Environmental Control ApplicationsPhase Change Material Thermal Energy Storage Applications

Global PCM based Building Services Application Examples

phase change material thermal energy storage passive cooling ice packs pcm cold storage energy saving

 TheThe royal wolverhampton hospital, uk hot & chilled water energy storage system (305kb)    As the hospital heating and cooling loads vary significantly a simple 20 m3 hot water TES tank is found to be the optimum solution and provides 930 kWh (3,173 MBtu) heating load shifting while a seperate 30 m3 PCM tanks filled with +10C (50F) FlatICE containers provides 1,500 kWh (426 RT-h) chilled water cooling load shiftng capability which enbaled the designers to reduce both heating and coling equipment sizes as much as by half. The royal wolverhampton hospital, uk hot & chilled water energy storage system (305kb)    As the hospital heating and cooling loads vary significantly a simple 20 m3 hot water TES tank is found to be the optimum solution and provides 930 kWh (3,173 MBtu) heating load shifting while a seperate 30 m3 PCM tanks filled with +10C (50F) FlatICE containers provides 1,500 kWh (426 RT-h) chilled water cooling load shiftng capability which enbaled the designers to reduce both heating and coling equipment sizes as much as by half.  The royal wolverhampton hospital, uk hot & chilled water energy storage system (305kb)   As the hospital heating and cooling loads vary significantly a simple 20 m3 hot water TES tank is found to be the optimum solution and provides 930 kWh (3,173 MBtu) heating load shifting while a seperate 30 m3 PCM tanks filled with +10C (50F) FlatICE containers provides 1,500 kWh (426 RT-h) chilled water cooling load shiftng capability which enbaled the designers to reduce both heating and coling equipment sizes as much as by half.  The royal wolverhampton hospital, uk hot & chilled water energy storage system (305kb) The royal wolverhampton hospital, uk hot & chilled water energy storaThe royal wolverhampton hospital, uk hot & chilled water energy storage system (305kb)               Thermal Energy Storage   

As the hospital heating and cooling loads vary significantly a simple 20 m3 hot water TES tank is found to be the optimum solution and provides 930 kWh (3,173 MBtu) heating load shifting while a seperate 30 m3 PCM tanks filled with +10C (50F) FlatICE containers provides 1,500 kWh (426 RT-h) chilled water cooling load shiftng capability which enbaled the designers to reduce both heating and coling equipment sizes as much as by half.

 H hARAMAIN HIGH SPEED TRAIN STATions,                  Phase Change Material   

jeddah / makkah / madhina / kaec, K.S.A. pcm energy storage   system (177 kb)   

High speed trains serving between Jeddah & KAEC and Holly cities connected with local stations in each city but as the ambinet temperarures during day time exceeding 55C (131F) levels as oposed to night time of 30C (86F) . Hence, a simple +10C (50F) PCM energy storage using conventional 7C (45F) to charging the TES tanks  ( Jeddah = 3,200 kWh (909 RT-h) / Madhina 3,200 kWh (909 RT-h) / KAEC 3,200 kWh (909 RT-h) / MAKKAH (10,000 kWh ( 2,840 RT-h) over night enables the designer not only shifting day peak loads to night time and effectively reducing the number of chillers required for the peak load but also by running the chillers at night time with lower ambinet conditions reduced the actual power consumption as much as 35~45% in comparison with the day operation for a given cooling load and furthermore rnning cooler chillers increase the life of the machines and reduce the maintennace cost in the long run.

WESTERN SYDNEY UNIVERsity, bulding 24, sysdney, australia PCM energy storage system (177 kb) Phase Change Materials      

Cosidering a large swing between day and night temperature as well as a significant cost difference between peak and off-peak utility cost an addition of a 13 m3 (795 USG) tank filled with +10C (50F) FlatICE containers providing 550 kWh (156 RT-h) load shifting capability offered the end user a flexibility, reducen runnig cost and further stand-by capability.

STONE 34 COMPLEX, SEATTLE, WA, USA PCM energy storage (972kb)                                                                     thermal energy storage

This building is rewarded the LEED 2009 Platinum Ward and achieved 31/37 score and PCM energy storage using a 25 m3 (6,625 USG) tank filled with +10C / 50F FlatICE containers providing 1,250 kWh (355 RT-h) load shifting capability for the operator provided a useful to achieve this high score.

STAOIL HQ, BERGEN, NORWAY CENTRAL COOLING PCM ENERGY STORAGE (220kb)                                          thermal energy storage  

Conventional chilled water system complimented using 30 m3 (~8,000USG) tank filled with +8C (47F) FlatICE containers providing 1,300 kWh (369 RT-h) load shifting capability from peak periods to off-peak periods as well as providing a stand-by cooling capability without the need for a generator.

ROYAL PHYSCIAN HQ, LONDON, UK CHILLED WATER PCM ENERGY STORAGE (283kb)                                   phase change material

As being in central London the only way to add any TES capacity was to build a 40m3 site built sectional pre-insulated rectangular tank which is filled with 8C (47F) to compliment the existing chilled water circuit providing ~ 2,000 kWh (568 RT-h) load shifting capability as well as increasing the cooling capability.

