Recycled glass stores “green energy"
Powerful buffer insulated with Poraver
If regenerative energy is used for producing heat, buff-ers are essential. Insulation with expanded glass granulate has a decisive influence here on the efficiency of the longterm storage, in order to lose as little "energy" as possible between feed-in and utilisation.
(firmenpresse) - The company Mall GmbH in Donaueschingen has specialised specifically in underground storage systems that are located outside the building. This means independence from the building situation with regards to space requirements, while construction and any retrofitting can be implemented at any time. The double wall buffers, made of reinforced concrete, are buried in the ground outside the building and connected to the building engineering installation via heat-insulated pipes. The heat loss is extremely low thanks to the compact buffer geometry (favourable ratio of surface to content) and the perfect insulating material.
Particular requirements are placed on the heat insulation so that the buffers can store the obtained heat energy over the longterm without any significant loss of energy. The knowledge gained about insulating materials used in the previous buffer generations has been fully included in the construction of modern buffers. The product managers at Mall took the decision to use Poraver expanded glass granulate after extensive insulating material tests and now use this lightweight material made of recycled glass to insulate the top cavity and the hollow side walls between the inner and outer containers.
The basic properties required by Mall for such insulating materials to be met over the longterm are 100% fulfilled by Poraver:
- Temperature resistant to at least 100 °C
- Aging resistant and durable
- Pressure resistant even if in a soaked condition
- Resistant against water and steam
- Good drying properties
- Insensitive to microorganisms and rodents
- Simple installation
The requirements were tested in in-house test series with the result that the stored heat volume at 60° Celsius is only reduced by just 1.5 Kelvin per day.
Mall has two buffer types in their product range, unpressurised and pressurised. Buffers with volumes containing between 2,000 and 10,700 litres are available.
The subterranean buffers can also be installed under vehicle-access routes as they are designed and con-structed to be pressure-stable. The buffers are suitable for traversing with heavy truck traffic (SLW 60).
Themen in dieser Pressemitteilung:
Unternehmensinformation / Kurzprofil:
Current examples:
The family Bierwirth in Katlenburg near Göttingen had already decided to make use of solar energy when building their house in 2006. In addition to the gas heating system as the main heating source, a solar installation with 10 m² collector surface was installed on the roof during construction. The water heated in this way is stored in a 750 litre combination storage tank and used for warm water supply and to support the heating. In 2009, they decided to use even more renewable energy sources and so reduce their gas consumption drastically. The solar installation was doubled by another 10 m² to 20 m² and a waterheating fireplace stove was also installed. As the house does not have a cellar, the family decided to have a pressurised buffer with a volume of 4,800 litres installed under the garden. The heat energy obtained can therefore be stored for several days without hardly any losses.
Project data:
Building owner, planning and implementation: Family Bierwirth
Delivery: Mall GmbH
Completion: March 2010
System components:
Mall buffer Solitherm
PUD 4800 pressurised, for 3 bar operating pressure.
Contact for further information:
Philip Brdlik,
Marketing and Public Relations
Dennert Poraver GmbH
Mozartweg 1, 96132 Schlüsselfeld, Germany
Telephone: + 49 9552 92977-11
Fax: + 49 9552 92977-26
E-mail: info(at)poraver.de
Internet: www.poraver.de
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Christine Scheib
Mall GmbH
Hüfinger Str. 39-45
78166 Donaueschingen, Germany
Telephone: +49 771 8005-0
Fax: +49 771 8005-100
info(at)mall.info
www.mall.info
Publication free of charge, sample copy requested:
PR office & Editing Service,
Dipl.-Ing./Ma.-Kfm. Dietmar Haucke,
Hohenzollernstr. 59, 56068 Koblenz, Germany
Tel.:+ 49 261 34066,
Mobile: + 49 163 6434066
E-mail: creativ-pr(at)creativ-pr.de
Internet: www.creativ-pr.de
Datum: 10.12.2010 - 02:23 Uhr
Sprache: Deutsch
News-ID 1020536
Anzahl Zeichen: 0
contact information:
Contact person: Philip Brdlik
Town:
96132 Schlüsselfeld, Germany
Phone: + 49 9552 92977-11
Kategorie:
Energy & Utilities
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