Title: Prediction method of pollutant release rate of building materials based on characteristic constraints

Authors: Hongwei Jia

Addresses: Department of Civil and Architecture Engineering, Jiaozuo University, Jiaozuo, 454000, China

Abstract: In order to solve the problems of low prediction accuracy and long prediction time in traditional prediction of pollutant release rate of building materials, a new prediction method of pollutant release rate of building materials based on feature constraint was proposed. The air flow velocity, air age, release efficiency and accessibility of pollutants are determined. The constant and dynamic release rates of pollutants are calculated, and the release characteristic state is determined by the mass conservation formula. On this basis, the release characteristics are constrained, and the release characteristic gradient value is determined by the loss function to complete the prediction model of building material pollutant release rate. The experimental results show that the prediction accuracy of the proposed method is about 98%, and the prediction time is less than 2 s.

Keywords: building materials; contaminants; release rate; characteristic constraints; air age; influencing parameters.

DOI: 10.1504/IJETM.2022.124437

International Journal of Environmental Technology and Management, 2022 Vol.25 No.4, pp.249 - 259

Received: 02 Jun 2021
Accepted: 21 Sep 2021
Published online: 26 Jul 2022 *

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