The Study Of The Thermal Adaptation Of Rural Residents In Humid And Hot Climates

In recent years,Chinese scholars have done a lot of research on indoor thermal environment and thermal comfort of residential buildings,but the research on the thermal comfort of rural residents is still very few.And the research on thermal comfort of residential buildings in urban areas does not apply to rural areas.Through a large number of literature research found that a lot of study of hot humid area in China is mostly for urban residents or students.However,there are few studies on thermal adaptation in rural residents.Therefore,it is necessary to investigate the indoor thermal environment and thermal comfort of rural residential buildings in hot humid climate area of china.This topic mainly studies the indoor thermal environment and the thermal comfort of the rural houses in the humid hot climate area.Select a typical residential building in 13 rural areas around Beihai for long-term tracking test,and the records of subjective responses such as thermal environment parameters and thermal sensation of local residents were also carried out.In this paper,the subjective responses such as thermal sensation,wet feeling and wind sensation of the rural residents in the humid hot climate region were analyzed.In 48.3% of subjects,the sensation of heat was neutral,annual wet sensation voting for neutral samples accounted for 50.4%.The relationship between temperature,relative humidity,wind speed,season and subjective feeling was analyzed,the measured and predicted thermal neutral temperature of the rural residential area in the humid hot climate area with the operating temperature as the evaluation index was 22.9?(top)and 23.9 ?(top)respectively.The measured and predicted thermal neutral temperature of the rural residential area in the humid hot climate region was obtained with the temperature as the index.The neutral temperature was 22.0?(ta)and 23.4?(ta),respectively.Then,through analyzing the adaptation behavior of the rural residents in Beihai,it is found that the adjustment of clothing is a behavior style for local residents to regulate their thermal comfort.However,when the thermal resistance of clothing is reduced to its limit,people will not continue to adjust the thermal comfort by reducing the thermal resistance of clothing,among them.The summer clothing thermal resistance is mainly distributed in the 0.2-0.4clo range,and the thermal resistance in the transition season is mainly distributed in the range of 0.2-0.8clo,and the winter clothing thermal resistance is mainly distributed in the 0.8-1.2clo range;Compare the thermal comfort of local residents in the condition of window opening and non fenestration.It was found that the heat neutrality temperature of the residents was 23.2 ?,and the neutral temperature was 21.9 ? when the window was not opened,the difference is 1.3 ?.It shows that the window can relieve the heat sensation and improve the thermal comfort of human body.Finally,the determination methods and application range of natural ventilation environment and indoor thermal comfort zone at home and abroad are discussed,used to evaluate the hygrothermal environment in our humid hot climate zone.It is found that the temperature range of residents in hot and humid climate areas is wider than that prescribed by various standards.It is indicated that the standards are not applicable to the humid climate zone in china.Therefore,the author established a heat acclimatization model suitable for the humid and hot climate areas in china.The research results can not only provide a specific theoretical basis for the formulation and improvement of the thermal comfort standards and specifications,but also provide a theoretical basis for the further improvement.It can also contribute to the promotion of human settlements,health and sustainable development in china.