Optimization of Window-to-Wall Ratio in a Transfer Hall of an Urban Integrated Transportation Hub

The window-to-wall ratio directly affects the energy consumption of the transport hub’s cooling, heating and lighting systems in a transfer hall. In this chapter, adopting the dynamic simulation method, a transfer hall of an urban integrated transport hub in Beijing was taken as the research object. To ensure that the standard illumination of the room was 150 lx, the sensitivity analysis of the comparison of windows and walls facing each direction to the total annual energy consumption of the three items was conducted. Thus, to minimize the total yearly energy consumption of the transfer hall’s cooling, heating and lighting systems (referred to as the three annual total energy consumption). Through analysis and calculation, the optimal window wall ratio of the transfer hall was 0.28. For every 0.04 increase in the window-to-wall ratio, the annual total energy consumption of the three items per unit building area increased by 0.36–1.55 kWh. The transfer hall’s most appropriate window opening direction was in the East, and the West window opening was minimized. This study aimed to reduce the carbon emissions of transport hub buildings from the perspective of passive energy conservation.