| Issue |
MATEC Web Conf.
Volume 251, 2018
VI International Scientific Conference “Integration, Partnership and Innovation in Construction Science and Education” (IPICSE-2018)
|
|
|---|---|---|
| Article Number | 03039 | |
| Number of page(s) | 5 | |
| Section | Engineering and Smart Systems in Construction | |
| DOI | https://doi.org/10.1051/matecconf/201825103039 | |
| Published online | 14 December 2018 | |
On the mutual influence of local resistances in the distribution of ventilation air
Moscow State University of Civil Engineering, Yaroslavskoe shosse, 26, Moscow, 129337, Russia
* Corresponding author: leontiii@mail.ru
The article deals with various methods of reducing the interference of local resistances in ventilation networks, as well as the question of the uniformity of air distribution on the branches. A critical assessment of the method of coarsening calculations used in practice is given, which is expressed in the fact that the reference coefficients of local resistances are simply summed up without taking into account the influence of local resistances on each other. It is proposed to use rectifying devices as a method of reducing the interaction of local resistances. The method of determining the length of the honeycomb jet rectifier necessary for the alignment of the velocity field of the flow is given. The use of flow dividers for the uniform distribution of the air flow through the branches is also considered, the system with flow separators is calculated and its pressure losses are compared with a similar system without flow separators.
© The Authors, published by EDP Sciences, 2018
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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