In recent years, haze pollution of China has become increasingly serious. Outdoor particles can enter the room through the building crack. Therefore, it is of great significance to study the indoor and outdoor penetrating and transport characteristics of fine particles. In this paper, the main factors affecting the penetration coefficient are quantitatively analyzed by combining theoretical and experimental research. The results indicate that there is no obvious function between the pressure difference and the penetration coefficient when the crack height 1 mm, but they can be unified with a linear function when the crack height 0.25 mm. The effect of the crack height and length on penetration coefficient is related to the maximum net displacement of particles. The smaller the crack height (H), the longer the crack length (L) and the smaller the pressure difference (ΔP) would cause the greater the decrease of the penetration coefficient as the particle size increases. Temperature and relative humidity have no significant correlation with the penetration coefficient. The semi-empirical formula of penetration coefficient is established based on the correlation analysis and the theory of penetrating coefficient, which has the advantages of high accuracy, simple form and easy to measurement.
Building and Environment – Elsevier
Published: Mar 15, 2018
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera