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All Journal Majalah Forum Teknik UGM International Conference on Coastal and Delta Areas Nature: National Academic Journal of Architecture Jurnal Linears Journal of Architectural Research and Design Studies Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat Astonjadro Atrium : Jurnal Arsitektur EPI International Journal of Engineering Jurnal Lingkungan Binaan Indonesia AGORA : Jurnal Penelitian dan Karya Ilmiah Arsitektur Usakti
Nurul Jamala
Departemen Arsitektur, Fakultas Teknik, Universitas Hasanuddin, Indonesia
Aerospace Engineering Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Public Health Social Sciences Other

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Journal : Astonjadro

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The Effect of Shading Devices on OTTV (Overall Thermal Transfer Value) Value of Office Buildings: Case Study of PT Industri Kapal Indonesia (IKI) Building Zahari, A. Firman; Mulyadi, Rosady; Jamala, Nurul
ASTONJADRO Vol. 12 No. 3 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i3.14255

Abstract

One of the passive design strategies that effectively reduce the heat load on the building envelope, especially in areas with a large surface area of glass shading Device. The research aims to measure the design influence of shading devices against the value of Overall Thermal Transfer Value (OTTV) buildings. Research using quantitative methods, research done by trying Shading devices with Vertical Models, Horizontal multiple fins, and Egg crates, which have the length and slope provided by the Indonesian National Standard SNI. It tests each design shading measured on an impairment basis OTTV the best and best under 45 Watt/m². The results of the study show that shading devices affect the impairment of OTTV. The longer the shading device and the higher the slope, the more effective it is in blocking incoming radiation through the glass surface. Impairment OTTV existing buildings without a shading device have an initial value of 69.572 W/m2, decreased by 55% to 31.57 W/m2. Shading an egg crate with length120 cm with a slope of 40° is the best shading based on a comparative analysis between vertical louver shading and horizontal multiple fin shading. This is due to shading egg crates being able to respond to the sun in incoming low and high altitude angles to minimize or block radiation that enters through the glass surface.
Type on the Sound Absorption Coefficient Chicken Feather Composite Artayani, Meldawati; Kusno, Asniawaty; Jamala, Nurul; Mulyadi, Rosady
ASTONJADRO Vol. 13 No. 2 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i2.15112

Abstract

the potential to be a composite reinforcement and increase sound absorption through the Chemical Pulping process. This study aims to investigate the alleged influence of the use of matrix type on the strength of sound absorption in chicken feather fiber composites. The research method used is experimental research with the manufacture of composite specimens that vary the volume fraction of composite fibers with various types of matrices. Sound absorption testing using impedance tubes. Data analysis techniques in this study use descriptive data analysis. The results of this test show the effect of using matrix type on increasing the absorption coefficient of SBA composites. The maximum absorption coefficient is found in the SBA-K composite (Chicken Feathers – Kanji).
Co-Authors Annajma Nurul Wika Baharuddin Hamzah Baharuddin Hamzah Baharuddin Hamzah Baharuddin, Atikah Nurulfajri Edward Syarif Idawarni Asmal Idrus, Irnawaty Kusno, Asniawaty Latif, Syavir Luizjaya, Jacklyn M. Syavir Latif Mahsun Wahid Meldawati Artayani Moh.Eran Muh. Awaluddin Hamdy Muhammad Taufik Ishak Nimah Natsir Nurhayati Kamaruddin Pratiwi Mushar Rahma Hiromi Ramli Rahim Ramli Rahim Ramli Rahim Ramli Rahim Rosady Mulyadi Rosady Mulyadi Samsuddin Amin Syahriana Syahriana Syam Syarif Beddu Syavir Latief Syavir Latif Syavir Latif Yahya Sirajuddin Yusaumi Ramadhanti Fitri Taufik Yushaumi Ramadhanti Zahari, A. Firman