Shanghai Yangtze River Tunnel Bridge is fully illuminated
Shanghai Yangtze River Tunnel Bridge is fully illuminated
Last night, the Shanghai Yangtze River Tunnel Bridge, which was open to traffic, was fully illuminated. In the Yangtze River Tunnel, according to ordinary fluorescent lighting, the power is 989 kW, and the lighting power for one day is more than 20,000 degrees. Now LED lighting is used, and the power consumption is equivalent to 30%. The basic lighting of the tunnel adopts the intelligent lighting control system of dimming and grading. On the exit and entrance lighting, the lighting controller is used for automatic control.
Last night, the Shanghai Yangtze River Tunnel Bridge, which was open to traffic, was fully illuminated. The lights in the Yangtze River Tunnel are shining, and the warm and cold light belts of the Yangtze River Bridge are in harmony, showing the beauty of the Twin Towers. At a glance, the night view of the Yangtze River Tunnel Bridge is like a piece of art standing in the mouth of the Yangtze River.
For the first time, the Yangtze River Tunnel lighting uses a different lighting method than other existing tunnels—the LED light source, which is bright and comfortable. Due to the long tunnel and 24 hours of uninterrupted lighting, the lighting load will become a major energy consumer, accounting for 40% to 50% of the total energy consumption in operation; while LED light source lighting can reduce energy consumption by 30%. In the Yangtze River Tunnel, according to ordinary fluorescent lighting, the power is 989 kW, and the lighting power for one day is more than 20,000 degrees. Now LED lighting is used, and the power consumption is equivalent to 30%.
The road lighting of the Yangtze River Bridge is about 1200 baht. Under the same electric power, the high-pressure sodium light energy used by the bridge is about 40% higher than that of the metal halide lamp, and the fog-passing performance is better. Under the same illumination standard road lighting requirements, the metal halide light source consumes more power. HPS. Through comparison, consider using a 250W high-pressure sodium lamp source, which is close to the luminous flux of a 400W metal halide lamp. Under the same lighting index requirements, the high-pressure sodium lamp source uses about 657,000 kWh of electricity per year than the metal halide lamp source. The basic lighting of the tunnel adopts the intelligent lighting control system of dimming and grading. On the exit and entrance lighting, the lighting controller is used for automatic control. (News Morning News Zhong Hui)
1200 street lamps have an annual power saving of 657,000 degrees
The Shanghai Yangtze River Tunnel Bridge was fully illuminated last night. This concrete dragon traversing the Yangtze River estuary is covered with brilliance, showing the beauty and splendor of only the night. The light in the Yangtze River Tunnel is smooth, just like a shuttle through time and space; the warm and cold light on the Yangtze River Bridge reflects each other, showing the wonders of the twin towers and the beauty of the rivers.
The Yangtze River Tunnel Bridge strives to promote new energy-saving technologies in lighting projects, and it embodies the concept of green environmental protection everywhere. In the tunnel lighting design process, the technicians use special calculation software to calculate the contrast, so as to quickly and conveniently determine the layout of the lamps, the height of the poles, the spacing of the street lamps, and the capacity of the light source to achieve a suitable illumination.
For the first time, the tunnel interior lighting uses a different LED lighting source than the other existing tunnels, making it feel bright and comfortable. In the Yangtze River Tunnel, according to ordinary fluorescent lighting, the lighting power of one day will be more than 20,000 degrees; now LED lighting, the power consumption is equivalent to a 30% discount. In addition, natural light is fully utilized, and a hybrid light transition mode is adopted at the tunnel entrance, and the corresponding power supply capacity can be reduced by 25%.
High-pressure sodium lamps are preferred for bridge road lighting sources. The Yangtze River Bridge includes 14.1 kilometers of the approach bridge and 1200 miles of street lighting. Under the same lighting requirements, the high-pressure sodium lamp source is about 657,000 kWh per year compared to the metal halide lamp source.
The basic lighting of the tunnel adopts an intelligent lighting control system with dimming and grading, which can detect the working condition of each LED tube in the tunnel. The tube inside the tunnel can start from 20% brightness and adjust upwards at 10% interval until 100% brightness, including shutdown, can be divided into 10 levels. This keeps the brightness inside the tunnel even and saves power. For example, in deep places, only 60% or 70% of the brightness is enough.
The control of the bridge road lighting combined with the implementation of the full bridge integrated monitoring system constitutes a control system with functions such as remote control, telemetry, remote communication and data information processing. Accurate remote control switch lights for all street lights in the whole bridge can be avoided to avoid energy waste caused by early opening or late closing. (Wen Wei Bao He Liandi)
New vision Shanghai Yangtze River Tunnel with LED lighting (Figure)
Shanghai Yangtze River Bridge commissioning landscape lights for all use LED light source
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