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Persist in green development, protect the clear water and blue sky-Daxing Airport's green development concept practice

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  • Time of issue:2021-05-21
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(Summary description)Beijing Daxing International Airport is a major landmark project in the capital that General Secretary Xi Jinping cared for and personally promoted. From planning and design to engineering construction, Daxing Airport has always adhered to the concept of green development and promoted engineering construction in accordance with the overall goal of the national green ecological construction demonstration zone.

Persist in green development, protect the clear water and blue sky-Daxing Airport's green development concept practice

(Summary description)Beijing Daxing International Airport is a major landmark project in the capital that General Secretary Xi Jinping cared for and personally promoted. From planning and design to engineering construction, Daxing Airport has always adhered to the concept of green development and promoted engineering construction in accordance with the overall goal of the national green ecological construction demonstration zone.

  • Categories:News Center
  • Author:
  • Origin:
  • Time of issue:2021-05-21
  • Views:0
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Beijing Daxing International Airport is a major landmark project in the capital that General Secretary Xi Jinping cared for and personally promoted. From planning and design to engineering construction, Daxing Airport has always adhered to the concept of green development and promoted engineering construction in accordance with the overall goal of the national green ecological construction demonstration zone. The flight area of Beijing Daxing Airport at the beginning of the flight has the hardware conditions of a world-class airport in terms of low-carbon operation, green and energy-saving, and environmentally friendly.

Lateral runway configuration.The Daxing Airport terminal is located in the center of the four runways. Two parallel north-south runways are arranged on the west side, and a parallel north-south runway and a lateral runway are arranged on the east side. Compared with the other three parallel runways, flights taking off from the lateral runway to east China can shorten the flight time in the air by nearly 3 to 5 minutes. Compared with the east runway, the taxiing time of flights taking off from the north runway can be shortened by about 3 minutes. Taking into account the noise impact of the take-off aircraft, the lateral runway deflected to the south by an angle of 20 degrees can avoid the main urban area of Langfang.

 

APU alternative facilities.All the near aircraft positions are equipped with a lift-type underground well device to provide 400HZ power supply and air-conditioning cold and heat sources to the aircraft. The lifting device is closer to the aircraft, and the length of the air supply hose is between 7 meters and 15 meters, which can greatly reduce the energy consumption and transmission loss of the fan. The cold source comes from a centralized refrigeration system, and the transmission medium is ethylene glycol. The temperature of the cabin air outlet can reach minus 2 degrees Celsius; the heat source comes from the terminal heating system, and the cabin air outlet temperature can reach 45 degrees Celsius, which can provide passengers with a more comfortable interior Air environment.

Energy-saving lighting system.100% of taxiway navigation aid lamps use LED light source lamps. West 1st and West 2nd runways are the first to use LED light source lamps in China; east and north runways use halogen light source lamps that can be controlled in two directions, which can realize that only one side light can be turned on according to the running direction. Features. According to actual measurement and comparison, the average daily energy consumption of the navigation lights of a single LED light source runway in Daxing Airport is 600 kWh, which is more than 29% lower than that of traditional light sources.

Ecological water system.The whole site is equipped with a regulating reservoir with a total volume of 2.8 million cubic meters, and the rainwater collection rate is 100%; the discharge flow rate does not exceed 30 cubic meters per second, and the total annual runoff control rate can reach more than 85%. Simultaneously construct an independent de-icing waste liquid collection system and oil pollution collection and disposal device to effectively avoid the damage of waste liquid and waste oil to water resources. 100% of the rain and sewage diverted from the whole site, and the sewage treatment rate reached 100%.

 
On September 25, 2019, General Secretary Xi Jinping personally attended the commissioning ceremony of Beijing Daxing International Airport and demanded that Daxing Airport be a new benchmark for operations. Since the start of the flight, Daxing Airport has continued to thoroughly implement the new development concept and actively explore the successful operation model of the "four-type airport". Daxing Airport’s flight area has also worked hard to implement green airports and has achieved initial practical results.

Steadily increase the utilization rate of shore power during aircraft berthing.Since the start of the flight, Daxing Airport and airlines have jointly increased the utilization rate of APU alternative facilities, investigated abnormal situations one by one, and implemented a serious accountability mechanism; simultaneously promoted equipment use training to achieve full staff appraisal and induction; post-maintenance is transformed into pre-inspection and maintenance. Daily inspection, weekly inspection, and monthly inspection system. In August of this year, the APU alternative facility docked 11,444 aircraft sorties, reaching the 100% utilization level under the conditions of exhaustion; accordingly, the aircraft fuel emissions were reduced by 1696.8 tons, and the pollutant emissions were reduced by 30.4 tons, which is energy-saving and emission-reducing. The benefits are significant. With the full production of APU replacement facilities in remote positions, the aircraft parked at Daxing Airport will be able to close all APUs under the conditions of full use, achieving zero emissions and zero noise during parking.

