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geothermal energy and scope in india - coleman heat pump

by:HICOOL     2019-09-01
geothermal energy and scope in india  -  coleman heat pump
Geothermal energy is the thermal energy generated by the radioactive decay of materials inside the Earth, it can be used almost anywhere on the Earth, but the feasible method is only possible on or near the surface
Surface performance.
These phenomena are confined only to certain parts of the world.
It is a very new renewable energy source.
Although surface plants such as hot springs have been used by humans since ancient times, the first ground heat pump was used in the 1940s, and the first geothermal power plant did not start operation until 1960.
Since then, many countries have been investing in geothermal energy as a clean and renewable energy source, which is more important than ever.
Geothermal Tibet requires several factors to work together to make a region a viable area for using geothermal energy.
There needs to be a geological heat source that is relatively close to the surface or close to the depth.
There are two basic types of geothermal resources available.
The first type is the hot water heat source, in which case the heat is passed through the water to the surface and the water is charged to the ground through rain or surface objects (
Such as rivers, lakes or glaciers)
Then heated by the hot rock below, hot rock due to earthquake or volcanic activity.
Hot Springs in Iceland, the Himalayas and the Alps are an example.
The formation of the area needs to penetrate so that it can allow the water to flow freely, it is necessary to charge the system and also need hot water to come up.
The potential of geothermal reservoirs can be calculated by testing temperature and flow rate.
Because geothermal resources are easy to locate and develop, this is a more traditional geothermal energy source.
Formation of geothermal reservoir. (
Source: The second type of resource mining can be done through a deep/Enhanced geothermal system in which a deep drilling hole is dug to reach the hot basement rock, then put the pump into the hole to get the steam it aims to run the turbine.
It is an expensive process to enter the deep base rock bed, so this method is not popular.
The most common and oldest way to use geothermal energy directly is to use this near-surface reservoir directly.
In the direct use method, the maximum capacity is heating, which is mainly used in residential and working spaces, and hot water from hot springs is directly pumped into the boiler to heat the building.
The other most commonly used method of direct use is geothermal heat pump.
These pumps take advantage of the Earth's underground temperature from 10ft-depth relative
300ft, so they can be used almost all over the world, because they do not require a strong heat source from the Earth, it uses a slight temperature difference between the temperature below the ground and above the surface.
GHPs circulating water in horizontal or vertical circulation under the surface.
The loop absorbs heat from the Earth and operates through traditional plumbing systems.
For cooling, the system is reversed, the system absorbs heat from the building and transfers it to the Loop underground.
GHPs can be reduced by 30-60%.
Although the use of direct geothermal energy is more common and extensive, most of the capacity of geothermal resources is currently used for geothermal power generation, and the global geothermal power generation capacity is about 12.
8 gigawatts is expected to increase to about 18 gigawatts by 2020.
Because the source of energy is constant, 24-hour power production is as consistent as coal or nuclear energy.
This feature makes geothermal power generation more productive than other renewable sources such as solar or wind energy.
At present, only 24 countries produce geothermal energy by using the simplest and most primitive 3 major power plant designs, which use steam directly from the geothermal system to rotate the turbine.
It can only be used where the geothermal reservoir produces a lot of steam, just like fountains and hot springs.
The only discharge is the excess steam, so it is completely carbon neutral.
Geysers in Northern California are home to 22 geothermal power plants that draw steam from more than 350 wells, making the region the world's largest source of geothermal power.
The second type is the flash circulation device, and the fluid above 182oc is kept at a much lower temperature than the original pressure of the fluid, which causes the fluid to evaporate or "flash ".
Then, rotate the turbine using the "flash.
If some fluid is left in the tank, it can flash again by transferring the fluid to the auxiliary tank at lower pressure.
Geothermal reservoirs containing less than 200oc water generally tend to use binary circulating power plants.
In this plant, the secondary fluid (binary)
Water with a much lower boiling point is heated by moderate hot water to produce steam.
The whole system works in a closed loop, so there is no emissions.
This is the most common kind of factory because there is no need for extremely high hot water for electricity production.
Most new geothermal power plants use this system to generate electricity.
Philippines case study: The Philippines is located in the western part of the Pacific Coast (
Large part of the fire ring).
Volcanic activity in the area is caused by deep cracks on the Earth, forming several geothermal centers.
The islands also experienced heavy rainfall, charging groundwater and creating an ideal environment for the development of geothermal power plants.
The Philippines is the second largest geothermal power producer after the United States.
The Philippines is one of the few countries in the developing world to invest heavily in thermal power.
It accounts for 25% of the island's electricity consumption, and the government is investing in more projects.
Iceland: Iceland is directly above the middle.
The Atlantic ridge provides an ideal environment for a wide range of volcanic activity.
Due to the remote location and lack of other energy sources, Iceland has invested heavily in geothermal energy and other geothermal resources available locally.
About 90% of Icelandic households use geothermal reservoirs directly for heating
The fourth power on the island was produced by a five-Earth thermal power plant.
Himalayan tropics: HGB is a huge geothermal active region spanning the entire Himalayan movement across six countries.
Compared to the actual potential, the current electricity generated in the region is negligible.
More than 150 websites in China and India (Tibet)
Nepal, Myanmar and Thailand have been confirmed to be hot enough to generate electricity.
Geothermal activity is the result of a collision between India and Asia 40 years ago.
The collision caused the Indian plate to sink below Asia, which caused the large granite blocks under the Himalayas to heat up the groundwater.
Large glaciers supply water, creating an ideal environment for the development of geothermal energy.
Due to the long-term neglect of geothermal resources in the countries of the region, only the interest in geothermal resources has shown, the region has the potential to become a hot spot in geothermal energy.
The need for non-investment after the Paris climate summit
Traditional carbon
Free energy has become inevitable.
Geothermal energy is a renewable and reliable energy source.
The average geothermal power plant generates about 122 kg of carbon dioxide per megawatt hour, while the average coal
The power plant generates 1000 kg per kilowatt hour, only a small part of the latter.
Many developing countries are located near these tropical regions, and they can use these resources to balance the hegemony of countries rich in fossil fuels.
It cannot be ignored that the initial installation cost of geothermal power plants is very high, which makes it difficult for poor countries to invest, but through global joint efforts, these technologies can be shared and developed around the world, to a more sustainable planet.
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