Komparasi Sensitivitas Pola Perforated Screen Non-Uniform terhadap Respon Pencahayaan dan Ventilasi Alami pada Rusunawa

Seran, Marchiani Rosaria (2026) Komparasi Sensitivitas Pola Perforated Screen Non-Uniform terhadap Respon Pencahayaan dan Ventilasi Alami pada Rusunawa. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Perforated screen sebagai elemen fasad pasif banyak diterapkan pada bangunan beriklim tropis untuk meningkatkan pencahayaan alami dan ventilasi alami. Namun, penelitian terdahulu umumnya masih mengevaluasi pengaruh porositas atau bentuk perforasi terhadap satu parameter performa lingkungan secara terpisah, sehingga belum menjelaskan bagaimana perubahan distribusi geometri perforasi pada perforated screen non-uniform menghasilkan karakter comparative sensitivity yang berbeda terhadap respons pencahayaan alami dan ventilasi alami, mekanisme fisik yang mendasarinya, serta trade-off antara kedua parameter tersebut. Penelitian ini bertujuan menganalisis pengaruh konfigurasi perforated screen non-uniform terhadap respons pencahayaan alami dan ventilasi alami, mengevaluasi comparative sensitivity setiap konfigurasi, menjelaskan mekanisme fisik yang membentuk perbedaan respons, serta menganalisis trade-off sebagai dasar evaluasi desain. Penelitian menggunakan pendekatan kuantitatif melalui eksperimen lapangan pada mock-up rumah susun dengan empat konfigurasi perforated screen non-uniform, yaitu Top–Bottom, Bottom–Top, Heavy–Middle, dan Narrow–Middle, yang memiliki rasio porositas panel relatif sama, tetapi distribusi geometri perforasi berbeda. Parameter yang dianalisis meliputi iluminasi, Daylight Factor, kecepatan udara, dan Velocity Decay Ratio. Analisis dilakukan menggunakan statistik deskriptif, paired sample t-test, one-way ANOVA, uji lanjut Tukey HSD, analisis comparative sensitivity, sintesis mekanisme fisik, dan analisis trade-off. Hasil penelitian menunjukkan bahwa seluruh konfigurasi memberikan pengaruh signifikan terhadap respons pencahayaan alami dan ventilasi alami dibandingkan dengan Base Case. Setiap konfigurasi menunjukkan karakteristik comparative sensitivity yang berbeda, dengan Heavy–Middle menghasilkan iluminasi tertinggi, Narrow–Middle menghasilkan nilai DF tertinggi, Bottom–Top menghasilkan kecepatan udara tertinggi, dan Top–Bottom menghasilkan nilai VDR ventilasi total tertinggi. Perbedaan tersebut menunjukkan bahwa distribusi geometri perforasi mengubah mekanisme propagasi cahaya, luas bukaan, hambatan lokal, dan penurunan tekanan, sehingga membentuk karakter respons yang berbeda serta menghasilkan trade-off antara pencahayaan alami dan ventilasi alami. Penelitian ini berkontribusi melalui pengembangan kerangka evaluasi berbasis comparative sensitivity yang mengintegrasikan analisis pengaruh, mekanisme fisik, dan trade-off sebagai dasar evaluasi desain perforated screen non-uniform pada bangunan beriklim tropis
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Perforated screens have been widely applied as passive façade elements in tropical buildings to improve daylighting and natural ventilation. However, previous studies have generally focused on evaluating the effects of porosity or perforation geometry on individual environmental performance parameters, without explaining how variations in the geometric distribution of perforations in non-uniform perforated screens produce different comparative sensitivity characteristics for daylighting and natural ventilation responses, the underlying physical mechanisms, and the resulting trade-off between these two environmental systems. This study aims to analyze the influence of non-uniform perforated screen configurations on daylighting and natural ventilation responses, evaluate the comparative sensitivity of each configuration, explain the physical mechanisms governing the observed responses, and analyze the trade-off between daylighting and natural ventilation as a basis for design evaluation. A quantitative approach was employed through field experiments using a full-scale low-cost apartment (Rusun) mock-up. Four non-uniform perforated screen configurations (Top–Bottom, Bottom–Top, Heavy–Middle, and Narrow–Middle) with similar panel porosity ratios but different geometric distributions were investigated. The evaluated parameters included illuminance, Daylight Factor, air velocity, and Velocity Decay Ratio. Data were analyzed using descriptive statistics, paired sample t-tests, one-way ANOVA, Tukey HSD post hoc tests, comparative sensitivity analysis, physical mechanism synthesis, and trade-off analysis. The results demonstrate that all configurations significantly affected daylighting and natural ventilation responses compared with the Base Case. Each configuration exhibited distinct comparative sensitivity characteristics: Heavy–Middle produced the highest illuminance, Narrow–Middle achieved the highest DF, Bottom–Top generated the highest air velocity, and Top–Bottom produced the highest total ventilation VDR. These differences indicate that variations in perforation geometry modify light propagation, effective opening area, local resistance, and pressure equalization, leading to different environmental response characteristics and a trade-off between daylighting and natural ventilation. The main contribution of this study is the development of a comparative sensitivity-based evaluation framework integrating performance analysis, physical mechanisms, and trade-off analysis as a design evaluation approach for non-uniform perforated screens in tropical buildings.

Keywords: non-uniform perforated screen, comparative sensitivity, daylighting, natural ventilation, trade-off.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	perforated screen non-uniform, comparative sensitivity, pencahayaan alami, trade-off, ventilasi alami.non-uniform perforated screen, comparative sensitivity, daylighting, natural ventilation, trade-off.
Subjects:	N Fine Arts > NA Architecture > NA2542.36 Sustainable architecture N Fine Arts > NA Architecture > NA2941 Facades N Fine Arts > NA Architecture > NA7860 Apartment houses.
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Architecture > 23201-(S1) Undergraduate Thesis
Depositing User:	Marchiani Rosaria Seran
Date Deposited:	03 Aug 2026 07:25
Last Modified:	03 Aug 2026 07:25
URI:	http://repository.its.ac.id/id/eprint/142256

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