新能源it是什么(新能源英语介绍500字)

One, new energy definition:

Also known as non conventional energy. Refers to various kinds of energy of traditional forms of energy other than. Refers to the utilization or are beginning to promote positive research,energy, such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy and fusion energy.

Various forms of new energy is the heat energy directly or indirectly from inside the sun or the earth out of the generated. Solar energy, wind energy, biomass energy, including hydropower,geothermal energy and ocean energy, as well as derived from renewable energy, bio fuels and hydrogen generated energy.

Characteristics of two, new energy:

New energy including a variety of renewable energy and nuclear energy. Compared to conventional energy sources, new energy generally has the characteristics of less pollution,large reserves, to solve the serious problem of environmental pollution and resources(especially fossil energy) depletion problem has important significance. At the same time,because the new energy distribution, to solve the energy caused by the war has important significance.

According to the world the assertion, oil, coal and other resources will accelerate the reduction. Nuclear energy, solar energy will become the main energy.

Three, you mentioned two kinds of new energy introduction:

1, solar energy

Generally refers to solar radiation energy of the sun light. The main use of solar energy in the form of a photoelectric conversion of solar energy photothermal conversion, and conversion of three kinds of main ways of photochemistry

Generalized on solar energy on earth is a lot of energy sources, such as wind energy,chemical energy, potential energy of water causes or transformed into by solar energy form.

The use of solar energy methods include: solar electricity pool, through the photoelectric conversion contained in the sun light energy into electrical energy; solar water heater, the use of solar heat hot water, and use hot water power etc..

Solar energy can be divided into 2 types:

(1). Solar photovoltaic panels are a power device in the sun exposure will generate DC, from virtually all semiconductor materials (such as silicon) thin solid body made of photovoltaicbattery. Because there is no part of activity, so it can be long time operation without causingany loss. Simple photovoltaic cells for watches and computers to provide energy, photovoltaicsystem is more complex for the house lighting, and power supply. Photovoltaic panelcomponents can be made into different shapes, and components can be connected, togenerate more power. In recent years, the surface of the roof and building will be the use of photovoltaic plate assembly, even be used as windows, skylights or part of a screening device, which are often called photovoltaic facilities building integrated photovoltaic system.

(2). The solar thermal technology of solar thermal energy modern polymerization sunlight, and use its energy to produce hot water, steam and electricity. In addition to the use of appropriate technology to collect solar energy, the building can also make use of light and heat of the sun,the method is added in the design of appropriate equipment, such as the giant south windows or the use of building materials can absorb and slowly release the heat of the sun.

2, geothermal energy

The internal heat source can be derived from the earth gravity, tidal friction, chemical reaction and release of energy decay of radioactive elements. Radioactive heat energy is the mainsource of earth. China is rich in geothermal resources, widely distributed, has 5500 hot,geothermal field of 45, the total amount of about 3200000 megawatts of geothermal resources.