Synthesis and Optimization of GO/PMMA/n-Octadecane Phase Change Nanocapsules Using Response Surface Methodology

Document Type : Research Article

Authors

Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, I.R. IRAN

Abstract

Nano Encapsulated Phase Change Materials (NEPCMs) are a crucial part of solar energy systems due to their high thermal storage density. The particle size of the NEPCMs is especially of great importance due to its effect on heat transfer and long-term use during applications. In this study, nanocapsules containing Phase Change Material (PCM) n-dodecanol as core and polymethyl methacrylate (PMMA) as shell were synthesized by miniemulsion polymerization with Graphene Oxide (GO) nanosheets as an extra protective screen situated at the interface between the core and the shell. The experiments were designed with the Central Composite Design (CCD) of Response Surface Methodology (RSM). The nanocapsules synthesis experiments were conducted as per the statistical design to determine the optimum process conditions. The effect of initiator/Methyl methacrylate(MMA) mass ratio (BPO/MMA wt.%), n-octadecane/MMA mass ratio (PCM/MMA), stabilizer/MMA mass ratio (triton X-100/MMA wt.%), water/MMA mass ratio (H2O/MMA) and GO/MMA ratio on the nanocapsule properties were investigated. The correlation between nanocapsule properties (melting latent heat and average particle size of nanocapsules) and affecting factors were evaluated and verified. The numerical optimization showed that the optimum nanoparticle size (110 nm) and latent heat (148.5 J/kg) can be obtained at H2O/MMA of 11.3 wt%, PCM/MMA mass ratio of 1.88wt%, X-100/MMA of 10.81wt.%, and BPO/MMA of 2.96 wt.% and GO/MMAof 3.79wt%.  The optimized nanocapsules were characterized by Fourier Transform InfraRed (FT-IR) spectroscopy, Transmission Electron Microscope (TEM), Differential Scanning Calorimetry (DSC), ThermoGravimetric Analysis (TGA), and laser particle diameter analyzer. The thermal cycling tests indicate the high thermal resistance of the prepared core-shell system, even after 100 heating/cooling cycles, and have an excellent potential for energy storage and release performance of the system.

