The Optimization of Residential Block Morphology in Cold Regions Based on the Solar Radiation Utilization Ratio

With the rapid process of urbanization, how to effectively utilize renewable energy in residential buildings has increasingly become the center interest of researchers. Reasonable estimate about solar radiation absorbing ability of building facades is the foundation to improve current daylight utilization patterns during the heating season. Therefore, on the base of cold regions annual solar distribution, this paper combines clear sky model and ray tracing algorithm to estimate the received solar energy distribution of the building facades; explore the diverse influence caused by the different heights and forms of building; and then refine the configuration planning of districts according to these factors, figure out better residential block morphology. Our case study focus on a real housing estate located in Harbin; the result shows that this method performs well and results in significantly increasing of annual radiation for solar radiation utilization.