Research On Thermal Comfort Of Different Characteristic Spaces Of Comprehensive Teaching Buildings In Severe Cold Zone C

People spend most of their life and production activities indoors.The internal thermal environment of the building directly affects the health,work efficiency and comfort of indoor personnel.Researches on public buildings such as tall space structure types,enclosed space structure types,and semi-open space structure types have found that there are significant differences in thermal comfort in different characteristic space areas.With the diversified development of building functions,the thermal environment of each internal space area has become more complex,especially for the research on the indoor thermal environment of comprehensive teaching buildings that affects the efficiency of teachers and students’ work and students’ learning.This subject takes a comprehensive teaching building(hereinafter referred to as the building hall)reconstructed from a disused industrial factory building in a university in Hohhot as the research object.The method combines the on-site thermal environment measurement and subjective questionnaire survey to obtain the thermal environment parameters and Voting on the heat and humidity experience of indoor personnel;based on data statistics,calculations,and regression analysis,TSV model and PMV model are established,and the differences in human thermal comfort in each space area are analyzed,and the results are suitable for comprehensive teaching buildings in the region.Human thermal comfort evaluation model;finally,orthogonal experiments are carried out for the factors that affect human thermal comfort in each space area,and the significance of each influencing factor is obtained.The results of the research have a certain reference effect on the thermal comfort analysis of comprehensive teaching buildings in severe cold C areas.The main conclusions are as follows:(1)The thermal environment parameter test of each space area inside the building shows that during the test period,the average indoor temperature,relative humidity,and air flow velocity in each space area meet the requirements of thermal comfort level II,but semi-open space in winter The average value of relative humidity in the area does not meet the requirements and is lower than the required value of relative humidity for thermal comfort level II.(2)A questionnaire survey of people in each space area found that the southern subjects were more sensitive to the description of indoor humidity,while the northern subjects were affected by weather resistance and showed adaptability to the environment.(3)The thermal neutral temperature obtained from the TSV model represents the ability of indoor personnel to withstand heat.The actual thermal neutral temperature of each space area from high to low is: closed space area> tall space area> semi-open space area.That is,the people in the closed space area have the strongest ability to withstand heat,and the people in the semi-open space area have the weakest ability to withstand heat.(4)The size of the slope of the TSV fitting curve indicates the ability of indoor personnel to adapt to temperature changes.The slope of the fitting curve of each space area is in the order of: semi-open space area>high space area>closed space area,that is,The indoor personnel in the semi-open space area have the strongest adaptability to temperature changes,and the indoor personnel in the closed space area have the weakest adaptability to temperature changes.(5)In order to further explore the reasons for the different thermal neutral temperature and comfort temperature range in different characteristic space areas,the orthogonal test is carried out on the environmental factors and human factors that affect the thermal comfort of the human body: transition season,tall space and semi-open space area The thermal comfort of the human body is significantly affected by the thermal resistance of the clothing;the thermal comfort of the human body in the enclosed space area is significantly affected by the air temperature.In winter,the thermal comfort of the human body in large spaces is significantly affected by the air temperature;the thermal comfort of the human body in the enclosed space is significantly affected by the thermal resistance of the clothing;the thermal comfort of the human body in the semi-open space is significantly affected by the relative humidity.