The Impact of Transparency Ratio on Thermal Comfort: The Case Study of an Educational Building in Istanbul

Zoroğlu Çağlar F. , Zorer Gedik G. , Gökdemir H.

3rd International Conference of Contemporary Affairs in Architecture and Urbanism (ICCAUA-2020), Antalya, Turkey, 6 - 08 May 2020, no.316379, pp.6

  • Publication Type: Conference Paper / Summary Text
  • City: Antalya
  • Country: Turkey
  • Page Numbers: pp.6


One of the main functions of the buildings is to provide protection from negative environmental effects and to create healthy

and comfortable indoor environments. The thermal comfort conditions of the educational buildings affect students'

attention, focus, perception and learning levels. Solar radiation is one of the most important environmental factors affecting

thermal comfort conditions. The design of transparent areas is important in solar control. It is aimed to make suggestions for

determining and improving thermal comfort conditions in classrooms with different transparency ratios. Classrooms in the

same building (on the 4th and 5 floors) on the university campus, in the same direction (south) and with different

transparency ratios (other volume properties are the same) are determined as study areas. Measurements and surveys were

carried out during a day in heating period. PMV-PPD and AMV-APD data were obtained. The suitability of classrooms to

thermal comfort conditions was evaluated according to the comfort intervals specified in ASHRAE-55 and ISO 7730 standards.

It was determined that there were significant differences in thermal comfort between classrooms and measurement points.

If the transparency ratio is more than necessary, it causes discomfort and unnecessary energy consumption. Suggestions

have been made to ensure solar control and thermal comfort conditions.