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PCM Energy P. Ltd

Natural Cooling by Phase Change Materials
 Customized PCMs  

We have several Associated Units
ISO-9001-2008 Certificate
"REACH"   Pre-registered

General Products - AC Backup Phase Change Material - Encapsulation Method of PCM Phase Change Material Manufacturers - Telecom Shelters Phase Change Material - Doctor Says - Phase Change Material Air Conditioner at 21C or 29C

PCM Phase Change Material Manufacturers

T-series 18°Cto29°C: Phase Change Material, PCM Latest TM Brand with Melting Point 18°C to 29°C and Latent Heat of fusion 170 KJoule/Kg or 255 KJoule/liter. It is best suited for Air-Condition Back-up to BT Shelter or Telecom Shelter. Other M.P. grades are summarized in the link.

S-series 32°Cto48°C PCM Latest TM Brand with Melting Point 32°C to 48°C and Latent Heat of fusion 260 KJoule/Kg or 357 KJoule/liter. It is best suited for Air-Cooled Outdoor BTS and Electronic Cooling. Other grades are summarized in the link.

Hot Pads and Solar Heating systems use our PCM LatestTM58, melting at 58°C.

Telecom Enclosure: PCM or Phase Change Material widely used in Telecom Enclosures (BT Shelters) is LatestTM29T for Air-condition Back-up and LatestTM36S for Free Cooling. We also Offer Polymer-based PCM-Filled Profiles Panels and Aluminum PCM-Filled Profiles or any other Containers like Balls or Bottles or Heat Sinks or Jackets. We provide engineering services for Back-up Cooling in Existing and New Shelters. If your interest is only in PCMs for Telecom Shelter then go to our page at PCMs for Telecom Shelters For Encapsulation Methods like Profiles Balls, Pouches, Bottles, Heat Sink, False Ceiling, Walls Paneling, Cool Furniture etc. Go to our Page Phase Change Material Encapsulation Methods.

Freezer Salt: PCM used for maintaining the temperature at 0°C, you get it free; use tap water. Ask us for other target temperatures like4°C, 7°C, 10°C, 15°C, Minus 5°C, Minus 30°C and so on.

We cannot help making a negative comment on the products offered by other brands. Most of the brands are offering Thermal Salt 29 that freezes at less than 18°C, making them practically useless in tropical regions. The shelf life of some of the vendors is hardly 45-60 day, making its use by long distance importers almost impractical. Most of such vendors are not manufacturer of the major ingredients but only compounders. Often, they are one-man-show manufacturers and quote fancy prices for the product. With the information technology to their aid, they make fancy web sites and manage to squeeze the buyers. We have six manufacturing units, owned and managed by family members and most of the ingredients are manufactured by us.


TECHNO-COMMERCIAL STATEMENT OF PCM PRODUCT T-series Latest™

PCM Energy P. Ltd PCM Latest™
Product Latest™29T also any other grade like Latest™18T, Latest™20T, Latest™22T, Latest™25T
Series T-series Latest™
Description Viscous Semi-Solid near Phase Change Temperature
Appearance Translucent
Base Material Inorganic Salts
Phase Change Temperature 28-30°C
Sub Cooling 2°C max
Specific Gravity 1.48-1.50
Latent Heat Practically 175 Joules/g
Latent Heat Theoretical 188 Joules/g
Spec. Heat 2 Joules/g°C
Thermal Conductivity 1Watt/m °C
Congruent Melting Yes
Flammability No
Hazardous No
Thermal Stability > 10000 cycles
Max. Operating Temperature 100°C
Rates Available on request

T-series is the Latest in PCM technology, Generation-X. It is not degradable with time. It can be used in thicker layers greater than 1” (>25mm). This product has made the earlier PCMs obsolete.