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References

[1] Alizadeh M., Sadramel S.M., Development of Free Cooling Based Ventilation Technology for Buildings: Thermal Energy Storage (TES) Unit, Performance Enhancement Techniques and Design Considerations – A Review, Renewable and Sustainable Energy Reviews, 58: 619-645 (2016).
[2] Azizi Z., Alamdari A., Doroodmand M.M., Highly Stable Copper/Carbon Dot Nanofluid. Preparation and Characterization, Journal of Thermal Analysis and Calorimetry, 133: 951–960 (2018).
[3] Azizi Z., Alamdari A., Malayeri M.R., Thermal Performance and Friction Factor of a Cylindrical Microchannel Heat Sink Cooled by Cu-Water Nanofluid, Applied Thermal Engineering,  99: 970–978 (2016).
[4] Azizi Z., Alamdari A., Malayeri M.R.. Convective Heat Transfer of Cu–Water Nanofluid in a Cylindrical Microchannel Heat Sink, Energy Conversion and Management, 101: 515–524 (2015).
[5] Chandel S.S., Agarwal T., Review of Current State of Research on Energy Storage, Toxicity, Health Hazards and Commercialization of Phase Changing Materials, Renewable and Sustainable Energy Reviews, 67: 581-596 (2017).
[6] Mohamed S.A., Al-Sulaiman F.A., Ibrahim N.I., Zahir M.H., Al-Ahmed A., Saidur R., Yılbaş B.S., Sahin A.Z., A Review on Current Status and Challenges of Inorganic Phase Change Materials for Thermal Energy Storage Systems, Renewable and Sustainable Energy Reviews, 70: 1072-1089 (2017).
[7] Browne M.C., Norton B., McCormack S.J., Phase Change Materials For Photovoltaic Thermal Management, Renewable and Sustainable Energy Reviews, 47: 762-782 (2015).
[8] Liu C., Rao Z., Zhao J., Huo Y., Li Y., Review on Nanoencapsulated Phase Change Materials: Preparation, Characterization and Heat Transfer Enhancement, Nano Energy, 13: 814-826  (2015).
[9] Graham M., Coca-Clemente J.A., Shchukina E., Shchukin D., Nanoencapsulated Crystallohydrate Mixtures for Advanced Thermal Energy Storage, Journal of Materials Chemistry A, 5(26): 13683-13691 (2017).
[10] Ling Z., Zhang Z., Shi G., Fang X., Wang L., Gao X., Fang Y., Xu T., Wang S., Liu X., Review on Thermal Management Systems Using Phase Change Materials for Electronic Components, Li-Ion Batteries and Photovoltaic Modules, Renewable and Sustainable Energy Reviews, 31: 427-438 (2014).
[11] Li Y., Yu S., Chen P., Rojas R., Hajian A., Berglund L., Cellulose Nanofibers Enable Paraffin Encapsulation and the Formation of Stable Thermal Regulation Nanocomposites, Nano Energy, 34: 541-548 (2017).
[12] Tahan Latibari S., Mehrali M., Mehrali M., Indra Mahlia T.M., Cornelis Metselaar H.S., Synthesis, Characterization and Thermal Properties of Nanoencapsulated Phase Change Materials via Sol-Gel Method, Energy, 61: 664-672 (2013).
[13] Sari A., Alkan C., Döğüşcü D.K., Kizil C., Micro/Nano Encapsulated N-Tetracosane and N-Octadecane Eutectic Mixture with Polystyrene Shell for Low-Temperature Latent Heat Thermal Energy Storage Applications, Solar Energy, 115: 195-203 (2015).
[14] Chen Z.H., Yu F., Zeng X.R., Zhang Z.G., Preparation, Characterization and Thermal Properties of Nanocapsules Containing Phase Change Material N-Dodecanol by Miniemulsion Polymerization with Polymerizable Emulsifier, Applied Energy,  91(1): 7-12 (2012).
[15] Tumirah K., Hussein M.Z., Zulkarnain Z., Rafeadah R., Nano-Encapsulated Organic Phase Change Material Based on Copolymer Nanocomposites for Thermal Energy Storage, Energy, 66: 881-890 (2014).
[16] Zhang G.H., Bon S.A.F., Zhao C.Y., Synthesis, Characterization and Thermal Properties of Novel Nanoencapsulated Phase Change Materials for Thermal Energy Storage, Solar Energy, 86(5): 1149-1154 (2012).
[17] Fang Y., Yu H., Wan W., Gao X., Zhang Z., Preparation and Thermal Performance of Polystyrene/N-Tetradecane Composite Nanoencapsulated Cold Energy Storage Phase Change Materials, Energy Conversion and Management, 76: 430-436 (2013).
[18] Tahan Latibari S., Mehrali M., Mehrali M., Afifi A.B.M., Mahlia T.M.I., Akhiani A.R., Metselaar H.S.C., Facile Synthesis and Thermal Performances of Stearic Acid/Titania Core/Shell Nanocapsules by Sol-Gel Method, Energy, 85: 635-644 (2015).
[19] Zhu Y., Liang S., Wang H., Zhang K., Jia X., Tian C., Zhou Y., Wang J., Morphological Control and Thermal Properties of Nanoencapsulated N-Octadecane Phase Change Material with Organosilica Shell Materials, Energy Conversion and Management, 119: 151-162 (2016).
[20] Zhu Y., Liang S., Chen K., Gao X., Chang P., Tian C., Wang J., Huang Y., Preparation and Properties of Nanoencapsulated N-Octadecane Phase Change Material with Organosilica Shell for Thermal Energy Storage, Energy Conversion and Management, 105: 908-917 (2015).
[21] Karthikeyan M., Ramachandran T., Review of Thermal Energy Storage of Micro and Nanoencapsulated Phase Change Materials, Materials Research Innovations, 18(7): 541-554 (2014).
[22] Sari A., Alkan C., Biçer A., Altuntaş A., Bilgin C., Micro/Nanoencapsulated N-Nonadecane with Poly(Methyl Methacrylate) Shell for Thermal Energy Storage, Energy Conversion and Management, 86: 614-621 (2014).
[23] Torabipoor, O., Azizi, Z., Experimental Study of Convective Heat Transfer Coefficient of MgO Nanofluid in a Cylindrical Microchannel Heat Sink, Transport Phenomena in Nano and Micro Scales, 6: 37-43 (2018).
[24] Heidarshenas A., Azizi Z., Peyghambarzadeh S.M., Sayyahi S., Experimental Investigation of the Particle Size Effect on Heat Transfer Coefficient of Al2O3 Nanofluid in a Cylindrical Microchannel Heat Sink, Journal of Thermal Analysis and Calorimetry, 141: 957-967 (2020).
[25] Chananipoor, A., Azizi, Z., Raei, B., Tahmasebi, N., Optimization of the Thermal Performance of Nano-Encapsulated Phase Change Material Slurry in Double Pipe Heat Exchanger: Design of Experiments Using Response Surface Methodology (RSM), Journal of Building Engineering, 34:101929 (2021).
[26] Zhang L., Yang W., Jiang Z., He F., Zhang K., Fan J., Wu J., Graphene Oxide-Modified Microencapsulated Phase Change Materials with High Encapsulation Capacity and Enhanced Leakage-Prevention Performance, Applied Energy,  197: 354-363 (2017).
[27] Dreyer D.R., Park S., Bielawski C.W., Ruoff R.S., The Chemistry of Graphene Oxide, Chemical Society Reviews, 39(1): 228-240 (2010).
[28] Qi G.Q., Yang J., Bao R.Y., Liu Z.Y., Yang W., Xie B.H., Yang M.B., Enhanced Comprehensive Performance of Polyethylene Glycol Based Phase Change Material with Hybrid Graphene Nanomaterials for Thermal Energy Storage, Carbon,  88: 196-205 (2015).
[29] Yi W., Wu H., Wang H., Du Q., Interconnectivity of Macroporous Hydrogels Prepared via Graphene Oxide-Stabilized Pickering High Internal Phase Emulsions. Langmuir, 32(4): 982-990 (2016).
[30] Alizadeh M., Sadrameli S.M., Numerical Modeling and Optimization of Thermal Comfort in Building: Central Composite Design and CFD Simulation. Energy and Buildings, 164: 187-202 (2018).
Iranian Journal of Chemistry and Chemical Engineering
Volume 40, Issue 2 - Serial Number 106
March and April 2021
Pages 383-394

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