Measurement and Assessment for the Indoor Thermal Environment of Newly built University Buildings in Summer

Abstract

This study is intended to measure and assess the indoor thermal environment of newly built university buildings in summer. Target buildings for the measurement and assessment of the indoor thermal environment are I university buildings in incheon area. Six buildings were selected by considering the key features and building use in university. They are main office, professor"s office, lecture room, library reading room, library storage room and cafeteria. And the Indoor thermal environment elements including temperature, relative humidity, air velocity, mean radiant temperature and PMV were measured and assessed in summer. The temperature of main office, library reading room, cafeteria was maintained in good condition with 24~27℃ in which the air conditioning system is running. The library storage room temperature was too low as of 22~23℃. Improvements are needed. The professor"s office and Lecture room temperature was slightly higher than the outside temperature because the ceiling FCU was operated by blowing mode. The room temperatures at window side was higher with 0.5~2.5℃ than the center and aisle of the room. It showed the characteristics of the glass curtain wall building. The improvement is needed in the case of large difference in temperature. The relative humidity in each rooms was generally good. But the relative humidity in library storage room was too high with 78-80%, so the humidity reduction is needed. In addition, the relative humidity at window side was slightly higher than the center and aisle of the room. The adjustment for the installed cooling equipment location or operating conditions are needed. The air velocities in each room was less than 0.5 m/s respectively. The mean radiant temperature of the professor"s office was the highest with 27.6~28.1℃. And the mean radiant temperature of the Library reading room and library storage room was lowest with 23.4~24.1℃. The PMV of professor"s office and lecture room was neutral condition with -0.2~0.0. The PMV of cafeteria, main office and library reading room was in cool condition with -0.6~-0.3, -0.7~-0.4 and -0.8~-0.2 respectively. However, the PMV of library storage room was in too cold condition with -1.7~-1.1. Actions to improve PMV were needed.