INVESTIGATING THE IMPACT OF AFTERNOON SUNLIGHT ON HUMIDITY AND TEMPERATURE WITHIN FACADE ENVIRONMENT: A CASE STUDY OF WARNA COFFEE & NORTHWAY COFFE

Abstract

The influence of the afternoon sunlight on thermal comfort encompasses humidity and temperature generated by building facade materials made of glass and the building's orientation. Excessive exposure to the afternoon sunlight tends to reduce productivity, especially in coffee shops where they are now used not only as places to enjoy coffee but also as places to enhance productivity. Humidity and room temperature undoubtedly support users in feeling comfortable in a place. To achieve this, an assessment is needed in a place frequently used by several people to improve their productivity. In this case, a direct measurement survey was conducted in two coffee shops: the first one (Warna Coffee) located at Palagan Tentara Pelajar Km 12.5 Gondanglutung, Gondong, Donoharjo, Ngaglik, Sleman, Yogyakarta, and the second one (Northway Coffee) located at Jl. Kaliurang No.Km 12, Sardonoharjo, Kec. Ngaglik, Kabupaten Sleman, Daerah Istimewa Yogyakarta. This research used data collection and processing methods from readings, theoretical internet sources, and developed all the materials to produce a good article. This research is more analytical or descriptive in nature. Additionally, the study conducted a survey to obtain field data and conditions at the research locations. After conducting the survey and obtaining several data points, the research performed testing using Computational Fluid Dynamics (CFD) applications, where CFD measured various parameters that needed to be known and achieved. In addition to using CFD, direct measurements were also taken using tools to measure temperature and humidity. The humidity result at Northway Coffee was 66.7%, while Warna Coffee had a humidity level of 67.1%. The temperature obtained at Northway Coffee was 27.5%, and Warna Coffee was 29.3%. This research is more analytical or descriptive in nature. It is hoped that with this research, the productivity level in a coffee shop, as observed in this study, will not be disrupted by productivity. It may even increase productivity in the location, which is an additional positive outcome desired from the conducted study.