Optimized design and energy consumption simulation of window-wall ratio in Yanqui Library, Jimei University

Abstract

The size of the window-to-wall ratio is a key factor affecting the natural lighting, ventilation and energy consumption of a building. Taking the Yanqui Library of Jimei University as the object and combined with different shading conditions, the range of window-wall ratios that simultaneously meet the requirements of natural lighting and energy saving is derived by using Revit, Ecotect and PKPM software simulations around lighting, energy consumption and natural ventilation. The main conclusions are as follows:(1) With the use of external shading, 0.53 is the maximum window-to-wall ratio for west-facing rooms to meet lighting and energy-saving requirements. (2) The window ratio in the west room is not greater than 0.38, and the north-south room is not greater than 0.55, and the average indoor wind speed in the transitional season is not greater than 0.5m/s.