Energy-Saving Design Strategy Of University Library Forms In Severe Cold Region Under The Guidance Of Learning Performance

The indoor temperature environment of college buildings has a significant effect on the learning performance of students.The optimum temperature for learning performance is not necessarily the thermal neutral temperature,and is not always within the thermal comfort zone.For university library buildings in severe cold region,high learning performance is the the first priority.Adjusting indoor temperature to improve learning performance is likely to bring about a substantial increase in energy consumption.On the premise of ensuring high learning performance,the energy consumption cost brought by indoor temperature control can be alleviated through building form design.Therefore,the two performance indexes,learning performance and building energy consumption,with certain contradictions can be improved simultaneously.The study is of great significance to the energy-saving design of university libraries in severe cold region.Firstly,the study analyzed the evaluation of learning performance and the energy consumption characteristics of university libraries in severe cold region,proposed that the factor with the most potentiality for improvement and energy saving was the indoor temperature,and expounded the interaction among building forms,learning perfomance and building energy consumption.Secondly,based on the interdisciplinary knowledge system,the experiment of the learning performance evaluation of university library students in severe cold region was carried out,combined with the neurobehavioral approach and subjective survey evaluation methods.The optimum indoor temperature range of university libraries in severe cold region was obtained,which could simultaneously meet the objectives of high learning performance,thermal comfort,health and positive emotion for students.At the same time,a field survey was conducted on university libraries in severe cold region,and the typical characteristics of the building were extracted.Through the data collection and statistical analysis of the value ranges and peak values of impact parameters of energy consumption,the typical parameter group was determined,and the typical building model was established.Finally,under the premise of hign learning performance,the Honeybee and Ladybug tools were used to study the influence of the building orientation,building size and window-wall ratio,three building form parameters,on annual energy consumption per unit area of the typical building model.Based on the simulation results,the study revealed the quantitative relationships between building form parameters and energy consumption,and put forward the energy-saving design strategies of university library forms in severe cold region under the guidance of learning performance.The introduction of interdisciplinary knowledge system is of great benefit to the innovation and development of architectural design ideas.The results of the optimal temperature range of university libraries in severe cold region can be used to guide the design of indoor temperature environment,and to provide reference for the future revision of design standards and technical codes.The complexity of the functions of university libraries in severe cold region leads to the particularity of the change laws of energy consumption with some form parameters to a certain degree.The form energy-saving design strategies proposed in the study can weigh the learning performance and building energy consumption,laying a foundation for the introduction of the learning perfomance evaluation system into the field of building energy-saving design and its further development.