Geothermal HVAC
Contrary to traditional HVAC systems that rely on natural gas, fuel oil, propane or electricity geothermal can provide two-in-one cooling and heating. The temperature of the earth below the surface is fairly constant throughout the year.
A geothermal system is made up of a heatpump underground loops and a distribution system. Learn more about this energy-efficient system’s components:.
Ground Loop
The Ground Loop is the most important element to a geothermal system’s efficiency and durability. It is made up of pipes that can be drilled, or even truncated in the yard to connect to your home’s heat pumps. The pipes will be filled with water-based solution and circulated to absorb or distribute heat depending on the needs of your home. The temperature of the ground is relatively constant between four and six feet below the surface level, making it a great energy source for geothermal systems.
When the system is heating up, the liquid used to transfer heat absorbs heat from the earth. It then carries that heat to the heat pump in your home. The fluid is then moved into the loop which is then able to circulate again. In cooling mode, it uses the opposite process to remove the heat surplus. It then returns it back to the loop in order to begin the next cycle.
In a closed-loop system the piping is filled with a product based on water and then buried beneath. The solution is safe for the environment. It is not a pollutant to underground water supplies. The system can use lakes, ponds or other body of water as a source for heat transfer fluid. This is even more environmentally friendly.
Depending on the available space, closed and open systems can be set up horizontally or vertically. Vertical systems require fewer trenches and cause less disturbance to your landscaping than horizontal systems. It is often used in areas where soil depths are shallow or when existing landscaping needs to be preserved.
Whatever the kind of ground loop system, it is important to choose an experienced installer. Geothermal systems require substantial amounts of energy to operate and it is vital to have a well-designed and efficient system in place. A quality installation ensures the longevity of your geothermal system, and will save you money on electricity bills in the long term. It is also crucial to flush the system frequently to eliminate any mineral buildup. This can reduce the flow of the heat transfer fluid and reduce the efficiency of the system. A GeoDoctor expert can assist you to select the best system for your home.
Vertical Loop
Geothermal energy comes from the Earth and is used to heat or cool buildings. It can be harnessed using underground loops that absorb heat and then transfer it into your building. Vertical ground loops are the most popular geothermal system. This type of system is typically utilized in commercial and residential applications. This system uses the heat pump to transfer thermal energy from the earth into your office or home. In the summer, it works in reverse to provide cooling.
The pipes that are buried store thermal energy that transfers from the earth to your home. These pipes are a key component of any geo thermal HVAC system. The pipes are made of high-density Polyethylene, and they circulate water as well as propylene glycol, which is food-grade antifreeze. The temperature of the soil or water stays relatively constant, even just a few feet below the surface. The closed-loop geothermal system can be more efficient than other heating methods, like gas boilers or furnaces.
The loops can be erected in a horizontal trench or placed into boreholes that are made to the depth of 100- 400 feet. Horizontal trenches are typically used for larger homes with a lot of available land and vertical boreholes are ideal for businesses or homes that have small spaces. Installing a horizontal ground loop involves digging trenches that can require a lot of time and effort. The ground is also to be compacted in order to ensure that the loops are firmly fixed to the soil.
A vertical loop is simpler to set up than a horizontal field. The technician drills holes of 4 inches in diameter spaced about 20 feet apart. He then connects the pipe to create a closed circuit. The number of holes you need will depend on the size of your building and the energy demands.
To keep your geothermal heating and cooling system running at its peak It is essential to properly maintain the loop fields. This means removing any debris and conducting periodic tests for bacteriological health.
Horizontal Loop
Geothermal heat pumps transfer energy between your home and ground or the nearby body of water, and not being able to draw energy from the air outside. This is due to the fact that the temperatures of water and ground remain relatively stable, compared to the fluctuating temperature of outdoor air. There are four primary types of geothermal heating loops and the one you use will depend on the size of your property and layout. The type of loop used and the method used to install it determine the efficiency and effectiveness of your geothermal system.
Horizontal geothermal heat pump systems utilize a series of pipes buried horizontally within trenches that are about four to six feet deep. The trenches are designed to hold two to three pipe circuits. The pipe circuits are connected into an amanifold that is the central control unit of the geothermal heat pumps. The manifold is then able to send chilled and heated water to your home’s cooling and heating ductwork.
In the beginning the pipes were buried in vertical trenches, which required more land area to cover the pipes. As technology advanced it was discovered that layering a single longer pipe back and forth at different depths in smaller trenches could reduce space requirements and costs without sacrificing performance. This was the birth of the “slinky” method of installing horizontal geothermal loops.
A vertical ground loop system is a good alternative to a horizontal geothermal heating system for situations in which there is not enough land available. It is also a good option for homes located in urban areas, in areas where the topsoil layer is thin and there isn’t enough space for horizontal loops. Vertical loops can be a good option when your property is located in an earthquake-prone area and is not able to support a horizontal system.
If you have lots of water available lakes, ponds or ponds could be the ideal option for your home. This kind of system functions the same as a horizontal or vertical ground loop geothermal heat pump except the water is used to heat and cooling, instead of the earth. It is important to keep in mind that a geothermal system using lakes or ponds will not work in the event of a power failure. Installing a backup generator will provide power during this time.
Desuperheater
Geothermal heating and cooling is a highly efficient alternative to conventional methods. When it comes to making the switch homeowners must consider balancing the initial costs with the total energy savings. There are many aspects to consider such as the local climate and soil’s composition. One of the most important decisions is whether or not to dig ground loops, or install an external tank for hot water. The latter option may be less expensive, however it might not offer as much efficiency.
A desuperheater transfers heat from geothermal heating systems to your hot water tank. It is designed to operate in winter, when the cooling process of the system produces excess heat. The desuperheater utilizes this wasted heat to improve the heating efficiency of your home. It can also cut down on your energy usage by using existing sources.
The ideal design for desuperheaters is determined by several physical, geometric, and thermal factors. These variables include the temperature of the spray water, the angle of injection, as well as the design of the nozzle. These are all elements that can affect the performance and efficiency of the desuperheater.
In a climate that is dominated by heating, a desuperheater can save you up to 20% more than an ordinary water heater during the summer. This is because the desuperheater makes use of the energy emitted by the house during the cooling process and converts it to useful heat for the hot water generator. Geothermal systems can supply hot water to homes for 3 to 5 months per year at a fraction the cost of other energy sources.
The desuperheater is also useful in winter, when the geothermal heating system is operating at its lowest capacity. The device removes the extra heat produced by the cooling system and adds it to the domestic hot water tank. This enables the domestic hot water tank to use the energy that is free, and maximizes the heating capacity of the system. The desuperheater may also be used to cut down on the amount of time geothermal systems are in operation in a climate that is dominated by heating.