Analysis of large garage application of LED lighting

Large garage the analysis of the application of LED lighting zhu ll Zhou Ainong, hua cao, zhang Ai, wang jie ( Design institute in chongqing, chongqing 400015) Pick to: with a large garage project, introduces the usage of LED lighting after transforming, the contrast analysis of the field measured data before and after the modification. In civil buildings should reasonably use of LED lighting, avoid equipment line trough installation height below the LED light, should attach great importance to the late management of LED lighting at the same time. Key words: large garage; LED lighting; Energy consumption; Illuminance 0 lead in recent years, fast development of LED lighting, the government to subsidize companies invest a lot of resources, thereby improving the LED domestic share, at the same time the market demand is also rising, but the LED key relies heavily on foreign technology, so the domestic LED lighting performance and there is still a big gap between overseas. At the same time, fake and inferior products popular domestic, lack of product quality supervision, has considerable influence on the quality of lighting. Based on field survey, a large garage renovation project for the usage of LED lighting in the garage after transforming are analyzed. 1 garage illumination measured to select a large garage representative 4 f, 6 f field measurement, the energy-saving situation were analyzed. Garage 4 f, 6 f floor area are 598 m2, 4 284 f garage locale, single tube LED T8 fluorescent lamp, 6 f 277 set, single tube LED T8 fluorescent lamp. Regardless of the lamps and lanterns price and maintenance cost, only from energy consumption contrast analysis. In practical use, garage management in different period of time every day to control management of lamps and lanterns, generally 1 h peak commuting, lamps and lanterns is opened entirely; 23:00 at 7:00 ~ 8 h, open only a quarter of the lamps and lanterns; The remaining 14 h, open the 1/2 lamps and lanterns. The garage lighting lamps and lanterns use a day is 24 h, 2 h full open of lamps and lanterns; The rest of the time, lamps and lanterns is only 1/2. Garage 4 f energy consumption situation as shown in table 1, in which electricity according to 0. 845 8 yuan/kWh calculation. Table 1 garage 4 f energy consumption situation after reconstruction of tube type T8 fluorescent lamp before the LED fluorescent tube input/(total power W/a) 40161 d all the light electricity/kWh ( Time-sharing consider) All light electricity/kWh (9841 a Time-sharing consider) 5431 according to the price of the market mainstream, T8 fluorescent lamp every 10 yuan only, LED T8 light every only 35 yuan, the garage 4 total price difference of 0 f lamps and lanterns. 710000 yuan, saving electricity about 3. Seven months to recover the cost of lamps and lanterns more spending, has not yet been considered the service life of the LED lamp is about 10 times of fluorescent light as well as the maintenance cycle and cost and other factors. From the above calculation, LED lighting has the absolute advantage in energy saving. Now for the LED lighting illumination conditions for measurement analysis. According to GB/T 18204. 21 - 2000 'public illumination method' [ 1] 4. Article 1, the determination of 10 points per 100 m2 in cloth, combined with the characteristics of the garage internal to take 10 points to be chosen every two span test. Test point and the light source position signal as shown in figure 1. Test to select two floors, four kinds of luminaires, environment under different illuminance values: a quarter of the intensity of illumination, point 1, 5 lights; 1/2 illumination, point 1, 4, 6, 7 lights; Three-quarters of illuminance, point 1, 3, 4, 5, 6, 7 lights; 100% of illuminance. The garage 4 f / 6 f ( Lighting LED T8 tubes) Each test point illuminance values as shown in table 2. Figure 1 test points and light source position your table 2 garage 4 f / 6 f ( Lighting LED T8 tubes) 49

12 the rest in full on the next page