05-10-2018, 07:44 AM
Bioclimatic chart by V olgyay shows the combination of temperature (on vertical scale ) and Relative humidity (horizontal Scale) which are comfortable
Oglyay’s chart has a constant comfort in the range from 20 to 30 degree C. The level of comfort is applicable to indoor spaces with the indoor level of clothing. The comfort zone is shown at the center of Olgyay’s chart. The chart takes into consideration levels of comfort that can be felt outside the comfort zone but in combination with ranges of other climatic factors such as mean radiant temperature, wind speed and solar radiation. Above the lower boundary of the zone shading is necessary to maintain reasonable level of comfort.
Another more popular bioclimatic chart is that of Givoni This chart is based on the linear relationship between the temperature amplitude and vapor pressure of the outdoor air. Givoni’s chart identifies the suitable cooling technique based on the outdoor climatic condition. Five zones are identified on Givoni’s chart: thermal comfort, natural ventilation, high mass, high mass with night ventilation and evaporative cooling.
Oglyay’s chart has a constant comfort in the range from 20 to 30 degree C. The level of comfort is applicable to indoor spaces with the indoor level of clothing. The comfort zone is shown at the center of Olgyay’s chart. The chart takes into consideration levels of comfort that can be felt outside the comfort zone but in combination with ranges of other climatic factors such as mean radiant temperature, wind speed and solar radiation. Above the lower boundary of the zone shading is necessary to maintain reasonable level of comfort.
Another more popular bioclimatic chart is that of Givoni This chart is based on the linear relationship between the temperature amplitude and vapor pressure of the outdoor air. Givoni’s chart identifies the suitable cooling technique based on the outdoor climatic condition. Five zones are identified on Givoni’s chart: thermal comfort, natural ventilation, high mass, high mass with night ventilation and evaporative cooling.