TABLE OF CONTENTS - The Professional Green Building Council

Theme C: Education and Market TransformationEVALUATION AND APPLICATION OF NATURALVENTILATION CONCEPTS IN EDUCATIONAL BUILDINGSLUCIANO CARUGGI DE FARIA 1 ; LU SUN 2 ;PHIL JONES 3 ; YAN WANG 41PhD Researcher/ WSA, Cardiff University, Wales, UK2PhD Researcher and Research Assistant/ WSA, Cardiff University, Wales, UK3Head of the School and Director of CRiBE / WSA, Cardiff University, Wales, UK4Research Associate/ WSA, Cardiff University, Wales, UKABSTRACT: The Welsh School of Architecture (WSA) and the Tianjin University collaborate witha programme whose purpose is to encourage expertise interchange between universities and topromote the application of sustainable concepts in real design projects, creating a link betweenacademics and professionals. Based on theses principles, this paper describes one initiative toapproach sustainable issues through the use of passive technologies in a new building compound tobe constructed for the Shandong Art College. This study refers to the potential of using naturalventilation to improve naturally user’s thermal comfort and safety levels on both external andinternal environments, according to different requirements throughout the year. In order to reachthese goals, CFD simulations evaluated wind flow factors and effects, ruled by the interactionbetween both the built volume and the topography with the surrounding microclimate. It aimed atidentifying both the resulting wind speed and differences of pressure along the building’s façades forthe prevailing wind direction. The capacity for natural air changes and temperature reduction in theinternal environment were considered for both healthy and cooling purposes during summer seasons,and included the use of ground cooling systems. The software’s used to perform the simulations anddisplay the results are, respectively, the WinAir-v1.4b, the HTB2 and the ECOTECT v5.5.Eventually, it highlighted several possibilities to ameliorate effectively the thermal performance ofthis built environment, reflecting in energy consumption reduction without alter the proposedarchitectonic design. All over the use of these buildings, it is ought to make the students consciousabout such features and the benefits it shall bring. In this way, the contribution to the development ofa sustainable society may possibly occur in both short and long terms.Keywords: Sustainable architecture, CFD, Natural Ventilation, Ground Cooling and HeatingSystems.1. INTRODUCTIONChina is currently going through a period of continued rapid economicdevelopment. It has become the world’s biggest construction site. While itcontributes to 15 percent of the world's GDP, China consumes 30 percent of theEarth's steel and half of its concrete. Within China, the construction sectorconsumes 30 percent of the total energy and results in 35 percent of the totalpollution [1].621