A study of patient-centered, energy-efficient lighting design for hospital wards

Abstract

As one of the most critical areas in a hospital building, the rationalization of the lighting environment is crucial for both patients and healthcare workers. This paper presents findings from field research and questionnaire interviews conducted in the Taiyuan ward, which reveal several issues with the current lighting setup, including low illuminance value, poor light uniformity, color temperature not meeting standard requirements, inappropriate selection and arrangement of light sources, and high proportion of lighting energy consumption. By analyzing factors influencing the humane and energy-saving aspects of the ward lighting environment, we explore a comparative simulation of the window-to-wall ratio and the form of shading inside the windows in the natural lighting system of the wards. Additionally, we consider the selection, placement, and control methods of lamps and lanterns for the artificial lighting system. Based on these findings, we propose a method for designing the light environment of hospital wards that accounts for both humane and energy-saving aspects, providing a technical means for optimizing the ward's lighting environment.