Research on Ventilation and Airflow Distribution of Building Systems

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: 30 January 2025 | Viewed by 688

Special Issue Editors


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Guest Editor
School of Building Services Science and Engineering, Xi 'an University of Architecture and Technology, Xi’an 710005, China
Interests: built environment; zero carbon and sustainability; indoor air quality; energy efficiency; industrial ventilation
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Guest Editor
School of Civil Engineering, Chang’an University, Xi'an 710061, China
Interests: built environment; zero carbon and sustainability; urban climate; building ventilation; renewable energy technology

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Guest Editor
Energy School, Xi'an University of Science and Technology, Xi'an 710055, China
Interests: built environment; aerosol particle; droplet phase change; air quality; ventilation strategies

Special Issue Information

Dear Colleagues,

Ventilation and airflow distribution are key factors involved in ensuring indoor air quality and energy efficiency in buildings. This Special Issue will collect and showcase the latest research findings in this field, especially in applications in large public buildings, industrial buildings, and special clean building environments. We pay special attention to the design of energy-efficient ventilation systems, the simulation and optimization of airflow dynamics, the monitoring and management of indoor air quality, and integration with smart building technologies.

The scope of the work includes, but is not limited to, the following:

- Ventilation system design and pollutant control strategies for industrial buildings;

- Ventilation system analysis and optimization for large-space public buildings;

- Airflow distribution and pollution control techniques for clean buildings;

- Thermal management and airflow distribution in data centers;

- Energy-efficiency analysis and energy-saving technologies for ventilation systems;

- Application of intelligent control in the management of ventilation systems;

- Ventilation strategies and sustainable design practices for green buildings;

- Research on ventilation safety and health impacts in special environments.

We sincerely invite scholars, researchers, and professionals from around the world to submit their high-quality research papers in these fields, thus jointly promoting the development of ventilation technology and the improvement of indoor air quality.

Prof. Dr. Zhixiang Cao
Dr. Zijing Tan
Dr. Jia-Ning Fan
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 semimonthly 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

  • built environment
  • building ventilation
  • zero carbon and sustainability
  • indoor air quality
  • energy efficiency
  • ventilation strategies
  • airflow distribution techniques

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Published Papers (1 paper)

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Research

33 pages, 13995 KiB  
Article
Ventilation Optimization Based on Spatial-Temporal Distribution and Removal Efficiency of Patient-Exhaled Pollutants in Hospital Wards During the Post-Epidemic Period
by Min Chen and Qingyu Wang
Buildings 2024, 14(12), 3827; https://doi.org/10.3390/buildings14123827 - 28 Nov 2024
Viewed by 444
Abstract
Given the potential risks of unknown and emerging infectious respiratory diseases, prioritizing an appropriate ventilation strategy is crucial for controlling aerosol droplet dispersion and mitigating cross-infection in hospital wards during post-epidemic periods. This study optimizes the layout of supply diffusers and exhaust outlets [...] Read more.
Given the potential risks of unknown and emerging infectious respiratory diseases, prioritizing an appropriate ventilation strategy is crucial for controlling aerosol droplet dispersion and mitigating cross-infection in hospital wards during post-epidemic periods. This study optimizes the layout of supply diffusers and exhaust outlets in a typical two-bed ward, employing a downward-supply and bottom-exhaust airflow pattern. Beyond ventilation, implementing strict infection control protocols is crucial, including regular disinfection of high-touch surfaces. CO2 serves as a surrogate for exhaled gaseous pollutants, and a species transport model is utilized to investigate the airflow field under various configurations of vents. Comparisons of CO2 concentrations at the respiratory planes of patients, accompanying staff (AS), and healthcare workers (HCWs) across nine cases are reported. A discrete phase model (DPM) is employed to simulate the spatial-temporal dispersion characteristics of four different particle sizes (3 μm, 12 μm, 20 μm, and 45 μm) exhaled by the infected patient (Patient 1) over 300 s. Ventilation effectiveness is evaluated using indicators like contaminant removal efficiency (CRE), suspension rate (SR), deposition rate (DER), and removal rate (RR) of aerosol droplets. The results indicate that Case 9 exhibits the highest CRE across all respiratory planes, indicating the most effective removal of gaseous pollutants. Case 2 shows the highest RR at 50.3%, followed by Case 1 with 40.4%. However, in Case 2, a significant portion of aerosol droplets diffuse towards Patient 2, potentially increasing the cross-infection risk. Balancing patient safety with pollutant removal efficacy, Case 1 performs best in the removal of aerosol droplets. The findings offer novel insights for the practical implementation of ventilation strategies in hospital wards, ensuring personnel health and safety during the post-epidemic period. Full article
(This article belongs to the Special Issue Research on Ventilation and Airflow Distribution of Building Systems)
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