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All Journal JTEV (Jurnal Teknik Elektro dan Vokasional SITEKIN: Jurnal Sains, Teknologi dan Industri JURNAL NASIONAL TEKNIK ELEKTRO PROtek : Jurnal Ilmiah Teknik Elektro Briliant: Jurnal Riset dan Konseptual Indonesian Journal of Artificial Intelligence and Data Mining Rang Teknik Journal Martabe : Jurnal Pengabdian Kepada Masyarakat JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI BATIK: Jurnal Pengembangan dan Pengabdian Masyarakat Multikultural Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering) Advance Sustainable Science, Engineering and Technology (ASSET)
Jelita, Marhama
Universitas Islam Negeri Sultan Syarif Kasim Riau
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Public Health Social Sciences Other

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Perpindahan Kalor Memanfaatkan Fluida Nano Dalam Kurungan Jajaran Genjang Halim Mudia; Marhama Jelita
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 15, No 2 (2018): JUNI 2018
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v15i2.4590

Abstract

Simulasi numerik disajikan dalam makalah ini untuk permasalahan peningkatan perpindahan kalor memanfaatkan fluida nano dalam kurungan jajaran genjang. Kedua sisi miring jajaran genjang tersebut dipertahankan  isotermal pada suhu yang berbeda. Sisi atas dan bawahnya dalam keadaan adiabatik. Persamaan-persamaan momentum dan energi disimulasikan menggunakan piranti Comsol. Berdasarkan prediksi numerik, pengaruh dari sudut dasar jajaran genjang, level pemanasan dan kosentrasi partikel Ag pada pola aliran dan suhu dan juga tingkat perpindahan kalor dalam kurungan jajaran genjang disajikan. Geometri jajaran genjang digabungkan dengan fluida nano dapat meningkatkan tingkat perpindahan kalor secara signifikan.
Analisis Teknis-Ekonomi Pembangkit Listrik Tenaga Hybrid Solar PV/Biogas off Grid System R. Reski Eka Putra; Susi Afriani; Nanda Putri Miefthawati; Marhama Jelita
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 18, No 1 (2020): Desember 2020
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v18i1.11695

Abstract

ABSTRACTReliability of the electric power system and fulfil the certification of sustainable industries in the palm oil industry are offered by utilizing the potential of renewable energy sources as power plants. This research is aimed to analyze the technical and economic aspects of the Solar PV-Biogas power plant at PT. TBS. The method used in this research is hybrid parallel with the off grid network system. In manual calculations showed an optimal generating system consisting of an anaerobic digester with a lagoon capacity of 28,934.81 m3, 1,560 kW biogas generator, 4,040.22 kWp PV array, 2000 kW bidirectional inverter, and 10,125 units of batteries with capacity of 1,547Ah. Then the system is evaluated using HOMER Pro software with project lifetime of 20 years, and the total electricity production obtained during the life of the project is able to supply loads continuously with an average excess electricity about 25.23%/years of total production. Meanwhile, in the economic analysis of hybrid power plants require an initial investment (NPC) of Rp.233,553,169,589.30, with total CO2 emissions of POME 44,073.75 tons/year, then the cost of Certified Emission Reduction is obtained about Rp.6,611,062,500/year. The calculation of economic feasibility results in a Net Present Value of Rp.136.266.578.753, Payback Period of 13,8 years, and an Internal Rate of Return of 9,41%. Based on the result of techno-economic analysis in the research, it can be concluded that this hybrid generating system has the potential to be developed for study that is more detailed if it is to be implemented.Keywords: HOMER Pro, Off-grid, PT. TBS, Solar PV/Biogas, Techno-economic.
Fuzzy Sugeno with Gain Compensator Based on Pole Placement for Controlling Coupled Water Tank System Halim Mudia; Ahmad Faisal; Marhama Jelita
Indonesian Journal of Artificial Intelligence and Data Mining Vol 5, No 1 (2022): March 2022
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ijaidm.v5i1.16350

