Dankzij de toepassing van PCM's (Phase Changing Materials) kunnen gebouwen passief worden gekoeld en/of verwarmd, in principe zonder dat er een koelinstallatie met koudemiddel aan te pas komt. In deze praktijkcase wordt aan de hand van een voorbeeld uitgewerkt wat de mogelijkheden zijn. Lees alles over F-gassen op http://www.koudeenluchtbehandeling.nl/f-gassen-dossier

1. Active supported cooling / heating
with PCM’s
smart energy saving solutions
global-E-systems
E-mail: info@global-E-systems.com
P.O. Box 83 – 2950 AB Alblasserdam
The Netherlands

2. Our mission
To develop long term sustainable energy systems.
Therefore it is necessary that we need a new creative
way of thinking and acting.
In using what nature offers us without damaging flora
and fauna.
For significant reduction of CO2 emissions.
To avoid global warming and melting of the polar ice.
And to offer structural energy saving solutions for the
building market.

3. • PCM’s fits perfectly in architectural concepts and will add
significantly -up to 75%- of energy savings.
• PCM’s have the opportunity to become a standard in new
building architecture, but mainly in renovation projects.
• Because of a growing energy awareness and predicted exploding
costs of energy, many architects, engineers, building material and
air conditioning manufacturers announce to integrate energy
saving solutions in their projects and products.
• PCM’s can be compatible with various types of climate systems.
• It is estimated that in 2018 10% of all new and renovated
buildings will be PCM related.
Market opportunities for PCM’s

4. The function of PCM…
solid melting liquid
sensible sensiblelatent
Energy
Temperature

5. Such as water
latent sensible
335 kJ 335 kJ

1 K g a s s e r
0 ° C

1 K g W asse r
80°C
1 kg ice 1 kg water 1 kg water
0°C 0°C 80°C

6. Light weight constructions versus heavy weight
Masonry Concrete Wood Insulation PCM
Comparison of the heat storage capacity

7. PCM types
0
100
200
300
400
500
-100 0 100
Energy[kJ]
Melting temperature [°C]
hydrated salts
paraffines
watery salt solutions
eutectics
water
GES

8. Technical data of some PCM’s
PCM* Melting point
in ° C
Crystallization
point in ° C
Latent heat
in kJ/kg
Heat capacity
(kJ/kg K)
Heat
conductivity
(W/m K)
solid / liquid
PCM8 9 7 185 3,0 0,6 / 0,54
PCM18
GEL
19 17 190 3,0 0,6 / 0,54
PCM20
GEL
21 19 215 3,0 0,6 / 0,54
PCM36 38 34 230 2,0 0,6 / 0,5
PCM58 60 56 235 2,5 1,9 / 1,0
PCM80 82 78 295 1,1 1,2 / 0,5
* PCM with a melting / crystallization point of 0°C and lower on request.

9. Field of PCM applications
Active supported cooling / heating of:
Office buildings
Domestic
Health care (hospitals, MC, elderly homes)
Schools
Telecom
Data centers
Production plants
Green houses
Transportation of medical products, food and
plants etc. (passive)

10. Warm and uncomfortable

11. +
■ Aluminium panels for ■ PCM18 mats 570x570mm
excellent heat conductivity or PCM20 or PCM22
■ Any RAL colour available ■ Each mat contains 2kg PCM
Simple solution for standard suspended ceiling systems
and perfect for renovation projects

12. Ventilated PCM-ceiling night time

13. Ventilated PCM-ceiling day time

14. Cool and comfortable environment

15. Operating principle of a standard chilled beam

16. Operating principle of PCM-chilled beam (day time)

17. Operating principle of a PCM-chilled beam (night time)
Valve open

18. Principle lay out cooling/heating all air system
with AHU + PCM-chilled beams
Individual room control with VAV terminals

19. Other possible PCM-encapsulations

20. Possibilities for PCM-underfloor heating systems
+

21. Possibilities for PCM-climate ceilings
+
PCM-mats
570x570 mm with
PCM18, 20 or 22

22. An existing water cooled climate ceiling can be
equipped with PCM18-mats.
• Power reduction of the chiller possible up to 75%.
• Charging during night time low tariff hours.
• When the outside temperature during night time is low enough a dry cooler
can be used for charging.
• In this case a very energy efficient climate system with low maintenance
costs.
• Chiller is only needed for peak loads and/or cooling of the required amount
of fresh air.

23. PCM’s in hydraulic systems

24. PCM-solar collector
• Integration of a traditional vacuum tube solar collector and
PCM-storage.
• Easy mounting and safes interior space.
• Available hot water quantity ≈ 80 -150 L.

25. General system benefits
Less energy based on 2600 hours use of the building a year
(W-Europe):
Saving on electrical energy 9,3 kWh per net m² floor
surface for cooling.
Saving on natural gas 1,9 m³ per net floor surface for
heating (colder climate zones).
Reduction of CO2 emissions of 9 kg/m².
COP value of 250-500. With other words an energy saving
potential of more than 50%.
Reduction of electric power and installation equipment.
Installation costs normally the same as traditional.
Shift of eventually necessary additional energy to night
times at lower costs.

26. Examples of active PCM-systems
Active storage systems in combination with
chillers, heat pumps, cogeneration, solar energy etc.
Suitable for heat storage as well for cold storage.
Heating, air conditioning and industrial
refrigeration.
Optimum use of sustainable and waste energy sources.
Shifting possible to low tariff hours.
Reduce installed capacity with 30–75%.

27. Advantages of reduction of the power
connection!
• Easier application of sustainable energy sources,
such as:
Wind energy
Solar energy
Waste energy
But also:
Less maintenance
So lower operating costs