For a Live-Site Trial of Back-up Air-conditioning with Thermal Salt Latest™29T visit our Bookmark on Live Site Trial in Telecom Shelters 

Table of Cycle No. V/s Latent Heat & Sub Cooling for PCM Latest™29T

Cycle No. Latent Heat KJ/Kg & Sub-cooling in C
100 LH 196 KJ/Kg & Sub-cool 0.5C
200 LH 188 KJ/Kg & Sub-cool 1C
300 LH 188 KJ/Kg & Sub-cool 0.9C
400 LH 192 KJ/Kg & Subcool 0.8C
500 LH 185 KJ/Kg & Sub-cool 0.7C
1000 LH 178 KJ/Kg & Sub-cool 1C
1500 LH 172  KJ/Kg & Sub-cool 1.3C
2000 LH 175 KJ/Kg & Sub-cool 1.2C
2500 LH 178 KJ/Kg & Sub-cool 1.3C
3000 LH 170 KJ/Kg & Subcool 1.4C

The Error in measurement of Latent Heat can be up to 5% and The Thermometer Sensor can be off by 0.5°C<a name=Latest29></a>

Latest TM 29T

Phase Change Materials (PCMs) or Thermal Salts are "latent" thermal storage materials. They use chemical bonds to store and release heat. The thermal energy transfer occurs when a material changes from a solid to a liquid or from a liquid to a solid. This is called a change in state or "phase." Initially, these solid-liquid Thermal Salts perform like conventional storage materials; their temperature rises as they absorb solar heat. Unlike conventional heat storage materials, when PCMs reach the temperature at which they change phase (their melting point), they absorb large amounts of heat without getting hotter. When the ambient temperature in the space around the PCM material drops, it solidifies, releasing its stored latent heat. PCMs absorb and emit heat while maintaining a nearly constant temperature. Within the human comfort and electronic-equipment tolerance range of 20°C to 35°C, latent thermal storage materials are very effective. The main applications for Thermal Salts are when space restrictions limit larger thermal storage units in direct gain or sunspace passive solar systems. PCMs may be used in Thermal Enclosures like Telecom Chambers BTS or BT Shelters or solar domestic hot water heating or passive solar space heating/cooling systems.

Glauber's salt, Soda Ash, Sodium acetate and paraffin wax are the most commonly used PCMs or Thermal Salts in solar heating systems. Although these compounds are fairly inexpensive, the packaging and processing necessary to get acceptable performance from them is complicated and costly. They are not offering a reliable pattern of releasing heat as the chemicals in these Thermal Salts separate and stratify when in their liquid state. These PCMs have not always re-solidified properly. When temperatures dropped, they did not completely solidify, reducing their capacity to store latent heat. These problems have been addressed by packaging phase change materials in thin or shallow containers, and by adding thickening and clumping agents. Many salt hydrate PCMs have the disadvantage that during extraction of stored heat the material super-cools before freezing. This reduces the utility of the materials and if too severe, it can completely prevent heat recovery. They lose their heat storage property after some cycles. These types of PCMs, however, compare unfavorably with the newer generation of low-cost, highly efficient PCMs. Researchers now label these older compounds as "limited utility" PCMs. Phase Change Materials perform best in containers that have a depth of one inch (25.4 millimeters). However, our T-Series Latest™ PCMs have defied this restriction. The packaging material should conduct heat well; and it should be durable enough to withstand frequent changes in the storage material's volume as phase changes occur. It should also restrict the passage of water through the walls, so the materials will not dry out. Packaging must also resist leakage and corrosion. Aluminum, steel and polyethylene are common packaging materials.

Thermal Salt Latest 29T

Our Thermal Salt Latest™29T is a mixture of several ingredients. Most of these items are manufactured by us or by our sister concerns. Its properties are as under:

Specific Gravity: 1.5
Freezing Point: 28°C
Melting Point: 29°C
Latent Heat of Fusion: 175 KJoule/Kg (40 K. Cal/Kg). 255 KJ/ltr (60000 KCal/Cu.m)
*Most manufacturers report the heat of fusion in a temperature range, like 20oC to 35oC. The specific heat of PCM in this range will get added to the values. For this temperature range
*Latent Heat of Fusion: 210 KJoule/Kg (50 K. Cal/Kg).
Shelf Life: Infinite
Max. Operating Temp.: 100oC

210 Kg of Latest29T PCM (10KWH) filled profiles were installed in an Existing Telecom Shelter of 2m Length by 2.5m width by 2.7m Height. Five thermometers were installed to measure temperature at various points. The Air-condition was switched off when the temperature was 17.3oC. Ambient temperature was also measured. The battery voltage was observed as per the instruction of the site-officer. The permissible maximum temperature that can be reached was targeted to 36oC. This temperature was not reached in 6 Hours of the run. In a blank reading without Latest29T PCM the target maximum temperature crossed in less than 1 hour.

