About: Long-term prediction of dynamic distribution of passive contaminant in complex recirculating ventilation system

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About: Long-term prediction of dynamic distribution of passive contaminant in complex recirculating ventilation system Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : wasabi.inria.fr associated with source document(s)

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type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
title	Long-term prediction of dynamic distribution of passive contaminant in complex recirculating ventilation system
Creator	Li, Xianting Ma, Xiaojun Shao, Xiaoliang Zhu, Fenfei
source	Elsevier; Medline; PMC
abstract	Recirculating ventilation systems may act as carriers of hazardous substances. The long-term prediction of the dynamic distribution of contaminants in this type of system is crucial for the evaluation of pollution and further design of more efficient ventilation systems. However, few convenient methods can predict the dynamic distribution of contaminants, because the dynamic supply air concentrations resulting from air recirculation are unknown, especially over long time periods, such as months or years. In this study, a novel method is proposed to predict the dynamic distribution of contaminants over a long time period in a complex recirculating ventilation system, where an algebraic expression based on the indices of the response coefficient is applied to account for the relationship between the contaminant distribution inside the room and various boundary conditions. The method is established by obtaining comprehensive mathematical descriptions of the relationships between concentrations of contaminants in the air handling units, supply air inlets, return air outlets, and fresh air. Hourly supply air concentrations can be easily obtained by solving a matrix, and the dynamic distribution of contaminants is then calculated using an expression based on the response coefficient. The reliability of the proposed method is analyzed by both experimental and numerical methods. A simplified method is suggested to accelerate the time-consuming calculation of the response coefficient. The proposed method is beneficial for predicting three-dimensional dynamic distribution of contaminants in complex ventilation systems with an acceptable accuracy and time cost.
has issue date	2017-08-15(xsd:dateTime)
bibo:doi	10.1016/j.buildenv.2017.05.012
bibo:pmid	32287971
has license	no-cc
sha1sum (hex)	8ab69b882a0b9221b83b200195c78ee2dbebfe29
schema:url	https://doi.org/10.1016/j.buildenv.2017.05.012
resource representing a document's title	Long-term prediction of dynamic distribution of passive contaminant in complex recirculating ventilation system
has PubMed Central identifier	PMC7126526
has PubMed identifier	32287971
schema:publication	Build Environ
resource representing a document's body	covid:8ab69b882a0b9221b83b200195c78ee2dbebfe29#body_text
is schema:about of	named entity 'numerical methods' named entity 'boundary conditions' named entity 'ventilation systems' named entity 'Long-term prediction' named entity 'contaminant' named entity 'air ducts' named entity 'SARS' named entity 'AHU' named entity 'contaminant' named entity 'CFD' named entity 'contaminant' named entity 'contaminant' named entity 'contaminant' named entity 'steady flow' named entity 'fresh air' named entity 'save energy' named entity 'long-term' named entity 'contaminant' named entity 'Section 3.1' named entity 'fan coil unit' named entity 'GAHU' named entity 'air ducts' named entity 'air ducts' named entity 'contaminant' named entity 'numerical method' named entity 'contaminant' named entity 'FCU' named entity 'CFD' named entity 'heat source' named entity 'steady flow' named entity 'sinusoidal function' named entity 'ventilation systems' named entity 'air quality' named entity 'ventilation systems' named entity 'boundary conditions' named entity 'pollution' named entity 'air flow' named entity '1, 2' named entity 'contaminant' named entity 'uniform distribution' named entity 'contaminant' named entity 'air handling unit' named entity 'steady flow' named entity 'GAHU' named entity 'long time' named entity 'fresh air' named entity 'air ventilation' named entity 'velocity' named entity 'mass balance' named entity 'contaminant' named entity 'initial condition' named entity 'contaminant' named entity 'contaminant' named entity 'human beings' named entity 'RAC' named entity 'pollutant' named entity 'ductwork' named entity 'contaminant' named entity 'contaminant' named entity 'boundary conditions' named entity 'air conditioning' named entity 'biological agents' named entity 'steady flow' named entity 'fresh air' named entity 'contaminant' named entity 'hazardous substances' named entity 'air ducts' named entity 'Severe Acute Respiratory Syndrome' named entity 'ventilation systems' named entity 'anemometer' named entity 'air ducts' named entity 'contaminant' named entity 'fresh air' named entity 'contaminant' named entity 'Ventilation systems' named entity 'ppm' named entity 'ventilation systems' named entity 'CFD'

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