Paraffin@Hectorite/water phase change fluid with sustainable suspension stability and efficient heat dissipation
Source abstract
Abstract
Latent heat fluids (LHFs) suffer suspension stability challenges when used in cooling fields. Herein, hectorite with natural stable suspension are used to encapsulate paraffin and prepare microencapsulated phase change materials (MPCM), which were dispersed into liquid water to prepare microencapsulated phase change slurry (MPCS) with preferable suspension stability. It was found that the hectorite was electrostatic adsorbed onto the paraffin surface and formed a core-shell structure microcapsule. SEM (scanning electronic microscope) identified that MPCM exhibited a well-defined, core−shell structure with spherical morphology. DSC (differential scanning calorimeter) analysis demonstrated that phase change enthalpy of MPCM is 144.74 J/g with encapsulation efficiency of 61.45%. TGA (thermogravimetric analysis) revealed that hectorite contributed in improving the thermal stability of MPCM. It was observed that the MPCS could maintain stable suspension at least 30 days. The heat dissipation experiment showed that the MPCS with 5%, 8%, and 10% MPCM concentrations increased heat dissipation by 8.7%, 11.1%, and 13.7%, respectively, compared to pure water. This work reports a new strategy through introducing hectorite into phase change fluids to enhance suspension stability. The MPCS, with its preferable suspension stability and heat dissipation performance, has promising potential for applications in energy storage, cooling, and heat dissipation.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Phase Change Materials Research · Adsorption and Cooling Systems · Polymer composites and self-healing
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (61)
Show source-provided references
1. Emulsion stability and cross-linking of PMMA microcapsules containing phase change materials10.1016/j.solmat.2014.08.036 ↗
2. Thermal performance of microencapsulated phase change material slurry in turbulent flow under constant heat flux10.1016/j.ijheatmasstransfer.2006.09.026 ↗
3. Halloysite based geopolymers filled with wax microparticles as sustainable building materials with enhanced thermo-mechanical performances10.1016/j.jece.2022.108594 ↗
4. Synthesis and characterization of microencapsulated paraffin with titanium dioxide shell as shape-stabilized thermal energy storage materials in buildings10.1016/j.enbuild.2013.12.028 ↗
5. Halloysite Nanotubes Loaded with Calcium Hydroxide: Alkaline Fillers for the Deacidification of Waterlogged Archeological Woods10.1021/acsami.8b09416 ↗
6. Characterization of thermal and hydrodynamic properties for microencapsulated phase change slurry (MPCS)10.1016/j.enconman.2013.12.026 ↗
7. Removal of graphene oxide from water by floc-flotation10.1016/j.seppur.2018.03.034 ↗
8. Microencapsulated phase change material suspension for cold start of pemfc
9. Fabrication of polymeric–Laponite composite hollow microspheres via LBL assembly10.1016/j.cclet.2016.10.012 ↗
10. N-Eicosane-Fe3O4@SiO2@Cu microcapsule phase change material and its improved thermal conductivity and heat transfer performance10.1016/j.matdes.2020.109357 ↗
11. Self-assembly regulation of montmorillonite nanosheet for Pb(II) removal from aqueous solution10.1016/j.powtec.2023.119000 ↗
12. Synthesis and electrorheological response of nano-sized laponite stabilized poly(methyl methacrylate) spheres10.1007/s00396-009-2030-3 ↗
13. Thermal-hydraulic analysis for alumina/water nanofluid inside a mini-channel heat sink with latent heat cooling ceiling-an experimental study10.1016/j.icheatmasstransfer.2020.104477 ↗
14. Thermal properties and applications of microencapsulated PCM for thermal energy storage: a review10.1016/j.applthermaleng.2018.11.007 ↗
15. Self-assembly fabrication of GO/TiO2@paraffin microcapsules for enhancement of thermal energy storage10.1016/j.powtec.2021.03.020 ↗
16. Performance optimization of a photovoltaic/thermal collector using microencapsulated phase change slurry10.1002/er.5028 ↗
17. Multifunctional BiOI/SiO2/Fe3O4@n-Docosane Phase-Change Microcapsules for Waste Heat Recovery and Wastewater Treatment10.3390/ma16041656 ↗
18. Synthesis of monodispersed paraffin microcapsules by polycondensation using membrane emulsification and their latent heat properties10.1007/s13233-015-3134-x ↗
19. Identifying the Superstability Landscapes of Clay-Carbon Nanosheet Suspensions10.1021/acs.jpcc.9b10220 ↗
20. Kaolinite stabilized paraffin composite phase change materials for thermal energy storage10.1016/j.clay.2015.07.033 ↗
21. Preparation and flow resistance characteristics of novel microcapsule slurries for engine cooling system10.1016/j.enconman.2016.12.043 ↗
22. Hydroxypropyl Cellulose Films Filled with Halloysite Nanotubes/Wax Hybrid Microspheres10.1021/acs.iecr.0c05148 ↗
23. Pickering Emulsions based on Wax and Halloysite Nanotubes: an Ecofriendly Protocol for the Treatment of Archeological Woods10.1021/acsami.0c20443 ↗
24. Experimental research on flow and heat transfer characteristics of latent functional thermal fluid with microencapsulated phase change materials10.1016/j.ijheatmasstransfer.2017.07.107 ↗
25. Preparation and characterization of sodium thiosulfate pentahydrate/silica microencapsulated phase change material for thermal energy storage10.1039/C6RA28056K ↗
26. Tailoring of bifunctional microencapsulated phase change materials with CdS/SiO2 double-layered shell for solar photocatalysis and solar thermal energy storage10.1016/j.applthermaleng.2018.02.027 ↗
