An airport clearance assessment method for smoke emission obstacles

A smoke emission and obstacle technology, applied in the field of aviation safety, can solve the problems of inability to make flight safety assessments

Active Publication Date: 2022-04-26
天津航大天元航空技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an airport clearance assessment method for smoke discharge obstacles, so as to alleviate the technical problem that the prior art cannot evaluate flight safety according to the smoke discharge of buildings

Method used

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  • An airport clearance assessment method for smoke emission obstacles
  • An airport clearance assessment method for smoke emission obstacles
  • An airport clearance assessment method for smoke emission obstacles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0130] Evaluate the flue gas emission of No. 1 building. Since No. 1 building has not been put into operation and is still in the construction design stage, there is no measured data of flue gas outlet temperature and flue gas outlet velocity. Therefore, the data adopts the analog method and takes conservative values ​​for calculation. Combined with relevant test reports, theoretical calculation, simulation and evaluation of flue gas and water vapor, the temperature Ts of the flue gas at the flue gas outlet is 72°C, that is, 345.15K. According to the building number 1, the height of the exhaust pipe is 80m, the inner diameter of the exhaust pipe is 4.6m, and the exit velocity of the flue gas is, ν s Take 8m / s.

[0131] When determining the range of ambient wind speed and ambient temperature, the average wind speed at a height of 10 meters above the ground in the last 5 years is obtained by querying the local meteorological data over the years It is 1.8 m / s, and the ambien...

Embodiment 2

[0142] Evaluate the flue gas emission of No. 5 building. Since the No. 5 building has not been put into operation and is still in the construction design stage, there is no measured flue gas outlet temperature and flue gas outlet velocity data. Therefore, the data adopts the analog method and takes conservative values ​​for calculation. Combined with relevant test reports, theoretical calculation, simulation and evaluation of flue gas and water vapor, the temperature Ts of the flue gas at the flue gas outlet is 72°C, that is, 345.15K. According to the building number 5, the height of the exhaust pipe is 85m, the inner diameter of the exhaust pipe is 4.4m, and the exit velocity of the flue gas is, ν s Take 8m / s.

[0143] When determining the range of ambient wind speed and ambient temperature, the average wind speed at a height of 10 meters above the ground in the last 5 years is obtained by querying the local meteorological data over the years It is 1.8 m / s, and the ambie...

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Abstract

The invention provides an airport clearance evaluation method for smoke discharge obstacles, belongs to the technical field of aviation safety, and solves the problem that the technology cannot evaluate flight safety according to the smoke discharge of buildings. The method includes: obtaining information on the obstacle restriction surface of the airport, building height and smoke data; obtaining the range of ambient wind speed and ambient temperature; calculating the range of smoke lift height according to the range of ambient wind speed, ambient temperature and smoke data; According to the range of flue gas lifting height, the ambient wind speed and ambient temperature of the maximum flue gas lifting height are used as the simulated ambient wind speed and simulated ambient temperature; based on the simulated ambient wind speed and simulated ambient temperature, simulation tools are used to simulate the flue gas at the level of Diffusion range data in the direction and vertical direction; calculate the effective height of the building based on the height of the building and the maximum value of the smoke lift height, and evaluate the compliance of the airport clearance for obstacles based on the effective height.

Description

technical field [0001] The invention relates to the technical field of aviation safety, in particular to an airport clearance evaluation method for smoke discharge obstacles. Background technique [0002] The flue gas emitted by industrial facilities diffuses in the atmosphere mainly in the form of turbulent flow, which disturbs the surrounding air and generates a large amount of turbulent flow. When the aircraft passes through the effective height of the smoke emitted by the chimney, it will be affected by the turbulence generated by the smoke, which will cause turbulence and threaten flight safety. [0003] When evaluating the safety of industrial facilities involving smoke emissions around the airport, the impact of the smoke on flight safety must be considered. At present, there is a lack of flight safety assessment methods involving smoke emissions. [0004] Therefore, the prior art cannot evaluate the flight safety according to the smoke emission of the building. Co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F30/13G06F17/11
CPCG06F30/20G06F30/13G06F17/11
Inventor 谢春生赵向领宋果家关凯赵龙王晓敏王玉王强李皛晨翟立军
Owner 天津航大天元航空技术有限公司
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