Evaluation And Research On The Indoor Thermal Environment Of Higher Vocational College Teaching Buildings In Rizhao

Higher vocational education occupies an important position in the education of China,which shoulders nearly fifty percent the national higher education task.The teaching building is an important place for students to accept knowledge in school.The quality of the indoor thermal environment of the classroom directly affects the students’ learning efficiency and teaching quality.This paper,taking a vocational college in Rizhao as the research object,studies the indoor thermal environment of the teaching building of Higher Vocational Colleges in Rizhao.Through the three methods of field survey,fuzzy comprehensive evaluation and questionnaire survey,the indoor thermal environment of teaching buildings in summer and winter has been evaluated and analyzed from different angles.According to the comparison of questionnaire,fuzzy comprehensive evaluation and field measurement results,analysis of the current situation of indoor thermal environment problems are winter indoor thermal environment satisfaction is far higher than that in summer,the summer indoor temperature is high,not strong sense of comfort,indoor thermal environment condition needs to be improved;the indoor temperature in winter is more appropriate,but the ventilation conditions is not good,so the indoor thermal environment in winter is low level of suitability.Based on the software simulation and analysis of indoor thermal environment,the main causes of uncomfortable indoor thermal environment in summer is that the overpopulation of the buildings,leading to large internal heat production.The buildings lack effective ventilation cooling methods so that the heat accumulation can not be released,resulting in high temperature,and the building without the sunshade structure,increasing the temperature increases.The main causes of indoor discomfort in winter are building exterior walls without thermal insulation layer,windows and doors have poor thermal insulation capacity which lead to the heat loss.Large population density and insufficient ventilation and ventilation volume result in low indoor air quality.Then the corresponding improvement measures are put forward in view of the existing problems.In summer,the indoor thermal environment can be improved by increasing the effective ventilation area by using the flat window,and to increase the natural ventilation by hot pressing.The winter indoor thermal environment can be improved through the use of the expansion of polystyrene board insulation as the building exterior insulation which can improve the indoor temperature,and achieve the green energy-saving effectiveness.The improvement of the insulation performance of the window can be achieved by adding a high light transparent glass patch,or using a double window and a hollow glass window...