Tuesday, May 6, 2014

Our everyday life leads to the creation of the amount of waste poisoning of the air, groundwater an

Proposal for a heat pump for house
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This paper addresses the use of renewable resources for the needs of heating and domestic hot water. It focuses on the use of low-potential heat with heat pumps. There has been a proposal for specific heat pump for the selected object. Finally followed by financial comparison between heating by means of a conventional source and the heat pump.
Our everyday life leads to the creation of the amount of waste poisoning of the air, groundwater and surface water. We must not forget that this world we need for our existence and we must protect it. Since I am a student how to plate food of the energy department, I focused mainly how to plate food on energy. Without it we would nezaobišli. Population growth and industrial development meant that it needed more and more. This causes the environment is currently quite a heavy burden. It is our duty to continue to develop and implement friendly energy sources.
For energy from renewable sources may not only serve the plant or collectors. For specific objects can be used for heating (cooling) and domestic hot water heat pumps, which also utilize renewable how to plate food energy sources. These devices can very effectively use low temperature heat potential.
The heat pump is a device that works under reverse circulation Rankine, who excelled minor adjustments from circulation Carnot [1]. 1-2 leads to the adiabatic compression in the compressor from pressure p to pressure p 1 second how to plate food A resulting rise in temperature from T 1 to T 2nd It is implemented in a perfectly thermally insulated compressor (K m). Compression should be added the work given in the pv diagram of a 1, 2, 3 ', 4'. 2-3 isobaric condensation occurs in the condenser (condom), as a result of heat removal q 2 at a higher temperature of the circulating T 2nd 3-4 cr pressure reduction at 2 p 1 in the reducing valve (RV). Reduced pressure while reducing the temperature from T 2 to T first Pressure reduction takes place at constant how to plate food enthalpy. By substituting the expansion machine reducer differ reversed Rankine circulation of Carnot. There are also devices with expansion machine, utilizing the work of 3, 3 ', 4, 4', for its complexity, however, do not actually use. 4-1 isobaric evaporation in the evaporator (VP) due to supply heat at a lower temperature of the circulating T first
The choice of a particular resource depends on the technical feasibility of the - where the possibility of investment how to plate food cost, return on investment. When selecting source how to plate food heat pump must not forget the quality, coverage, availability and temperature.
We can do so by using the groundwater, which is currently the most suitable source of low potential energy, because it has a relatively constant how to plate food relatively high temperature (8-12 C), and hence a high COP, which contributes to a shorter time of return. Then it is necessary to excavate 2 wells (one out of the water is pumped to a second returns), which is financially in some cases very difficult. Distance wells has prescribed mutual how to plate food distance, but we still need to be careful of the direction of water flow, so we cooled water does not flow into the well from which we draw heat.
In mountain areas, not forgetting the melting snow and ice, which may also reduce the temperature in the well in the spring. Top of testing how to plate food will be done well or ground water chemical composition is suitable and adequate coverage. Which moves in the area of 150 m 2 house and occupied by one family at 2.5 to 3 m 3 / hr. In Slovakia, it is possible how to plate food to do without a permit drilling to a depth of only 95 meters. If the building is located in the protection zone of the water source is not well to heat pumps ever use.
Another option is to use a surface how to plate food source, eg. lake, river, or an artificial water reservoir. Laying collectors at the bottom of the river is less expensive to initially cost. There is, however, require the consent how to plate food of the administrator, the majority of the water company. Equipment is necessary to ensure flood or other type of damage. The water temperature varies throughout the year, the advantage is that running water does not freeze in winter so still reaches several degrees. Here again, bearing in mind the source of coverage, many times the evaporator can not be put directly into the water and it is also necessary pumping equipment.
Selected objects to design heat pump has rebuilt house in the village Radatice, Prešov. Now we need more familiar with the object. how to plate food This means identifying what building materials, windows and doors were used. The outer walls of the first floor is made up of stone and ceramic system Porotherm 38 P + D thick masonry 400 mm extension of complete ceramic Porotherm 25 P + D thick masonry 300 mm. Project how to plate food documentation

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