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Fast Pyrolysis of Biomass Residues in a Twin-screw Mixing Reactor
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Functional Unit Construction for Heat Storage by Using Biomass-Based Composite.

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Summary

Researchers developed sugarcane-based shape stabilized phase change materials (SSPCMs) for efficient heat storage. These materials exhibit improved thermal conductivity and prevent leakage, making them ideal for energy applications.

Keywords:
SSPCMsphase change materialspolyethylene glycolsugarcane-based biomassthree-dimension

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Area of Science:

  • Materials Science
  • Energy Storage
  • Biomass Utilization

Background:

  • Developing effective phase change materials (PCMs) for heat storage is crucial.
  • Biomass materials offer a sustainable and cost-effective resource for advanced material development.

Purpose of the Study:

  • To design and construct a functional heat storage unit using sugarcane-based shape stabilized phase change materials (SSPCMs).
  • To enhance the thermal conductivity and prevent leakage of PCMs through vacuum impregnation.
  • To investigate the structural and thermal properties of the prepared SSPCMs.

Main Methods:

  • Vacuum impregnation method to prepare sugarcane-based SSPCMs.
  • Characterization using Scanning Electron Microscopy (SEM), X-ray diffractometry (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), and Thermogravimetric Analysis (TGA).
  • Thermal properties evaluated using Differential Scanning Calorimetry (DSC).

Main Results:

  • SSPCMs possess a unique channel structure conducive to heat storage.
  • No chemical reactions occurred between PEG and sugarcane biomass; materials showed high thermal stability.
  • High melting enthalpy (140.04 J/g) and relative enthalpy efficiency (94.84%) confirmed excellent shape-stabilized behavior.
  • Achieved a maximum thermal conductivity of 0.297 W/(mK), a 28.02% increase over pristine PEG.

Conclusions:

  • The unique anisotropic 3D structure of SSPCMs facilitates efficient thermal energy storage.
  • Sugarcane-based SSPCMs demonstrate excellent thermal properties and stability.
  • These materials are promising for various energy-related devices due to their low cost and green preparation.