Airport clearance assessment method for flue gas 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: 2022-03-04
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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  • Airport clearance assessment method for flue gas emission obstacles
  • Airport clearance assessment method for flue gas emission obstacles
  • Airport clearance assessment method for flue gas 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 No. 5 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 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 ambien...

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Abstract

The invention provides an airport clearance assessment method for flue gas emission obstacles, belongs to the technical field of aviation safety, and solves the problem that the flight safety cannot be assessed according to the flue gas emission of a building in the prior art. The method comprises the following steps: acquiring airport obstacle limiting surface information, building height and smoke data; obtaining the range of environment wind speed and environment temperature; according to the environment wind speed, the environment temperature range and the flue gas data, the flue gas lifting height range is calculated; according to the flue gas lifting height range, the environment wind speed and the environment temperature with the maximum flue gas lifting height value serve as the simulated environment wind speed and the simulated environment temperature; based on the simulated environment wind speed and the simulated environment temperature, simulation is conducted through a simulation tool, and diffusion range data of the smoke in the horizontal direction and the vertical direction are obtained; and calculating the effective height of the building according to the height of the building and the maximum value of the flue gas lifting height, and performing airport clearance conformity evaluation on the obstacle according to 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 Applications(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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