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PCM Phase Change Materials For Thermal Energy Storage / Solid Solid Phase Change

PCM Phase Change Materials For Thermal Energy Storage / Solid Solid Phase Change

Brand Name : ANDOR
Model Number : AND/OR
Certification : SDS/SGS/ISO
Place of Origin : CHINA
MOQ : 1010Kg
Payment Terms : L/C, T/T, Western Union
Supply Ability : 11000Kg 8 days
Delivery Time : 22 days
Packaging Details : Bulk packing in barrels
Name : PCM Phase Change Material
Sample : Avaliable
OEM : Yes
Manufacturer : Yes
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PCM Phase Change Material Energy Storage Material / PCM Phase Change Material

PCM characteristics

PCMs latent heat storage can be achieved through solid–solid, solid–liquid, solid–gas and liquid–gas phase change. However, the only phase change used for PCMs is the solid–liquid change. Liquid-gas phase changes are not practical for use as thermal storage due to the large volumes or high pressures required to store the materials when in their gas phase. Liquid–gas transitions do have a higher heat of transformation than solid–liquid transitions. Solid–solid phase changes are typically very slow and have a rather low heat of transformation.

Initially, the solid–liquid PCMs behave like sensible heat storage (SHS) materials; their temperature rises as they absorb heat. Unlike conventional SHS, however, when PCMs reach the temperature at which they change phase (their melting temperature) they absorb large amounts of heat at an almost constant temperature. The PCM continues to absorb heat without a significant rise in temperature until all the material is transformed to the liquid phase. When the ambient temperature around a liquid material falls, the PCM solidifies, releasing its stored latent heat. A large number of PCMs are available in any required temperature range from −5 up to 190°C .Within the human comfort range of 20°C to 30°C, some PCMs are very effective. They store 5 to 14 times more heat per unit volume than conventional storage materials such as water, masonry or rock.

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microencapsulated phase change materials


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PCM Phase Change Materials For Thermal Energy Storage / Solid Solid Phase Change Images

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