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Journal of Renewable Energy and Mechanics
Number of Followers: 1

This is an Open Access Journal

Open Access journal
ISSN (Print) 2714-6219 - ISSN (Online) 2614-8315
Published by Universitas Islam Riau

[20 journals]

Microstructure and Mechanical Properties of Pack Carburized AISI 1020
Steel Using Na2CO3 and CaCO3 Catalysts
- Authors: Abdul Karim, Ilham Azmy, Silviani Qotrunnida Khoiriah, Carolus Bintoro
  Pages: 52 - 59
  Abstract: AISI 1020 steel is categorized in low carbon steel which widely used for automotive parts industry and construction because its characteristic like high ductility, relatively low hardness value, and high formability. In continuously usage for long time, this steel tends to be worn down because its low surface hardness value. The surface hardness is congruity to wear resistance of AISI 1020 steel. In this research, the experimental method of pack carburizing process was carried out by heating AISI 1020 steel samples packed along charcoal with catalysts variation of Na2CO3 and CaCO3 till temperature 900 oC and hold it for 4 hours to effect diffusion carbon mechanism in surface treatment. Thereupon, AISI 1020 steel samples was fast cooled by using distilled water. The selection of different catalyst variation according to diffusion capability which will be expected to enhance AISI 1020 steel’s microstructure and mechanical properties. From this research, it obtained that pack carburized AISI 1020 steel using Na2CO3 possesses significant microstructure transformation which will affect to the highest hardness value increment (505,4 HV) and the lowest wear rate decrease (0,00821 mm3/minute). Thereby, pack carburized AISI 1020 steel using Na2CO3 also exhibits good wear resistance characteristic so that can be used in long lifetime.
  PubDate: 2022-09-30
  DOI: 10.25299/rem.2022.vol5.no02.9965
  Issue No: Vol. 5, No. 02 (2022)
A Review of Sustainable and Renewable Sources of Energy for Afghanistan
- Authors: Abdul Baser Qasimi, Vahid Isazade, Ara Toomanian
  Pages: 60 - 75
  Abstract: Supplying energy demands in Afghanistan is a serious problem, providing demanded energy for consumption is mostly provided by neighboring countries, especially Iran, Turkmenistan, Uzbekistan, and Tajikistan. Domestic production of energy covers only an only small portion of energy demands in the country. In this regard, the energy supply in this country is extremely vulnerable and indicates non-sustainability. This study was intended to review available conducted research and published articles and reports. the results obtained from these reviews show that the utilization of renewable energy, especially, solar and wind energy, resources in Afghanistan is the only reliable and sustainable solution for the energy problem in this country. The results of the review of the previous research indicate that Afghanistan has great potential for renewable energy sources. the country has sources of renewable energy, including solar, wind, and geothermal energy.
  PubDate: 2022-09-30
  DOI: 10.25299/rem.2022.vol5.no02.10226
  Issue No: Vol. 5, No. 02 (2022)
Unjuk Kerja Engine Empat Langkah Generator Set dengan Bahan Bakar
Oxy-Hydrogen (HHO) dari Proses Elektrolisis Air dengan Menggunakan
Karburator Type Vacuum Valve
- Authors: Theodorus Rendy Prasetya, Lathifa Putri Afisna, Devia Gahana C.A, Rizky Faesal Sadikin
  Pages: 76 - 87
  Abstract: Seiring dengan semakin tingginya kebutuhan akan energi membuat penggunaan akan bahan bakar fosil semakin tinggi yang memberikan dampak terhadap lingkungan sehingga diperlukannya sumber energi alternatif untuk mengurangi dampak yang ditimbulkan karena penggunaan bahan bakar fosil. Gas oxy-hydrogen merupakan salah satu bahan bakar yang dapat digunakan sebagai salah satu sumber bahan bakar pada generator set. Gas oxy-hydrogen dapat diperoleh dari proses elektrolisis air dengan menggunakan sumber energi yang ramah lingkungan. Penelitian ini bertujuan untuk mengetahuidpengaruhfpenggunaan gas oxy-hydrogen dari hasil elektrolisis airdsebagai bahan bakardalternatif, mencari parameterdunjuk kerja mesindgenerator set dengan menggunakan bahan bakar oxy-hydrogen, membandingkandunjuk kerja mesin generator set dengandbahan bakar gas oxy-hydrogen dengan bahan bakar bahan bakar pertalite dan campuran antara gas oxy-hydrogen dan pertalite. Penelitian menggunakan generator set mesin bensin 4 langkah yang dipasang dengan karburator type vacumvalve dengan beban 1000 watt yang umum digunakan. Dari hasil penelitian didapatkan parameter unjuk kerja generator set yang didapat dengan menggunakan bahan bakar oxy-hydrogen. Nilai parameter saat saat beban 1000 watt didapat daya efektif generator sebesar 1,035 kW, nilai torsi pada 3,297 Nm konsumsi bahan bakar spesifik sebesar 0,3658 kg/kW.jam, nilai efisiensi termal sebesar 12,05 % dan nilai tekanan efektif rata-rata sebesar 184,06 kPa.
