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All Journal Jurnal Fisika Unand Jurnal GEOSAPTA Atrium : Jurnal Arsitektur Syntax Idea Jurnal Rekayasa Lingkungan Jurnal Himasapta BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Magnetic: Research Journal of Physics and It’s Application Jurnal Penelitian Inovatif Indonesian Community Journal Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Cerdika: Jurnal Ilmiah Indonesia Jurnal Ilmiah Teknik Informatika dan Komunikasi Innovative: Journal Of Social Science Research Journal of Artificial Intelligence in Architecture Jurnal Global Ilmiah Jurnal Teknik Pertambangan (JTP) Diteksi : Jurnal Pengabdian Kepada Masyarakat Nusantara Innovation Journal
Yunida Iashania
Fakultas Teknik, Universitas Palangka Raya, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Physics Public Health Social Sciences Other

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Operational Energy Assessment and Selective Retrofit Strategy for a 24-Hour Cafe Using EDGE-Based Scenario Analysis Sanitha, Onie Dian; Iashania, Yunida; Kristianti, Novera; Rahayu, Elis Sri; Apriliyanti, Nia; Taufiqurahman, Taufiqurahman; Sompotan, Audy Mirelia Wirly; Sihombing, Yusuf Aditya
Journal of Artificial Intelligence in Architecture Vol. 5 No. 1 (2026): Artificial Intelligence for Human-Centric Performance: Integrating Neuroarchite
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/jarina.v5i1.12400

Abstract

This research evaluates the energy performance of a 24-hour cafe in a tropical context using the EDGE decision-support platform. Cafe Oregano in Palangka Raya, Indonesia, was selected as a case study due to its continuous operation, refrigeration systems, and kitchen appliances, which generate persistent internal loads that challenge conventional assumptions about commercial building energy use. The EDGE baseline simulation produced a very high Energy Performance Index (EPI) of 778.53 kWh/m²/year, corresponding to a 32.50% relative performance, indicating a mismatch between standardised IFC assumptions and actual cafe operational behaviour. After parameter refinement and validation using monthly electricity bills, performance improved to 674.55 kWh/m²/year (+13.36%), reducing annual electricity consumption from 420,858 to 275,215 kWh. Sensitivity analysis showed that HVAC efficiency and zoning delivered the greatest performance gains, followed by envelope and lighting improvements, while refrigeration loads remained structurally dominant. To evaluate real-world feasibility, a selective retrofit scenario based on local Indonesian market costs was developed. The resulting package—roof and partial wall insulation, LED retrofitting, high-efficiency 1 HP HVAC replacement, and basic zoning controls—requires an estimated capital investment of IDR 310–320 million and achieves a simple payback of 1.5–2 years. Overall, the findings confirm that while EDGE effectively identifies relative performance trends, achieving meaningful energy efficiency in cafe typologies requires calibrated scenarios, realistic operational assumptions, and economically grounded interventions.
Analisis Efektivitas Filtrasi Sederhana terhadap Kualitas Fisik-Kimia Air Sumur Bor dan Sungai Kahayan untuk Mitigasi Dampak Lingkungan Iashania, Yunida; Agustiani , Reni; Fridtriyanda, Asri; Waruwu, Valentinus; Enzelina Silaban, Yunita
Jurnal Fisika Unand Vol 15 No 2 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.15.2.140-146.2026

Abstract

The purpose of this study was to determine the effectiveness of the filter before and after filtration so that the water complies with water quality standards. The research method used a quantitative method with a field and laboratory experimental approach to test changes in air quality after going through a filtration process using a simple system designed. Based on research obtained from the laboratory, there was an increase in the effectiveness of well water quality of 95.65%, dissolved manganese (mn) of 83.87%, the color looked clearer with an increase of 68.47%, dissolved iron (Fe) of 14.63%, air acidity (pH) of 7.16%, nitrite (NO2) of 1.43%. While for river water the TSS value was 40.82%, dissolved oxygen (DO) of 121.03%, chemical oxygen demand (COD) of 14.16%, biological oxygen demand (BOD) of 12.82% and an increase in pH of 4.17%. The filter designed in this study is effective for use in water wells because it is able to filter and improve the quality of groundwater because it complies with water quality standards, namely PP No. 22 of 2021, while for river water it is still less effective in addressing air quality, especially in TSS and BOD values.
ANALISIS KUALITAS DAN INDEKS PENCEMARAN AIR PERMUKAAN PADA KOLAM BEKAS PENAMBANGAN PASIR DI KELURAHAN SEI GOHONG KECAMATAN BUKIT BATU KOTA PALANGKA RAYA PROVINSI KALIMANTAN TENGAH: ANALYSIS OF QUALITY AND INDEX OF SURFACE WATER POLLUTION IN EX-SAND MINING POND IN SEI GOHONG VILLAGE YOSINDO YOHANES; SAPTAWARTONO; YUNIDA IASHANIA; FERRA MURATI; YOS DAVID INSO
JURNAL TEKNIK PERTAMBANGAN Vol. 26 No. 1 (2026): Februari 2026
Publisher : JURUSAN TEKNIK PERTAMBANGAN UPR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jtp.v26i1.19884

