Field Investigation of Indoor Thermal Environment and Thermal Adaption of Dalian Residences in Winter

To study the thermal environment of Dalian residences, in winter from 2011 to 2012 field investigation were conducted on indoor thermal environment, thermal sensation and adaptation measures. Thermal comfort instrument was used, and 102 subjective questionnaires in 36 families were collected. The acceptability to the thermal environment is 93.2%. The neutral temperature is 20.44°C, and the expected temperature is 20.81°C. 80% of the acceptable temperature range is 17.38-24.28°C. 57% of subjects think it is dry indoor and measures shall be taken for humidification.