  PubDate: 2022-09-30
  DOI: 10.25299/rem.2022.vol5.no02.10058
  Issue No: Vol. 5, No. 02 (2022)
Evaluasi Perubahan Ukuran (Size-Up) Pompa ESP Terhadap Produksi Field
Marley
- Authors: Alexander Tanpasya
  Pages: 88 - 94
  Abstract: Lapangan atau Field Marley merupakan salah satu lapangan di wilayah kerja PT. Pertamina Hulu Rokan yang berlokasi di Provinsi Riau yang telah memasuki fase brown fild dan mempunyai tingkat water cut yang tinggi. Kondisi tersebut membuat perusahaan memulai langkah baru dengan melakukan perubahan ukuran (Size-Up) pada pompa di sumur Marley. Namun setelah dilakukannya program Size-Up tersebut terdapat beberapa sumur yang mengalami failure, oleh karena itu pada penelitian kali ini peneliti akan melakukan perhitungan ulang untuk mencari tahu sejauh mana keberhasilan program Size-Up tersebut berhasil. Pasca dilakukannya program Size-Up pada sumur Asmud di lapangan Marley di dapat hasil sebanyak 68% keberhasilan yang mana itu di bawah target minimum yang seharusnya di atas 100%. Diketahui pompa yang terpasangan pada sumur Asmud adalah jenis pompa Centrilift 400P10 dengan spesifikasi range pompa 650-1400 bfpd, tenaga motor 42 HP, arus listrik 53 A, tegangan listrik 475 V dan efisiensi sebesar 88,4%. Data sumur yang di dapat berupa water cut 93%, dengan nilai sfl sebesar 184 ft dan wfl sebesar 307 ft, memiliki pwf sebanyak 383,33 psi serta nilai API 34. Berdasarkan parameter tersebut dapat di analisa dengan curva Inflow Performance Relationship (IPR) dapat di analisa bahwa sumur Asmud dalam kondisi downthrust yang mana pompa berada pada range minimum. Oleh sebab itu peneliti menyarankan agar dilakukannya Size-Down pompa menggunakan pompa Centrilift 400P8 60 Hz dengan spesifikasi range 550-1200 bfpd yang sesuai dengan kapasitas produksi sumur Asmud.
  PubDate: 2022-09-30
  DOI: 10.25299/rem.2022.vol5.no02.9894
  Issue No: Vol. 5, No. 02 (2022)
Experimental Study of Sea Wave Power Plant with Mechanical Buoying System
- Authors: Ojak Abdul Rozak
  Pages: 95 - 108
  Abstract: The need for electrical energy in Indonesia continues to increase, triggering an electrical energy crisis due to the increasing number of consumers of electrical energy which has an impact on the reduction of non-renewable fossil energy sources. Alternative energy sourced from new and renewable energy is needed, the use of electric generators from ocean wave energy in coastal areas needs to be empowered to be used as electrical energy that is useful for the community. This ocean wave power plant consists of: generator, power storage and voltage riser. A fixed magnetic generator connected to the buoy ball, the kinetic energy and potential energy of the ocean waves move the buoy ball so that the generator can rotate and produce electrical energy. This system can be used as a 12 V direct current (DC) battery charger as a backup energy supply and then increased to 220 V alternating current (AC) using an inverter. The average result of generator rotation is 182.34 ratio per minute (RPM). The average voltage generated by the generator is 12.53 V and the average current is 1.06 A and the output voltage of the inverter is 217 V when the load is 100 W.
