New energy products related to foreign trade include home solar power, electric water heaters, electric heaters and other categories. According to relevant public information, home solar energy has become popular in the European market due to the soaring prices of natural gas, electricity and other energy sources this year. At the same time, Chinese heating products continue to sell well. In the first three quarters of this year, sales of household electric water heaters, electric heaters and other categories surged on an international website. Sales of electric blankets increased fivefold.
Which type of nuclear energy does not belong to the field of new energies?
(1) Savable energy, that is to say the heat absorbed by the 'water:
Absorption Q = cm△t =4.2×103J/(kg?℃)×200kg×(45℃-20℃)=2×107J
(2) Geothermal steam drives the steam turbine to spin, converting the internal energy of the steam into the energy of the steam turbine. Mechanical energy, the steam turbine electrifies the generator to rotate, transfers the mechanical energy to the generator, then the generator converts the mechanical energy into electrical energy. .
(3) Compared to thermal energy production, geothermal energy production has a low cost, does not pollute the air and the environment and does not destroy the ecological balance.
So the answer is: (1) 2×107; (2) Internal energy is converted into electrical energy; (3) There is little pollution.
Things that do not fall under the scope of new energy include oil/petroleum products, natural gas, coal, nuclear power and biogas.
1. Oil/petroleum products. Petroleum and its derivatives, such as gasoline, diesel, kerosene, etc., aretraditional energy sources extracted from fossil fuels.
2. Natural gas is also a fossil fuel and does not belong to the field of new energies. It is widely used in power generation, heating, industry and other fields.
3. Coal, Coal is a traditional energy resource, mainly used in power generation, industrial production and heating. It is a fossil fuel.
4. Nuclear energy. Although nuclear energy is an efficient and clean energy source, because nuclear energy is obtained by nuclear fission or nuclear fusion, rather than renewable energy, it is not a new energy source. category.
5. Biogas: Biogas is a mixed gas produced by the decomposition of organic waste, mainly comprising methane and carbon dioxide. Although biogas is a renewable energy sourceuvelable, it is generally not classified as a new energy source.
New energy sources include:
1. Solar energy
Solar energy uses solar radiation to convert into electricity or heat. Solar panels can convert solar energy into electricity, which can be used to generate or provide electricity, while solar thermal systems can be used to heat water or provide space heating.
2. Wind energy
Wind energy is energy that is converted into electricity by operating wind turbines driven by the wind. Wind turbines use wind to turn blades to drive generators to produce electricity, using wind energy to generate electricity or supply electricity.
3. Hydraulic energy
Hydraulic energy uses courants, water level differences or ocean tides to generate kinetic energy.And converted into electricity. Hydropower uses the flow of water to drive a turbogenerator to produce electricity.
4. Biomass Energy
Biomass energy refers to the form of energy that uses organic matter (such as wood, agricultural waste, etc.) for energy conversion. Biomass energy can be used by biomass power generation, biomass fuel, etc.
5. Geothermal Energy
Geothermal energy refers to the form of energy that uses geothermal thermal energy inside the earth for energy conversion. Geothermal energy can be used through geothermal power generation, geothermal heat pumps, etc.