Abstract

The control of liquid level in tanks is a classic problem in process industries. Most of the liquid will be processed by chemical or mixing treatment in the tanks. Because of that, the liquid level in the tanks must be regulated, so that in order for this system to work as we want, it needs a control strategy. Therefore, this research will use a control strategy using fuzzy sugeno with a gain compensator based on pole placement for controlling level of tank 2 in the coupled water tank system with setpoint is 10 centimeters at time 0 seconds and 8 centimeters given at time 1000 seconds. Wherein, the gain compensator based on pole placement is used to make the output system robust to changes in setpoint with zero steady-state error and fuzzy sugeno for faster time response. The results show that using the fuzzy sugeno with a gain compensator based on pole placement can follow setpoint given with 0 centimeters of steady-state error, 0% for overshoot, 44,6538 seconds for rising time, 62,2688 seconds for settling time and can follow setpoint changes in 58,8662 seconds.
Analisis Potensi Energi Listrik dan Biaya Limbah Rumen Sapi Rumah Potong Hewan Kota Pekanbaru Adriyan Wahyudi; Marhama Jelita
JTEV (Jurnal Teknik Elektro dan Vokasional) Vol 8, No 2 (2022): JTEV (Jurnal Teknik Elektro dan Vokasional)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (246.204 KB) | DOI: 10.24036/jtev.v8i2.117622

Abstract

Dalam proses pemotongan hewan, selain menghasilkan daging, rumah potong hewan kota Pekanbaru juga menghasilkan limbah, seperti darah, rumen dan kotoran. Berdasarkan wawancara dan observasi langsung, limbah pemotongan hewan hanya sampai ke tempat penampungan akhir tanpa adanya proses lebih lanjut, jika dibiarkan seperti itu maka akan berdampak ke lingkungan dan kesehatan. Penelitian ini bertujuan menghitung nilai potensi biogas dari limbah rumen sapi yang merupakan limbah yang paling berpotensi, juga menghitung potensi energi listrik. Pada penelitian ini juga melakukan analisis biaya seperti biaya investasi dan pay back period. Metode penelitian menggunakan fermentasi anaerob untuk potensi biogas, dengan bantuan aplikasi simulasi Superpro Designer. Dari 1.000 kg rumen sapi menghasilkan potensi biogas sebesar 124.949,2351 L/hari dengan kadar gas metan sebesar 78,65%. Potensi energi listrik yang dihasilkan sebesar 180,4 kWh dalam sehari. Dalam analisis biaya  Total investasi dalam pemanfaatan limbah rumen sapi sebesar Rp. 220.049.150. Dan pengembalian modal tercapai dalam waktu 2,4 tahun
Potensi Minyak Pirolisis Dari Bahan Polyprophylene Menjadi Energi Listrik M Farhan; Marhama Jelita
JTEV (Jurnal Teknik Elektro dan Vokasional) Vol 8, No 2 (2022): JTEV (Jurnal Teknik Elektro dan Vokasional)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (249.488 KB) | DOI: 10.24036/jtev.v8i2.117623

Abstract

Sampah merupakan masalah terbesar untuk kota-kota besar di Indonesia, khususnya sampah plastik yang sulit untuk dimanfaatkan kembali. RSD Madani merupakan salah satu penyumbang limbah medis berbahan plastik di kota Pekanbaru, pemanfaatan limbah plastik dengan cara Pirolisis, proses ini dapat mengkonversi limbah plastik menjadi bahan bakar minyak (BBM). Penelitian ini bertujuan untuk menghitung potensi minyak pirolsis dari limbah medis berbahan polyprophylene dan potensi energi listrik yang dihasilkan oleh minyak pirolisis. Penelitian ini menggunakan metode Pirolisis dibantu dengan simulasi SuperPro Designer sehingga diperoleh volumetric flow dari minyak pirolisis. Dari hasil simulasi diperoleh minyak pirolisis dengan jumlah volumetric flow sebesar 3523,70 L dengan kandungan minyak pirolisis sebesar 97,8314%. Energi listrik yang dapat dihasilkan dari minyak pirolisis sebesar 132.575,02 kWh dalam satu tahun sehingga perhari dapat menghasilkan energi listrik sebanyak 363,21 kWh. Potensi daya yang dihasilkan oleh minyak pirolisis adalah 15,13375 kW dalam satu hari.
Pelatihan Publikasi Artikel Pada Jurnal Nasional Terakreditasi Fitri, Irma; Irma, Ade; Saleh, Habibis; Jelita, Marhama
Jurnal Pengembangan dan Pengabdian Masyarakat Multikultural Vol 2 No 1: BATIK April 2024
Publisher : Institut Riset dan Publikasi Indonesia (IRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57152/batik.v2i1.1359

