Browsing by Author "Fufa Daba"

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    Developing a Thermal Comfort Zone Chart for Different Climatic Zones of Ethiopia.
    (Addis Ababa University, 2020-10) Fufa Daba; Assefa Tibebu
    Thermal comfort is the state of mind that expresses satisfaction with the prevailing environmental condition. The problem of urban environment located in extremely hot and cold parts of Ethiopia is the thermal discomfort and become less suitable for living. This results in a problem of health and high energy consumption for cooling and heating. This study focuses on developing qualitative and quantitative thermal comfort charts for different climate zones of Ethiopia. The data set of air temperature, wind speed, solar radiation, humidity, and precipitation recorded for 30 consecutive years were used and had been obtained from Global weather data for SWAT and EMA. Based on the environmental variable analysis, Ethiopia is classified into six climate zones namely: - Hot-dry, Warm humid, Warm-dry, Temperate, Cool, and Cold. From the finding, more than 53.6 % of the towns of Ethiopia clustered under temperate climate zones. The qualitative and quantitative bioclimatic chart with main passive design strategies were developed for representative cities. In all climate zones, mechanical cooling and heating are not required if the passive design strategies adopted properly except in the harsh season of the hot dry and cold region. The study used as a preliminary guide for climate responsive design and MCUD can utilize it to ensure sustainability. As this study is regional and microclimate is affected by different local factors, developing a similar bioclimatic chart is mandatory for each town and city of Ethiopia