THERMAL SCIENCE

International Scientific Journal

Yi Xu

,

Xin Zhang

,

Yun Gao

,

Tao Yu

,

Fei Ren

,

Puchun He

,

Mengyue Li

DEPOSITION RATE AND PURIFICATION EFFECT OF ATMOSPHERIC PARTICLE BY DIFFERENT PIPELINE CONNECTION FORMS

ABSTRACT
The connection form of pipelines has an important impact on the comprehensive performance evaluation of fresh air systems. The most used PVC fresh air pipeline material in the market was selected for experimental research in this paper, and the deposition rates of particles of different pipeline connection form of 45°, 90° bend, and straight tee were all tested and compared. The purification effect of the pipeline connection form of the highest deposition rate is tested and studied. The results showed that the particle deposition rates were the highest in the connection form of straight tee, with deposition rates of 47.61%, 18.06%, and 8.13% for PM10, PM2.5, and PM1.0, respectively. As the particle size increases, the deposition rate of particles also gradually increases. The larger the inlet velocity, the greater the deposition rate. The particle concentration on the outlet of the pipeline in the connection forms of straight tee was significantly decreased after adding the purification equipment, and the deposition rates of PM10, PM2.5, and PM1.0 decreased by 45.01%, 68.89%, and 77.48%. Therefore, the use of pipeline elbows should be reduced, and purification equipment should be installed in the process of using, which will reduce the deposition of particles in the fresh air systems.
KEYWORDS
Pipeline structure, PVC, particles, deposition rate, Purification effect
PAPER SUBMITTED: 2023-04-13
PAPER REVISED: 2023-07-02
PAPER ACCEPTED: 2023-07-17
PUBLISHED ONLINE: 2023-09-02
DOI REFERENCE: https://doi.org/10.2298/TSCI230403180X
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2024, VOLUME 28, ISSUE Issue 2, PAGES [961 - 970]
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Deposition rate and purification effect of atmospheric particle by different pipeline connection forms

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence