Introducing solar energy, experts enter. 10

2011 China's Top 10 Solar Energy Brands.

1. Huangming Solar.

China Famous Brand, China Famous Trademark (recognized by the State Administration for Industry and Commerce), China's 500 Most Valuable Brands, and a member of the International Solar Energy Society.

2. Solar rain and solar energy.

China Famous Brand, China Famous Trademark (judicial recognition), the same manufacturer as Four Seasons Muge, and the pioneer of heat insulation wall.

3. Linuo Rite Solar.

China Famous Brand, China Famous Trademark (judicial recognition), national customer satisfaction products, the largest glass vacuum tube manufacturer, and Linuo Group have strong backing.

4. Four seasons Muge solar energy.

China Famous Trademark (recognized by the State Administration for Industry and Commerce), China's 500 Most Valuable Brands, member of the International Solar Energy Society, and partner of China's aerospace industry.

5. Huayang Solar is a well-known trademark in China (recognized by the State Administration for Industry and Commerce).

6. Yijia Energy Solar Energy is a well-known trademark in China. Actually produced by the same company as Huangming, it is cheaper than Huangming.

7. Tsinghua Sunshine Solar is a well-known trademark in China.

8. Sangle is a well-known trademark in China, a national customer satisfaction product, and a home appliance product in the countryside (a rising star in the solar energy industry). The most developed brand.

9. Brilliant Solar China Well-known Trademark (judicial recognition).

10. Tianpu Solar, a well-known trademark in China (judicial recognition). Ding), China's 500 most valuable brands, member of the International Solar Energy Society.

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5 people, it is recommended to use a capacity of about 200L, after all, it is too big and not cost-effective, not necessarily 5 people take a bath at the same time every day. . . Tubes are now 58 is more common, pipe long. Brand, it is best to choose some well-known brands (not listed, otherwise it will be suspected of advertising), ** may be more expensive than miscellaneous brands, but, considering after-sales, it is still necessary...

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

Analysis: Solar energy is the energy produced by the continuous process of nuclear fusion reactions inside the sun. The average solar radiation intensity in Earth's orbit is 1367 kW m2.

The circumference of the Earth's equator is 40,000 km, which allows it to be calculated that the Earth can gain up to 173,000 TW of energy. The standard peak intensity at sea level is 1kw m2, and the average annual radiation intensity of a certain point on the earth's surface for 24h is equivalent to 102,000tw of energy, which human beings depend on for survival, including all other forms of renewable energy (except geothermal energy resources) Although the total amount of solar energy resources is equivalent to more than 10,000 times the energy used by human beings now, the energy density of solar energy is low, and it varies from place to place and from time to time, which is the main problem facing the development and utilization of solar energy. These characteristics of solar energy will limit its role in the overall integrated energy system.

The sun is a huge, ancient, endless source of energy. Although the energy radiated by the Sun into the Earth's atmosphere is only 1/2.2 billion of its total radiant energy (about 1/2.2 billion, it is already 173,000 TW, which means that the Sun hits the Earth with the equivalent of 5 million tons of coal per second). The diagram below is a diagram of energy flow on Earth.

As can be seen from the figure, the earth's wind energy, water energy, ocean temperature difference energy, wave energy, biomass energy and some tidal energy are all higher than the sun; Even the fossil fuels on the earth (such as coal, oil, natural gas, etc.) are fundamentally solar energy stored since ancient times, so the scope of solar energy in the broad sense is very large, and solar energy in the narrow sense is limited to the direct conversion of solar radiation energy into photothermal, photoelectric and photochemical.

Solar energy is both a primary and a renewable energy source. It is rich in resources, free to use, and does not require transportation, and does not pollute the environment in any way. But solar energy also has two major drawbacks:

First, the energy flow density is low; Second, its intensity is affected by various factors (season, location, climate, etc.) and cannot be maintained constantly. These two major disadvantages greatly limit the efficient use of solar energy.

Humans have a long history of harnessing solar energy. As early as the Warring States Period more than 2,000 years ago, China knew that the use of steel four-sided mirrors focused on sunlight to ignite fire; Solar energy is used to dry agricultural and sideline products. In modern times, the utilization of solar energy has become more and more extensive, including the photothermal utilization of solar energy, the photoelectric utilization of solar energy and the photochemical utilization of solar energy.

Solar energy refers to the sun's thermal radiation energy (see the three ways of heat energy propagation: radiation), which is mainly expressed in the so-called solar rays. In modern times, it is generally used to generate electricity or provide energy for water heaters.

Solar energy in a broad sense also includes wind, chemical, and hydro energy on the earth. Solar energy is produced by the fusion of hydrogen and helium in the sun's interior to release huge amounts of nuclear energy, radiant energy from the sun.

The vast majority of the energy required by humans comes directly or indirectly from the sun. Plants release oxygen, absorb carbon dioxide, and convert solar energy into chemical energy through photosynthesis for storage in plants.

Dramatically, land-to-ground missiles, surface-to-surface missiles, surface-to-surface missiles, surface-to-surface missiles, surface-to-surface missiles, and so on.

Solar energy is the collection of the sun's radiant energy by something into other forms of energy. Causes: Water heaters absorb and convert internal energy through radiation, convection, and heat exchange; Solar-powered airplanes are ,、、 convert radiant energy into electrical and mechanical energy

Solar energy (solar energy) refers to the sun's thermal radiation energy (see the three ways of heat energy propagation: radiation) DAO, the main manifestation is the solar rays that are often referred to in the version. In modern times, it is generally used to generate electricity or to provide energy for water heaters.

Since the dawn of life on Earth, it has mainly lived on the heat radiation provided by the sun, and since ancient times, humans have also known how to use sunlight to dry objects and use it as a method of making food, such as making salt and drying salted fish. In the face of declining fossil fuels, solar energy has become an important part of human energy use and continues to develop. There are two ways to use solar energy: photothermal conversion and photoelectric conversion, and solar power generation is an emerging renewable energy source.

Solar energy in a broad sense also includes wind, chemical, and hydro energy on the earth.

The system is generally composed of photovoltaic arrays composed of solar cell modules, solar charge and discharge controllers, battery packs, off-grid inverters, DC loads and AC loads. The photovoltaic array converts solar energy into electrical energy when there is light, supplies power to the load through the solar charge and discharge controller, and charges the battery pack at the same time; When there is no light, the DC load is supplied by the battery pack through the solar charge/discharge controller, and the battery also directly supplies power to the independent inverter, which is inverted into alternating current through the independent inverter to supply power to the AC load.

The author of "Solar Energy Utilization" is Liu Jianmin, which belongs to the "Solar Energy Utilization Series Series", which was officially published in June 2010 by the Electronic Industry Chang Slag Industry Ku Xun Zen Publishing House.

"Solar Energy Utilization Technology" is one of the "21st Century Sustainable Energy Series", "Solar Energy Utilization Technology" describes the two major fields of solar thermal conversion and photoelectric conversion.