Open AccessFiltering of outside air in HVAC inlet plenums in urban environment
Author(s) -
N. A. Litvinova
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/687/6/066025
Subject(s) - sorbent , inlet , materials science , zeolite , silica gel , adsorption , carbon dioxide , manganese , duct (anatomy) , filter (signal processing) , activated carbon , hvac , chemical engineering , waste management , composite material , chemistry , air conditioning , organic chemistry , metallurgy , mechanical engineering , catalysis , engineering , medicine , electrical engineering , pathology
An experimental inlet air strainer was presented, fitted into an outer wall of a building to filter outside air using various sorbents and chemical adsorbents. The experimental strainer was composed of the following components: an air duct, 100 mm in diameter and 400 mm long; axial fan 100 m 3 / h; replaceable filters, thickness of each filtering layer was 20 mm to enable replacement of sorbents and chemical adsorbent. Total 6 inlet air filtering options have been researched: 1 – filter element (activated carbon), 2 - schungite, 3 - zeolite, 4 -manganese dioxide chemisorbent with silica gel sorbent, 5 - four filters in the following order: shungite + silica gel + manganese dioxide + zeolite, 6 - activated carbon + silica gel + manganese dioxide + zeolite. Research results showed that shungite + silica gel + manganese dioxide + zeolite are the best options to filter outside air from carbon monoxide (II); its filtering efficiency was 95.35%. Hence, the studies showed that the most effective would be to use several outside air filtering stages in urban buildings.