STUDY ON ADJUSTABLE EXTERNAL SHADING DESIGN OF RESIDENCE IN SHANGHAI

Abstract

Under the context of contemporary high-speed urbanization, resources and energy issues have drawn more public attention. Building energy consumption, as a relatively large part of China's energy consumption, can make a big difference in energy saving. The external shading facilities have obvious effects on cooling indoor temperature and energy saving in hot summer, but they are still not popularized among residential buildings, to which various reasons may attribute. Firstly, fixed external shading device will block sunshine in winter. Secondly, most related research outcomes are not interpreted into straightforward diagrams for the architects to use and still remain obscure for practical use. As consequences, the deductive function of shading research for practice is weak. Thirdly, the deficiency of popularization of the theoretical knowledge about the utilization of sunshades to the public also leads to the dilemma. Forth, the types of shading product can be selected in the market are limited, among which most are of poor architectural aesthetics and cannot be integrated into building façade easily. From the perspective of humanized research values, the energy saving efficiency and indoor thermal comfort are set as the evaluation criteria. Based on the conditions of Shanghai, a typical high-density city in the hot summer and cold winter region in China, literature research, field visits, questionnaires, field experiment combined with computation simulation are applied as research methods in this paper. The research mainly consists of three parts mainly: field experiment; orientation simulation and adjustment optimization simulation. Field experiment uses real example rooms to compare the real measured data with the simulated ones from software, in order to test the credibility of simulation platform. Ladybug Tools series, chosen as the main tools in this paper, therefore, will be tested in the first part. Based on this, orientation simulation and optimization simulation will be conducted by the Ladybug Tools. Then, the applicable of external shading forms for different orientations will be explored from both qualitative and quantitative perspectives in the second part. Eventually, the adjustment optimization strategies of the specific external shading forms are put forward in the third part. Through the research, the applicable map of external shading forms for different orientations and strategies for adjustable external shading forms will be obtained. Then, all the research conclusion obtained above will be employed to develop a series of new shading products. New technology and matured products will be introduced through the literature review and market research. Finally, one existing highdensity residence will be chosen within the inner ring of Shanghai as the example case to show how these component designs can literally ameliorate the living environment from various aspects.