UK, 135-153, 2016.

 

Iranian Journal of Polymer Science and Technology
Volume 37, Issue 2 - Serial Number 190
July and August 2024
Pages 181-194

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