For a Live-Site Trial of Air condition Back-up click Phase Change Material for AC Back up in telecom Shelter
For maintaining a Green House at 16C click Green House Cooling
For Day-Night Temperature Balancing at 24C (Free AC) click Day & Night Temperature Balancing with PCM

Free Cooling for BT Shelters (Telecom Shelter)

Weather Information

Bhopal Mean Temperature°C
Month Min--- -- Max---
Jan 10.2°C -- 25.0°C
Feb 12.4°C -- 28.6°C
Mar 17.1°C -- 33.6°C
Apr 21.8°C -- 38.3
May 25.5°C -- 43.7°C
June 25.3°C -- 37.0°C
July 23.1°C -- 30.6°C
Aug 22.4°C -- 28.8°C
Sept 21.4°C -- 30.5°C
Oct 18.4°C -- 32.0°C
Nov 14.1°C -- 29.0°C
Dec 10.9°C -- 25.9°C

Similar data on other cities will be available on-line from weather channels

Presentation for Providing Free Cooling in BT Shelters in the “Hinter Land”

The above details are the mean maximum and minimum temperatures in various cities in the “Hinter Land”. The selected cities do not include any of the costal towns as the costal towns have a different temperature pattern. The above information is available from World Weather Information Service, India Meteorological Department.

A close scrutiny shows that the mean monthly maximum temperature in India, in the hinterland can be 43oC and a peak time maximum temperature in India, in the hinterland can be 45oC with an occasional shoot-up. The corresponding minimum temperature can be 27oC on that day. A PCM of 36oC is ideally suited for such a climate and for a BT Shelter that is targeting a maximum temperature of 40oC inside the shelter.

The worst day in the year may have a temperature profile in a day as under:

40 to 45°C+ for 4hours
36 to 40°C for 8 hours
27 to 36°C for 12 hours

The temperature pattern in the BT Shelter can be as under:

No. of Hours in a day Ambient Temp.°C - Shelter Temp. w/o PCM - Shelter Temp. with 36°C PCM - Energy Load in KWH
04 40-45+ ######## - 50-55°C ############# - 38-40°C ################### - 5KWH Discharging
08 36-40 ######### - 46-50°C ############# - 36-38°C ################### - 5KWH Discharging
12 27-36 ######### - 37-46°C ############# - 27-36°C ################### - Charging PCM.

The PCM of Melting Point 36°C is well suited for the job. Depending on the size of BTS and ambient conditions, the Energy load will vary.

This presentation is made for starting an interaction with user.

TECHNO-COMMERCIAL STATEMENT OF PCM PRODUCT PHASE CHANGE MATERIAL S-SERIES LATEST™

PCM Energy P. Ltd. PCM Latest™
Product Latest™36S also other grades like Latest™32S, Latest™34S, Latest™48S
Series S-series Latest™
Description Viscous Semi-Solid near Phase Change Temp.
Appearance Cream or Gray
Base Material Inorganic Salts
Sub Cooling @ 1000 cycles Small
Specific Gravity 1.45
Latent Heat Theoretical 260 Joules/g -
Latent Heat Practical >200 Joules/g - >220 Joules/g - >230 Joules/g - >230 Joules/g
Spec. Heat 2 Joules/g oC
Thermal Conductivity 0.6Watt/m oC
Congruent Melting Yes
Flammability No
Hazardous No
Thermal Stability > 10000 cycles
Max. Operating Temp. 100°C
Rates Available on request

Latest TM 32S, Latest™ 34S, Latest™ 45S 48s etc. salts are similar to Latest™ 36S.

LatestTM36S

Phase Change Materials (PCMs) are "latent" thermal storage materials. They use chemical bonds to store and release heat. The thermal energy transfer occurs when a material changes from a solid to a liquid or from a liquid to a solid. This is called a change in state or "phase." Initially, these solid-liquid PCMs perform like conventional storage materials; their temperature rises as they absorb solar heat. Unlike conventional heat storage materials, when PCMs reach the temperature at which they change phase (their melting point), they absorb large amounts of heat without getting hotter. When the ambient temperature in the space around the PCM material drops, the material solidifies, releasing its stored latent heat. PCMs absorb and emit heat while maintaining a nearly constant temperature. Within the equipment comfort range of 25°C to 45°C, latent thermal storage materials are very effective. The main applications for PCMs are when space restrictions limit larger thermal storage units in direct gain or sunspace passive solar systems. PCMs may be used in Thermal Enclosures like Telecom Chambers or solar domestic hot water heating or passive solar space heating/cooling systems.

