Fuzzy Comprehensive Evaluation And Numerical Simulation Of University Classroom Thermal Environment

With the advancement of the society and the development of technology, people's demand for the architecture and the indoor environment is more and more high. The thermal comfort is one term of the good habitation environment. There is high occupant density in the university's classrooms, and the students' health of body and heart and the study efficiency will be straightly affected by the indoor thermal environment. At present, there are fewer researches on indoor thermal comfort of classrooms in our country.The evaluation of indoor thermal comfort is a fuzzy affair. According to 190 indoor thermal environment field experiment original data and subjective surveys, the subjection functions for indoor temperature, relative humidity and clothes thermal resistance relative to every evaluation grades of thermal comfort are made using fuzzy math basic theories. Then a fuzzy comprehensive evaluation model on indoor thermal comfort of the university's classrooms in chilliness region in winter is set up. The results of the model are compared with those of field tests five scale. The error is small, and it is reasonable that indoor thermal comfort is analyzed by fuzzy math theory.The three turbulence models in the software Airpak are checked according to the field test results, and Indoor Zero Equation is chosen to simulate the university classroom indoor thermal comfort in the early spring. The influence rules of indoor temperatures, PMV and PPD in the circumstances of different person density, number and position of windows are analyzed. The results are shown that the indoor person density and window number and position have a certain influence on the indoor thermal environment.