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.
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16.01.2017 | Harvard John A. Paulson School of Engineering and Applied Sciences
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...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
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...
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...
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...
19.01.2017 | Event News
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09.01.2017 | Event News
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20.01.2017 | Materials Sciences
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