Abstract

The community service initiative was initiated after conducting in-depth interviews and widespread questionnaire surveys. These investigations revealed a issue: many educators are unable to get promoted due to their limited proficiency in composing scientific articles. To effectively overcome these issues, it is essential to address them immediately. The main aim of this program is twofold: firstly, to improve educators' comprehension of the functional promotion process, and secondly, to elevate their proficiency in creating scientific articles. The initiative took place in Pekanbaru, involving a group of 16 junior high school teachers Madani. After training program, every participating teacher is now able to skillfully write scientific articles. While these articles have not yet reached the publication stage, it is noteworthy that educators have acquired the essential knowledge and skills necessary for the successful submission of scientific articles to reputable journals and proceedings. The team implementing this service conducted an evaluation to find out teacher perceptions by distributing questionnaires to find out teacher responses regarding the process of writing scientific articles. The results of the evaluation showed that the demands of working hours and other administrative work consumed a lot of time that could have been used by teachers to write. In addition, lack of motivation was also identified as a factor that hinders the process of writing scientific articles.
Analisis Potensi dan Evaluasi Emisi Biodiesel dari Palm Oil Mill Effluent Hariyadi, Tiara Puja; Jelita, Marhama
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 9, No 2 (2024): May 2024
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v9i2.2754

Abstract

The substantial development of the palm oil industry in Indonesia is evident in the high production of Crude Palm Oil (CPO) as the primary product and Palm Oil Mill Effluent (POME) as a byproduct in palm oil mills. POME waste contains emissions that can harm the environment, necessitating proper waste management. This issue can be addressed by transforming the waste into biodiesel, as it still contains Free Fatty Acids (FFA) and triglycerides. The utilization of biodiesel can reduce the reliance on fossil fuels and environmental pollution. The research aims to evaluate the quality of biodiesel based on the SNI 7182:2015 standard, considering parameters such as Free Fatty Acid (FFA), acid value, density, water content, and viscosity through experimental processes involving sulfuric acid esterification and basic catalyst transesterification. The study is expected to provide information on the potential of biodiesel as a vehicle fuel and energy source for colt diesel engines, along with an emission analysis during the transition from biodiesel to solar. The biodiesel produced meets the standards for FFA (0.26%), acid value (0.57 mg/KOH), and density (0.871 g/ml). The waste volume of 490 m3/day generates 5,096 liters/day of biodiesel, sufficient for 23 units of colt diesel engines with 55% efficiency, producing an energy output of 988,902.91 J. The transition to biodiesel fuel can reduce CO2 emissions by 20.4%, NOx by 50%, and HC by 40%.Keywords – Biodiesel, POME, Renewable Energy, Esterification
Analisis Potensi Energi Listrik dari Biogas Campuran Sampah Daun Ketapang dan Tinja Kerbau Falmansyah, Muhammad Ridho; Jelita, Marhama
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 9, No 2 (2024): May 2024
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v9i2.2821

Abstract

Leaf and twig waste accounts for 12.99% of Indonesia’s waste problems. One of the fertile plants that can produce 10 kg of leaf waste per day for an area of 1200 m3 is the ketapang tree. The ketapang tree has leaf waste that has the potential to become biogas through the fermentation process but produces a small amount of biogas, so the increase is done by mixing buffalo feces. Fermentation of a mixture of ketapang leaf waste and buffalo feces using a Batch-type digester by comparing using starter and non-starter to produce potential biogas and electrical energy. In the fermentation process of the mixture of ketapang leaf waste and buffalo feces, the temperature of the non-starter digester ranges from 26.3-32.6 °C and the starter 26.3-33 °C, the pH of the non-starter digester is in the range of 6.4-6.9 while the starter is 5.8-6.6. Biogas production generated from a mixture of ketapang leaf waste and buffalo work feces for non-starter is 0.00465 m3 and starter 0.0028 m3 with potential electrical energy generated non-starter 0.022 kWh and starter 0.013 kWh. Biogas and electrical energy production from a mixture of ketapang leaf waste and buffalo feces with non-starter is higher than using a starter.Keywords - Biogas, Ketapang Leaf Waste, Buffalo Feces, Starter, Electrical Energy.
Analysis of Bio-briquette Electrical Energy from The Utilization of Combustion Ash in A Boiler Furnance (Ash Boilers) PKS PT. ADEI PLANTATION & INDUSTRY, MPOM Prayetno, Tansyah; Jelita, Marhama
PROtek : Jurnal Ilmiah Teknik Elektro Vol 11, No 2 (2024): Protek : Jurnal Ilmiah Teknik Elektro
Publisher : Program Studi Teknik Elektro Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/protk.v11i2.7174