  PubDate: 2022-09-30
  DOI: 10.25299/rem.2022.vol5.no02.10196
  Issue No: Vol. 5, No. 02 (2022)
The Effect of Natural Fiber Composite of Acasia Bark and Oil Palm Empty
Fruits Using Epoxy Resin Adhesive on Mechanical Properties
- Authors: Dody Yulianto, Muhammad Rintami, Irwan Anwar, Kurnia Hastuti
  Pages: 109 - 116
  Abstract: ABSTRAK Perkembangan teknologi komposit tidak hanya pada komposit sintetis, akan tetapi juga mengarah pada komposit alam (Natural Composite) dikarenakan keistimewaan sifatnya yang dapat di daur ulang atau istilah lain terbarukan. Penelitian ini bertujuan membuat bahan komposit serat alam dan resin epoxy terhadap sifat mekanis. Pada penelitian ini, komposisi tandan kosong kelapa sawit dan serat kulit akasia dengan nilai 15%+5%, 10%+10% dan 5%+15% dengan bahan perekat resin epoxy 80%. Hasil uji bending menunjukkan bahwa campuran komposit 80% resin epoxy, 15 % serat tandan kosong kelapa sawit dan 5 % serbuk kayu akasia mempunyai nilai kekuatan bending yang terendah yaitu 9,95N/mm2, sedangkan campuran komposit 80% resin epoxy, 5% serat tandan kosong kelapa sawit dan 15 % serbuk kayu akasia mempunyai nilai kekuatan bending tertinggi yaitu 20,84 N/mm2. Hal ini disebabkan karena campuran serbuk kayu akasia memiliki struktur dari serat akasa lebih kasar, kuat, padat dan lebih berat dari pada tandan kosong kelapa sawit yang memiliki stuktur serat yang lebih ringan, rapuh dan berongga (tidak padat). Hasil kekuatan impact yang paling tinggi dari campuran serat alam 80% resin epoxy, 15% serbuk kayu akasia dan 5% TKKS dengan nilai 134 J/mm2. Hal ini disebabkan dari jumlah campuran dari akasia lebih besar maka kekuatan spesimen lebih tinggi kekuatannya karena semakin banyak serat akasia maka semakin terus meningkat kekuatan spesimen tersebut. Kata kunci : Serat Alam, Kulit Kayu Akasia, Resin Epoxy, Tandan Kosong Kelapa Sawit, Sifat Mekanik
  PubDate: 2022-09-30
  DOI: 10.25299/rem.2022.vol5.no02.9709
  Issue No: Vol. 5, No. 02 (2022)
Experimental Study of the Effect of Addition Glass Wool as Insulation
Material on the Performance of Flat Plate Type Solar Collectors
- Authors: Risse Entikaria Rachmanita
  Pages: 117 - 124
  Abstract: Clean energy sources are becoming more and more common, and the use of solar thermal energy is also increasing. Indonesia gets sunlight all year round with a radiation radiation of 4.80 kWh/m2. The potential of solar energy can be utilized by converting solar radiation into new energy. The flat plate solar water collector is a simple solar energy conversion system for hot water production. This study aims to determine the amount of heat energy received by the solar collector, determine the temperature of the water that comes out (Tout) on the solar collector and determine the thermal efficiency (η) on the flat plate solar collector with the addition of glass wool as an insulation material. The results showed that the highest thermal energy that enters the solar collector is 832.58 W and produces an output water temperature of 320.7 K or 47.7 °C. The efficiency that can be achieved by the solar collector is quite efficient, which is 47.92%.
  PubDate: 2022-09-30
  DOI: 10.25299/rem.2022.vol5.no02.9982
  Issue No: Vol. 5, No. 02 (2022)