1. Definition of green lighting
The scientific meaning of green lighting: Green lighting refers to the use of scientific lighting design, the use of high efficiency, long life, safety and stable performance of lighting electrical products (electric light source, lighting electrical accessories, lamps, wiring equipment, and dimming control Equipment and light control devices) improve the conditions and quality of people's work, study and life, thus creating an efficient, comfortable, safe, economical and beneficial environment that fully reflects the lighting of modern civilization.
The terminology of lighting design standard explains: “Green lighting is the lighting that saves energy, protects the environment, and improves people's production, work, learning efficiency and quality of life, and protects their physical and mental health.â€
2. The purpose of implementing green lighting
2.1 Saving energy
According to the International Commission on Illumination (CIE), the total electricity consumption of lighting power points in 16 developed countries in 2000 was about 11%, while the energy efficiency of lighting was 651m/W, and the annual electricity consumption per capita was about 1200kW·h.
China's lighting power consumption is about 10% to 12% of the total power generation. In 2003, China's power generation was 19701.6 kW·h, and lighting power was about 1970.6-236.41 billion kW·h, which is more than the total power generation of the Three Gorges Power Station. However, China's per capita lighting power consumption is only about 150 kW·h, which is at a low level. However, the total electricity consumption of lighting is increasing year by year. It can be seen that the power consumption is large and the task of saving energy is arduous.
Artificial lighting is mainly derived from the conversion of electrical energy into light energy, which is mostly derived from the burning of fossil fuels. According to current estimates, the life span of oil, natural gas and coal on the earth is limited. However, as the amount of exploitation increases year by year, the years of exploitation of these fossil fuels will be further shortened. The world's energy is not optimistic, saving energy, and it is of great significance for the preservation of the earth's resources, prolonging its depletion years, and realizing the sustainable development of human society.
2.2 Protecting the environment
According to the data, for every 1 kW·h of electricity produced, the pollutants that will be generated to the air are:
The burning of fossil fuels produces harmful gases such as carbon dioxide (CO2), sulfur dioxide (SO2), and nitrogen oxides (NOx), causing problems such as the destruction of the Earth's ozone layer, global warming, and acid rain. Of the factors contributing to global warming, 50% are formed by carbon dioxide, and about 80% of carbon dioxide comes from the burning of fossil fuels. It can be seen that saving energy is of great significance to environmental protection.
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