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The effects of veranda space on indoor thermal environments in Dutch colonial buildings in Bandung, Indonesia
Alfata M.N.F.a, Kubota T.a, Wibowo A.S.b
a Graduate School for International Development and Cooperation (IDEC), Hiroshima University, Higashihiroshima, Hiroshima, 739-8529, Japan
b School or Architecture, Planning and Policy Development, Bandung Institute of Technology, Jalan Ganesha, Bandung, 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]© Copyright 2017 NCEUB.This study investigates the detailed thermal environments in the existing Dutch colonial buildings in Bandung, Indonesia through field measurements to find out the embedded passive cooling strategies, focusing especially on the effects of veranda spaces. Major thermal parameters were measured at 1.1 m above floor in the center of selected rooms and veranda spaces of the buildings. The vertical distributions of air temperature were also measured at the same points. The results revealed that daytime indoor air temperatures in the buildings maintained relatively lower values (3.4-5.6°C lower) compared to the corresponding outdoor temperatures due primarily to the thermal mass effect. A large vertical gradient in air temperature was seen in the rooms because of the high ceiling height, which is about 5.3-5.7 m. The high ceiling contributed to maintain lower daytime air temperatures at the occupant’s level even when the windows were opened. When a veranda space was enclosed, it played a role as a thermal buffer and daytime air temperature inside was approximately 3.4°C lower than that adjacent to a semi-open veranda space. Meanwhile, the veranda space prevented the direct solar radiation from entering the rooms during the peak hours, while ensuring cross-ventilation.[/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]Direct solar radiation,Indoor air temperature,Indoor thermal environments,Outdoor temperature,Thermal environment,Thermal parameters,Vertical distributions,Vertical gradients[/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]Dutch colonial building,Hothumid climate,Passive cooling,Thermal comfort,Veranda,Vernacular architecture[/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][{‘$’: ‘The?authors?would?like? to?express?sincere?gratitude?to?the?Indonesia?Endowment?Fund?for? Education? (LPDP)? and? the? Research? Institute? for? Human? Settlements? (RIHS)?-? Ministry? of? Public? Works? of? Indonesia.? This? research? was? supported? by? a? JSPS?KAKENHI? (Grant? No.? JP? 15KK0210).’}, {‘$’: ‘The authors would like to express sincere gratitude to the Indonesia Endowment Fund for Education (LPDP) and the Research Institute for Human Settlements (RIHS) – Ministry of Public Works of Indonesia. This research was supported by a JSPS KAKENHI (Grant No. JP 15KK0210).’}][/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][/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]