This allows the fluid to collect the thermal energy deposited in the earth from the sun. This works well even in the coldest winters because the earth below the frostline is a steady 55 degrees Fahrenheit all year long. The heat is circulated back into the pump and then distributed evenly throughout your home using your duct work.
Now, for the big question: how does the same geothermal heat pump that heats your home in the winter also produce AC for the summer? Essentially, the heat transfer process works in reverse.
As the ground is at a lower temperature 55F , heat dissipates from the fluid to the ground. The experience of cold air blowing into your home is the result of the process of removing heat from the circulated air, transferring that heat to the ground, and returning cool air back to your home.
This hot refrigerant moves through the condenser, where it comes into contact with and transfers heat to the ground loop fluid. This fluid is then circulated through your ground loop piping where it releases heat to the ground. But back to the heat pump. After transferring heat to the ground loops, the refrigerant moves through the expansion valve, which decreases both the temperature and pressure of the refrigerant.
The now cold refrigerant then travels through the evaporator coil to come into contact with the hot air inside your home. The heat from the air inside is absorbed by the cold refrigerant leaving only cold air. This cycle repeats until your home reaches your desired temperature. When it comes to efficiency, geothermal AC beats conventional central AC by far. As you can imagine, your geothermal heat pump will always be effective and efficient at cooling your home, even in the hottest summers.
Installing a geothermal air conditioner can reduce your electricity use by 25 to 50 percent! Taking advantage of geothermal cooling is a great way to avoid those painful spikes in your utilities bills over the upcoming hot summer months. However, all these different acronyms are just a confusing result of industry non standardization. Essentially, they all serve the same function. So, no matter what measurement method you use, the efficiency rankings of HVAC systems are still the same, and geothermal wins out every time.
In the end, geothermal AC usually works out to be much more affordable than conventional AC, because after the higher upfront cost, there are very low operational costs. The operational savings of geothermal AC become immediately clear when you see your electric bill: geothermal heat pumps lower your electric usage in the summer! The best part is, after several years, your geothermal system ends up paying for itself in savings! Other relevant cost considerations are the federal, state, and utility incentives offered to homeowners who upgrade to geothermal HVAC from conventional systems.
Kids loved the AC this summer. Something we've never had before. My parents even commented that the house feels warmer when they came to visit. Select which type of fuel your home uses below:. Fuel Oil. Here is an example of a typical 2, square foot home in Cortlandt, NY with fuel oil heating and central air conditioning versus a Dandelion Home Geothermal Heating and Cooling System. Dandelion Geothermal. Fuel Oil Furnace. Oil Efficiency 15 yr old furnace. A portion of the predicted heating costs are due to electricity consumption of the furnace.
Dandelion Geothermal System. Total Heating and Cooling Cost Savings. Here is an example of a typical 2, square foot home in Cortlandt, NY with natural gas and central air conditioning versus a Dandelion Home Geothermal Heating and Cooling System.
Natural Gas Furnace. Natural Gas Efficiency 15 yr old furnace. Here is an example of a typical 2, square foot home in Cortlandt, NY with propane and central air conditioning versus a Dandelion Home Geothermal Heating and Cooling System.
Propane Efficiency 15 yr old furnace. Dandelion is currently working on a new and improved home geothermal offering for Summer Any leftover water and condensed steam are injected back into the reservoir, making this a sustainable resource. Binary cycle plants use the heat from the hot water to boil a working fluid, usually an organic compound with a low boiling point. The working fluid is vaporized in a heat exchanger and used to turn a turbine.
The water is then injected back into the ground to be reheated. The water and the working fluid are kept separated during the whole process, so there are little or no air emissions. Currently, two types of geothermal resources can be used in binary cycle power plants to generate electricity: enhanced geothermal systems EGS and low-temperature or co-produced resources. EGS provide geothermal power by tapping into the Earth's deep geothermal resources that are otherwise not economical due to lack of water, location, or rock type.
The U. Geological Survey estimates that potentially , megawatts of EGS resource is available in the western U.
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