Optimal investigation of daylighting and energy efficiency in industrial building using energy-efficient velux daylighting simulation

ABSTRACT Daylighting is one of the sustainable methods of controlling the flow of natural light into the interior surfaces of the building. Over past years of research daylighting are analyzed through simulation tools due to consistent and precise predictions. The aim of the research is to evaluate the daylight availability in an industrial building under a fixed level of orientation and design. The research initiates by field measurements on the building by an illuminance meter. For the comparative effectiveness, a simulation method is incorporated in the research for a comparative and optimized validation of the daylighting factor. Velux Daylight Visualizer is utilized in this research to simulate the daylighting by modelling the building surface 3 dimensionally with optimal window and glazing material and rendered it to actual interior surface to measure the daylighting at hourly working time zones. Sequentially, the energy utilization of the building is also measured using Velux EIC Visualizer, where the temperature comfort and the total energy utilized for lighting and ventilation is also measured. Hence by improving the design of building to efficient daylighting and ventilation, the annual energy cost investing in artificial lighting and ventilation for industrial operation in a certain period can be restricted respectively