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All Journal International Journal of Applied Power Engineering (IJAPE) Jurnal Teknik Nature: National Academic Journal of Architecture Journal of Environment and Sustainability JAMBURA Journal of Architecture Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) Journal Of Building Architecture Journal of Architecture, Research and Innovation
Pratiwi, Niniek
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

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The application potential of net zero energy building using rooftop photovoltaics case study of apartments in Gorontalo Province Djafar, Abdi Gunawan; Pratiwi, Niniek; Mohamad, Yasin; Zhai, Zhiqiang John
International Journal of Applied Power Engineering (IJAPE) Vol 14, No 3: September 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v14.i3.pp743-751

Abstract

Gorontalo Province is one of the developing regions in Indonesia. The province has been actively building apartments since 2009. The construction increases population density and energy use intensity. Consequently, demand for electricity power rises. Renewable energy such as rooftop photovoltaics has the potential as a power source for the apartments, considering the abundant solar radiation in Gorontalo which is located near the equator line. Three apartments representing three levels of the inhabitant’s income are selected as study case for the application of photovoltaic (PV) on roof to achive net zero energy building. Simulation of PV energy to power the buildings is conducted using photovoltaic geographical information system (PVGIS). By utilizing monthly electrical bill data, it is found that PV on roof is sufficient to cover the building energy demand and achieve net zero energy building (NZEB). However, there is uncertainty of the fluctuation of energy demand due to the tenant’s energy consumption behaviour. The consumption intensity is limited only by the installed power on each apartment unit. PV on roof alone is unable to provide the need if it is employed to power the unit to the maximum extent.
Pre-Feasibility Evaluation of the Eco-Cooler Model Made of Waste for Hot Humid Climates Pratiwi, Niniek; Ernawati
Jurnal Teknik Vol 21 No 2 (2023): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v21i2.405

Abstract

Based on the results of a survey conducted by the Ministry of Energy and Mineral Resources in 2018 on commercial buildings, the largest energy-using equipment of each commercial building is air conditioning equipment with an average energy use of over 62%. Therefore, energy-saving efforts related to space cooling will have a significant impact on energy-saving efforts in the world. One way is to use the wind catcher method, namely Eco-Cooler. On the other hand, based on data from the National Waste Management Information System in 2021, waste generation in Indonesia reached 30,881,803.15 tons per year. So this research aims to find the lightest eco-cooler material that can withstand the weather using composite materials from waste. This research uses an experimental method by making an eco-cooler prototype using processed waste materials such as wood powder, corn cobs, plastic, and sand. Then 2 types of sizes, namely the outlet diameter (D1A) of 40 cm, and the inlet diameter (D2A) of 20 cm, while the second size is the outlet diameter (D1B) is 30 cm, and the inlet diameter (D2B) is 15 cm. After molding, the eco-cooler was then weighed and observed for a month to see its resistance to weather where the weather at that time was quite fluctuating. The parameters tested in this study were material weight and weather strength in the humid tropical climate. From the results of this study, it is found that the eco-cooler with sawdust material has the lightest weight of 16 kg for a diameter of 40 cm and 15 kg for a diameter of 30 cm. Meanwhile, the heaviest material is sand with a weight of 29 kg for a diameter of 40 cm and 23 kg for a diameter of 30 cm. In terms of durability, sawdust and sand are the most resistant to weather. Therefore, it can be concluded that the lightest and most weather-resistant eco-cooler material for hot humid climates is eco-cooler from wood powder material.
Evaluasi Kenyamanan Termal Courtyard Fakultas Teknik Universitas Negeri Gorontalo Rahmayanti, Rahmayanti; Mutmainnah, Nur; Pratiwi, Niniek
JARI: Journal of Architecture, Research and Innovation Vol. 2 No. 1 (2025): Desember
Publisher : Program Studi Teknik Arsitektur, Fakultas Teknik, Universitas Ichsan Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37195/jari.v2i1.1739

