BINE information service

One of the pilot buildings of the Solar Decathlon 2014 will now be rebuilt on the university campus Berlin Charlottenburg. The so-called “Rooftop” building, originally designed as a net energy plus residential building, will now be modified to be used as a seminar room and laboratory. Due to additional measurement technology, the students can learn about energy monitoring with a real building as example.  
Post date: 8 Sep 2017
Type: News

Two new salthydrate-based phase change materials (PCM) suitable as storage material in chilled ceilings and centralised cold storage systems were developed within the framework of the project PC-Cools_V, The newly developed PCM store cooling energy with a high energy density and at the temperature level needed for air conditioning enabling the required cooling to be provided very efficiently.
Post date: 28 Apr 2017
Type: News

The new Sankt Franziskus elementary school in Halle went into use in February 2014. A scientific monitoring was initiated to evaluate the energy concept. The results show that the wood constructed school uses 90% less heating energy than comparable schools in Germany. The building envelope including box-type windows meets the passive house requirements. The school is heated by an air-heating system with district heating as energy source. The ventilation is connected to a ground-coupled heat exchanger and can be used to heat or to cool the building.
Post date: 23 Jan 2017
Type: News

Germany's building stock shall be nearly climate-neutral by 2050. To achieve this, the rate of refurbishment has to be significantly increased since the average annual refurbishment rate of the entire building stock is currently less than one per cent. The European Union's energy efficiency directive calls for three per cent.
Post date: 4 Jan 2017
Type: News

The Uhland school in Stuttgart was undergoing renovation to plus energy level during the last 2 years. Now, the construction work is completed and the pupils and teachers can move back into the main building of the school at the beginning of 2017. The building envelope was insulated with high-efficient expanded polystyrene (EPS). On top of the basement slab and at the gable walls vacuum insulation was used. The new windows are triple glazed. All classrooms were equipped with CO2-controlled decentralised ventilation units with heat recovery.
Post date: 4 Nov 2016
Type: News

So far seasonal storage systems, mostly realised as hot water storage systems, had to be rather large in order to use summer heat for heating during the winter. Smaller storage systems tend to cool down too quickly. Therefore seasonal storage systems are mostly applied for housing estates or large consumers. Within the SolSpaces project, scientists are developing and testing a new solar heating system including an evacuated tube air collector and a thermochemical heat storage system to store solar heat for the use in winter.
Post date: 4 Jul 2016
Type: News

Bisher waren saisonale Wärmespeichersysteme (meist ausgeführt als Warmwasserspeichersystems) sehr groß, um die Nutzung von sommerlicher Wärme in der Winterzeit zu ermöglichen. Kleine Speicher kühlen zu schnell aus. Deshalb wurden solche saisonalen Speicher auch meist in Siedlungen oder für Großverbraucher eingesetzt. Im SolSpaces-Projekt des ITW der Universität Stuttgart entwickeln und testen Forscher ein neues solares Heizsystem das Vakuumröhren-Luftkollektoren mit einem thermochemischen Speicher koppelt.
Post date: 4 Jul 2016
Type: News

In Stuttgart’s new Neckarpark district, the energy in the municipal waste water is used via a trough heat exchanger and a heat pump to supply low-temperature heat through a local heating network. In combination with highly energy efficient buildings (undercutting the minimum energy performance requirements by at least 45%) this will lead to a very energy efficient district. Stuttgart’s Neckarpark is one of the demonstration projects in the research initiative “EnEff: Wärme” of the Federal Ministry for Economic Affairs and Technology.
Post date: 22 Feb 2016
Type: News

Researchers from the Saarland University are currently testing the use of capillary tube mats in exterior walls to heat buildings. So far, capillary tubes have been integrated in interior walls, ceilings and underfloor heating systems. Now six millimetre thick tubes are mounted to a concrete façade and are covered by a mortar layer with a high thermal conductivity. A final layer of insulation will be added on top.
Post date: 22 Feb 2016
Type: News

Two minimal invasive refurbishment systems are currently being tested at two multi-family houses in Frankfurt, Germany. The first concept is based on the insulation of integrated ventilation ducts and supply through window opening. The other one consists of multi-functional window modules. Both systems are pre-fabricated and the primary refurbishment measures can be carried out from the outside. The aim is easier handling, improved flexibilty and easier integration with traditional construction processes.  
Post date: 8 Dec 2015
Type: News