Accelerate the realization of electrification of vehicles in the flight zone.Since the start of the flight, Daxing Airport has actively implemented the requirements of the Civil Aviation Administration to win the blue sky defense war, and set up a joint working group beyond the organizational boundary to overcome the impact of the new crown epidemic. At the end of June this year, all 236 fuel vehicles with alternative products were removed. At present, there are 1,647 vehicles in the flight area, of which 1244 are electric vehicles, and the proportion of electric vehicles is 75.5%. In August of this year, the charging power of electric vehicles was 353,000 kilowatt-hours; compared with fuel vehicles, it saved 86.5 tons of standard coal and reduced carbon dioxide emissions by 35.2 tons. At the end of this year, 108 sets of high-low-voltage integrated fast intelligent charging piles supplemented by Daxing Airport can be put into production. By then, Daxing Airport will provide 520 charging points, which can efficiently guarantee the charging needs of electric vehicles. Daxing Airport is developing a new energy vehicle monitoring platform simultaneously, and functional tests can be carried out before the end of the year.

Coordinate and improve the aircraft's centralized deicing mode.The flight area of Daxing Airport has set up 2 centralized de-icing pads with a total of 16 de-icing stations, correspondingly equipped with de-icing refilling stations and de-icing waste liquid collection facilities, and has the conditions for centralized de-icing and defrosting operations. Daxing Airport coordinated with airlines to select de-icing agents to promote price negotiations; formulate de-icing plans and improve operating procedures; simultaneously carry out de-icing training and de-icing drills. In the winter of 2019-2020, Daxing Airport implemented a total of 1,439 centralized deicing and defrosting. There was no unsafe incident caused by deicing. The normal rate of flights under snow and frost weather was maintained at 80% and 95% respectively. During the entire deicing season, 1,217 tons of de-icing waste liquid was recovered, achieving 100% recycling of de-icing waste liquid and realizing zero pollution to the surrounding water system. With the commissioning of de-icing waste liquid recycling facilities, Daxing Airport will have a 100% recycling capacity for de-icing waste liquid recovered from airport clusters in the Beijing-Tianjin-Hebei region.

Gradually optimize the functions of the Advanced Ground Guidance System (A-SMGCS).Daxing Airport successfully realized the A-SMGCS Level 4 function at the beginning of the flight, becoming the first airport in the world that can guide aircraft taxiing by lights in all weather and all regions. Daxing Airport cooperates with air traffic control and equipment manufacturers to carry out system optimization and comprehensively implement preventive maintenance to ensure the continuous stability and efficiency of the system. So far, the A-SMGCS system has successfully guaranteed flight guidance under special weather such as low visibility, heavy snow, and thunderstorms, and has successfully replaced the guided vehicles. Compared with the traditional method, the A-SMGCS system (calculated based on an average of 650 flights per day) can indirectly save about 1,848 liters of fuel consumption of the guided vehicle per month and reduce about 5 tons of carbon dioxide emissions. Compared with the traditional taxiway lights are always on, the A-SMGCS system only needs to turn on the lights within 300 meters before the plane is taxiing, and the average daily taxiway lights on time is reduced by 90%.

 
In the process of building a green airport, Daxing Airport is also facing new difficulties. There are large areas of wasteland and woodland around the airport, and the ecological environment is diverse, suitable for birds to inhabit, and pose a huge challenge to the airport bird strike prevention. Daxing Airport faced the difficulties and proposed the "four-zone prevention and control" concept of bird strike prevention, and simultaneously improved the construction of the SMS system for bird strike prevention. In the core area and the responsibility area, establish a safety accountability network to explore the application of new technologies of “integration of exploration, driving and knowledge”; in the ecological area and resettlement area, establish an environmental management joint meeting covering the Civil Aviation Daxing Supervision Bureau, the governments of the two places, the air force and the airport System, explore the area management responsibility system, implement ecological governance, pigeon management and control, safety publicity and other responsibilities. Judging from the current frequency of bird strikes, the environmental governance of the ecological zone still has a long way to go, and it is eagerly hoped that the civil aviation administration can coordinate the introduction of regulations on ecological management around the airport and consolidate the responsibilities of all parties concerned.

When inspecting Shaanxi, General Secretary Xi Jinping pointed out that protecting the ecological environment is of great and far-reaching significance for ensuring the longevity of the Chinese nation, achieving the "two centenary" goals, and achieving sustainable development. Daxing Airport will continue to promote the construction of a green airport with the spirit of being responsible to the party, history, and people, and continue to defend the blue water and blue sky of the capital.

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