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Design optimisation of internal shading device in multiple scenarios: Case study in Bandung, Indonesia
Mangkuto R.A.a, Dewi D.K.a, Herwandani A.A.a, Koerniawan M.D.a, Faridahb
a Building Physics Research Group, Faculty of Industrial Technology, Institut Teknologi Bandung, Labtek VI, Bandung, 40132, Indonesia
b Engineering Physics Program, Department of Nuclear Engineering and Engineering Physics, Faculty of Engineering, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2019 Elsevier Ltd In daylighting design for buildings, provision of solar shading device is required to ensure satisfaction of the visual comfort criteria in response to the sky condition. However, since real sky is constantly changing, the optimum state of the shading device would ideally be adaptive and dynamic, thus no single optimum solution can be expected. In this case, computational daylight simulation is a powerful tool for exploring the potential and solving the optimisation problem. This research therefore aims to demonstrate the use of computational daylight simulation to optimise internal shading device, regarding various daylight metrics in a real open-plan office with a west façade orientation in Bandung, Indonesia, using Rhinoceros and Grasshopper. To simulate multiple sky condition scenarios, optimisation was performed for four ranges of diffuse solar irradiance, i.e. 1–80 W/m 2 , 80–159 W/m 2 , 159–289 W/m 2 , and 289–541 W/m 2 , considering input variables of type of blinds (horizontal or vertical), slat angle, and blinds material specularity. The optimum solutions were obtained using Pareto frontiers that have been filtered with the constraints, which were determined separately for each scenario. Results show that the spatial daylight autonomy (sDA 300/50% ), annual sunlight exposure (ASE 1000,250 ), and percentage of daylight glare probability (%DGP >0.21 ) can all satisfy the design criteria.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Daylight autonomies,Open-plan offices,Optimisations,Solar irradiances,Solar shadings,Sunlight exposure[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Annual sunlight exposure,Open-plan office,Optimisation,Solar irradiance,Solar shading device,Spatial daylight autonomy[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]This research was supported by the Ministry of Research, Technology, and Higher Education of the Republic Indonesia , through the Applied Research Program (PTUPT, contract number 127/SP2H/PTNBH/DRPM/2018 ); and by the World Class University Team of Institut Teknologi Bandung (WCU ITB) , through the International Research Program 2018 (contract number P-LPPM.PN-10-22-2018 ). We wish to acknowledge Drs. H. Tata Takwana Soeriadinata (Dispusip Kota Bandung) and his staff for their cooperation during data collection in the building; Dr.Eng. Yasuko Koga (Kyushu University) for her comments on the earlier version of the work proposal; and Ir. R. Triyogo, MDesSc. (Institut Teknologi Bandung) for his comments on the final project report. We gratefully acknowledge the funding from USAID through the SHERA program – Centre for Development of Sustainable Region (CDSR) .[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1016/j.jobe.2019.100745[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]