Abstract

Aktivitas penambangan bahan galian pasir banyak dilakukan di daerah jalan lintas Palangka Raya Tangkiling. Hal ini menyebabkan terbentuknya kolam bekas penambangan pasir tersebut yang berdampak pada perubahan bentang alam dan ekosistem perairan di lingkungan sekitar. Tujuan analisis  kualitas dan indeks pencemaran air permukaan pada kolam bekas penambangan pasir di kelurahan sei gohong ini dilakukan untuk menganalisis perbandingan kualitas air lampiran VII Peraturan Pemerintah Nomor 22 Tahun 2021 tentang baku mutu air dan menganalisis tingkat pencemaran air yang ada pada permukaan kolam bekas penambangan pasir. Metode penelitian yang digunakan adalah metode sampling lapangan langsung (kuantitatif). Berdasarkan hasil analisis kualitas air pada  kolam bekas penambangan pasir, diperoleh bahwa parameter pH, Cu, Fe, dan BOD tidak memenuhi  baku mutu sesuai dengan Peraturan Pemerintah Nomor 22 Tahun 2021 Lampiran IV untuk Kelas III.  Sementara   itu, parameter TSS, DO, TDS, dan Mn memenuhi standar baku mutu, dan parameter COD memenuhi baku mutu, kecuali pada kolam P3. Hasil perhitungan indeks pencemaran menunjukkan nilai IP 2,3 yang berarti kondisi kualitas air berada dalam kategori tercemar ringan. Kata kunci: Kualitas Air, Indeks Pencemaran, Penambangan Pasir.
Co-Authors Agustiani , Reni Agustina, Lastiur Al Fiah. B, Dwi Ayu Ambeng, Rafvie Resido Ambeng, Ravie Resido Apriliyanti, Nia Aqli, Yusuf Kavin Ariyantho, Dody Asri Fridtriyanda Audy Mirelia W.S Betrio L, Prayoga Bryan Faith Situmorang Deddy Tanggara Dedy Jupiter Sihombing Enzelina Silaban, Yunita Fahrul Indrajaya Fahrul Indrajaya Fahrul Indrajaya Faradila, Naila Fatma Sarie Ferdinandus Ferdinandus FERRA MURATI Ferra Murati Fidayanti, Neny Fransisco, Theo Gabriela Elsandika Hendra Wiryanto, Yustinus I Dewa Made Prawindya Kumara I Putu Putrawiyanta Ibnu Sina Indrajaya, Fahrul Inso, Yos David Iqramina Sista Dewi keliat, egiandre Khairi Kristianti, Novera Luwyk Djanas Usup, Hepryandi Melinda, Sena Nababan, Berkat Obniel Nababan, Immanuel Nainggolan, Willy Kusuma Neny Sukmawatie Ni Putu Ayu Indyastika Novalisae Noveriady Nuansa Mare Apui Ganang Onie D. Sanitha Onie D. Sanitha Onie Dian Sanitha Onie Dian Sanitha Pebryanto, Pebryanto Pramana, Andika Prayoga, Aditia Rahayu, Elis Sri Reni Agustiani Reni Agustiani, Reni Rivaldo Tarigan, Rio S. Duna, Benny Irawan Salsa Ayudhia Pratama Samsul Arifin Saptawartono Saptawartono Saptawartono, Saptawartono Sari Pratiwi Sihombing, Yusuf Aditya Silaban, Lamture Simamora, Andre Sinaga, Elme Romayani Sista Dewi, Iqramina Sofi Miftah Alrasyid Sompotan, Audy Mirelia Wirly Sukmawatie, Neny Sylvana Anethe Taruna, Yulian Taufiqurahman Taufiqurahman, Taufiqurahman Theo Fransisco Theo Fransisco Theo Fransisco Utari, Pradita Valentinus Waruwu Virgiyanti, Lisa Waruwu, Valentinus Wijaya, Dody Ariyantho Kusma Wijaya, Dody Ariyantho Kusuma Wiryanto, Yustinus Hendra Yakub Reba, Isai Yohanes, Yosindo Yosindo Yohanes Yossa Yonathan Hutajulu Yunita Enzelina Silaban Yusias Andri Yusuf Aditya Sihombing Zebua, Augusyoellisman