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Indoor Air Environment for Large-Scale Public Buildings
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Indoor Air Environment for Large-Scale Public Buildings

A special issue of Buildings (ISSN 2075-5309). This special issue belongs to the section "Building Energy, Physics, Environment, and Systems".

Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 3432

Special Issue Editors

Prof. Dr. Ran Gao

E-Mail Website
Guest Editor
School of Building Services Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
Interests: air conditioning ducts; ventilation; HVAC transmission systems/solutions; indoor climate/indoor air environment
Dr. Ying Zhang

E-Mail Website
Guest Editor
School of Building Services Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
Interests: air distribution; airborne contaminants; energy-efficient buildings
Dr. Changqing Yang

E-Mail Website
Guest Editor
School of Building Services Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
Interests: ventilation; air distribution; building energy conservation

Special Issue Information

Dear Colleagues,

Large-scale public buildings significantly consume energy and emit high levels of carbon dioxide into the atmosphere. Taking China as an example, large public buildings consume about 600 billion kWh of electricity every year, accounting for about one-tenth of the total electricity consumption, and emit about 8% of carbon dioxide emissions and produces substantial air pollution. In total, 40%~60% of the energy is used to build a healthy, comfortable, and safe air environment. For a long period of time, significant energy consumption, huge space occupation by facilities and so on are serious problems in large public buildings.

In order to solve the problems of a built environment in large-scale public buildings, researchers and scholars are mainly focusing on the resistance and consumption reduction of HVAC transmission systems, efficient air distribution modes, and air contaminants control. These topics are also the focus of this Special Issue. We hope that the publication of this Special Issue can lead to scientific and technological innovations in the field of built environments for large-scale public buildings and contribute to energy conservation and carbon dioxide emission reductions worldwide.

Prof. Dr. Ran Gao
Dr. Ying Zhang
Dr. Changqing Yang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Buildings is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • indoor air environment
  • large-scale public buildings
  • heating
  • ventilation
  • air-conditioning
  • HVAC transmission system
  • air distribution
  • air contaminants control

Published Papers (2 papers)

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Research

14 pages, 1344 KiB  
Article
Sources of Indoor Air Pollution in Schools in Kosovo
by Antigona Ukëhaxhaj, Naser Ramadani, Hanns Moshammer and Drita Zogaj
Buildings 2023, 13(3), 668; https://doi.org/10.3390/buildings13030668 - 2 Mar 2023
Viewed by 1585
Abstract
There is increasing scientific evidence of the adverse health effects of indoor exposure to a collective mixture of chemicals in children. People spend 80–90% of their time indoors, breathing air that is often even more polluted than the air outside. This study presents [...] Read more.
There is increasing scientific evidence of the adverse health effects of indoor exposure to a collective mixture of chemicals in children. People spend 80–90% of their time indoors, breathing air that is often even more polluted than the air outside. This study presents results of school inspection and sampling of selected chemical pollutants—formaldehyde, benzene, and nitrogen dioxide—in classrooms and outdoors in ten schools in Kosovo, conducted by the National Institute of Public Health and the WHO. Nitrogen dioxide and benzene were most affected by outdoor concentrations and were too high in at least one school (NO2: >80 µg/m3, benzene: 1–2 µg/m3). Formaldehyde was significantly higher indoors than outdoors and higher in newer schools than older ones, but overall levels were not alarming (maximum around 20 µg/m3). CO2 levels during class indicated insufficient ventilation. The temperatures were occasionally too high during the cold season. This not only results in unnecessary energy wastage but also too low relative humidity. Improvements in air circulation and temperature control, as well as the identification and elimination of certain sources of pollution would improve the health and learning of school children. Full article
(This article belongs to the Special Issue Indoor Air Environment for Large-Scale Public Buildings)
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13 pages, 7350 KiB  
Article
Effects of Train-Induced Unsteady Airflow on Air Quality and Air Distribution in a Subway Station
by Hu Li, Hong Han, Xinjin Liu, Shujing Chen, Jingqian Wang and Wenjun Lei
Buildings 2022, 12(12), 2114; https://doi.org/10.3390/buildings12122114 - 1 Dec 2022
Cited by 1 | Viewed by 1160
Abstract
Using train-induced unsteady airflow in transitional seasons can greatly reduce the energy consumption of a subway station’s mechanical ventilation. However, the unsteady airflow carries the particles from tunnels into subway platforms, and airflow distribution at controllable vents is uneven. To determine the variation [...] Read more.
Using train-induced unsteady airflow in transitional seasons can greatly reduce the energy consumption of a subway station’s mechanical ventilation. However, the unsteady airflow carries the particles from tunnels into subway platforms, and airflow distribution at controllable vents is uneven. To determine the variation in PM2.5 (particulate matter of 2.5 micrograms or less) concentration and the air velocity distribution at the vents, field tests were conducted. The results showed that the PM2.5 concentrations at the vents and platform were positively correlated with the air velocity. The average ratio of the PM2.5 concentration at the vents to that on the platform was 71.15%. The maximum PM2.5 concentration and average PM2.5 concentration on the platform were 0.067 mg/m3 and 0.037 mg/m3, respectively. The air velocity distribution along the length of the platform conformed to logistic regression. Adjustment of the opening height of the vents was proposed to improve the air velocity distribution. Through numerical simulation, the ratio of the minimum airflow rate to the maximum airflow rate was increased from 5.9% to 37.5% after adjustment. This method is helpful for the uniform distribution of the airflow rate. This study will provide references for the design and operation of the vents of subway stations. Full article
(This article belongs to the Special Issue Indoor Air Environment for Large-Scale Public Buildings)
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