Abstract

Thermal comfort is a fundamental parameter in architectural performance, especially in tropical climate regions. This study presents a thermal evaluation an outdoor open courtyard in the Faculty of Engineering, Universitas Negeri Gorontalo. Field measurements were conducted for 60 minutes using air temperature, black-globe radiation temperature, relative humidity, and wind speed as primary indicators. Results show that the courtyard exceeded comfort tolerance: average temperature reached 46 , global radiation >47 , humidity ranged from 32–48 %, and wind speed was near stagnant. The analysis reveals that direct solar exposure, heat-retentive paving, and blocked cross-ventilation due to building mass arrangement are the main contributors to outdoor thermal stress.
PERANCANGAN KAMPUS POLITEKNIK PERTANIAN KOTAMOBAGU DENGAN PENDEKATAN ARSITEKTUR BIOFILIK Mokoginta, Fahrain Septianda; Pratiwi, Niniek; Mahanggi, Muh. Rizal
Journal Of Building Architecture Vol. 3 No. 2 (2025): JOURNAL OF BUILDING ARCHITECTURE (OKTOBER)
Publisher : Program Vokasi Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56190/jba.v3i2.59

Abstract

Menurut data BPS tahun 2023, Kota Kotamobagu dan Kabupaten di Bolaang Mongondow Raya memiliki potensi investasi signifikan terutama dalam sektor pertanian yang melibatkan 73.133 petani. Namun partisipasi pemuda masih rendah, hanya mencapai 1% dari total petani. Diperlukan peningkatan kontribusi dalam sektor pertanian melalui peningkatan pendidikan, khususnya pada pendidikan pertanian untuk memajukan sumber daya manusia. Saat ini, Kota Kotamobagu dan Bolaang Mongondow Raya menghadapi kendala dengan kurangnya perguruan tinggi yang menawarkan program pendidikan dan pelatihan di bidang pertanian. Oleh karena itu, perlu didirikan politeknik pertanian untuk mendorong kualitas pendidikan dan memajukan sektor pertanian. Selain itu, kesadaran akan hubungan manusia dengan alam menjadi faktor penting dalam proses pembelajaran yang dapat ditingkatkan melalui pendekatan arsitektur biofilik. Tujuan dari perancangan ini adalah menciptakan sebuah kampus politeknik pertanian yang memenuhi kebutuhan ruang civitas academika dan mencerminkan identitas sebagai pusat pendidikan pertanian dengan penekanan pada konsep arsitektur biofilik. Desain bangunan politeknik pertanian di Kota Kotamobagu yang mengintegrasikan konsep biofilik diharapkan dapat menciptakan lingkungan yang mendukung pembelajaran yang nyaman dan mempererat keterkaitan manusia dengan alam. Penelitian ini menggunakan metode kualikatif, pengumpulan data dilakukan melalui studi literatur, studi lapangan, dan studi banding untuk membentuk dasar konsep perencanaan dan perancangan. Penerapan arsitektur biofilik dalam desain kampus ini memiliki novelty pada integrasinya sebagai strategi pedagogis, peningkatan kesehatan mental civitas akademika, serta pendekatan kontekstual terhadap iklim tropis, sehingga kampus tidak hanya berfungsi sebagai ruang pendidikan, tetapi juga sebagai ekosistem hidup yang mendukung pembelajaran berkelanjutan. Melalui analisis program ruang dan konsep fisik bangunan, diharapkan politeknik pertanian Kotamobagu dapat menjadi lokomotif bagi kemajuan pendidikan dan ekonomi di sektor pertanian.
Co-Authors Abdi Gunawan Djafar Arifin, Sri Sutarni Bayu, Bayu Setiawan Berni Idji Ernawati Ernawati Ernawati Heryati Heryati Kaharu, Arlan Lakoro, Miranti Lydia Surijani Tatura Mahanggi, Muh. Rizal Mile, Fitrah Zahri Ramadhan Mokoginta, Fahrain Septianda Mutmainnah, Nur Nurmuhammad, Andi Annisa Paca, Nurhadiningsi Rahmayanti Rahmayanti Saman, Satar Sekar Arum, Sekar Tatura, Lydia S. Yasin Mohamad Zhai, Zhiqiang John