Describe solar energy.


Characteristics of the Sun and the Sun as a Source of Energy

Describe solar energy, The sun and the planets that orbit it make up the solar system, which is the only source of energy for the entire globe.

It is the sole resource that all living beings on earth must have.

The sun is responsible for a significant portion of the many energy sources that are used today.

Daily sun energy can be used to illuminate the earth; precipitation can feed the water cycle; and, most critically, photosynthesis can sustain a bustling lifestyle.

This important star may also be able to generate energy in a matter of seconds.

The only star with a radius of 700,000 km (about 109 times that of the Earth) and a mass of 21030 kg (almost 330,000 times that of the Earth) is the Sun.

Even the sun itself turns on its axis.

Within 24 days near the solar equator and within 30 days at the poles, this rotation occurs. The fusion activity at the sun’s core is primarily driven by the fusion of hydrogen nuclei.

It is thought to be between 15 and 16 million degrees and located in the centre of the sun.

The sun is thought to have 90% hydrogen.

A massive single energy is created as a result of the hydrogen and helium nuclei fusing and forming in the sun’s core.

Since the sun emits 3.8 1026 J of radiation per second, almost 600 million tons of protons, or hydrogen, are used up in a single second.


Describe solar energy.

Describe solar energy, It turns out that it will take an estimated 5 billion years for the hydrogen fuel in the sun to run out, despite the fact that this number initially may appear alarming given the mass of the sun and the protons that make up roughly 90% of this mass.

The sun is the sole endless source of energy for humans in this sense.

The still chilly (about 6000K), long and narrow (a few hundred kilometers wide) single sector of the sun is where the solar energy that powers the Earth originates.

The only place that hardly transmits visible light is this site, which is made up of low density ionized gases (about 10-4 times the density of air at sea level).

This cauldron glows because the atoms in this area radiate in direct proportion to their temperature.

About 150 million kilometers separate Earth from the sun.

is a long way off.

In a single elliptical orbit, the Earth circles both around itself and even around the sun.

In this way, the energy that the sun provides to the world varies every day and even over the course of a year.

Additionally, the Earth rotates about itself on an axis that is 23.5 degrees from the plane of its orbit around the sun. The seasons are created because the sun only makes a single angle with the earth during its orbit, which fluctuates throughout the year.

The sun emits radiation that reaches the Earth at a rate of 41026 J per second.

This quantity is only a small portion of the overall energy the sun emits, yet it is 15–16 thousand times greater than the entire energy consumed by people in the world today.

The world’s supply of solar energy, which comes from radiations with different wavelengths, travels for around eight minutes before it reaches the planet (the radiations travel at a single speed of 300,000 km per second, in other words, at the speed of light).

The Solar Constant (S), whose value is S=1373 W/m2, is the amount of solar energy that emanates from the earth, or, more specifically, from outside the atmosphere, on a single square meter area perpendicular to the sun’s rays.

By definition, we can consider this value constant during the course of the year.

Since it should always be taken into account, the surface perpendicular to the incoming sun rays

The change in this value over the course of the year is only 3.3% due to the fact that the earth’s orbit around the sun is an ellipse rather than a circle.

The absorption and reflection of this energy result in 832 W/m2 of energy reaching the earth.

Benefits and Drawbacks of Solar Energy

The following are some benefits of solar energy:

– The only limitless source of energy is solar energy.

– The only pure form of energy is solar energy.

harmful substances, such as gas, smoke, dust, carbon, or sulfur.

There isn’t any.

– The sun is the only energy source that can be used by any nation on Earth.

In this manner, power

Habits will go.

– The only other benefit of solar energy is that there are no transportation costs because it is available everywhere.

can be offered.

– Although there is a slight difference in effectiveness in locations that receive the sun more or less frequently, it is still possible to take advantage of this energy in plains or valleys on the summits of mountains.

– Solar energy is not affected by many potential crises.

as in transportation networks

The single adjustment they’ll make won’t have an impact on all of this energy.

– Simple technology is not needed to use solar energy.

nearly all nations

Through commercial facilities, they can readily profit from this energy.



Describe solar energy, These are the problems that this energy is currently facing:

– Solar energy has a low intensity and is transient.

When desired, at the desired intensity

might not be located.

– Avoid making the decision to use solar energy.
The relevant mechanisms’ investment costs

is at a high technological level.

– We cannot control or measure how much energy the sun produces.

– There is a lag between the supply and demand for energy in many application areas.

When the radiation requirement from solar energy is discovered to be high, apply this.

has to be stored.

On the other hand, energy storage causes a lot of problems.

Solar energy use areas

Solar energy can be stored and transformed into various forms of energy through thermal, mechanical, chemical, and electrical methods.

Heat storage or cycle: Simple and inexpensive materials are used, and the specific heat capacity is high. Some examples include pebble beds, water, and oil.

In mechanical storage, the high-pressure fluid that has been compressed by a single solar-powered pump or compressor is gathered in a single practical setting.

Chemical storage employs hydrate salts.

Describe solar energy, Batteries are used to store energy for the purpose of storing power (accumulator).

Boiling and cooking, heating swimming pools and conservatories, drying herbal products, water distillation, heating and cooling (air conditioning) of buildings, production of heat and electricity along with cooling, and total energy systems are all processes that use solar energy, either indirectly through these cycles or directly. To pump the second procedure’s temperature, produce electricity, and carry out photochemical and photosynthetic cycles, irrigation water is used.

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