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Passive Cooling Material   (Click to see more details)

Another unique solution from Synergy Telecommunications for alternate thermal back up, eliminating the need of running diesel generators at high costs to support air conditioning at the time of power failure. This solution has found an audience in the Telecommunication industry. Phase Change Material is a hydrated salt, which has a large amount of energy (in the form of latent heat) that is absorbed or released when the material changes from solid to liquid state or vice-versa. These phase changes take place at a constant temperature and the process can be repeated over thousands of cycles without altering the physical or chemical properties of the material
 

Specifications

Description

:

Calcium Chloride Based

Enthalpy

:

188 J/gm

Melting Temp.

:

79 Wh/L 'C

Solid sensible Heat

:

.66Wh/L 'C

Liquid Sensible Heat

:

.98 Wh/L 'C

Freeze Point

:

26 Deg C

Discharge Time Heat

:

>= Total PCM KWH/ Dissipation

Recharge Time

:

1.1-1.2 times of Discharge  (Depending upon cooling capacity)

Heat Capacity

:

1 KWH = 25 Kg

Useful Temp. Range

:

26 deg C to 35 deg C

Thermal Conductivity

:

.8 W/MK

Weight of PCM salt/panel

:

2.5 Kg

Density

:

1500 Kg/ m3
 

Salient Features
 

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Use of PCM-T, designed specifically for Telecom applications.
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Phase Change at 29 deg C providing sufficient margin to keep shelter temperature within acceptable limits for a longer duration.
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Hydrated salt avoiding flammable paraffin based materials.
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High Enthalpy (188 J/g) to provide high backup time per Kg of material.
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High Density to provide high backup time per unit of volume occupied.
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Packing in Small Size(420x210x25)mm, low weight (2.5kg / panel), blow moulded, rib isolated HDPE panels for high surface area, sufficient strength and ease of field handling.
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Only one joint (at opening) to avoid leakage.
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High heat energy transfer (12 times that of water of same weight, Higher volume) in a narrow useful temperature range.
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No moving parts or electrical current, Hence no wear and tear.
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Natural phase change cycles of molecules depending on temperature and  molecular energy.
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Immune to any Lightening strikes, Electrical surges or Radio frequency.