jailcd2019-083: The Building Orientation Effect of Classroom on Achieving Thermal Comfort

Abstract

The study of indoor thermal comfort was carried out on four typical classrooms in different faculties at the Universitas Pendidikan Indonesia, i.e. Faculty of Educational Sciences, Faculty of Economics and Business Education, Faculty of Sports and Health Education and Faculty of Technology and Vocational Education.
This study aims to assess thermal comfort in the classroom during lesson hours 7 am – 5 pm and describe whether building orientation contributes to the thermal comfort in the classroom. The measurement is taken from 07.00 to 17.00, using wind and weather meter tool within the one-hour intervals. The data from the measurement provides temperature (Ta), humidity (RH), wind speed (v). The calculation to find comfort index uses Rayman 1.2 and define Physiological Equivalent Temperature (PET) in the hot and humid climate context. The results show that classes in the west-east oriented buildings have a longer duration of comfort and average PET is 29.8℃ which is at neutral comfort perception and the classes in the southeast-southwest oriented building have the shortest duration comfort and the average PET is 30.9℃ .