Field study on indoor thermal environment in coastal traditional dwelling of North Jiangsu in summer

Through contrasting the indoor thermal environment in the traditional dwelling with the new built dwelling in coastal North Jiangsu in summer, finds that the indoor temperature fluctuation of the traditional one is less than that of the new in all day, and the thermal stability is better. Compares the wall temperature in the traditional dwelling with that in the new built dwelling, finds that the thermal stability of the envelope in the traditional dwelling is better. The indoor temperature has the characteristics of vertical stratification in the traditional dwelling. The indoor temperature near the roof is 2.4 ℃ higher than that at 1.5 meters. Only one-side opened window leads to weak ventilation effect in the traditional dwelling. The indoor ventilation velocity is less than 0.1 m/s in all day and it is only 0.01 m/s at night. By using modified PMV-PPD model to predict the thermal comfort, finds that the indoor thermal comfort is worse in the traditional dwelling and the PMVe is above 0.85.