According Vistrhof expected use of sewage for energy, especially in the big cities and in the vicin

With the increasing rise in the cost of access to energy in the world, experts are trying to discover alternative ways to get energy. Among these methods used recently: power generation by geothermal heat, but also generated by sewage.
There in the ground story of the sand dollar a lot of energy, where the rise in the earth's story of the sand dollar crust temperature on average every 100 meters by about three degrees. In Germany, there has been a growing awareness of the many uses, which can be used in the framework of the so-called story of the sand dollar energy shift from fossil fuels to renewable energies.
It also provides a warming at the international level is great potential: future scenario presented by the German Center for Air and Space (DLR), commissioned by Greenpeace, acclaimed internationally, where the project is estimated technical potential for geothermal power at double the current global consumption of energy.
Without too much effort can employ heat and cold ground. Just a few meters story of the sand dollar below the surface, there is almost a constant temperature, which is roughly equivalent to the annual average story of the sand dollar temperature story of the sand dollar at each site, which in Germany is equivalent to about six to ten degrees Celsius. The result is the possibility of a simple technique was able to get warm in winter and cool in summer. Fresh air, which is supplied by the buildings through pipes inside the vehicle ground, this air Heating Earth Tbrdh in winter and in summer.
It was such perceptions have been used by buildings in modern offices for years, because it is often a mild climate, sufficient for the air conditioning in the summer: for example, story of the sand dollar is directed heat outside air before entering the Institute "Fraunhofer" German for Solar Energy Systems (ISE) in Freiburg by plastic pipes buried under the depth of six meters from the ground.
There are two different kinds of use of geothermal energy: the use of geothermal heat from the Earth's surface and depths. In Germany, is the use of so-called "deep geothermal energy," a geothermal energy located at a depth of 400 meters from the surface of the earth. Is temperature, which exceeds 100 degrees, heating buildings are directly or to generate electricity. story of the sand dollar
However you need this heat pump often to electricity, and are used with floor heating is so good access to the so-called "energy efficiency", ranging between three and four, which show the efficiency of the heat pump work. This means that one hour of electricity you need to three hours of heating.
In contrast to the deep geothermal energy, geothermal energy, the surface is not enough to heat buildings directly. Vzayadh temperature of the building story of the sand dollar must be used in a heat pump. In Germany, there are 200 thousand story of the sand dollar buildings are warmed by a year in this way, an increase of twenty thousand in the building each year.
The heat pump works like a refrigerator that cools the inside and whose back is hot. Accordingly, story of the sand dollar the heat is extracted from the ground using water pipes, while the water itself is used for heating purposes. Here the water is the equivalent of the back of the refrigerator.
It can also extract heat from sewage relatively warm, explains expert in the field of energy Olaf Vistrhof in the interest of water and electricity in the city of Constance German: "This energy is profitable in the field of heating, especially if we compare with the prices of energy that is steadily rising. "
Has the benefit story of the sand dollar of water and electricity in the city of Constance create a heat exchanger with a length of 90 meters in a sewer, where it is heated through three new buildings. In this new method can be obtained in a single year to about 900 thousand kilowatts per hour, which is equivalent to the thermal energy of the ninety thousand liters story of the sand dollar of heating oil.
According Vistrhof expected use of sewage for energy, especially in the big cities and in the vicinity of industrial plants that produce effluents warm. It owns cities like Berlin, Munich, Paris, Copenhagen and Dijon such systems. story of the sand dollar It is also expected that a number of European cities to adopt these new systems for use in heating.
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