| 요약2 |
For the building energy saving, Korean Prime Minister recommended that the room temperature keep above 28℃ during cooling season in the public facilities. If the facility manager would keep the room's temperature to the extent, Predicted mean vote(PMV), Percentage of predicted dissatisfied(PPD) with ISO-7730 in the room were approximately 1.2(“slightly warm”), 35%, respectively. The previous research developed the passive cooling jacket(PCJ) with reflection louver and ventilation clothes, and it attached ice packs on the PCJ of which name is ICEPCJ for the human body cooling. The purpose of this research is to improve the thermal comfort with ICEPCJ in the room controlled within 28℃ through the experiment with subjects who are wearing clothes. The research measured MST(Mean skin temperature) and thermal environment parameters, and it asked ASHRAE TSV(Thermal sensation vote 7scale) and DISC(Thermal discomfort 11scale) for the 6 voluntary subjects who are each subject wearing ICPCJ, PCJ, TTJ(Traditional textile jacket) in due sequence. Factors are measured in the experiment room where the controlled conditions were DBT 28(℃), RH 65%, air velocity 0.05(m/sec). In this experiment, TSVs and DISCs of subjects who were wearing ICEPCJ were approximately 0.67 lower than who are wearing PCJ, and 1.83 lower than when wearing TTJ. MST of subjects when wearing ICEPCJ were approximately 0.45℃ lower than when wearing PCJ, and 0.64℃ lower than when wearing TTJ. In conclusion, the ICEPCJ in this research can improve the thermal comfort in the room temperature controlled with 28℃ . |