The hottest mall lighting energy-saving design bas

Energy saving design of mall lighting based on green lighting

Abstract: energy saving of mall lighting is of great significance for green lighting engineering, and the energy-saving effect is very considerable. CIE once predicted that by 2000, the per capita lighting energy consumption will be 750kwh, and the lighting power consumption will account for 10% of the total power consumption. Although the lighting power consumption will decline year by year, the absolute value of lighting power consumption will increase year by year. With the application of advanced energy-saving technologies such as high-efficiency energy-saving lamps and mall lighting microcomputer control system in mall lighting design, mall lighting energy conservation can be achieved

key words: Mall lighting energy saving green lighting engineering high efficiency energy saving lamps Untitled Document mall electrical lighting design section β—— Analysis of measures to reduce the loss of distribution line after punching the sample. It is easy for designers to ignore. There are two ways to solve this problem: adjusting the power factor; Realize reasonable power distribution mode. The illuminator should be of high power factor type, and a compensation capacitor should be added to the ballast, which can generally make cos φ ≥ 90% line loss is naturally reduced (line loss p=i 2 R) Optimize the distribution mode, change the single-phase to two-phase three wire or three-phase four wire system, and the line loss can be reduced by 75% - 80% compared with the original (calculation omitted) except for the first verification. The following conclusions can be drawn: conclusion 1: decentralized compensation and optimization of distribution mode are necessary conditions to reduce line loss and easy to achieve Reasonable selection of illuminance the current recommended illuminance standards for shopping malls in China [1, 2] are shown in Table 1; Table 2 shows the statistical data of illumination intensity of shopping malls in Japan [3]. Through comparison, it can be seen that the illumination standard of shopping malls formulated in China is relatively low, which is mainly due to energy conservation. Because meeting the high illumination standard means that more lamps and lanterns are invested and more electric energy is consumed than meeting the relatively low illumination standard. Therefore, the selection of illumination is very important. Table 1 place category reference plane and height illumination standard value (LX) low, medium and high general store business hall general area 0.75m horizontal 75100150 counter counter counter counter top 100150200 shelf 0.5m vertical plane 100150200 display cabinet window goods location plane 200300500 indoor vegetable market business hall 0.75m horizontal 5075100 optional shopping mall business hall 0.75m horizontal 150200300 Table 2 shopping mall type shopping mall environment type (LX) Bright general clothing shoes shop clocks and glasses decoration shop medical supplies cosmetics precious metal furniture electrical appliances and notes explained in the certificate musical instruments photographic equipment food self selection shopping mall 300~500 700~1000 300~500 500 300~500 1000~1500 200~300 500~700 200~300 300~500 20 in order to deal with many aspects of environmental problems, the choice of 0~300 700~1000 illumination has certain flexibility, small selection, dim; If the selection is large, it will be wasted (and it is easy to produce glare). The author believes that; It can be determined according to the following factors