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The full name of solar thermal power generation is solar thermal power generation, which refers to the use of large-scale array parabolic or saucer-shaped mirror surface to collect solar thermal energy, provide steam through heat exchange devices, and combine with the process of traditional steam turbine generators to achieve the purpose of power generation. The use of solar thermal power generation technology avoids the expensive silicon crystal photoelectric conversion process, which can greatly reduce the cost of solar power generation. Moreover, this form of solar energy utilization has an advantage that other forms of solar conversion cannot match, that is, the hot water heated by solar energy can be stored in huge containers, and it can still drive the turbine to generate electricity for a few hours after the sun has set.
The principle of solar thermal power generation is to gather sunlight into the solar energy collection device through a mirror, use the heat transfer medium (liquid or gas) in the solar energy heating collection device, and then heat the water to form steam to drive or directly drive the generator to generate electricity.
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In a nutshell, solar thermal power generation is the use of solar thermal power generation, while photovoltaic power generation is a type of electricity generation using polysilicon as a medium. CSP, China is in its infancy, the 11th Five-Year Plan in the 863 plan has a project on solar thermal power generation, in Yanqing County, Beijing has an experimental base, Huangming Solar Energy Company has a trial of scientific research in this regard.
At present, the world's largest commercial solar thermal tower power station is Spain PS10, with an installed capacity of 11MWE, the largest solar thermal tower power station under construction is Spain PS20, with an installed capacity of 20MWE for two years, the world's solar thermal power generation under construction installed capacity is 8 times that of 07 years ago 20 years, solar thermal power generation technology has entered a period of rapid development. The one-time investment in solar thermal power generation is 2,500-2,900 US dollars, and the annual efficiency of solar thermal power generation can reach 15%-20%, and the power generation cost is 15 cents kwh. With the development of technology and scale, it is expected that the cost of its power generation will reach around 4 cents in 2020.
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Let's start with entropyEntropy: A measure used to describe the degree of disordered disorder
The greater the entropy, the greater the disorder. This concept can be used in information theory as well as in thermodynamics.
The kinetic energy of molecules with high energy is large, and the kinetic energy of molecules with low energy is small, so the high-energy molecules will hit the low-energy molecules and transfer the energy to other molecules.
That is, in a natural process, the flow of energy is unidirectional, and can only flow from high energy to low energy.
So, our world is entropy.
Just like boiling water mixed with cold water, it becomes lukewarm water
The so-called "cold" is low energy, and from cold to hot, it needs to absorb energy.
Water molecule energy order (degree of molecular chaos):
Solid, liquid, gaseous.
Now, let's talk about the principle of thermal radiation power generation.
Thermal radiation is an electromagnetic wave that can directly transfer heat (energy).
The sun's heat is reflected to a point, which generates extremely high heat energy, which is used to heat water and drive a steam turbine to generate electricity (electromagnetic induction).
The process is: liquid attack sensitive water endothermic steam kinetic energy power generation.
One-on-one-one.
The amount of heat absorbed determines the amount of kinetic energy (that is, the amount of electricity generated).
Think about it, why do you need so many reflectors?
One doesn't work? The reason is that the heat is not enough, and it takes kinetic energy to drive the steam turbine to generate electricity.
Let's look at the process of ice turning into water:
Solid, endothermic and liquid.
This process also has kinetic energy, but it is too small, at the molecular levelTechnology does not allow it, power generation is low, and it is not necessary(Do not block Zen oak such as skipping molecules, directly with nuclear energy).
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1. Solar photovoltaic.
Both solar thermal panels convert light energy into electricity. The difference is that in a photovoltaic system, solar energy will be directly converted into slag and replaced with electricity, while in a thermal system, solar energy is converted into thermal energy, and the thermal energy is then passed through the heat engine.
workmanship, generating code rock quiet force.
2. For ordinary families, the difference between the two is not very big. For large enterprises, the cost and return issues need to be considered, so the difference between the two needs to be discussed in special detail.
3. Photovoltaic power generation is based on the photovoltaic effect.
Yes, electrons are produced when photons hit a special power generation plate. Therefore, if there is enough light, an electric current can be generated. The principle of solar thermal system is less complicated, it uses light energy to generate heat, and uses heat energy as power to generate electricity.
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<>1. Solar photovoltaic and solar thermal power generation panels convert light energy into electrical energy. The difference is that in a photovoltaic system, solar energy will be directly converted into electrical energy, while in a thermal energy system, solar energy is converted into thermal energy, and the physical thermal energy is then worked by a heat engine to generate electricity.
2. For ordinary families, the difference between the two is not very big. For large enterprises, the difference between cost and return needs to be discussed in special detail.
3. Photovoltaic power generation is based on the photovoltaic effect, and electrons will be generated when photons hit a special power generation panel. Therefore, if there is enough light, an electric current can be generated. The principle of the solar thermal system is not so complicated, it uses light energy to generate heat, and uses heat energy as a moving model to generate electricity.
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Hello, it is a pleasure to serve you and give you the following answer: Heat-generating light refers to light that can produce heat, which is the process of converting electromagnetic waves into heat. Heat-generating light can be used to heat objects or to provide heat to the human body.
Causes of Hair Slip Problems:1Since the energy of the generated light is too strong, it may cause damage to the human body, especially to the eyes, which may lead to vision loss.
2.Heated light can burn objects, especially flammable ones, and may start a fire. Workaround and Procedure Steps:
1.When using hot light, you should take care to protect your eyes and avoid looking directly at the hot light to avoid damaging your eyes. 2.
When using heat-generating light, care should be taken to avoid burning objects, especially flammable ones, to avoid causing fire. 3.When using heat-generating light, care should be taken to control the energy of the heat-generating light to avoid causing harm to the human body.
4.When using this heat-generating light, you should pay attention to controlling the distance of the heat-generating light to avoid causing harm to the human body. Personal Tips:
1.When using a hot light, you should take care to protect yourself from injury. 2.
When using heat-generating light, care should be taken to control the energy of the heat-generating light to avoid causing harm to the human body. 3.When using heat-generating light, attention should be paid to controlling the distance of the heat-generating light to avoid causing harm to the human body.
4.When using heat-generating light, care should be taken to avoid burning objects, especially flammable ones, to avoid starting a fire.
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