The Improvement Of Thermal Environment In Earth Dwellings Of Congo.

At the beginning of the 20th century,under the profound influence of the Industrial Revolution,huge innovations were produced in building materials and construction technology,which changed the living concepts of Congo residents,and had a huge impact on the renewal and construction of traditional Congolese houses.In many urban areas of the Republic of Congo,traditional earthen houses have been replaced by reinforced concrete,and Congolese earthen houses are only retained in rural areas.Because Congo is located near to the equator,the temperature changes little throughout the year and the climate keeps alternating between dry and rainy seasons.Based on the local climate and regional characteristics,combined with local economic conditions,the Congolese earthen houses with earth walls and two-sloping straw roofs as the main enclosure structure have been produced.In order to give full play to the advantages of traditional materials and realize the green construction and sustainable development of Congolese dwellings,take Oyo traditional earthen house as the research object,and the current situation is addressed through research methods such as data review,actual investigation,climate suitability analysis and software simulation.Against the problems like unsuitable building orientation,uncomfortable space scale,and unreasonable window structure,finally put forward a suitable residential construction strategy for the area.First of all,the relationship between architecture and climate is explained by the method of literature review,which is embodied in the influence of building orientation and building materials on the indoor thermal environment.We systematically organized some measures to reduce building energy consumption by using ventilation in buildings and the building design principles applicable to dry and hot areas,and explains the relationship between indoor thermal environment and building energy consumption from the perspective of thermal comfort.Secondly,the research method of the traditional mud house in Congo was designed,the ancient and new residential models were established by using Ecotect energy consumption simulation software,and the expected results of the residential building simulation and the limitations of the software simulation were preliminary summarized.Finally,through simulation and comparison,more suitable passive design measures are obtained.The building orientation of the Congolese earthen house should be arranged at 20° from north to east,the thickness of the earth wall should be increased to 250 mm for thermal insulation,and the height of the external wall should be increased to 2500 mm or more.To improve the indoor wind environment,the thickness of thatch roof should be at least 150 mm,and cantilever 1m for building shading.Secondly,increase the window-to-wall ratio appropriately.The window size can be increased to 1.2m×1.2m,and the door can be increased to 1m×2m to improve the indoor light environment and increase indoor air circulation.