POWER CONTROL LIMITED Introducing “PermaFrost” Presented by Ir. K.M. Wong.

POWER CONTROL POWER CONTROL LIMITEDLIMITED

Introducing “PermaFrostIntroducing “PermaFrost””

Presented byPresented by

Ir. K.M. WongIr. K.M. Wong


What is “PermaFrost”

• A super thermal-conductive additive used to improve the efficiency of chillers and refrigeration equipment

• Developed and manufactured in U.S.A.(4 patents between 1990s and 2002)


How it works (1)How it works (1)Lubricating oil contaminated the evaporator & condenser!Lubricating oil contaminated the evaporator & condenser!


Before PermaFrostBefore PermaFrost

Reduced heat transfer

Excessive Laminar friction

Stagnant Oil

Tubing Wall

Tubing Wall

Energy loss

Stagnant Oil

This barrier reduces the heat transfer inside the refrigerant circuit and increases the energy consumption (kWh).


After PermaFrost (1)After PermaFrost (1)Accelerated Heat Transfer

Reduced laminar friction

Stagnant oil dispersal

PermaFrost Thermo-conductive molecules

Refrigerant contacts metal

PermaFrost molecules are attracted to the inner metal tubing. The thermo-conductivity rate is ACCELERATED and laminar friction is virtually eliminated.


After PermaFrost (2)After PermaFrost (2)

Efficient turbulent flow

Stagnant Oil cleared

Accelerated Thermo Conductivity.

Faster Heat Dispersal

PermaFrost Thermo-conductive molecules

Refrigerant

Oil barrier is completely and permanently removed


After Applying PermaFrostAfter Applying PermaFrost

• The insulative oil barrier is completely and permanently removed.

• The inner metal surface is bound by thermo-conductive PermaFrost molecules.

• Heat transfer between the refrigerant and chilled water / air will speed up.

• The compressor will run a shorter time in producing the same cooling capacity.


Advantages of Advantages of “PermaFrost”“PermaFrost”

• Saves over 10% in electricity Saves over 10% in electricity consumed by chillersconsumed by chillers

Reduce Energy !!Reduce Energy !!

Save Money !!Save Money !!

Increase Profits !!Increase Profits !!


Advantages of Advantages of “PermaFrost”“PermaFrost”

• Easy to installEasy to install– just manually pump into the existing lub oiljust manually pump into the existing lub oil

• Zero down time Zero down time

• No mechanical modificationNo mechanical modification

• Extends equipment (compressors) lifeExtends equipment (compressors) life


Suitable ApplicationSuitable Application

Screw CompressorScrew Compressor

Centrifugal CompressorCentrifugal Compressor

Reciprocating CompressorReciprocating Compressor

Scroll CompressorScroll Compressor

PermaFrost may be used in most air-conditioning and refrigeration systems with the exception of absorption chillers.

Systems where PermaFrost can be used are as follows:

And many other refrigeration systems…


CompatibilityCompatibility• Seal Compatibility:Seal Compatibility: Neoprene, Nitrite, Viton, Neoprene, Nitrite, Viton,

PFE, Buna, Nylon, Mylar, Polypropylene and all PFE, Buna, Nylon, Mylar, Polypropylene and all prevalent types of seals used in the HVAC prevalent types of seals used in the HVAC industry.industry.

• Metal Compatibility:Metal Compatibility: Steel, Copper, Aluminum, Steel, Copper, Aluminum, Brass, Cast Iron, Stainless Steel, Silver, Copper Brass, Cast Iron, Stainless Steel, Silver, Copper Alloys and Zinc.Alloys and Zinc.

• Refrigerant Compatibility:Refrigerant Compatibility: Group 1, 2, 3 Group 1, 2, 3 Ammonia, Propane and all prevalent refrigerants.Ammonia, Propane and all prevalent refrigerants.

• Oil Compatibility:Oil Compatibility: Mineral, Synthetic, POE, Alpha Mineral, Synthetic, POE, Alpha Olefins and special blends.Olefins and special blends.


Our Reference Clients


Performance EvaluationPerformance Evaluation

• The efficiency of a chiller is defined by the coefficient of performance (COP)

(KW)Input Power

(KW)Capacity CoolingCOP


Refrigeration CycleRefrigeration Cycle


P – H DiagramP – H Diagram

Cooling Capacity = COP X Power Input ( V X I )

(B)Input Power

(A)Capacity CoolingCOP


Tapping to take Suction Temperature Tapping to take Suction Temperature and Pressure Readingsand Pressure Readings


Collected Data Sent to an AnalyzerCollected Data Sent to an Analyzer


Data sent from the Analyzer to the Data sent from the Analyzer to the RecorderRecorder


Data recorded in every minute Data recorded in every minute


ExampleExampleSavings Due to PermaFrost for a 100 Ton Savings Due to PermaFrost for a 100 Ton

ChillerChillerCooling Capacity = 100 Ton = 352 KW (a) COP = 2.8 (b)Cooling Capacity = 100 Ton = 352 KW (a) COP = 2.8 (b)

Power Input = (a) / (b) = 126KW at full loadPower Input = (a) / (b) = 126KW at full load

Diversity = 0.7 Hours of Operation Per Day = 16 hoursDiversity = 0.7 Hours of Operation Per Day = 16 hours

Yearly Electricity ConsumptionYearly Electricity Consumption= 126 KW X 16 hours X 0.7 X 365 days X $1.26 / KWH= 126 KW X 16 hours X 0.7 X 365 days X $1.26 / KWH= ~ HK$650,000= ~ HK$650,000

• For a savings of 10% after treatment of “PermaFrost” For a savings of 10% after treatment of “PermaFrost”

Total Amount of Savings Total Amount of Savings

~ HK$65,000 per year~ HK$65,000 per year


ENDEND

THANK YOUTHANK YOUIr. K.M. Wong

Power Control Limited

Address: 28/F., Soundwill Plaza,38 Russell Street,

Causeway Bay,Hong Kong

Tel: 2555-6868Mobile: 6770-6062

Email: [email protected]

POWER CONTROL LIMITED Introducing “PermaFrost” Presented by Ir. K.M. Wong.

Documents

compressor permafrost

oil compatibility

refrigerant compatibility

metal compatibility

wong slide

lubricating oil

insulative oil barrier

accelerated heat transfer