The balance between effect and energy saving in lighting design

In "Cihai", "illumination" is explained as follows: Measures to use various light sources to illuminate working and living areas or individual objects. Among them, the use of artificial light is called "artificial lighting", which uses the sun and sky light called "natural light".

With the continuous development of urban construction, people’s economic, cultural, and material living standards have rapidly increased. People are not satisfied with merely understanding light as a functional lighting and using it to improve their own living and working environment. Specifically speaking, on the one hand, it is necessary to satisfy people's basic living and work needs, that is, the light environment reaches a certain degree of illumination, brightness distribution, and color display, and other necessary conditions; on the other hand, people are also required to create a more comfortable and beautiful living space.

In modern cities, "artificial lighting" has created a magical "night city" for our lives. "Artificial Lighting" not only satisfies the lighting at night, but also plays an important role in the indoor and outdoor environmental art of modern architecture, whether it is shopping malls, hotels, stadiums, stage or other public places, from indoor to outdoor, from From shops, restaurants, homes to gardens and streetscapes, the splendid and colorful “artificial lighting” is displaying its fascinating charm everywhere, creating a picturesque mood for our lives.

However, compared to inexhaustible "natural lighting", "artificial lighting" is at the expense of energy consumption. Today, the city has implemented a large-scale lighting lighting project in order to display its own image, create a good light environment for people's lives, and promote the development of commerce and tourism. The use of lighting fixtures is increasing, and the proportion of electricity used in the city's total consumption is also increasing. Rapid economic development requires more and more adequate power supply and consumption, making the supply and demand of electricity contradictory. The shortage of power supply is difficult to ease in the short term, and both development and savings have become an inevitable direction of economic development. At this point, energy conservation and emission reduction have also become our inevitable choice.

But it does not mean that lighting efficiency is ignored and lighting fixtures are blindly reduced. Nowadays, the status and role of urban lighting are more and more important. Artificial lighting is an important means to expand the architectural aesthetic connotation and improve people's lives and work environment. Faced with the conflict between lighting effects and lighting energy saving, we must find out their balance points. As Marxism puts it, contradictions are the unity of opposites. As long as the two sides are in balance, coordination, and cooperation, things will show a state of harmony. The same is true for lighting applications. Only when the effect and energy saving reach a proper balance can the true harmony of beauty and environmental protection be achieved.

To achieve a balance between lighting effects and lighting energy conservation, we must pay attention to the role of lighting design. Appropriate lighting design can make the project reflect a good effect, while achieving the goal of avoiding the waste of “light” energy.

In the lighting design of a project, it is first necessary to determine what kind of effect or theme the project should exhibit, and then consider the illumination or brightness standard of the lighting design. And strictly in accordance with relevant standards for design.

Second, we must choose the best lighting. Night scene lighting has contour lighting, flood lighting, internal lighting and other ways. The most suitable lighting method should be selected according to different objects to be illuminated, so as to effectively improve the quality of the lighting and avoid unnecessary waste of energy. For example, if cast lighting methods are used on the facades of glass curtain walls, not only energy is wasted, but also there is no lighting effect. On the contrary, if the interior lighting is used properly, the structural characteristics of the building are also reflected. Relative energy saving effect.

Again, use appropriate lighting products. The selection of high-efficiency energy-saving light sources and high-reflectance lamps is the core of reducing lighting power. There are many light source products, and different product types will have their own advantages and disadvantages. For example, the high light output and low color rendering properties of high-pressure sodium lamps, and the high color rendering and low light output characteristics of incandescent lamps are the key in lighting design. Only by combining the characteristics of lighting products and using them reasonably can they be effective. The best balance with energy saving.

In addition, a reasonable lighting distribution system should be selected to provide a more stable voltage, reduce the voltage offset, to ensure good visual conditions, improve the life of the light source, and save energy, increase the power of the lighting circuit, reduce the power grid lighting circuit Power loss.

Vision is the first person's ability to perceive, and the production of vision is due to the reflection of light by the object and the reception and analysis of the light by the visual organ. In terms of human vision, there is no light without everything. The American architectural designer Luis Kang said: Light is emotional, it creates a field that can be united with people and connects people with eternity. It can create a form that cannot be obtained using general styling methods. In today's shortage of power supply, we must find the balance between lighting effects and lighting energy saving. Only in this way can we continue our colorful “Night City”.