OPTIMALISASI PENCAHAYAAN ALAMI GEDUNG PERPUSTAKAAN (STUDI KASUS: GEDUNG PERPUSTAKAAN UNIVERSITAS ISLAM NEGERI ALAUDDIN MAKASSAR)

Muh. Aryanugraha Ismajaya; Nurul Jamala B; Asniawaty

doi:10.24252/nature.v10i2a4

Muh. Aryanugraha Ismajaya Universitas Islam Negeri Alauddin Makassar
(ID)
Nurul Jamala B Departemen Arsitektur, Universitas Hasanuddin
(ID)
Asniawaty Departemen Arsitektur, Universitas Hasanuddin
(ID)

DOI: https://doi.org/10.24252/nature.v10i2a4

Keywords: natural lighting, library building, optimization, light shelf, energy efficiency, Ecotect

Abstract

Abstrak_ Penelitian ini mengoptimalkan peningkatan distribusi pencahayaan alami di Gedung Perpustakaan Universitas Islam Negeri Alauddin Makassar. Metode penelitian menggunakan pendekatan kuantitatif yang melibatkan pengukuran langsung pencahayaan alami dengan lux meter di lokasi serta penyebaran kuesioner kepada pengunjung perpustakaan. Data lapangan diolah menggunakan MS Office Excel untuk analisis pencahayaan, sedangkan aplikasi Autodesk Ecotect dengan plugin Dekstop Radiance digunakan untuk mensimulasikan hasil pengukuran lapangan. Simulasi dilakukan menggunakan 6 sampel model light shelf yang berbeda dalam upaya mengoptimalkan pencahayaan alami. Hasil menunjukkan bahwa penggunaan light shelf dengan posisi di tengah dan sudut miring pada bagian luar menjadi strategi terbaik dalam memaksimalkan cahaya alami yang masuk ke dalam gedung. Pada lantai 2, light shelf ditempatkan di tengah jendela dengan kemiringan 15° pada setiap bukaan jendela luar, yang menghasilkan nilai R² tertinggi sebesar 0,94. Sedangkan pada lantai 3, penggunaan light shelf di tengah jendela dengan kemiringan 30° pada sisi utara dan 15° pada sisi selatan memperoleh nilai R² tertinggi sebesar 0,85.

Kata kunci: Pencahayaan Alami; Gedung Perpustakaan; Optimalisasi; Light Shelf; Efisiensi Energi;Ecotect

Abstract_ This research aims to optimize natural lighting in the Alauddin Makassar State Islamic University Library building by enhancing the distribution of natural light. The study employs a quantitative method involving direct measurement of natural lighting using a lux meter on-site and the dissemination of questionnaires among library visitors. Field measurement data is processed using MS Office Excel to assess the lighting conditions. Additionally, the application of Autodesk Ecotect with the Desktop Radiance plugin is utilized to simulate field measurement outcomes. To optimize natural lighting, simulations are conducted using six different models of light shelves. The simulation results indicate that employing a light shelf positioned centrally with an external angled surface proves most effective in maximizing natural light entry into the building. On the second floor, a centrally positioned light shelf with a 15° angle on each outer window opening yields the highest R² value of 0.94. Meanwhile, on the third floor, using a centrally positioned light shelf with a 30° angle on the north side and 15° on the south side of the window achieves the highest R² value of 0.85.

Keywords: Natural Lighting; Library Building; Optimization; Light Shelf; Energy Efficiency; Ecotect

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