Antonius Ardiyanto, - and N. H. Hamid, - and Yeri Sutopo, FT Teknik Sipil (2019) Thermal Comfort of Colonial Office Building, Semarang Using Energyplus Simulation. ARPN Journal of Engineering and Applied Sciences, 14 (2). pp. 834-841. ISSN 1819-6608

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Abstract

Many colonial office buildings are located in the Old City of Semarang, Central Java, Indonesia have a passive cooling system. These office buildings are characterized by high ceilings and roof angles, thick wall panel and normally used as a gallery under sun shading. The Djakarta Lloyd office room was selected to determine the correlation between the width of sun shading and percentage of wall opening toward thermal comfort parameters such as indoor air temperature and percentage difference of relative humidity. The calibration and validation graph of temperature versus time was conducted between data measured at site and computer simulation using Energy Plus program. The results showed that 3.6m width of sun shading and 40% of the wall opening is significant toward the indoor air temperature and percentage differences of relative humidity. Whereas, 0m together with 1.8m and 1.8m with 3.6m of width of sun shading and 10% together with 20% and 10% together 40% of wall opening were insignificant toward indoor air temperature and relative humidity. For design purposes, it is recommended to use the narrowest wall opening of 10% and the widest sun shading to give the lowest indoor air temperature and the highest percentage of relative humidity for the colonial Dutch office building particular in Semarang, Indonesia.

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