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寶加國際有限公司寶加國際有限公司

BOCA INTERNATIONAL LIMITEDBOCA INTERNATIONAL LIMITED

寶加寶加相相變變熱蓄熱蓄能能系系統統Boca Phase Change Material Thermal Energy Storage SystemsBoca Phase Change Material Thermal Energy Storage Systems

Reduce >50% Global Warming EffectReduce >50% Global Warming Effectdue to Air Conditioning Systemsdue to Air Conditioning Systems

  BocaBocaPCMPCMTMTM

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NATURAL ALTERNATIVE TO REDUCE ENERGYNATURAL ALTERNATIVE TO REDUCE ENERGY

INTRODUCTION;INTRODUCTION;

HOW DOES IT WORK ?HOW DOES IT WORK ?Thermal Energy Storage (TES) reduces the size of

heating and cooling machinery by means ofspreading the day / peak time load over either

night / off-peak times as in the case of Full Storage

TES systems, or alternatively over a 24 hour period

in the case of Partial Storage TES systems. Hence,any type of TES system can not only be

considered as a useful tool to reduce the overall

environmental impact for a given cooling / heating

application but also it offers significant operational

cost savings.

BocaPCM-TES-Panel containers can be filled with any of the following PCM solutions to satisfy many HVAC and Refrigeration

applications. All the current BocaPCM solutions are non-toxic and natural substances and therefore BocaPCM-TES systems offeran environmentally friendly solution for modern day cooling and heating applications.

Stress & StrengthStress & Strength

Tests;Tests;

PressurePressure

MechanicalMechanical

strengthstrength

Life cycleLife cycle

Point impactPoint impact DropDrop

LoadingLoading

CorrosionCorrosion

High ImpactHigh Impact

Thermal Tests;Thermal Tests;

 

FreezingFreezing

MeltingMelting

Super coolingSuper cooling

SuperheatingSuperheating

ThermalThermal

propertiesproperties

LongLong--termterm

stabilitystability

Thermal Energy Storage

(TES) is the temporary

storage of high or low

temperature energy for later

use. It bridges the gap

between energy requirement

and energy use.

 A thermal storage application

may involve a 24 hour oralternatively a weekly or

seasonal storage cycle

depending on the system

design requirements. Whilst

the output is always thermal,

the input energy may be either

thermal or electrical.

BocaPCM-TES-Panel conceptis based on custom-made

HDPE plastic containers filled

with our Phase Change

Materials (PCM) solutions

which have very wideoperating temperatures

between +8+8ºC(+46C(+46ºF)F) & +117+117

ºC(+273C(+273 ºF)F).

BocaPCM-TES-Panel custom-made HDPE

plastic containers are filled with BocaPCM

solutions and the filling screwed cap fully UltraSonic Welded after filling in order to ensure safe

and reliable operation.

The design of plastic container incorporates

internal support columns as well as externalguide circles so that the containers can be

stacked on top of each other forming a self-

assembling large heat exchanger within the tank.

The self-stacking concept can be applied for

both water and air circuits and the gap between

each container provides an ideal flow passage

with a large heat exchange surface.

FEATURES;FEATURES;

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INNOVATION FOR ENERGY SAVING TECHNOLOGIESINNOVATION FOR ENERGY SAVING TECHNOLOGIES

BENEFITSBENEFITS

TANK DESIGN;TANK DESIGN;Generally concrete tanks are either built buried below

ground level and the top of the tank used as parking or

andscape areas or alternatively within the basement

area as part of the foundations. Tanks ideally should

be constructed as close as possible to chillers and load

o minimise the pipe work and pumping energy

penalties. If the system requires pressurised tank acylindrical tank can be constructed to accommodate

BocaPCM-TES Panels with minimum by-pass.

BocaPCM-TES Panels can only be stacked up to aheight of 2.6 m (8 ½ ft) level and therefore the height

of the tank is restricted to around 3m (10 ft) and the

oot print of the tank can be adjusted around this limit.

n principal.

Furthermore, if the required storage capacity is too large and the design requires multiple tanks, they can be arranged either in

parallel or series format to suit the application and available space. Typically the depth of the tank will be 2.6 m (81/2 ft) inside

dimension which corresponds to approx. 52 BocaPCM-TES Panels high and 150mm (6”) of head room above the containers.

Therefore, to estimate the approximate rectangular tank size and shape one can use the following formula inline with BocaPCM-

TES-Panel capacity table.

FLEXIBLE SYSTEMFLEXIBLE SYSTEM

The overall machinery capacity and TES capacity can beexactly matched to system loads.

INCREASED CAPACITYINCREASED CAPACITY

 As a retrofit application, the additional TES load may increase

the system output without any additional machinery.

QUICK RESPONSEQUICK RESPONSE

BocaPCM-TES panels offer quicker response in comparison

with any other TES systems on the market.

REDUCED MACHINERYREDUCED MACHINERY

Shifting some of the peak load may enable designers to

reduce the main machine size.

GREEN SOLUTIONGREEN SOLUTION

Reduced machinery size, energy consumption results in both

direct and indirect CO2 emission.

LOWER MAINTENANCE COSTLOWER MAINTENANCE COST

Machinery runs for longer periods without any start / stop

and therefore it offers a far more reliable operation.

REDUCED RUNNING COSTREDUCED RUNNING COST

Load shifting provides reliable operation and lower annual

electricity / energy running costs.

STANDSTAND--BY CAPACITYBY CAPACITY

In case the main machinery fails, the stored energy can be

utilised to handle the system loads, hence, providing a

degree of back up facility.

SI Units;

Load (kWh)Load (kWh)

----------------------------------------------------------------------------------------- = Length (m) x Width (m)= Length (m) x Width (m)

ocaPCM Capacit yocaPCM Capacit y (kWh/m3) x 2.6(kWh/m3) x 2.6

IP Units;

Load (TRh)Load (TRh)

-------------------------------------------------------------------------------------------------- = Length (ft) x= Length (ft) x Width(ftWidth(ft))

BocaPCM Capacit yBocaPCM Capacit y (TRh/m3) x 8.528(TRh/m3) x 8.528

WATER SYSTEMWATER SYSTEM  AIR SYSTEM AIR SYSTEM

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寶加國際有限公司寶加國際有限公司 BOCA INTERNATIONAL LIMITEDBOCA INTERNATIONAL LIMITED456, Shui Lau Tin, Pat Heung, Yuen Long, N.T., Hong Kong.

香港新界元朗八鄉水流田456號Tel: +852-31766028 Fax:+852-31766099 e-mail : Dr.RichardChan@Gmail.com 

WORLD LEADER IN ENERGY SAVING TECHNOLOGIESWORLD LEADER IN ENERGY SAVING TECHNOLOGIES

TECHNICAL SUPPORT:TECHNICAL SUPPORT:

Boca International Limited has been setup since 1992 in Hong Kong and is now spending full effort in

Environmental Energy Saving Solutions research & development by means of Inorganic Phase Change Materialand offers full system design support to assist in proper selection and integration into existing or new installations as

part of our customer commitment.

FREE IMPORT TAX TO CHINA (CEPA):FREE IMPORT TAX TO CHINA (CEPA):Our factory in Hong Kong has been approved by Hong Kong & China Government as one of the CEPAmanufacturer in Hong Kong, as a result, there will be no import tax for our products to be delivered to China.

JOB REFERENCE;JOB REFERENCE;