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All Journal Rekayasa Mesin Musamus Journal of Electro & Mechanical Engineering Jurnal Gema Ngabdi Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi G-Tech : Jurnal Teknologi Terapan Jurnal ELIPS (Ekonomi, Lingkungan, Infrastruktur, Pengembangan Wilayah, dan Sosial Budaya)
Johni J Numberi
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Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Transportation

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Analisis Karakteristik Parkir terhadap Kebutuhan Ruang Parkir di Pasar Central Hamadi Kota Jayapura Amos Numberi; Petrus Bahtiar; Johni J. Numberi
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 3 Nomor 1 Tahun 2021
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v3i1.1779

Abstract

This study aims to determine the capacity needs of the SRP in Hamadi Central Market, Jayapura City. The data required in the form of primary data and secondary data, quantitative and qualitative descriptive analysis approaches to analyze the characteristics of vehicle parking against the needs of SRP in Hamadi Central Market, Jayapura City. The results of the analysis of the parking volume for 92 vehicles and 164 motorcycles, the accumulated parking for 326 vehicles and 301 motorcycles, the parking duration for cars and motorbikes ranged from 1-2 hours, the parking capacity for cars was 39 vehicles / hour and for motorbikes 19 vehicles / hour, 88.3% cars and 90.4% motorbikes, 0.83 car parking turnover rates for cars / parking lots and motorbikes 1.42 motorbikes / parking lots, parking availability 267 vehicles / 9 hours and 119 motorbikes / 9 hours. The result of combining the analysis method, the need for a 46 SRP car and an 88 SRP motorbike means that it exceeds the available SRP. To answer this, an arrangement of the SRP for the car was carried out, so that the SRP for the car was sufficient because the planned SRP was 61 SRP. Meanwhile, to answer the needs of motorbike SRP, which is to move the parking lot into the market / building area, so that the SRP for motorbikes is sufficient because the SRP planned is 108 SRP. The parallel parking pattern is recommended for SRP cars and motorbikes with an angle of 90º.
Kajian Potensi Angin Laut Sebagai Sumber Energi Terbarukan Pembangkit Listrik Pulau Kecil di Pesisir Utara Provinsi Papua: Study of Sea Wind as A Renewable Energy Source of Power Plan for Small Islands on The North Coast of Papua Province Johni Jonatan Numberi; Samuel P. Siregar; Tiper K. M. Uniplaita; Rombe Allo; Anastasya S. Werdhani; Joni Joni; Pither Palamba; Marthen Liga; Theresia W. Oktaviani; Matius R. Manalu
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.v5i2.4920

Abstract

Papua province has nine small islands that are inhabited, but there is no access to electricity on these islands. The solution is the use of sea wind as a source of energy for a small power plant. This study aims to determine the potential of sea wind as an alternative source of electrical energy on the north coast of Papua Province. Data Measurement is carried out using an HP-866B anomometer on a hill near the coast to maximize the sea wind. There are two methods used in this research: the minimum-maximum value to determine the wind speed range and linear regression to determine the distribution pattern of the wind. The range of the sea wind is 0.2–6.18 m/s. If the minimum speed is limited to 1.6 m/s, then the range of kinetic energy is 5.59–322.22 Joules/s, mechanical power is 5.59–322.22 Watts, and actual power is 0.57–33.13 Watts. Meanwhile, the pattern shows that the sea wind from the north coast of Papua Province blows with two trends: constant and increasing, specifically in the afternoon and evening. Based on that, the development of a wind power plant on the north coast of Papua Province can be carried out using a multi-turbine system to increase the actual power that can be obtained.
Desain Turbin Pelton Kapasitas 26 kW pada Pembangkit Listrik Tenaga Mikrohidro (Studi Kasus: Kampung Nehibe): A Design of Pelton Turbine with Capacity of 26 kW for Micro-Hydro Power Plant (Case Study: Nehibe Village) Evenly Evenly; Pither Palamba; Marthen Liga; Johni Jonatan Numberi; Endang Hartiningsih; Thobby Wakarmamu; 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.v5i2.5126

Abstract

The need for electrical energy in Nehibe village is currently increasing along with the increase in population and new households. The demand for electricity in this village reaches 18 kW, with an average power per household of 450 VA. The problem is that Hachakwa Nehibe Micro Hydro Power Plant (PLTMH), which is very close to the village, has a capacity of only 10 kW. Based on that problem, this study aims to design a peltor turbine with two nozzles for the new 26 kW PLTMH. This power plant uses the water from the Tena Mroway and Yora Mroway rivers, which are located 2 km from the end of the village, as a new source of energy. This design of the turbine is based on the mathematical equations, measurement data of the head, and the flow of the rivers. This research shows that the Pelton turbine with two nozzles (nj), 0.032 meters of jet diameter (Dj), 0.330 meters of runner diameter (Dr), 0.096 meters of bucket diameter, and 21 buckets can produce 26 kW of power with 60 ltr/sec of river flow and 77 meters of head height. This specialization can be used to develop the new PLTMH in Nahibe Village.
Analisis Keandalan Pembangkit Listrik Tenaga Mini Hidro Orya-Genyem Berdasarkan Load of Loss Probability: Reliability Analysis of Orya-Genyem Mini Hydroelectric Power Plant Based on 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): Methane Gas Alternative Energy Resource Utility Potential for 3 MW Power Plant using Landgem Modeling (Case Study: 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.
Analisis Konsumsi Listrik di Provinsi Papua terhadap Pengaruh Investasi, Belanja Pengeluaran Daerah, Indeks Pembangunan Manusia dan Jumlah Penduduk: Analysis of Electricity Consumption in Papua Province to the Impact of Investment, Regional Expenditures, Human Development Index and Population Yosef Lefaan; Edwin Ginting; Johni Jonatan Numberi; Endang Hartiningsih; Maran Gultom; Thobby Wakarmamu; 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.v5i2.5189