NETHERLAND CANCEr INSTITUTE, AMsterdam, holland Tes (189k)                                             phase change material

Using FlatICE filled with (47F) PCM in a 45 m3 (~12,000USG) tank chilled water circuit can shift the peak loads as much as 2,000 kWh ( 568 RT-h) and provide a full stand-by capability in case any power failure as well as utilsing the low night ambient and utility cost reduce significant annual running cost.

CLeantech-2 zero energy building, singapore (219 kb)                                                        phase change material 

State of the art Cleantech-2 building incorporates 11.5C (52.7F) PCM tank with a capacity of holding 28,000 FlatICE containers providing 7,200 kWh (2,00 RT-h) enegy storage capacity to shift the peak loads.

BERGEN AIRPORT, NORWAY-T3 ENERGY CENTRE TES APPLICATION (275 kB)                                                         phase change material 

New Terminal 3 for the Bergen Airport utilise 4 x 60 m3 10C (50F) PCM tanks with ~10MWH (2,840 RT-h) energy storage to shift the peak loads and spread the cooling loads over 24 hours and effectively reduce the cooling machinery, peak power demand and annual running cost by storing excess capacity from the chillers at overnight lower ambient & low load conditions.

BANK SOUTH PASIFIC DATA CENTRE COLING BACK UP APPLICATION (1.1MB)                                                     phase change material

PCM based TES tanks with 420 kWh (120 RT-h) capacity filled with +8C (47F) FlatICE containers provide a back up facility for the data centre cooling as opposed to generators to run the cooling machinery. In case of any power failure these PCM tanks handle the cooling without the chillers.

University of Bergen, NORWAY, Large Scale District Cooling Application (980 Kb)                                         phase change material

PCM energy storage spreads the loads over 24 hours periods and therefore a carefully balanced PCM energy storage not only reduces the initial investment cost but also it offers reduced operational cost. Utilising the diversification for a large scale energy centres like University of Bergen, Norway PCM energy storage(12,000 kWh (3,000 Ton-hr) using +10C (50F) PCM material acts as a buffer to handle large spikes, hence, steady overall operation for the system.

A video link of the system can be watched http://www.nrk.no/nett-tv/indeks/295683/

Australian Parlement House, Camberra, Australia (1.4MB)                                                                                  phase change material

PCM storage is added for the existing chilled water circuit in order to provide a data centre back up in case of power failure as well as load shifting. In stead of a generator back up to run the chillers this system has a +8C (47F) , 6 m3 (1,590 USG) , 270 (77 RT-h) PCM tank permenantly charged on the supply like of chilled water 5~7C (45~50F) and if the power is lost this stored energy can handle the 2 hours emergency cooling.

Federal Center South, Seattle, USA PCM based Energy Storage System (620 Kb)        phase change material

Redevelopment and modernization of the Federal Center South complex near Seattle, USA funded by the American Recovery and Reinvestment Act, will provide a secure base for the U.S. Army Corps of Engineers.

The building is expected to attain gold certification in Leadership in Energy and Environmental Design from the U.S. Green Building Council. A number of energy saving technologies are incorporated as part of the design such as extensive use of natural daylight, and an energy-efficient heating, ventilation and air conditioning system that uses under-floor air distribution. 1,050 kWh (300 ton-hr) using  +13C (55F) PCM energy storage is also selected as part of this energy reduction design. Further details can be found;

www.gsa.gov/portal/content/212389                              www.djc.com/news/co/12036961.html                                 www.djc.com/news/ae/12030642

DOHA/QATAR FIFA 2022 Worldcup Stadium

PCM based Solar Air Conditioning Application (1,6MB)              thermal energy storage   phase change material thermal energy storage

Qatar's bid for FIFA 2022 Worldcup, a full scale demostration stadium using only SUN to run air conditioning using PCM energy storage 5,000 kWh (1,420 Ton-hr). Using parabollic solar concentrators oil is heated to drive the absorbtion chiller which in return charged a large PCM tank filled with +10F (50F) FlatICE containers and later once the sun goes down this stored energy provided the cooling for the enclosed stadium as a totally off-grid system.

www.cibsejournal.com/search/ (Desert Bloom)  /  www.worldfootballinsider.com/Story.aspx  / thetechjournal.com/off-topic/qatars-2022-world-cup-stadium.xhtml

EIDOS, ITALY Heat Pump Application (1Mb)                                                                                                                              phase change material

Geothermal heat pump system can heat or cool while using the ground source but this building using PCM based TES both hot (1,200 kWh (4,095 MBtu) using 46C (115F) PCM solution) and cold ( 900 kWh ( 256 RT-h) using +10C (50F) PCM soluton) side if the H/P are stored above ground in TES tanks and therefore this new concept simultaneously can prove heating and cooling from a single central plant to control both the space temperature but the humidity too as this was critical for the Italian Electronic factory application.

