On the question of solar energy, a couple of questions about solar energy

It's usually used for heating, not for generating electricity.

It is the use of the sun's energy.

It is not used at night, and it is best when it is cloudless.

What you see is a solar water heater.

He's a green energy source and a good choice if conditions allow.

Hehe, this is a regional problem, you may not believe it.

I used to be from Xichang, and at that time, the people there didn't know what an air conditioner was, because it didn't work. I went to Chongqing, and when it comes to solar energy, people don't know about it. If you put it on both sides, you will think that the other party is very poor and has never seen the world.

But in fact, because of these two things, there is no market at all when you change places, and you don't need them locally.

It's a lot of idle nonsense, and now I'll give you your questions.

1.It is also known as a solar water heater, and as the name suggests, it is used for bathing, so it is not a generator, and of course there is no store.

2.No pollution, no energy, is a long-term investment! (Just the installation cost).

3.Because it uses the sun as an energy source for heating, it is called solar energy.

4.The sun radiates onto the black slope you are talking about. (black endothermic) then heat the water in the pipes.

5.The sun must have the sun, that's for sure.

6.It's not hot when there's no sun, it's hot when there's sun.

Solar energy can usually only be used in places with relatively high altitudes and high solar radiation. (Don't understand it as heat is large solar radiation) Xichang's solar radiation may be unimaginable, you won't feel hot when you put on a coat, but you will feel hot when you take off your clothes. Usually I think it's a cloudy day, but I also find that the water released by the solar energy can scald instant noodles.

Of course not that exaggerated, haha)

Solar energy has not yet been fully utilized, such as those places on the Qinghai-Tibet Plateau, if solar energy is fully utilized, it will be a very objective number.

Where the solar radiation is high, it is usually darker or the so-called plateau red.

If you're interested, you can look around for information about solar energy, and that's all I know.

There is solar power generation abroad.

It is generally installed in suburban villas for daily electricity.

However, there is little reporting in China.

Most of the domestic heating is solar energy.

Green energy.

You're talking about solar water heaters, right? It is generally not used to generate electricity, but to heat cool water. It can heat hot water without using coal or gas.

You feel hot standing in the sun in the summer, right? Solar energy is based on this principle. When you fill up the solar with cool water, the cool water fills those long pipes, and when the sun hits the long pipes, the water in the pipes slowly gets hot, and when you want to take a hot shower or use hot water, the water in the pipes is pumped into the jug (without a pump) and then flows down the pipes.

However, when there is no sun, it is still cool.

1. Solar water heater.

2. Save electricity, money, space, clean and pollution-free.

3. Because it uses solar energy to convert heat energy into heating water.

4. Because it uses the sun to heat.

5. Absolutely.

6. When there is sun, it heats up quickly.

1: Water heater.

2: It can save power.

3: Because it is the energy emitted by the sun.

4: Because it is the energy emitted by the sun.

5: Yes. 6: It is more efficient when there is sun.

There is solar power generation abroad.

It is generally installed in suburban villas for daily electricity.

However, there is little reporting in China.

Most of the domestic heating is solar energy.

Green energy.

He's a green energy source and a good choice if conditions allow.

What you see is a solar water heater.

Isn't it a solar collector?

Categories: Education, Science, >> Science & Technology.

Problem description: Four questions, thank you.

1. How do solar water heaters, solar cookers and solar greenhouses use solar energy?

2. What are the advantages and disadvantages of comparing solar water heaters with electric water heaters and gas water heaters?

3. What are the advantages and disadvantages of comparing solar cookers and coal-fired stoves?

4. The sun can heat things, but it can't boil the water, why do the sun cookers and some sun water heaters wait for the water to boil?

Can anyone tell me? Thank you.

Analysis: The greenhouse uses the principle that glass can transmit visible light but not infrared rays to heat the room. The total energy absorbed is more, but the temperature is lower.

Solar water heaters use a parabolic surface to focus sunlight into a straight line to heat water, and store the hot water for use at any time. Which jujube absorbs less total energy but has a higher temperature.

A solar cooker uses an axisymmetric parabola to focus sunlight to a point. Due to the strong focus of sunlight, it can reach very high temperatures and can even be used to ignite fires. But its energy is generally used instantly, and if you're stir-frying, a cloud drifting by can be troublesome.

The use of solar energy is still in its infancy, and the existing problems are mainly reflected in: the cost of silicon wafers is too high, the energy conversion rate is too low, and the cost of supporting facilities is too high.

1.Poor stability.

Solar energy is greatly affected by climate, day and night, and its arrival is extremely unconstant. Therefore, it is necessary to have storage devices, which not only increases the technical difficulties, but also increases the cost. At present, although a variety of storage systems have been made, they are always not ideal, and the specific application is also difficult.

2.The cost of the installation is too high.

Although the solar energy that reaches the entire ground is very huge, this energy is very dispersed, and as an energy source, it is too low in density. Therefore, the solar energy utilization device must have a considerable area in order to collect sufficient power. However, the larger the area, the higher the cost.

It is only when the unit cost of the surface of the energy harvesting device is quite cheap that the solar energy utilizer can be used economically.

3.In response to the problem of solar pollution, some people have proposed "visual pollution", which means visual pollution caused by huge solar energy collectors.

Because at a time when the world is developing new energy sources and expanding wind and solar power generation, studies have found that solar farms can have unintended consequences for the environment, including global warming, and even more precipitation, which will have a systemic impact on the global climate.

