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A Method for Determining the Ventilation Efficiency of Urban Partial Spaces

A technology of local space and determination method, applied in the direction of design optimization/simulation, CAD numerical modeling, etc., can solve the problems such as the ventilation efficiency and volume influence of outdoor space that cannot be objectively reflected, and achieve the effect of objective response and improvement of accuracy.

Active Publication Date: 2022-03-25
NANJING UNIV
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Problems solved by technology

However, these indicators are easily affected by the volume of the area to be measured, and cannot objectively reflect the ventilation efficiency of the outdoor space. Therefore, how to determine the ventilation efficiency based on the concentration of pollutants has become an urgent technical problem in this field.

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  • A Method for Determining the Ventilation Efficiency of Urban Partial Spaces
  • A Method for Determining the Ventilation Efficiency of Urban Partial Spaces
  • A Method for Determining the Ventilation Efficiency of Urban Partial Spaces

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Embodiment Construction

[0044] Next, the technical solutions in the embodiments of the present invention will be described in connection with the drawings of the embodiments of the present invention, and it is understood that the described embodiments are merely the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art are in the range of the present invention without making creative labor premise.

[0045] It is an object of the present invention to provide a method of determining a local space ventilation efficiency determination method, a ventilation and effectiveness of the local space of the city.

[0046] In order to make the above objects, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] figure 1 A flow chart of a method for...

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Abstract

The invention discloses a method for determining the ventilation efficiency of a local urban space. The method includes: determining the normal escape area of ​​pollutants in the area to be measured; determining the concentration of pollutants in the area to be measured; calculating the escape velocity of pollutants according to the concentration of pollutants and the normal escape area of ​​pollutants; Ventilation efficiency. The invention adopts the pollutant method to calculate the escape velocity of the pollutant to the escape area, thereby improving the accuracy of calculating the escape velocity of the pollutant. In addition, the present invention determines the ventilation efficiency according to the escape velocity of pollutants, which is not affected by the volume of the area to be tested, and can more objectively reflect the ventilation efficiency of the area to be tested.

Description

Technical field [0001] The present invention relates to the field of ventilation, in particular, to a method of determining a urban local space ventilation efficiency. Background technique [0002] With the deep development of reform and opening up, my country's urbanization development process is constantly accelerating, and urbanization will have to expand urban construction area, and urban construction is often neglecting the ventilation performance of the city, and the heat and high of human production life. The concentration contaminants did not have timely diffusion and dilution, thereby affecting the comfort of urban thermal environment and wind environment. Good urban ventilation conditions are important to optimize air quality, and improve urban heat island effects is of great significance. For the quantitative research of urban ventilation, we must first explore the reasonable and effective urban space ventilation determination method, including the prediction of the wi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F111/10
Inventor 尤伟张昊丁沃沃
Owner NANJING UNIV