Abstract

PT. ADEI PLANTATION INDUSTRY is a palm oil processing factory that has a plantation area of 11,047 hectares. This factory produces solid and liquid waste. solid waste is reused as boiler fuel and liquid waste is used for biogas. Combustion in the boiler produces boiler ash, 70% of which is used as organic fertilizer and the remaining 30% is simply thrown away. This research aims to utilize boiler ash waste in bio-briquettes and determine the electrical energy potential of bio-briquettes using the carbonization combustion method in boiler furnaces (boiler ash). The test results for the calorific value of bio-briquettes from the use of residual ash from combustion in boiler furnaces (boiler ash) were 2,214.99 cal/gr. From 1 kg of boiler ash, 11 pieces of bio-briquettes weighing 100 gr/piece, with a calorific value of 24,364 cal/gr, are produced. PT. ADEI PLANTATION INDUSTRY in one day produce 7,536 tons of boiler ash, which will produce 82,896 pieces of bio-briquettes with a heating value of 179,903,776 cal/gr, a total flow rate of heat energy of 792,020 Watts and electrical energy of 950,424 kWh. From the PLTU efficiency of 5.12%, the potential electrical energy produced in one month is 28,512,720 kWh with 188.4 tons of boiler ash and 2,261 tons of boiler ash in 1 year has the potential to become 346,904,760 kWh of electricity. The electrical energy potential of bio-briquettes can meet the needs of 70% of the electricity load at PT. ADEI PLANTATION INDUSTRY, MPOM
Comparative Analysis of Electrical Energy Potential from Coconut Dregs Biobriquettes Using the Pyrolysis Method with Biomass and Direct Burning Types Sutanto, Bintang; Jelita, Marhama
PROtek : Jurnal Ilmiah Teknik Elektro Vol 11, No 2 (2024): Protek : Jurnal Ilmiah Teknik Elektro
Publisher : Program Studi Teknik Elektro Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/protk.v11i2.6923

Abstract

Riau is the province that produces the largest coconut in Indonesia, in 2019 coconut production in Riau reached 417,172.00 tons / year with coconut production of that amount producing a lot of waste as well, one of which was coconut pulp waste of 56,943 tons. If left alone, coconut pulp waste can have a negative impact on the environment. The purpose of this study is the use of coconut pulp waste as biobriquettes and the potential of electrical energy generated in Riau. The method of making biobriquettes uses the Pirolysis method with different types of combustion, namely biomass combustion and direct combustion, the results of this study are experiments conducted from 500 grams of coconut pulp to produce biobriquettes in biomass combustion which is 360 grams and in direct combustion of 240 grams. Characteristic testing is carried out manually, using biomass stoves and biobriquettes as fuel. Biomass combustion is obtained calorific value of 229.16 cal / gram, thermal efficiency of 7%, electrical energy conversion of 0.26655 kWh and electrical energy produced in Riau Province in 2019 which is 173,432,957.3 kWh. Meanwhile, direct combustion obtained a calorific value of 216.6 cal / gram, thermal efficiency of 6%, electrical energy conversion of 0.2518 and electrical energy in Riau province of 109,314,879.6 cal / gram. It can be concluded that biomass combustion is better than direct combustion. 
Co-Authors Aditya, Muhammad Suryo Adriana, Syarifah Adriyan Wahyudi Ahmad Faisal Ananda, Fadilla Ariyanda Lubis Arnando, Vito Falmansyah, Muhammad Ridho Fazero Siregar, Mario Gani, M Afdol Gunawan Gunawan Habibis Saleh Halim Mudia Halim Mudia Hariyadi, Tiara Puja Irma Fitri, Irma Lubis, Ariyanda M Farhan Nanda Putri Miefthawati Prayetno, Tansyah R. Reski Eka Putra Saputra, Ramadian Setiawan, Eksal Yoga Son Maria, Putut Susi Afriani Sutanto, Bintang Sutoyo Sutoyo Triyanti, Riska Utama, Nanda Yossi Arif Rachman