Flat, sparsely populated, and sunny deserts have always been the preferred choice for solar power plants, and the top 10 solar power plants in the world are all located in deserts or arid regions.

Key benefits: Scientists at Lund University and Western Sydney University in Sweden believe it would be feasible to transform the world's largest desert into a giant solar farm that could generate up to four times the current global energy demand. Solar power plants in Tunisia and Morocco are now being planned to meet the electricity needs of millions of households in Europe.

But scientists are concerned that while solar panels absorb most of the sunlight, only about 15 percent of the 20 percent of the incident energy is converted into electricity.

1. Limitations:

1. The quality of the population in the non-electric area is low, and the equipment is not properly utilized; Scum Luxiang.

2. There is a shortage of electricity in the area with electricity;

3. Affected by the villagers' own economic affordability, maintenance costs have become an obstacle to equipment reuse;

4. Enterprises set up maintenance points far away from these remote mountainous areas, limited by natural geographical conditions, the export of equipment or the entry of technical personnel such as fighters into the countryside has become another obstacle to the reuse of equipment;

5. Expensive cost;

6. The utilization rate of the battery is low and the pollution is serious.

2. Suggestions: 1. Expand the scope of application;

2. Solar energy is a renewable clean energy, and the solar household power supply technology has become mature, and a photovoltaic power generation industry chain has been formed. The installed capacity ranges from tens of watts for household use to hundreds of megawatts for large-scale ground-mounted photovoltaic power stations, which can provide AC and DC power supply.

Solar energy includes light energy and heat energy, and light energy is the energy form corresponding to the movement of photons, light energy is a form of energy released by the sun, candles and other luminous objects, and light energy is a renewable energy source.

The sun is a huge luminous body and a powerful source of electromagnetic radiation, light is the frequency band of a certain electromagnetic wave, and the temperature change of the natural acacia also disturbs the omnipotence of the magnetic field force, and it is also the law of universal electromagnetism that forms the energy transmission of the movement of matter in space in the universe. This kind of conversion of light and heat energy is not only for a single type of matter, all substances in nature are aware of this phenomenon, but it is just a matter of how much energy is converted.

Solar energy generally has two outlets, only one overflow and one exhaust port.

When the overflow is blocked, too much water can flow out of the exhaust port.

According to the subject's description, the water should flow out of the exhaust port, and you can try again to see if the water can be used, referring to whether the temperature will rise, there is no big problem.

Solar energy refers to the energy released by a thermonuclear reaction inside the sun. The Sun is a large, hot star that is constantly undergoing thermonuclear reactions, radiating large amounts of energy, some of which reach Earth. The sun reaches the earth with a lot of energy, part of which is used by plants and converted into bioenergy, and part of it is used by the evaporation of water to convert into water energy, and a lot of energy is wasted.

The sun is a huge natural energy source, and the use of solar energy has great prospects. In order to make more efficient use of solar energy and convert sunlight into heat, electricity, chemical energy, etc., scientists have studied the use of large-area light devices to concentrate solar energy and convert it into water or electricity, and have designed and manufactured a variety of solar energy devices.

Solar power generation is a clean energy system that generates electricity directly from sunlight. Suitable for almost anywhere – large buildings, factories and residential buildings. Both commercial and individual users can enjoy the benefits of solar power.

Solar power generation is a clean energy system that generates electricity directly from sunlight. Suitable for almost anywhere – large buildings, factories and residential buildings. Both commercial and individual users can enjoy the benefits of solar power.

Solar power generation is a clean energy system that generates electricity directly from sunlight. Suitable for almost anywhere – large buildings, factories and residential buildings. Both commercial and individual users can enjoy the benefits of solar power.

The question of the sun's energy has always been fascinating. It was first proposed that the sun's energy is produced by the contraction of its own matter towards the center. However, such energy can only last for about 30 million years, and the oldest rock on Earth is 3.8 billion years old.

Some of the hypotheses that have been put on since then are equally difficult to justify. It was later learned that the sun's energy comes from its core, which is less than 500,000 kilometers in diameter, and its core is extremely hot and stressful, and a thermonuclear reaction takes place: every four hydrogen nuclei combine to form a helium nucleus, and at the same time release a huge amount of energy.

This process can take place for 10 billion years. Solar energy refers to the energy released by a thermonuclear reaction inside the sun. The Sun is a large, hot star that is constantly undergoing thermonuclear reactions, radiating large amounts of energy, some of which reach Earth.

The sun reaches the earth with a lot of energy, part of which is used by plants and converted into bioenergy, and part of it is used by the evaporation of water to convert into water energy, and a lot of energy is wasted. The sun is a huge natural energy source, and the use of solar energy has great prospects. In order to make more efficient use of solar energy and convert sunlight into heat, electricity, chemical energy, etc., scientists have studied the use of large-area light devices to concentrate solar energy and convert it into water or electricity, and have designed and manufactured a variety of solar energy devices.

Hope it helps.

Solar energy generally refers to the radiant energy of sunlight, and the vast majority of the energy required by human beings comes directly or indirectly from the sun. Fossil fuels such as coal, oil, and natural gas were also formed by ancient plants and animals buried in the ground over a long geological time, and they are essentially solar energy fixed by ancient organisms.

Solar energy is the light and heat emitted by the sun. The solar energy that reaches the Earth is usually reflected back into the universe, absorbing only about 15% of the Earth's surface.