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HOUSE'S SOLAR CHIMNEY A NUMERICAL ANALYSIS ON THE THERMAL PERFORMANCE IN JAKARTA Bachrun, Abraham Seno; Vidiyanti, Christy; Ismail, Lokman Hakim; Abd. Wahab, Izudinshah
SINERGI Vol 24, No 3 (2020)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2020.3.010

Abstract

The abundance of solar light in tropical countries is the advantage of the utilization of solar energy. Increasingly expensive electricity forces buildings to use passive ventilation as building coolers. One of them is the use of the stack effect through the solar chimney. The absence of residential buildings that use the solar chimney as part of a passive ventilation system makes the need for prototypes for residential buildings. The application of solar chimney to homes in Jakarta is something new. Six types of the solar chimney have been tested on a prototype, one-story residential houses in Jakarta. The location was assumed to be in the densely populated area of South Jakarta. Wind velocity ambient data using Rubber locations. Using Ansys 16.0, simulations have been carried out, and solar chimney with double-full roof collector was able to induce a wind velocity of 0.41 m/s on average
STUDI PERBANDINGAN KINERJA PENCAHAYAAN DARI RAK CAHAYA KONVENSIONAL DAN RAK PENGARAH CAHAYA PADA GEDUNG BERTINGKAT TINGGI Vidiyanti, Christy; Bachrun, Abraham Seno
Jurnal Arsitektur dan Perencanaan (JUARA) Vol 5, No 1 (2022): Februari (Jurnal Arsitektur dan Perencanaan)
Publisher : Universitas Aisyiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31101/juara.v5i1.2159

Abstract

Daylight conditions in high-rise buildings have phenomenon that the side of the room that is close to the window have a high level of daylight, while the other side receives less daylight. The use of light shelf is still possible to be installed, but light shelf still have a minimum Useful Daylight Illuminance (UDI) value of 44%. This happens because the process of reflection on the light shelf occurs more than once. This study tries to design a light guiding shelf with the principle of reducing the amount of reflection so that the light received by the space is not reduced too much. This research will use the Sahid Sudirman Center as a case study building. The method used in this research is the experimental method. The hypothesis in this study is that buildings with light guiding shelf produce better and more uniform lighting quality than buildings with conventional light shelf. The data will be taken using the Dialux software to get data on the intensity of daylight on the building. The results showed that the conventional light shelf only had the best performance on uniformity of daylight at 12.00. While the light guiding shelf has the best performance on all criteria, that sDA350-6650, light uniformity, light contrast and DGP at 08.00 and 16.00. In addition to being able to meet the best daylighting quantity performance, the light guiding shelf is also able to produce good daylighting quality performance. So overall, light guiding shelf has better lighting performance than conventional light shelf, so the hypothesis in this study is accepted.Â