Numerical Simulation and Optimization of a Large-depth Rural Residential House Daylighting

Abstract

In this paper, IES VIRTUAL ENVIRONMENT is used to simulate, analyze and optimize the lighting of a large rural house in Tianjin with enclosed lighting atrium. Using numerical simulation, the daylighting coefficients of the house before and after the adoption of daylighting atrium are compared and analyzed. The results show that the use of daylighting atrium can effectively improve the lighting effect of the main rooms in the central and north of the house, and the values of the daylighting coefficients of the main room is about 70% higher than that without using daylighting atrium. Meanwhile, in light of characteristics of the house, the lighting design of the lighting atrium and the main lighting room in the north is carried out and the numerical simulation is analyzed. The result show that the lighting atrium with a flat roof window has better lighting effect without changing the area of the daylight opening: the values of the lighting coefficients of the main room in the central and north is increased by about 30%.