Loops of small diameter polyethylene-coated copper tube are buried between 50cm and 60cm below the surface of the garden of the house to form a captor through which refrigerant fluid is pumped, typically R407c blend. A scroll compressor and a stainless steel plate heat exchanger within the generator unit complete the circuit to transfer the energy captured from the soil into the house.
The energy taken from the soil is quickly and continually replaced by sunlight, wind and rainfall, but at the same time the captor is protected from sudden ambient temperature changes. The use of this free energy enables a COP (coefficient of performance) of between 3.9 and 5.1, which means that for every kW of electrical energy consumed to operate the generator, the system produces between 3.9 and 5.1 kW of energy to heat the building.
In order to save precious and expensive space within the house itself, the generator unit is designed to be very compact, and most importantly, to be installed outdoors. Here, it can be mounted close to an outside wall, or lost in amongst the plants and bushes, which incidentally are unaffected by what is going on beneath them. Only a small control panel, together with the water pump and connection components are installed inside the house, offering very practical space benefits in garages or utility rooms, the normal hiding place of traditional heat-pump based heating systems.
Researchers use light to remotely control curvature of plastics
23.03.2017 | North Carolina State University
TU Graz researchers show that enzyme function inhibits battery ageing
21.03.2017 | Technische Universität Graz
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
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