Glauber's salt, Soda ash, Sodium Acetate and paraffin wax are the most commonly used PCMs in solar heating systems. Although these compounds are fairly inexpensive, the packaging and processing necessary to get acceptable performance from them is complicated and costly. They are not offering a reliable pattern of releasing heat as the chemicals in these PCMs separate and stratify when in their liquid state. These PCMs have not always re-solidified properly. When temperatures dropped, they did not completely solidify, reducing their capacity to store latent heat. These problems have been addressed by packaging phase change materials in thin or shallow containers, and by adding thickening and clumping agents. Many salt hydrate PCMs have the disadvantage that during extraction of stored heat the material super-cools before freezing. This reduces the utility of the materials and if too severe, it can completely prevent heat recovery. They lose their heat storage property after some cycles. These types of PCMs, however, compare unfavorably with the newer generation of low-cost, highly efficient Phase Change Materials. Researchers now label these older compounds as "limited utility" PCMs.

Phase Change Materials perform best in containers that have a depth of  one inch (25.4 millimeters). The packaging material should conduct heat well; and it should be durable enough to withstand frequent changes in the storage material's volume as phase changes occur. It should also restrict the passage of water through the walls, so the materials will not dry out. Packaging must also resist leakage and corrosion. Aluminum, steel and polyethylene are common packaging materials.

Thermal Salt Latest™36S

Our Thermal Salt Latest™36S is a mixture of several ingredients. Most of these items are manufactured by us or by our sister concerns. Its properties are as under:

Specific Gravity: 1.4
Melting Point: 36C. There can be some freezing/melting in 3oC around it.
Latent Heat of Fusion: 250 KJoule/Kg (60 K. Cal/Kg).
----------------------- 340 KJoule/liter (81000 KCal/Cu.m)
*Most manufacturers report the heat of fusion in a temperature range, like 20oC to 40oC. The specific heat of PCM in this range will get added to the values. For this temperature range
*Latent Heat of Fusion: 300 KJoule/Kg (72 K. Cal/Kg).
Thermal Expansion: The coefficient of thermal expansion is the least offered in the industry. This eliminates cracking or shattering of containers and tubes.

Pacing PCM Aluminium Pipe Filled

------ PCM filled Panels ------------- PCM filled Aluminum Pipes

Bottles ------- HDPE Ball ------- SS Balls ------- PCM Battery Jacket

Aluminum Bottles --- HDPE Balls --- S S Balls --- Jacket

Heat Exchanger Profiles
Heat Exchanger Stackable & Wall Mountable PCM-Filled Profiles

Hermetically Sealed Profile of Any Size Like 16mm*160mm*1000mm OR 20mm*200mm*850mm or …..etc, offered in Polymer or Aluminum filled with desired Grade of PCM i.e. Phase Change Material. We can give PCMs in Aluminum or Pet Bottles, HDPE or SS Balls or in Aluminum Sinks or in any container as per your choice.

PCM Manufacturers
Phase Change Material Manufacturers

PCM Energy P. Ltd
Mazgaon, Mumbai 400 010, INDIA
TEL: 91-22-23770100, 23774610, 23726950, 23723564. FAX: 91-22-23728264

Current Date Time in India is GMT+5:30

Email: anmol@pcmenergy.com

Copyright and Usual Disclaimer is Applicable
Last updated: 04.10.2016

Pacing PCM SS Balls
----- PCM filled Panels ------------------- PCM filled SS Ball -

PCM AC Air Condition
Natural Air conditioning with PCM in Ceiling.

Natural Cooling by Phase Change Materials
Renewable Energy PCM Cooled AC Office building in Netherlands.

Floating balls cooled by Phase Change Material Inside of Floating balls Public display at Rotterdam
Floating Balls of Rotterdam cooled (Air Conditioned) by PCM.

Heat Exchanger Profiles
Heat Exchanger Stackable & Wall Mountable PCM-Filled Profiles

If you want your work to be done well, then go to a busy man.
The other one has no time.