Christina E. Mediastika
Staf Pengajar Fakultas Teknik, Universitas Atma Jaya Yogyakarta

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DESAIN JENDELA BANGUNAN DOMESTIK UNTUK MENCAPAI "COOLING VENTILATION" Kasus uji: rumah sederhana luas 45m2 di Yogyakarta E. Mediastika, Christina
Dimensi: Journal of Architecture and Built Environment Vol. 30 No. 1 (2002): JULY 2002
Publisher : Institute of Research and Community Outreach, Petra Christian University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/dimensi.30.1.%p

Abstract

A two dimensional computational program was used to explore type, dimension, and number of windows in a 45 sqm domestic building to achieve cooling ventilation rates in 0 m/s outdoor windspeed. Prior to this, a manual calculation was constructed to limit and predict how the input for computational test would be. As in the manual test, the type of windows to be tested is jalousie (louvre) and casement. Primary and secondary weather data was also prepared for input. Subject to change variable is dimension and number of windows. Both manual and computational test indicated that to provide cooling ventilation rates (30 ach) in 0 m/s outdoor windspeed, the domestic building requires window area of approximately 50% floor area. Abstract in Bahasa Indonesia : Desain jendela bangunan domestik untuk mencapai "cooling ventilation" (30 air change per hour (ach) yang sangat dianjurkan bagi bangunan di daerah tropis lembab diuji pada studi ini. Pengujian dilakukan dengan sistem komputasi dua dimensi dan difokuskan pada kondisi kecepatan angin di seputar bangunan = 0m/det. Untuk memperkirakan model, dimensi dan jumlah jendela, sebelumnya telah dilakukan uji manual pada beberapa bangunan sejenis. Hasil uji manual yang telah dilengkapi dengan data-data primer dan sekunder mengenai suhu, kecepatan dan arah angin kemudian disusun sebagai input uji komputasi. Variabel yang senantiasa dirubah pada proses uji kali ini adalah dimensi dan jumlah jendela. Uji komputasi ini juga bertujuan untuk mem-validasi hasil uji manual tersebut. Kesimpulan yang dihasilkan tidak terlalu jauh berbeda dari kesimpulan pada uji manual, yaitu bahwa untuk memperoleh tingkat ventilasi cooling (30 ach) diperlukan luas jendela sekitar 50% luas lantai.
BARRIER DESIGN STRATEGIES TO CONTROL NOISE INGRESS INTO DOMESTIC BUILDINGS E. Mediastika, Christina
Dimensi: Journal of Architecture and Built Environment Vol. 31 No. 1 (2003): JULY 2003
Publisher : Institute of Research and Community Outreach, Petra Christian University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/dimensi.31.1.%p

Abstract

Noise source for buildings adjacent to streets is traffic-generated predominantly. Where people are mostly spend their time indoors, it is important for buildings to have screening or blocking to control noise intrusion into living spaces. But this blocking should also permit airflow. This is important for middle to low-cost domestic buildings, which do not employ conditioned ventilation. A common feature of Indonesian buildings, fence, is studied to perform noise barrier. The fence -a barrier to be- should obey three factors: position, dimension, and material. All these three factors were studied to seek compromised design for acoustic performance and natural ventilation purpose. Domestic building situated in the urban area of Yogyakarta was studying to see the most possible design of the barrier to be. There are two calculation methods employed to investigate the proposed design. The study shows that it is possible to gain minimum of 10 dB noise reduction by placing windows within the shadow effect of approximately 1.5 height fence-barrier.