PENGARUH APLIKASI ELEMEN PEMBAYANG TERHADAP KINERJA TERMAL SELUBUNG BANGUNAN

• Main Authors: , Dewa Made Putra Readitya, , Ir. Jatmika Adi Suryabrata, M.Sc., Ph.D.
• Format: Theses and Dissertations NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2013
• Subjects: ETD
• Online Access: https://repository.ugm.ac.id/125705/; http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=65879
• Institution: Universitas Gadjah Mada

Indonesian National Standardization Committee (SNI) has decided maximum OTTV values that allowed for air building is 35 W/m2. This rule aimed to gain the reduction of external heat load by building casing design, so it will reduce cooling load. One of passive design strategy that can do to reduce external heat load is by applying shading element. In term to help designers to design building case that can reduce external heat load, so this research try to know how much the influence of shading element application to OTTV values reduction and to formulated configuration alternative between shading element, SHGC (Solar Heat Gain Coefficient) and WWR (Window to Wall Ratio) that can fulfill OTTV values requirement. This research method used quantitative method with experimental strategy and simulation. This simulation is done to office floors Hypothetic building object and air conditioning with field size 36m x 36m. There are two shading type that will configured with seven SHGC variants (0.2 until 0.8) and six WWR variants (15%, 25%, 35%, 45%, 55%, 65%) are Overhang dan Side fin. The research result shows that if on overhang shading there is the same VSA angle, so OTTV reduction percentage is same, while side fin shading, there is no same effect. On the same HSA angle, side fin shading with closer gap interval gained higher OTTV reduction percentage. West part that have highest sensitivity to external heat gain need the longest shading wide, while south side that have lowest sensitivity need the shortest shading wide. The best direction for overhang and Side-fin is north, while the worst direction for overhang shading is very influenced by WWR values used, and for Side-fin is west. The tilt given on Side-fin and overhang give significant effect on east and west direction. Overhang and side fin combination (Eggcrate) give the higher OTTV reduction than Overhang and side fin. Configuration between shading (overhang and side fin) with SHGC that fulfill maximum OTTV 35 W/m2 on every WWR and orientation is attached in the graphic.