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All Journal Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Jurnal Median Arsitektur dan Planologi
Enos Karapa
Universitas Cenderawasih
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Social Sciences Transportation

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STRATEGI PENGELOLAAN WILAYAH PESISIR KABUPATEN SARMI DALAM UPAYA MITIGASI TSUNAMI Danang Pamuji; Prihananto Setiadji; Enos Karapa
Jurnal MEDIAN Arsitektur dan Planologi Vol 13 No 1 (2023): Jurnal Median
Publisher : Universitas Sains dan Teknologi Jayapura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58839/jmap.v13i1.1248

Abstract

Distrik Sarmi merupakan ibukota Kabupaten Sarmi yang mempunyai tatanan tektonik cukup kompleks. Letak geografis yang berada dekat dengan zona subduksi utara Papua di Samudera Pasifik membuat Distrik Sarmi terindikasi ancaman tinggi bencana tsunami. Kepadatan penduduk serta aktivitas perekonomian di Distrik Sarmi akan menambah tingkat kerentanan jika suatu saat terjadi bencana tsunami. Penelitian ini bertujuan untuk mengidentifikasi tingkat kerentanan bahaya tsunami dan menentukan strategi pengelolaan pesisir untuk mitigasi tsunami di Distrik Sarmi dengan menggunakan metode AHP. Perangkat lunak COMCOT (Cornell Multi-grid Coupled Tsunami Model) digunakan untuk melakukan pemodelan tsunami dengan sumber data sekunder dari historis kejadian gempa bumi dan tsunami di Papua. Dengan skenario sumber gempa bumi kekuatan maksimal M8,7, COMCOT memodelkan waktu tiba gelombang tsunami di pesisir antara 5 – 20 menit dan jarak landaan dapat mencapai maksimum 3 Km ke daratan. Dari hasil peta bahaya tsunami di Distrik Sarmi, 4 kampung/kelurahan berpotensi terkena landaan gelombang tsunami dengan run up sampai dengan 6 meter dan strategi pengelolaan pesisir dalam mitigasi tsunami di Distrik Sarmi harus berwawasan lingkungan dengan alternatif strategi berupa penanaman hutan mangrove.
Analisis Keandalan Pembangkit Listrik Tenaga Mini Hidro Orya-Genyem Berdasarkan Load of Loss Probability Anne Sihombing; Joni Joni; Yane Ansanay; Enos Karapa; Herbert Innah; Prihananto Setiadji; Johni Jonatan Numberi; Tiper K. M. Uniplaita
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa dan Inovasi Volume 5 Nomor 2 Tahun 2023
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v5i2.5128

Abstract

Electricity is crucial for supporting development, the economy, and human well-being, thus leading to an increasing demand for electrical energy. Therefore, power plants are planned and constructed to be as economically viable as possible. In line with the principles of affordability, security of supply, and acceptability, to ensure long-term capacity demand and reliability. The reliability of the power plant is measured using the Load of Loss Probability (LOLP) index, which assesses the probability of components functioning satisfactorily to meet demand. The objective of this research is to analyze the reliability of PLTM Orya-Genyem based on the Load of Loss Probability (LOLP) index. The research methodology is qualitative, commencing with the collection of secondary data, followed by LOLP calculations to obtain reliability information. LOLP index for PLTM Orya-GGenyem is 0,4204%, equivalent to 1,5346 days per year, exceeding the PLN standard of 1 day per year. This indicates a lack of reliability in the power plant. Research findings reveal that daily power demand increases by 0,054 MW for every 1% increase in time. Assessment indicates that peak load surge factor is not the cause of the high LOLP value in PLTM Orya-Genyem. Instead, outages are the cause. The assessment shows that there were 72 disturbances of maintenance outages for PLOG-TA-01 and 145 disturbances of system adjustment outages for PLOG-TA-02. Other outages that happen include low water elevation, water storage duration, floods (accumulated debris), transmission work, blackouts, network disturbances, forced outages, planned outages, sedimentation dredging, water drainage, water filling, performance testing, and maintenance during plant operation.
Potensi Pemanfaatan Sumber Energi Alternatif Gas Metana untuk Pembangkit Listrik 3 MW Menggunakan Pemodelan Landgem (Studi Kasus: TPA Koya Koso Kota Jayapura) Royend F. Samosir; Johni Jonatan Numberi; Enos Karapa; Herbert Innah; Yane Ansanay; Prihananto Setiadji; Tiper K. M. Uniplaita
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa dan Inovasi Volume 5 Nomor 2 Tahun 2023
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v5i2.5158

Abstract

The volume of waste will continue to increase with increasing time, population, and economic growth in a city, district, or province. The city of Jayapura, as the center of the economy of the land of Papua, is the same way. The Koya Koso TPA management system for Jayapura City is currently landfill control, where the waste that has been collected at the TPA is stockpiled using layers of soil so that the piles are increasing in number day by day and causing problems including air pollution by methane gas, CO2, and other gases and limited land, thereby reducing the age of TPA Koya Koso Jayapura City. This study aims to determine the potential content of methane gas by modeling it using Landgem software and the potential capacity of electrical energy that can be generated. The results showed that the potential content of methane gas generated from Landgem modeling is 13,134,026 m3/year, or 8,762 tons/year, resulting in a potential capacity of electrical energy of 2,797.22 kW, or 2.8 MW.
Pencemaran Airtanah Analisis Potensi Pencemaran Airtanah Di Daerah Dok IV Kota Jayapura: Kualitas Airtanah, Intrusi Air Laut enos karapa
Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Vol. 5 No. 2 (2023): JPPL, September 2023
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/jppl.v5i2.1979

