Thermal condition of passive cooling system in Bogor Cathedral Church

Building designs that are being prioritized today are sustainable architecture and green architecture. The designs can reduce the energy consumption that has a positive impact on climate. Actually, the design of such buildings has started since the Dutch colonial era. Buildings from that era are very adaptive to the climate just using passive cooling system. Passive cooling became the best technology at that time to achieve thermal comfort and save energy. Church is one of the few public buildings requiring special attention to its thermal comfort. The churches built during the Dutch colonial era like every Cathedral Church succeeded in achieving thermal comfort. Some of Cathedral Churches like in Semarang and Bogor city have unique ventilation called low ventilation located at the bottom area of the wall. Research held in these two Cathedral Churches (Semarang and Bogor) in three periods of church services and some specified measurement items. Dry bulb temperature, effective temperature, relative humidity, and air velocity were measured to gain thermal condition. The purpose of this study was to examine building's thermal condition and low ventilation impacts. The results of this study showed that as the effect of low ventilations, there was a significant change on thermal condition inside the buildings. The measuring points near the low ventilation had lower effective temperature, relative humidity, and higher air velocity compared with others. This study provides insight into passive cooling system; in this case, low ventilation is essential part for sustainable architecture.

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“…Relative Humidity in Semarang CathedralAdvances in Engineering Research, volume 156 Relative Humidity in Bogor Cathedral (Source:Sekatia 2018) …”

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confidence: 99%

The Effect of Low Ventilation to Thermal Condition in Cathedral Church

Sekatia¹,

Setyowati²,

Hardiman³

et al. 2019

Proceedings of the 18th International Conference on Sustainable Environment and Architecture (SENVAR 2018)

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“…Meanwhile, the research conducted in Bogor Cathedral Church [18] discovered that the obtained effective temperature (TE) was achieved by the application of an optimal lower ventilating system. The application of a lower ventilating system influences the result from the measurement of the temperature, air humidity, and wind velocity…”

Section: Tropical Rainforest Climatementioning

confidence: 99%

Comparison of Static Model, Adaptation Study, and CFD Simulation in Evaluating Thermal Comfort Based on Köppen Climate Classification System in Churches in Indonesia

Hildegardis

Saraswati

Putra

et al. 2021

J. Eng. Technol. Sci.

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This research examined thermal comfort in church buildings in Indonesia by making a comparison between three different Indonesian climatic regions using three different research models. A static model, an adaptation study model and a CFD simulation were used to find the similarities and differences between the results generated from determining thermal comfort in church buildings in the three regions. The comparison revealed that church buildings had different PMV scores at each measuring point that were inversely proportional to the subjects’ response on thermal comfort inside the buildings, i.e. points adjoining with openings affect a low PMV score and a high perceived thermal sensation, and vice versa. The CFD simulation showed that changing the conditions of the openings affects air velocity and flow into the building, which influences the subjects’ thermal comfort response inside the churches.

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