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US 11,306,238 B2Granted
Shape-stabilized phase change materials for energy storage
AssigneeKing Fahd University of Petroleum and Minerals
InventorsMd. Hasan Zahir, Mohammed Mozahar Hossain, Mohammad Mizanur Rahman, Salhi Billel
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Abstract
A heat storage material comprising mesoporous Mg(OH)2 and having pores loaded with a phase change material is described. The heat storage material has a cooling latent heat of 130-140 J/g, and a solidification enthalpy of 120-135 J/g, and a thermal conductivity of 25-45 W·m−1·K−1. The phase change material may be polyethylene glycol, and the polyethylene glycol does not leak from the pores of the mesoporous Mg(OH)2 when heating or cooling over phase transitions.
Claims20
A heat storage material, comprising:
- 10-50 wt % mesoporous Mg(OH)2, and
- 50-90 wt % phase change material, each relative to a total weight of the heat storage material,
- wherein the mesoporous Mg(OH)2 is in the form of particles with an average diameter in a range of 100 nm-1 μm,
- wherein the mesoporous Mg(OH)2 has pores with an average pore size in a range of 5-15 nm,
- wherein 10-100 wt % phase change material relative to a total weight of the phase change material is located within the pores, and
- wherein the phase change material is an organic compound.
3 more elements
Dependencies are inferred from the claim text.