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Geothermal Energy for Homes

Did you hear about geothermal energy for homes? It is an energy system capable of saving homeowners substantial bill money.

Sad to say, a lot of people have never read about or do not understand geothermal energy for homes. A lot of people believe that it has something to do with volcanic or geyser heat recovery. It’d be quite impossible for most homeowners to pull off and it ‘d also limit the number of people who could use geothermal energy.

Fortunately, in order to have a reliable, money-saving home geothermal system you don’t have to live anywhere near an active volcano. Heating and cooling at home in geothermal areas is actually quite simple.

How does home geothermal energy work?

The Earth’s temperature is 55 degrees Fahrenheit year-round and is 10 meters below surface level. If you have air under freeze outside your home, the ground under the snow still remains at 55 ° C, just ten feet below the ground. Or when summer brings weather at 96 ° C, the ground under your home remains at 55 ° C. Without knowing it, you already have observed this phenomenon at home. On a hot day, when you go into your basement, it is nice and cool because it’s 55 degrees the soil on the other side of your house. In the winter even an unheated basement remains warm thanks to the constant separation of 55 degrees from the surrounding earth.

This normal constant is being used by geothermal projects like the Dandelion Energy system. They use the constant temperature around a house to cool it or heat it as necessary.

Although it is classified as geothermal power, it does not produce electricity through geothermic and other geothermal energy for the homes system. You heat or cool your house using the steady temperature of the earth.

Differences between geothermal systems

Many of the most efficient residential geothermal and industrial heating and cooling systems installed are geothermal systems. In winter they use the constant surface temperature as a thermal source and in summer a heat sink. The stable soil temperature offers a consistent, heat-friendly constant for heating systems and heat-friendly absorption. Geothermal resources can be used in two separate fields for heating and cooling applicants: open circuit geothermal systems and closed circuit geothermal systems.

Open Loop Geothermal

Open-geothermal systems utilize groundwater to transfer thermodynamic control as a refrigerant. Because water is a successful thermal conductor and soil water is naturally isolated and far lower to the surrounding soil in temperature, open-geothermal systems are an excellent solution for performance. Open loop geothermal systems may be used as a source, a drain, a pond or lake as a source, a sink or a drain and a pond or lake as a sink. The cost, capacity and performance of the system are calculated by various installations and by specific variables of each system.

Closed Loop Geothermal

The geothermal systems in the closed loop are different from the geothermal systems in the open loop because they use an antifreeze mix for the water which cycles through interior pipes rather than using fresh groundwater for the transfer of the heat. Geothermal loops are often usable in various forms.

  • Horizontal-The geothermal systems in the horizontal closed loop are systems use pipes horizontally placed down in the earth. The structures take up quite a lot of space because the loops are built for linear cycling.
  • Vertical-The vertical loop geothermal system is another form of closed loop. The tubes are vertically placed in multiple wells from 100 to 400 feet deep and are attached at the bottom via the U-instead of horizontally running the pipes out. The wells are then filled to have a strong thermal conductivity for the vertical tubing.

Geothermal Heat for Greenhouses

Soil and water under the ground provide a large thermal energy reserve. This energy is captured by geothermal heating systems and transformed into electricity that can be used in geothermal heating greenhouse and other buildings. Three types of geothermal thermal energy have to be categorized: low, medium and high.

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  • low temperature (50 degrees F+/-). The ambient soil temperature changes considerably over the year and follows closely the air temperature. The temperature at a depth of 5 or 6 feet is around 50 ° F which depends on the properties of the soil and the environmental factors above ground level. The time period often exists for approximately 8 weeks between maximum surface temperature and maximum soil temperature at this point. For the processing of greenhouse fruit, spices, stock of pets and other vegetables.
  • Medium temperature (140-300°F). Hot water can be provided directly by hot wells and springs in areas of the world. The Rocky Mountain and the West coast are heated by medium-temperature geothermal sources through hundreds of greenhouse operations. By fine radiation or root zone heating, hot water from the ground is distributed.
  • High temperature (>300°). The geysers ‘ steamer is being used to generate electricity, but not to produce greenhouse heating in California, Nevada and Utah. There are presently about twenty sites under development and more. We produce 5-8 cents / kW hr in electricity.

Greenhouse Heating Systems

The economical choice in most parts of the world is for geothermal home heating, because the expense depends on the design of the system and the prices of fossil fuel replacement. It is necessary to carefully determine the estimated payback of your situation previous to considering a geo-thermal system installation and to enforce energy saving measures which typically provide a return of just a few years. Those include: reduction of air penetration, energy curtain construction, insulating sidewall and base perimeter.

Air system:

The tubes of Earth are tubes which are concealed 6 to 12 feet below the surface of the earth. Throughout winter, the most basic and low-cost systems capture heat by pulling air through on-board plastic tubes and direct this to the heating space. The air which is cooled rather than the ground is heated the air that passes through the tubes. The system will cool the building space throughout the summer by pulling natural air through the buried tubes into a greenhouse.

Fluid system:

Fluid systems typically use surface heat or electricity from a well, pond or other body of water for heating a fluid in a closed-loop system, which absorbs the liquid, such as propylene glycol or methyl alcohol.

Conclusion

geothermal energy for homes today are more optimistic than only a couple of years ago at a lower rate. In comparison to recent fossil fuel fluctuations, geothermal heat has become increasingly common for residential and business applications. Because of the higher temperatures usually needed for greenhouse heating, a geothermal heat pump might be necessary.

Reference:

https://farm-energy.extension.org/geothermal-heat-for-greenhouses/

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