With increasing temperatures globally, Sustainable energy needs to be encouraged. One of which is geothermal energy systems which can be used to cool house and replace conventional air-conditioning which contributes profusely to global heating.
FREMONT, CA: Geothermal energy is a sustainable pathway to keep the house cool in hot regions of the world. With new techniques being innovated each day, the cooling system has innumerable variants. Researchers from Italy and Turkey have designed the latest one. According to the International Journal of Energy, the technology is explained as a Vapor Absorption Chiller (VAC) and was designed to fulfill the cooling demands of a typical residential area/house of about 140 square meters.
The hot geothermal fluid existing deep beneath the house is brought to the VAC in which a mixture of water and ammonia are utilized as absorbent and a refrigerant respectively. The systems of condenser and boiler run at 30, 90 degrees Celsius whereas the evaporator operates at 2 degree Celsius. The power required by the entire system is around 4.5 kilowatts based on the calculations conducted on the cooling load.
In optimal conditions, the team estimates the costs levied from the system is less than the value of electricity bills generated by utilizing a conventional air-conditioning unit. Moreover, the utilization of geothermal energy to power the system results in a significantly decreased carbon footprint because of its high sustainability quotient.
With global average temperatures on the rise, it is critical to keep the sharp rise of local temperatures in check as a side effect of anthropogenic climate change. This it is necessary to identify alternatives and find sustainable ways to keep people cool indoors without burning excess fossil fuels.
Although geothermal energy is sustainable, misconceptions are surrounding the energy source. Some common assumptions are:
1. It’s a geyser: Hot springs and various other subterranean liquids are not even minutely related to residential geothermal. Geysers are abnormal local seismic circumstances. Geothermal energy from home systems works everywhere.
2. The water table is in the way: While installation, the drills pass straight through it. In places where the water table is only a few feet below the surface, saturated sand enables some of the best drilling and most efficient heat transfer possible.
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3. It generates electricity: Large-scale geothermal power plants can generate electricity. Home systems do not generate electricity, but save fuel by replacing conventional home heating and cooling with more efficient and sustainable equipment.