PCM Energy, is the pioneer manufacturer of Phase Change Materials and various Related Chemicals in India.  It has several associated manufacturing facilities spread across the globe. No other vendor in the world knows the subject better than us. The participating units have one or more of the certifications like ISO-9001-2008, ISO-22000, Halal & Kosher Certification. We also have "REACH" Pre-registration.
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Phase Change Material General Products ---  FAQ; Phase Change Materials PCM --- Air Conditioner with PCM Phase Change Material
A.C. Backup Phase Change Materials --- Phase Change Material Encapsulation --- Telecom Shelters Phase Change Material

Phase Change Material PCM Manufacturers - Green House, Electronics cooling...

T-series 18Cto29C: Phase Change Material, PCM LatestTM Brand with Melting Point 29°C and Latent Heat of fusion 170 K.Joule/Kg or 255 K.Joule/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 32Cto45C: PCM Latest TM  Brand with Melting Point 36°C and Latent Heat of fusion 260 K.Joule/Kg or 357 K.Joule/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 Latest^TM58, melting at 58°C.

Telecom Enclosure: PCM or Phase Change Material widely used in Telecom Enclosures (BT Shelters) is Latest^TM29T for Air-condition Back-up and Latest^TM36S 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 also supply Telecom Shelters and 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^oC, 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.

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TECHNO-COMMERCIAL STATEMENT OF PCM PRODUCT PHASE CHANGE MATERIAL T-series Latest^™

PCM Energy P. Ltd	PCM Latest™	PCM Latest™	PCM Latest™	PCM Latest™
Product	Latest™29T	Latest™25T	Latest™20T	Latest™18T
Series	T-series Latest™
Description	Viscous Semi-Solid near Phase Change Temperature
Appearance	Translucent
Base Material	Inorganic Salts
Phase Change Temperature	28-30oC	24-26oC	19-20oC	17-19oC
Sub Cooling	2oC max	2oC max	2oC max	2oC max
Specific Gravity	1.48-1.50	1.48-1.50	1.48-1.50	1.48-1.50
Latent Heat Practically	175 Joules/g	175 Joules/g	175 Joules/g	175 Joules/g
Latent Heat Theoretical	188 Joules/g	188 Joules/g	188 Joules/g	188 Joules/g
Spec. Heat	2 Joules/g oC	2 Joules/g oC	2 Joules/g oC	2 Joules/g oC
Thermal Conductivity	1Watt/m oC	1Watt/m oC	1Watt/m oC	1Watt/m oC
Congruent Melting	Yes	Yes	Yes	Yes
Flammability	No	No	No	No
Hazardous	No	No	No	No
Thermal Stability	> 10000 cycles	> 10000 cycles	> 10000 cycles	> 10000 cycles
Max. Operating Temperature	100oC	100oC	100oC	100oC
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. Latest™ 25T, Latest™ 20T, Latest™ 18T salts are similar to Latest™ 29T.

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

Cycle No.	100	200	300	400	500	1000		1000	1500	2000	1500	2000	2500	3000
Latent Heat KJ/Kg	196	188	188	192	185	178		178	175	170	172	175	178	170
Sub Cooling oC	0.5	1.0	0.9	0.8	0.7	1.0		1.0	1.1	1.2	1.3	1.2	1.3	1.4

Error in measurement of Latent Heat can be <5% and Thermometer Sensor can be off by 0.5 oC

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:

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

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 36^oC. 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 16oC click Green House Cooling

For Day-Night Temperature Balancing at 24oC (Free AC) click  Day & Night Temperature Balancing with PCM

 

Free Cooling for BT Shelters (Telecom Shelter)

Weather Information

Month	Ahmedabad		Bhopal		Hyderabad		Jaipur		Lucknow		Nagpur		New Delhi
	Mean Temp.C		Mean Temp.C		Mean Temp.C		Mean Temp.C		Mean Temp.C		Mean Temp.C		Mean Temp.C
	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max
Jan	11.7	28.4	10.2	25.	14.7	28.6	7.8	22.5	6.9	22.6	12.4	28.6	7.3	21.1
Feb	13.8	31.3	12.4	28.6	17.0	31.8	10.7	25.7	9.3	26.0	15.0	32.1	10.1	24.2
Mar	18.8	36.0	17.1	33.6	20.3	35.2	15.8	31.5	14.2	32.2	19.0	36.3	15.4	30.0
Apr	23.4	39.9	21.8	38.3	24.1	37.6	21.4	37.0	20.5	38.1	23.9	40.2	21.5	36.2
May	26.2	41.8	25.5	40.7	26.0	38.8	25.4	40.3	24.7	40.5	27.9	42.6	25.9	39.6
June	27.0	38.4	25.3	37.0	23.9	34.4	27.2	39.3	27.1	38.7	26.3	37.8	28.3	39.3
July	25.7	33.3	23.1	30.6	22.5	30.5	25.5	33.9	26.1	33.6	24.1	31.5	26.6	35.1
Aug	24.8	31.9	22.4	28.8	22.0	29.6	24.3	32.0	25.6	32.5	23.6	30.4	25.9	33.3
Sept	24.1	33.4	21.4	30.5	21.7	30.1	22.9	33.2	24.3	33.0	22.9	31.8	24.4	33.9
Oct	20.9	35.8	18.4	32.0	20.0	30.4	18.6	33.4	19.0	32.5	19.8	32.6	19.5	32.9
Nov	16.5	33.2	14.1	29.0	16.4	28.8	13.1	29.0	11.8	28.9	14.9	30.4	12.8	28.3
Dec	13.0	29.8	10.9	25.9	14.1	27.8	9.1	24.4	7.4	24.1	12.1	28.2	8.2	23.0

