Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

CryoSol®Plus - Air conditioning of buildings with phase change slurries

03.12.2014

When it is very warm outside, the air conditioning system takes care of a consistently cool room climate inside the house. The water paraffin mixture CryoSol®Plus could make the purchasing of an air conditioning system for office buildings superfluous in the future and at the same time considerably unburden the power grids. Fraunhofer UMSICHT is researching areas of use for phase change slurries (PCS).

Cryosol®Plus looks like milk. But don't even think about drinking it. While the composition made of paraffins and water is non-poisonous, it still isn't all that tasty. Paraffin is known as wax or as maintenance oil in Vaseline. In CryoSol®Plus, the paraffins serve – finely dispersed – as phase change material (PCM) for heat and hold storage.


CryoSol®Plus – Dispersion made of water and paraffin.

© Fraunhofer UMSICHT


Capillary tube mats are similar to the principle of the human nervous system.

© Fraunhofer UMSICHT

The principle: When the dispersion absorbs heat, the solid tiny paraffin balls "melt" into paraffin droplets and store the heat. Once the solution cools down, the droplets become solid again. In CryoSol®Plus, the paraffin exists finely dispersed in water as a heterogeneous blend of substances.

CryoSol®Plus – two to three times the energy density of water

Jointly with the RWTH Aachen university, Fraunhofer UMSICHT has researched the utilization of CryoSol®Plus in supply systems. In principle, the blend can serve as heat transfer fluid, as storage medium for thermal systems, and for cooling. "In a temperature range from 5 to 20 degrees Celsius it is a good alternative to cold water, since it features a two to three times higher energy density", explains Dipl.-Ing. Tobias Kappels, researcher in the Thermal Energy Storage and Systems group.

In the project, the dispersion was utilized for the storage of nocturnal cold to then dissipate it during the day on a room-by-room basis via capillary tube mats in the ceiling. The idea for constructing the capillary tube mats originates from nature and corresponds to the network of fine nervous system under our skin which not only provides us with nutrition but also serves to regulate body heat. In buildings, the capillary tube mats in ceilings, walls, or floors are utilized for combined area heating or cooling.

Higher transport capacity, better storage

In the project, the dispersion was manufactured, characterized, and tested in a heating/cooling system, and the substance properties of the dispersions were modeled. The utilization of CryoSol®Plus could significantly increase the transport capacity and storage capability of a distribution network.

The utilization of the dispersion is of interest especially to the manufacturing industry, air conditioning, chemical and automotive industry as well as for cooling devices in the foodstuffs industry.

The project was funded for four years in the context of the framework program EnEff: Wärme (Energy Efficiency: Heat) by the German Federal Ministry of Economics and Technology (funding ID 0327471A).


Weitere Informationen:

http://www.umsicht.fraunhofer.de/en/press-media/2014/crysolplus-pcs-energy-storage.html

Iris Kumpmann | Fraunhofer-Institut für Umwelt-, Sicherheits- und Energietechnik UMSICHT

More articles from Architecture and Construction:

nachricht Smart homes will “LISTEN” to your voice
17.01.2017 | EML European Media Laboratory GmbH

nachricht Designing Architecture with Solar Building Envelopes
16.01.2017 | Fraunhofer-Institut für Solare Energiesysteme ISE

All articles from Architecture and Construction >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Helmholtz International Fellow Award for Sarah Amalia Teichmann

20.01.2017 | Awards Funding

An innovative high-performance material: biofibers made from green lacewing silk

20.01.2017 | Materials Sciences

Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery

20.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>