Abstract

Pencemaran airtanah merupakan ancaman yang dapat membahayakan kesehatan manusia. Oleh karena itu diperlukan informasi yang benar terhadap sumber airtanah yang dimanfaatkan oleh masyarakat. Melihat perkembangan masyrakat disekitar Daerah Dok IV yang sangat pesat serta pemanfaatan airtanah yang cukup besar, maka perlu dilakukan penyelidikan tentang airtanah didaerah ini. Penyelidikan airtanah ini bertujuan untuk menggambarkan kondisi hidrogeologi, untuk mengetahui unsur-unsur kimia yang menjadi beban pencemar dalam airtanah serta untuk mengetahui potensi intrusi airlaut. Metode penyelidikan yang dilakukan adalah metode pemetaan hidrogeologi yaitu analisa daerah imbuhan dan resapan, analisa landaian hidrolik serta geometri sumur. Penyelidikan bawah permukaan digunakan metode pendugaan bawah permukaan dengan Ground Penetrating Radar (GPR). Untuk penyelidikan kimiawi dilakukan dengan pengambilan sampel airtanah dan dianalisa di laboratorium kesehatan daerah Jayapura. Hasil yang ditemukan menunjukan bawah ada bebera unsur-unsur kimiawi yang melampaui nilai baku mutu. TDS meningkat pada sumur 1 dan 2 , Besi meningkat pada sumur 4, coli tinja pada sumur 1 dan coliform pada semua sumur. Berdasarkan perhitungan empiris terhadap resapan air ditempat ini adalah 4.069.391,723 m3. Keberadaan airlaut berada pada kedalaman 30 m, sehingga belum memberikan efek intrusi terhadap airtanah. Kata kunci: pencemaran, airtanah, hidrogeologi, intrusi
Analysis of Natural Convection Heat Transfer in Barapen Cooking in Papua Johni Jonathan Numberi; Pither Palamba; Agustinus Giai; Kristofel Rumar; Joni; Yane Ansanay; Obet T. Ranteallo; Samuel P. Siregar; Ruben M. Kaiwai; Selyus Rantepulung; Anastasia Sri Werdani; Nourish Griapon; Yohanis Wanane; Janviter Manalu; Apolo Safanpo; Enos Karapa; Endang Hartiningsih; Marthen Liga; Oscar O. Wambrauw; Akbar Silo
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa dan Inovasi Volume 6 Nomor 2 Tahun 2024
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v6i2.6562

Abstract

Barapen, a cooking tradition in various indigenous Papuan communities. To date, various social science studies have been conducted to examine social values, business economics, and political economy. While research in the aspects of applied science has yet to be conducted to study the phenomenon of heat transfer by natural convection from hot stones to food in cooking packs, this research was conducted. The purpose of this research is to study the phenomenon of heat transfer by natural convection from hot stones to food in cooking packs. In this study, a square-shaped artificial pool (260 cm x 210 cm x 50 cm) with white batah stone walls was used to cook food in a barapen. On the four walls, a type K thermocouple is inserted to measure the temperature at 3 layers, which will be the object of research. The ingredients are vegetables, sweet potatoes, and chicken meat that has been cut and stoned. As a discussion, the temperature gradient between layers occurs due to the difference in the amount of volumetric heat against time in each layer. The difference in the amount of heat in each layer is due to the difference in the density of the hot vapor trapped in each layer. Thus, it can be said that the cooking of food in Barapen occurs due to natural heat convection.
Optimization of Savonius Turbine Performance with Variations in Blade and Shaft Spacing on the Coast of Sarmi Regency, Papua Province Johni Jonatan Numberi; Joni; Obed Rante Allo; Nourish C. Griapon; Yane A. Ansanay; Lazarus Ramandei; Wilfriedf Wanane; Rombe Allo; Janviter Manalu; Apolo Safanpo; Endang Hartiningsi; Marthen Liga; Enos Karapa; Yosef Lefaan; Prihananto Setiadji; Herbert Innah
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa dan Inovasi Volume 6 Nomor 2 Tahun 2024
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v6i2.6587

Abstract

The use of wind energy as one of the producers of electrical energy is done by converting mechanical energy into electrical energy from wind turbines, one of which is the savonius wind turbine. Savonius wind turbines in use are able to work at low wind speeds. This study aims to evaluate the potential of wind energy that can be generated by optimization in savonius wind turbines by measuring the power generated by varying the gap distance between Balde and turbine shafts and analyzing the most optimal power as a source of power generation on the coast of Sarmi Regency, Papua Province. The analysis method in this study is field surveys, wind speed measurements, power optimization, BHP and tool efficiency carried out with variations in the distance between the blade and turbine shaft, namely 5 cm, 10 cm and 15 cm. The results of this study stated that the most optimal and stable results on the power generated by the turbine as well as the BHP value and the best tool efficiency were a distance variation of 15 cm with an average power value produced (P0) of 15.55 Watts, an average BHP value of 0.56 Watts and an average efficiency value of 7.59%.
Co-Authors Agustinus Giai AKBAR SILO Anastasia Sri Werdani Anne Sihombing Danang Pamuji Endang Hartiningsi Endang Hartiningsih Herbert Innah Janviter Manalu Johni J Numberi Joni Kristofel Rumar Lazarus B. Ramandey, Lazarus B. Marthen Liga Nourish C. Griapon Nourish Griapon Obed Rante Allo Obet T. Ranteallo Oscar O. Wambrauw Pither Palamba Prihananto Setiadji Rombe Allo Royend F. Samosir Ruben M. Kaiwai Safanpo, Apolo Samuel Parlindungan Siregar Selyus Rantepulung Tiper K. M. Uniplaita Wilfriedf Wanane Yane A. Ansanay Yane Oktovina Ansanay Yohanis Wanane Yosef Lefaan