27. Combined effect of cetyltrimethylammonium bromide and laponite platelets on colloidal stability of carbon nanotubes in aqueous suspensions10.1016/j.molliq.2017.01.090 ↗
28. Rheological and structural characterization of organo-hectorite dispersions: Influence of the organoclay loading10.1016/j.clay.2019.105321 ↗
29. Experimental and numerical investigation of laminar heat transfer of microencapsulated phase change material slurry (MPCMS) in a circular tube with constant heat flux10.1016/j.scs.2019.101786 ↗
30. Experimental investigation of the energy performance of a novel Micro-encapsulated phase Change Material (MPCM) slurry based PV/T system10.1016/j.apenergy.2015.11.053 ↗
31. Experimental investigation of the energy performance of a novel Micro-encapsulated phase Change Material (MPCM) slurry based PV / T system10.1016/j.apenergy.2015.11.053 ↗
32. Flow and heat transfer characteristics of microencapsulated phase change slurry in thermal energy systems: a review10.1016/j.rser.2020.110101 ↗
33. Efficacy of using slurry of metal-coated microencapsulated PCM for cooling in a micro-channel heat exchanger10.1016/j.applthermaleng.2017.05.001 ↗
34. Recent developments in the synthesis of microencapsulated and nanoencapsulated phase change materials10.1016/j.est.2019.100821 ↗
35. Performance enhancement of photovoltaic panel by using microencapsulated phase change slurry in channel with staggered pins
36. Structural characterization of organo-montmorillonites prepared from a series of primary alkylamines salts: Mid-IR and near-IR study10.1016/j.clay.2019.04.016 ↗
37. Near-IR study of the impact of alkyl-ammonium and -phosphonium cations on the hydration of montmorillonite10.1016/j.molstruc.2022.132568 ↗
38. Experimental study on laminar convective heat transfer of microencapsulated phase change material slurry using liquid metal with low melting point as carrying fluid10.1016/j.ijheatmasstransfer.2014.01.059 ↗
39. Flow and sedimentation characteristics of silica hard-shell microcapsule slurries treated with additives10.1016/j.ijrefrig.2019.07.007 ↗
40. Application of rheology for assessment and prediction of the long-term physical stability of emulsions10.1016/j.cis.2003.10.025 ↗
41. Electrorheological properties of organically modified nanolayered laponite: Influence of intercalation, adsorption and wettability10.1039/b818502f ↗
42. Preparation and characterization of self-assembly hydrogels with exfoliated montmorillonite nanosheets and chitosan
43. A comprehensive review on phase change material emulsions: Fabrication, characteristics, and heat transfer performance10.1016/j.solmat.2018.11.016 ↗
44. Photo-thermal performance evaluation on MWCNTs-dispersed microencapsulated PCM slurries for direct absorption solar collectors10.1016/j.est.2019.100793 ↗
45. Chitosan-induced self-assembly of montmorillonite nanosheets along the end-face for methylene blue removal from water10.1016/j.ijbiomac.2022.12.206 ↗
46. Adsorption properties of Congo red from aqueous solution on modified hectorite: Kinetic and thermodynamic studies10.1016/j.desal.2010.07.035 ↗
47. Synthesis of novel microencapsulated phase change materials with copper and copper oxide for solar energy storage and photo-thermal conversion10.1016/j.solmat.2018.02.008 ↗
48. Heat transfer performance by forced convection of microencapsulated phase change material-latent functional thermal fluid flowing in a mini-channels heat sink10.1016/j.applthermaleng.2022.119158 ↗
49. Preparation, physical property and thermal physical property of phase change microcapsule slurry and phase change emulsion10.1016/j.solmat.2003.08.005 ↗
50. A comprehensive review of hydrodynamic mechanisms and heat transfer characteristics for microencapsulated phase change slurry (MPCS) in circular tube10.1016/j.rser.2019.109312 ↗
51. Effects of acid leaching and organic intercalation on the thermophysical properties of paraffin/expanded vermiculite composite phase change materials10.1016/j.clay.2020.105754 ↗
52. Surface wettability of montmorillonite (001) surface as affected by surface charge and exchangeable cations: a molecular dynamic study10.1016/j.apsusc.2018.07.216 ↗
53. A novel core-shell structural montmorillonite nanosheets/stearic acid composite PCM for great promotion of thermal energy storage properties10.1016/j.solmat.2018.12.015 ↗
54. Design of MtNS/SA microencapsulated phase change materials for enhancement of thermal energy storage performances: effect of shell thickness10.1016/j.solmat.2019.109935 ↗
55. Development of superior stable two-dimensional montmorillonite nanosheet based working nanofluids for direct solar energy harvesting and utilization10.1016/j.clay.2020.105886 ↗
56. Three-dimensional montmorillonite/Ag nanowire aerogel supported stearic acid as composite phase change materials for superior solar-thermal energy harvesting and storage10.1016/j.compscitech.2021.109121 ↗
57. An overview of fundamental studies and applications of phase change material slurries to secondary loop refrigeration and air conditioning systems10.1016/j.rser.2012.03.059 ↗
58. Crystallization and prevention of supercooling of microencapsulated n-alkanes10.1016/j.jcis.2004.08.046 ↗
59. Hectorite: Synthesis, modification, assembly and applications10.1016/j.clay.2019.05.001 ↗
60. Role of latent heat storage in thermal performance of an axially grooved heat pipe10.1016/j.ijheatmasstransfer.2022.123415 ↗
61. A novel method for determining the thickness of hydration shells on nanosheets: a case of montmorillonite in water10.1016/j.powtec.2016.10.045 ↗