jismart2020031: Indoor Thermal Environment Analysis of Teaching Office Building: a Case Study

Abstract

The quality of indoor thermal environment directly affects the health and work efficiency of indoor personnel. In this paper, the indoor thermal environment of existing teaching and office buildings in Chengdu (hot summer and cold winter zone) is obtained by testing and PMV-PPD evaluation. The results showed that the indoor thermal comfort is poor in both winter and summer due to the high indoor and outdoor relative humidity (≥70%), and the PPD is as high as 60%. Reducing the indoor relative humidity is the main direction to improve the indoor thermal environment in Chengdu. Secondly, the good insulation performance of the envelopes (reducing heat transfer coefficient and increasing thermal inertia) can effectively prevent the effect of outdoor thermal disturbance on the indoor thermal environment. Finally, except the daily 12:00-16:00, proper window ventilation can effectively improve the indoor thermal environment in summer. The research results can provide directions and data support for improving the indoor thermal environment and energy-saving renovation of educational buildings.