Next Article in Journal
Small Wind Technology Diffusion in Suburban Areas of Sicily
Previous Article in Journal
Moving towards Sustainability: Road Grades and On-Road Emissions of Heavy-Duty Vehicles—A Case Study
Previous Article in Special Issue
Implementing Sustainability Criteria for Selecting a Roof Assembly Typology in Medium Span Buildings
Article Menu

Export Article

Open AccessArticle
Sustainability 2015, 7(9), 12672-12692;

Improvement of Air Quality and Thermal Environment in an Old City District by Constructing Wind Passages

1,* , 1
2,* and 3,*
School of Architecture and Urban Planning, Huazhong University of Science and Technology, Wuhan 430074, China
Department of Urban and Regional Planning, University of Hawaii at Manoa, Honolulu, HI 96822, USA
Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
Authors to whom correspondence should be addressed.
Academic Editor: Derek Clements-Croome
Received: 9 May 2015 / Revised: 14 August 2015 / Accepted: 7 September 2015 / Published: 15 September 2015
(This article belongs to the Special Issue Green Building)
Full-Text   |   PDF [6532 KB, uploaded 15 September 2015]   |  


A case study in an old city district with hot-humid climatic conditions in Wuhan, China was conducted to explore the potential renewal strategies favorable to the local residents and pedestrians. For this purpose, a comprehensive mathematical model considering the parameters such as ambient crosswind, solar radiation, natural convection, and a previously established heat transfer mechanism was employed to analyze the fluid flow and heat transfer characteristics of the study area. In addition, in the urban renewal process, five alternative renewal strategies, namely, Central Demolition (CD) Plan, Edge Demolition (ED) Plan, Wedge Shape Demolition (WSD) Plan, “L” Shape Demolition (LSD) Plan, and Cross Shape Demolition (CSD) Plan, were adopted to improve the thermal and ventilation environment of Wuhan old city district. Through simulation analysis, the temperature and velocity distributions of the original urban layout and five alternative renewal strategies were compared. It is found that the construction of an air passage within the old city district can improve the local air quality, air ventilation, and thermal environment to some extent. Among the five alternative strategies to construct air passages, CSD Plan is much better than the others. Accordingly, corresponding suggestions and strategies for urban renewal were presented. View Full-Text
Keywords: urban renewal; wind passage; air ventilation; thermal comfort urban renewal; wind passage; air ventilation; thermal comfort

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Peng, C.; Li, C.; Zou, Z.; Shen, S.; Sun, D. Improvement of Air Quality and Thermal Environment in an Old City District by Constructing Wind Passages. Sustainability 2015, 7, 12672-12692.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sustainability EISSN 2071-1050 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top