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

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

40 to 45 oC+	for   4hours
36 to 40 oC	for   8 hours
27 to 36 oC	for 12 hours

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

No. of Hours in a day	Ambient Temp.C	ShelterTemp. w/o cooling	Shelter Temp. with 36C PCM	Energy Load in KWH
4	40-45+	50-55 C	38-40 C	5KWH   Discharging
8	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 ^oC is well suited for the job. Depending on the size of BTS and ambient conditions, the Energy load will vary.

The PCM of Melting Point 36^oC is well suited for the job. Ideally we must have enough PCM to take care of uncertainties. For a big Shelter, we propose to have 100 kg of PCM of >200 Kilo Joules/kg which means 20000 KJ for the system. We can have profiles of PCM filled panels on a rack. This will store 20000 KJ for the system. 20000 KJ means 20000/3600 = 5.55 KWH. For a small Site 50Kg of material will be enough. This presentation is made for starting an interaction with user. The user may evaluate, amend and interact with us.  Please check our write-up on Latest^TM 36S. Depending upon the need one can select, Latest 25™S, Latest 30™S, Latest 45™S salts that are similar to Latest 36™S 

TECHNO-COMMERCIAL STATEMENT OF PCM PRODUCT PHASE CHANGE MATERIAL S-series Latest™

PCM Energy P. Ltd.	PCM Latest™	PCM Latest™	PCM Latest™	PCM Latest™
Product	Latest™32S	Latest™34S	Latest™36S	Latest™48S
Series	S-series Latest™
Description	Viscous Semi-Solid near Phase Change Temp.
Appearance	Cream or Gray
Base Material	Inorganic Salts
Phase Change Temp.	31-32oC	33-34oC	36oC	48oC
Sub Cooling @ 1000 cycles	Small	Small	Small	Small
Specific Gravity	1.45	1.45	1.45	1.45
Latent Heat Theoretical	230 Joules/g	250 Joules/g	260 Joules/g	260 Joules/g
Latent Heat Practical	>200 Joules/g	>220 Joules/g	>230 Joules/g	>230 Joules/g
Spec. Heat	2 Joules/g oC	2 Joules/g oC	2 Joules/g oC	2 Joules/g oC
Thermal Cond	0.6Watt/m oC	0.6Watt/m oC	0.6Watt/m oC	0.6Watt/m oC
Congruent Melting	Yes	Yes	Yes	Yes
Flammability	No	No	No	No
Hazardous	No	No	No	No
Thermal Stability	> 10000 cycles	> 10000 cycles	> 10000 cycles	> 10000 cycles
Max. Operating Temp.	100oC	100oC	100oC	100oC
Rates	Available on request

Latest^TM 32S, Latest™ 34S, Latest™ 45S salts are similar to Latest™ 36S.

Latest^TM36S

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:: 36^oC. There can be some freezing/melting in 3^oC 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 20^oC to 40^oC. 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.
Max. Operating Temp.: 100^oC

------ PCM filled Panels ---------------------------------------- PCM filled Pipes ----- PCM filled SS Ball

 
Aluminum Bottles ----- HDPE Balls -------- SS Balls -----------------Jacket ---

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
Nesbit Road, Mumbai 400 010, INDIA
TEL: 91-22-23770100,  23774610, 23723564. FAX: 91-22-23728264.

Cell Call to Anmol: +91-9821870100
USA & Canadian Customers may Call 773-829-5811

Email: anmol@pcmenergy.com

Copyright and Usual Disclaimer is Applicable.
Last updated: 02 April, 2012.

Electronic Cooling
Neatly Packed PCM Profiles in BTS Telecom Shelter

Natural Air-conditioning with PCM in Roof

PCM Phase Change Material Cooled AC Air Conditioning done in Netherlands

Phase Change Material PCM Products Manufacturers

Muby Chemicals Old Spice: Manufacturing since more than Three Decades:
Ammonium Chloride	Calcium Chloride	Magnesium Chloride	Potassium Chloride
Sodium Acetate	Sodium Diacetate	Sodium Thiosulfate	Zinc Chloride
Best Selling IP BP USP FCC ACS Grades of Chemicals by Anmol Chemicals
Ammonium Chloride	Benzyl Alcohol	Boric Acid	Borax; Sodium Borate
Calcium Chloride	Calcium Hydroxide	Calcium Oxide	Calcium Sulfate
Calcium Phosphate	Calcium Saccharate	Chromic Chloride	Citric Acid
Gentian Violet	Magnesium Chloride	Magnesium Sulfate	Manganese Chloride
Manganese Sulfate	Methylene Blue	Maleic Acid	Potassium Chloride
Potassium Acetate	Potassium Phosphate	Sodium Acetate	Sodium Bicarbonate
Sodium Phosphate	Sodium Hydroxide Pellets	Sodium Thiosulfate	Sodium Sulfate
Sodium Propionate	Zinc Chloride	Zinc Acetate