Abstract

Electricity consumption is an important factor in driving economic growth. Increasing economic growth will increase electricity consumption, and vice versa. The effect of the growth of electricity consumption on economic growth in Papua Province is a goal to be known through this research. To achieve this goal, secondary data for 2012–2022, sourced from the Central Bureau of Statistics for Papua Province and PT. PLN (Persero) Papua and West Papua regions, are processed using a quantitative approach and multiple regression analysis model. This secondary data includes investment value, regional expenditure, the human development index, and population, which is an independent variable. While the electricity consumption data is a dependent variable. The results of the study show that simultaneously, all independent variables have a significant effect on the dependent variable. The value of investment, regional expenditures, and the human development index have a positive but not significant effect on increasing electricity consumption. While the population has a positive and significant influence on increasing electricity consumption.
Characteristics of Multi-tier Hybrid Dryer for Drying Corn Grains Rombe Allo; Allo Sarira Pongsapan; David Mangallo; Agustinus; Samuel Parlindungan Siregar; Thomas Pagasis; Anastasia Sri Werdhani; Johni Jonatan Numberi; Pither Palamba; Dionisius Desriadi Banda; Joni
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.v6i2.6370

Abstract

The type of drying device known as a hybrid dryer is a tool that harnesses solar energy and the heat generated by a biomass fuel-powered heat exchanger. This study was conducted to assess the performance of the hybrid dryer by analyzing the parameters of the device itself and the dried material. The research was carried out experimentally using a solar collector and a biomass furnace (as a heat exchanger) to heat the air. The solar collector used consists of 0.35 mm thick, black-painted zinc, coated with 5 mm thick glass, and installed at a 20-degree angle. The heat exchanger pipe used has a diameter of 1.25 inches and is made of galvanized pipe. The tested sample is corn seeds with an initial moisture content of about 24.6%. The experimental results show that in the drying process using a solar dryer, the initial moisture content of 24.8% was successfully reduced to 14% at 5.50 h (rack 1), 6.50 h (rack 2) and 7.00 h (rack 3) with a thermal efficiency of 24.25%. Meanwhile, in the hybrid drying process, the required time is approximately 5.00 h (rack 1), 5.50 h (rack 2) and 6.00 h (rack 3), with a efficiency of the drying equipment used is 21.048±5.690% (hybrid) and 22.706±6.437% (solar).
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 Agnes Supraptiwi Rahayu Agustinus Agustinus Giai AKBAR SILO Akhmad Kadir Aleda Mawena Allo Sarira Pongsapan Allo Sarira Pongsapan Amos Numberi Anastasia Sri Werdani Anastasia Sri Werdhani Anastasia Sri Werdhani Anastasya S. Werdhani Anne Sihombing Arung Lamba David Mangallo Dewi Nurhidayah Dionisius Desriadi Banda Edwin Ginting Endang Hartiningsi Endang Hartiningsih Endang Hartiningsih Enos Karapa Enos Karapa Evenly Evenly Evi Sinaga Fitrine Christiane Abidjulu Fred Andris Waroy Griapon, Nourish Haurissa, Calvion Jean Haurissa, Jusuf Hebert Innah Herbert Innah Johni Siep Joni Karapa, Enos Kristofel Rumar Lazarus Ramandei Manalu, Janviter Maran Gultom Marthen Liga Marthen Liga Matius R. Manalu Mickael Ruben Kaiway Miftah Fariz Prima Putra Monika Gultom Nourish C. Griapon Nourish Christin Griapon Nourish Griapon Obed Rante Allo Oscar Oswald O. Wambrauw Oscar Wambrauw Palamba, Phiter Petrus Bahtiar Pither Palamba Pither Palamba Pither Palamba Pither Palamba Prihananto Setiadji Prihananto Setiadji Ranteallo, Obet Remuz MB Kmurawak Rodhi Rusdianto Hidayat Rombe Allo Royend F. Samosir Ruben M. Kaiwai Rumar, Kristofel Safanpo, Apolo Samuel Parlindungan Siregar Samuel Parlindungan Siregar Samuel Piter Irab Selyus Rantepulung Stephanus de Fretes Sutoro . Tery Wanena Theresia W. Oktaviani Thobby Wakarmamu Thomas Pagasis Tiper K. M. Uniplaita Trajanus Laurens Jembise Untung Muhdiarto Wambrauw, Oscar O. Werdani, Anastasia Sri Wigati Yektiningtyas Wilfriedf Wanane Yane A. Ansanay Yane Ansanai Yane Oktovina Ansanay Yohanis Tangke Tosuli Yohanis Wanane Yohanis Yulius Wanane Yos Wandik Yosef Lefaan