Gosnel City District Cooling, Australia (875Kb)                                                                                           phase change material

Large scale coolth PCM storage as part of the district chilled water circuit applied for a West Australian office / city centre complex. Utilising the existing machinery the new extension cooling loads are covered by simply running the existing system over-night and store the surplus capacity in 80m3 (21,200 USG) site built rectangular tank filled with 12,500  FlatICE using +8C (47F) PCM solution providing 4,000 kWh (1,136 RT-h) cooling capacity. 

Nottingham Passive Cooling,UK (180Kb)                                                                                                      phase change material

Passive ceiling heat pipe + PCM comfort cooling application in the UK. Using standard ceiling fans and PCM+Heat Pipe arrangement provided a hybrid 22C (71F) PCM based dynamic passive cooling. Over-night exposed fin section of the PCM+Heat Pipe acts as condenser while the other side froze the PCM and during day-time the same exposed section reveresed and acts as evaporator and provide cool downward air for cooling.

Water-Water COLT Heat Pump TES System (500Kb)                                                                                   phase change material

Water based heat pump buffer system using +22C (68F) PCM to stabilise the water heat balance circuit. Normal practice is to use boiler and chiller to balance and keep this common circuit around  20~24C (68~72F) against over-heating and over-cooling. This process follows a 24 hour cycle and over a 24 hours period main circuit heated part of the day but later cooled and therefore chiller and boiler has to kick in respectively to balance the crcuit. A PCM tank as art of this circuit may eliminate the need for a chiller and boiler by absorbing excess heat and cold as a shock absorber and maintain the main circuit within the operational limits and not having boiler / chiller energy consumption a PCM energy storage offers a significant reduction in running cost and environmentally friendly option.

Passive Cooling Application School, UK (315Kb)                                                                      passive cooling pcm  passive cooling pcm

A passive both energy and maintenance free cooling concept using PCM tubes charged by the cold night ambient within the ceiling void and stored energy during day-time avoid overheating the space. 

PTM ZEO Brochure (1.6Mb)                                                                                                                                                  thermal energy storage

Zero energy building using cool PCM storage to shift the cooling load for day-time to night-time for Malaysian ambient conditions. Further details can be found http://www.youtube.com/watch?v=kDdvL2N7LUI

www.futurarc.com/previous_edition/zeroenergy.cfm

www.ymparisto.fi/download.asp

www.scandasia.com/viewNews.php

National Theatre, LONDON, UK FlatICE CHP System Integration (290 Kb)                                                             thermal energy storage

PCM energy storage extends the operation periods of a CHP. Rather than shutting down the CHP system by adding a cold +10C (50F) PCM energy storage (2,000 kWh (568 Ton-hr) simply it can either use the surplus waste heat or electricity to charge a coolth energy storage while providing the required heat or electricity output. This concept has been successfully applied for the National Theatre site in London whereby the building had requirements for all three services i.e. electricity, cooling and heating all year round.

China Shipping Office Building, Felixstove, UK FlatICE System (435Kb)                                                       phase change material

Office building using excess capacity of the chillers over-night providing a cool PCM storage TES for the passive chilled ceiling circuit for a UK office building application. Sensible cooling loads of the building is taken out using free cooling circuit having +13C (55F) PCM solution packed in FlatICE containers providing 1,200 kWh ( 341 RT-h)  TES capacity which provided water 15C ( 59F) for the chilled ceiling and if and when required chillers run at +5C (45F) to dehumidity the building during day times and also if the ambient does not allow free charging of the PCM tank they run during off-peak night periods.

Melbourne City Council-CH2- PlusICE Application (1.2MB)                                                                            thermal energy storage

Free office building cooling using PCM to store energy over-night and use this stored energy during day-time. For full details refer to http://www.melbourne.vic.gov.au/Environment/CH2

Burnley College, UK Heat Pump Application (200Kb)  

Large Scale ground source heat pump PCM energy storage application for both hot and cold side of the heat pump circuits using BallICE product.

Pendle Vale, Lancs., UK Heat Pump Application (200Kb)

Large Scale ground source heat pump PCM energy storage application for both hot and cold side of the circuits using FlatICE product in pressurised tanks.

Shuttleworth College, UK Ground Source Heat Pump Application (200Kb)

Large Scale ground source heat pump PCM energy storage application for both hot and cold side of the circuits using FlatICE product in atmospheric tanks.

Cool Storage (270Kb) 

A typical cool storage application for new and retrofit chilled water TES application.

Consultant Engineering Journal article of large scale heat pump PCM energy storage application (654Kb) 

By simply applying PCM energy storage on both Hot and Cold side of the conventional system, eliminating the ground usage for a commercial heap pump application.

Commonwealth Games Village, AUSTRALIA solar heating storage system (493Kb)                   pcm energy storage

Using PCM Stainless Steel balls filled with +58C ( 136F) PCM material, designers managed to increase the standard domestic solar hot water calarifier capacity three fold and in return this higher capacity satisfied the excessive hot water demand during the games as the occupancy levels evry almost three times than an average family as these houses are designed to be offered to public after the games.

Air Based PCM Energy Storage (270Kb)

PCM based energy storage concept offers energy free building services using air as the media for both new and retrofit passive cooling / heating TES applications. By simply storing cold energy over-night for day use and vice cersa for the night heating, PCM based air TES provide energy free system.