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All Journal ARTEKS : Jurnal Teknik Arsitektur
Nurul Aini
Universitas Merdeka Malang
Civil Engineering, Building, Construction & Architecture

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Assessing artificial lighting performance using DIALux in heritage buildings Sirly Intan Sayekti; Respati Wikantiyoso; Nurhamdoko Bonifacius; Erlina Laksmiani Wahjutami; Nurul Aini
ARTEKS : Jurnal Teknik Arsitektur Vol 10 No 3 (2025): ARTEKS : Jurnal Teknik Arsitektur | September 2025 ~ December 2025
Publisher : Program Studi Arsitektur Fakultas Teknik Universitas Katolik Widya Mandira

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30822/arteks.v10i3.4442

Abstract

This study aims to turn on artificial outdoor lighting in the State Electricity Company (PLN) Building as a cultural heritage building in the Kayutangan Heritage Area using DIALux Evo simulation with input measurements and observations in the field. This simulation assesses the average lighting level, lighting uniformity, and energy efficiency, with comparisons to national and international standards. The focus of the study includes the average illumination value, lighting uniformity, and glare assessment which will later be developed into the principle of intelligent lighting in preserving cultural heritage buildings. Based on the simulation results, it was found that most areas of the building have lighting levels below SNI standards, especially in outdoor/pedestrian areas (horizontal elements) and facades (vertical elements). The overlay graph shows a significant disparity in light distribution. These results indicate the need for lighting design interventions in pedestrian areas and building facades. The development of lighting design can later be in accordance with considering aspects of surface materials, functionality, energy efficiency, and most importantly, it can support aspects of preserving cultural heritage buildings. This research is expected to be the basis for developing sustainable lighting strategies in cultural heritage buildings, especially in the Kayutangan Area.
The UHI phenomenon and the potential for buffer zone development in Kayutangan heritage corridor Respati Wikantiyoso; Agung Murti Nugroho; Nurul Aini; Sari Mawaddahni; Aditya Galih Sulaksono
ARTEKS : Jurnal Teknik Arsitektur Vol 11 No 2 (2026): ARTEKS : Jurnal Teknik Arsitektur | April 2026 ~ June 2026
Publisher : Program Studi Arsitektur Fakultas Teknik Universitas Katolik Widya Mandira

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30822/arteks.v11i2.4830

Abstract

The rising temperature of the Kayutangan Heritage Corridor (KHC) poses a risk to the sustainability of its historical value and the comfort of its microclimate. The UHI phenomenon in KHC development is vulnerable to the decline of historical value and microclimate quality. This study aims to assess the potential of the Brantas River Watershed as a buffer zone for KHC development. The method used is a three-stage analysis: first, land surface temperature (SST) data analysis to identify the distribution of hot and cold spots; second, direct surface temperature measurements to validate the LST; and third, Computational Fluid Dynamics (CFD) simulation of the existing thermal conditions of the KHC and its buffer zone. The LST distribution pattern forms the basis for formulating a UHI mitigation model. The CFD simulation results indicate that the Brantas River Watershed, which borders the KHC, has the potential to serve as a buffer zone for Kayutangan development. This mitigation strategy enables Kayutangan development to transform into a more resilient area through integration with its buffer zone.
Outdoor thermal comfort performance in urban heat island mitigation: A Simulation-Based assessment in a commercial district using ENVI-met Miftahul Huda; Respati Wikantiyoso; Nurul Aini; Pindo Tutuko; Erna Winansih
ARTEKS : Jurnal Teknik Arsitektur Vol 11 No 2 (2026): ARTEKS : Jurnal Teknik Arsitektur | April 2026 ~ June 2026
Publisher : Program Studi Arsitektur Fakultas Teknik Universitas Katolik Widya Mandira

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30822/arteks.v11i2.5132

Abstract

Outdoor thermal discomfort in commercial districts presents a critical challenge in tropical urban environments, where elevated air temperatures and intense solar radiation limit the usability and comfort of open spaces. This study evaluates the effectiveness of Urban Heat Island (UHI) mitigation strategies in enhancing outdoor thermal comfort within a commercial district through ENVI-met simulations. Four intervention scenarios were developed and compared against existing conditions, encompassing structural-based, vegetation-based, surface material–based, and integrated approaches. Simulations were conducted for the hottest day of the dry season, with thermal comfort assessed at pedestrian height (1.4 m) using the Physiological Equivalent Temperature (PET) index. Structural interventions produced an average PET reduction of 1.24 K, demonstrating localized cooling effects, whereas vegetation-oriented strategies achieved the most substantial improvement, reducing average PET by up to 3.91 K. In contrast, material-based interventions exhibited the least efficacy, yielding a maximum average PET reduction of only 0.32 K and even contributing to increased PET during daytime hours due to reflected solar radiation. The combined intervention scenario delivered a more balanced outcome, with average PET reductions reaching 2.60 K. Despite these interventions, PET values largely remained within the “very hot” category, underscoring the necessity for radiation-sensitive urban design approaches that prioritize vegetation-centric mitigation strategies.
Co-Authors Aditya Galih Sulaksono Agung Murti Nugroho Erlina Laksmiani Wahjutami Erna Winansih Miftahul Huda Nurhamdoko Bonifacius Pindo Tutuko Respati Wikantiyoso Sari Mawaddahni Sirly Intan Sayekti