Study On Energy-saving Design Of Window Facing And Window-wall Ratio For Five-star Business Hotel Rooms

With the integration of Beijing,Tianjin and Hebei and the joint hosting of the Winter Olympics by Beijing and Zhangjiakou in 2022,the city and economy in Zhangjiakou are bound to witness significant growth.And Zhangjiakou good natural environment will inevitably lead to the rapid development of local tourism and business activities.These factors provide a good foundation and opportunity for the development of five-star business hotel in the area.The hotel building compared to other public buildings,its energy consumption is relatively large.The hotel guest room level is the longest available hotel space for guests and one of the most important aspects of the hotel’s building function.The outer part of the window layer of the building is another part of the larger impact on building energy consumption.Therefore,based on the above reasons,the author puts forward the energy saving design research of the window orientation and the window-wall ratio of the five-star business hotel guest rooms.The first part reviews the related concepts and energy consumption factors of the five-star business hotel rooms,and briefly analyzes the heat transfer process to the external windows.According to the relevant research documents of the five-star business hotel rooms and the field survey of five-star business hotels in Zhangjiakou,the relevant simulation parameters for the calculation and analysis of the energy consumption of the five-star commercial hotel rooms are provided.The second part analyzes the climatic conditions of each city in Zhangjiakou area,and makes a detailed division of the architectural climatic division of Zhangjiakou according to the “Code for the Design of Thermal Design for Civil Buildings”(GB50176-2016).Three representative counties and cities are selected as the points for further study in the three climate zones,and the meteorological data model is selected in order to assist in the subsequent simulation and analysis.The third part analyzes the cumulative heat load of buildings throughout the year according to the different orientations of the three climatic zonings in Zhangjiakou,and accumulates the annual cooling load.The power consumption of natural light lighting,the accumulated humidification of the whole year and the comprehensive energy consumption are taken into account throughout the year.Finally come to Zhangjiakou three climate areas affect the five-star business hotel room energy consumption of the best direction and the appropriate direction of the range.The fourth part firstly analyzes the accumulated heat load of buildings in different window walls of the three climatic zones in Zhangjiakou in the whole year,and accumulates the annual cooling load.In the whole year,the power consumption of natural daylighting lighting,the accumulated humidification of the whole year and the accumulative total energy of the whole year The impact of consumption.Draw Zhangjiakou three climate zones five-star business hotel rooms outside the window layer than the change of the relationship between changes in energy consumption.Secondly,the calculation model is set according to the relevant thermal parameters in "Design Standard for Energy Efficiency of Public Buildings"(GB50189-2015),and the cumulative heat load of windows and walls compared with the total annual cumulative cooling load of the building is calculated again.The annual cumulative cooling load is considered Natural lighting lighting power consumption,the cumulative amount of annual humidification and comprehensive energy consumption of the cumulative impact of the year.Finally come to the standard,how to choose a reasonable windowwall ratio is more effective energy-saving options.