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Reverse identification method for release intensities of multiple indoor pollution sources of building

An identification method and technology for pollution sources, which are applied in the field of reverse identification of the release intensity of multiple pollution sources in buildings, can solve problems such as difficulty in quickly capturing pollution sources, and achieve the effects of improving air quality, improving instability, and maintaining air quality.

Pending Publication Date: 2020-09-11
GUILIN UNIV OF ELECTRONIC TECH
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Problems solved by technology

[0005] Aiming at the above technical problems, the present invention provides a reverse identification method for the release intensity of multiple pollution sources in a building to solve the technical problem that the traditional reverse identification method is difficult to quickly capture pollution sources, so as to better identify and control pollution sources

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  • Reverse identification method for release intensities of multiple indoor pollution sources of building
  • Reverse identification method for release intensities of multiple indoor pollution sources of building
  • Reverse identification method for release intensities of multiple indoor pollution sources of building

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Embodiment Construction

[0026] A specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment. It should be understood that the "up", "down", "left" and "right" directions mentioned in the following embodiments of the present invention are all based on the positions in the corresponding drawings. These words used to limit the direction are only for convenience of description, and do not mean to limit the specific technical solution of the present invention. Unless otherwise specified, the same reference numerals represent the same structure.

[0027] The invention discloses a method for reverse identification of the release intensity of multiple pollution sources in a building, which mainly includes using CFD numerical simulation technology to obtain the stable heat flow field released by multiple pollution sources in...

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Abstract

The invention discloses a reverse identification method for release intensities of multiple indoor pollution sources of a building. The method comprises the following steps of 1, adopting a CFD numerical simulation technology for indoor environment parameters of the building to obtain a stable thermal flow field, 2, obtaining a transmission matrix A between the indoor concentrations released by the plurality of pollution sources and the concentrations of the monitoring points based on a pollution source contribution rate (CRPS) method, and establishing an inverse model by utilizing the transmission matrix A, 3, enhancing the solving stability of the inverse model by adopting a Tikhonov regularization method, and 4, selecting a regularization matrix L, calculating a regularization parameterlambda, and solving the concentration of the pollution source based on the concentration of the monitoring point. According to the method for identifying the release intensity of the pollution source, the unicity and the complexity of a traditional identification method are solved, and a new scheme is provided for rapidly and effectively identifying the release intensities of multiple indoor pollution sources of the building.

Description

technical field [0001] The invention relates to the technical field of indoor air quality identification in buildings, and in particular to a reverse identification method for the release intensity of multiple pollution sources in a building room. Background technique [0002] According to research, human beings spend most of their life indoors, so people's health is closely related to the indoor air quality (Indoor Air Quality, IAQ). As one of the main indoor air pollutants, gaseous pollutants are colorless, odorless and have no actual shape, and often cause great harm to human health. Common gaseous pollutants such as CO, CO2, nitrogen compounds, and volatile organic compounds of building materials can enter the blood through the respiratory system and reach various parts of the body, threatening the respiratory system, heart, and tissues and organs. Existing detection and alarming of indoor pollutant concentration all work after the pollutants have been released, and the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G06F30/28
CPCG01N33/0062G06F30/28
Inventor 雷蕾林鑫郑皓吴冰陈威王宁夏源利陈超
Owner GUILIN UNIV OF ELECTRONIC TECH
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