-Biomass energy and nuclear energy

Energy is the driving force for human beings to overcome difficulties and survive. For example, the sun gives us light and heat, wind-driven cars generate electricity, burning gasoline can be used to propel cars, and using natural gas can be used for cooking and heating. All these are energy sources. In recent years, no matter nuclear fission, nuclear fusion or solar energy research and development, it has shown a thriving scene. However, the fuel reserves in today's energy supply market are limited, increasingly exhausted, unevenly distributed and seriously polluted when used. In view of the production equipment and application technology that have been put into use at present, it is predicted that by the end of this century, the main energy will still be the mainstream of energy. Therefore, it is urgent for human beings to find better fuels and speed up the improvement of existing energy utilization technologies. The following are two new energy sources that will be widely used in the future.

1. Biomass energy of new energy

Biomass energy refers to all kinds of organisms formed through photosynthesis, including all animals, plants and microorganisms. The so-called biomass energy is the energy form in which solar energy is stored in biomass in the form of chemical energy, that is, energy with biomass as the carrier. It comes directly or indirectly from the photosynthesis of green plants, and can be converted into conventional solid, liquid and gas fuels, which are inexhaustible. It is a kind of renewable energy and the only renewable carbon source. The original energy of biomass energy comes from the sun, so in a broad sense, biomass energy is a form of solar energy. At present, many countries are actively researching, developing and utilizing biomass energy. Biomass energy is contained in plants, animals, microorganisms and other organic substances that can grow, and it is converted from solar energy.

1, the characteristics of biomass energy

1) Renewable biomass is a renewable resource. Biomass energy can be regenerated by photosynthesis of plants, which is rich in resources and can ensure the sustainable utilization of energy.

2) The sulfur content and nitrogen content of low-pollution biomass are low; When biomass is used as fuel, because the carbon dioxide required for its growth is equivalent to the amount of carbon dioxide it emits, the net carbon dioxide emission to the atmosphere is close to zero, which can effectively reduce the greenhouse effect;

3) In areas where coal is widely distributed, biomass energy can be fully utilized;

4) The total biomass fuel is very rich. The annual output of biomass energy far exceeds the total energy demand in the world, which is equivalent to ten times the total energy consumption in the world at present.

2. Classification of biomass energy

According to different sources, biomass suitable for energy utilization can be divided into forestry resources, agricultural resources, domestic sewage and industrial organic wastewater, municipal solid waste and livestock manure. Forestry biomass resources refer to biomass energy provided by forest growth and forestry production, including firewood forest, loose wood, residual branches and leaves and sawdust in forest tending and thinning. Agricultural biomass energy refers to crops; Waste from agricultural production, such as crop stalks left in farmland after harvest. Industrial organic wastewater is mainly the wastewater discharged in the production process of alcohol, wine making, sugar making, food, pharmacy, paper making, slaughter and other industries. , rich in organic matter. Municipal solid waste is mainly composed of municipal household waste, commercial and service waste and a small amount of construction waste.