Our planet receives about 174 petawatts of heat radiation from the sun. Solar energy is free energy we can use. About 30% bounces back to space while clouds, land and bodies of water absorb the remaining radiation. This totals to about 3,850,000 exajoules of sun energy absorbed by Earths atmosphere annually.
Man has used sun power, which comes from the heat of the sun, since the olden times. Solar energy is free energy source for the people. It does not require fuel and does not cause pollution.
Compared to natural gas, coal and oik that takes a long time to be harvested in huge amount, this power has no shortage of supply. With this advantage, modern solar applications are being developed to harness the heat. Some of theses solar applications that are used nowadays include water heating, heating and cooling architectures, electricity production and those used for industrial purposes.
Recently a lot of buildings are designed with the utilization of passive sun heating. The design usually includes huge windows created from materials that retains heat. The place of storage for the collected sun heat is in the walls and the floors. These continually release heat when it is cold especially when it is nighttime. With this development, the owners can now put aside some money for other uses.
Meanwhile, power plants that use fossil fuels before are now taking advantage of this heat as well. They use sun power systems which includes parabolic-through, power tower and dish.
With the use of tilted curved mirrors, parabolic-through collect energy from the sun. Pipes with oil are being focused on with light and heat. The oil heats the water used in generators. The generators in turn produce electricity. Mirrors are also used to collect light for the dish system and power tower system in order to generate electricity.
Heat coming from the collector may also be used to cool a building. Like an air conditioner, cooling systems use sun heat as a source of power. Evaporative coolers also can make use of the sun for its power source.
Water heating has also been a famous use of sun power. Glass panels in roofs are used to heat water. Through this, gas or electricity will be saved. Pipes in the panel contain water. Water is propelled from the bottom which helps hot water to be pumped from the top.
And unknown to most of us, the satellites that orbit the earth utilize cells as its source of power. These satellites are important for our usage of TV, telephones, internet and different types of navigation system. This goes to show that we are using heat from sun as a free source of power.
We have been using solar energy is free energy ever since. We use it to dry clothes. Some even use it to dry food by natural means. However, in the past only a few amount of this vast resource is being used. Nevertheless, with the development of technologies, we are now able to harness this heat for better usage and still it is for free.
Man has used sun power, which comes from the heat of the sun, since the olden times. Solar energy is free energy source for the people. It does not require fuel and does not cause pollution.
Compared to natural gas, coal and oik that takes a long time to be harvested in huge amount, this power has no shortage of supply. With this advantage, modern solar applications are being developed to harness the heat. Some of theses solar applications that are used nowadays include water heating, heating and cooling architectures, electricity production and those used for industrial purposes.
Recently a lot of buildings are designed with the utilization of passive sun heating. The design usually includes huge windows created from materials that retains heat. The place of storage for the collected sun heat is in the walls and the floors. These continually release heat when it is cold especially when it is nighttime. With this development, the owners can now put aside some money for other uses.
Meanwhile, power plants that use fossil fuels before are now taking advantage of this heat as well. They use sun power systems which includes parabolic-through, power tower and dish.
With the use of tilted curved mirrors, parabolic-through collect energy from the sun. Pipes with oil are being focused on with light and heat. The oil heats the water used in generators. The generators in turn produce electricity. Mirrors are also used to collect light for the dish system and power tower system in order to generate electricity.
Heat coming from the collector may also be used to cool a building. Like an air conditioner, cooling systems use sun heat as a source of power. Evaporative coolers also can make use of the sun for its power source.
Water heating has also been a famous use of sun power. Glass panels in roofs are used to heat water. Through this, gas or electricity will be saved. Pipes in the panel contain water. Water is propelled from the bottom which helps hot water to be pumped from the top.
And unknown to most of us, the satellites that orbit the earth utilize cells as its source of power. These satellites are important for our usage of TV, telephones, internet and different types of navigation system. This goes to show that we are using heat from sun as a free source of power.
We have been using solar energy is free energy ever since. We use it to dry clothes. Some even use it to dry food by natural means. However, in the past only a few amount of this vast resource is being used. Nevertheless, with the development of technologies, we are now able to harness this heat for better usage and still it is for free.
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