Journal of Renewable Energy and Mechanics最新文献_第2页

Effect of Quenching Medium and Tempering Temperature on Microstructure and Hardness of JIS SUP 9 Steel 淬火介质和回火温度对JIS SUP 9钢组织和硬度的影响

Journal of Renewable Energy and Mechanics Pub Date : 2023-03-30 DOI: 10.25299/rem.2023.vol6.no01.10973

Andrie Harmaji, A. Korda, Rama Ramadhan, S. Pambudi

{"title":"Effect of Quenching Medium and Tempering Temperature on Microstructure and Hardness of JIS SUP 9 Steel","authors":"Andrie Harmaji, A. Korda, Rama Ramadhan, S. Pambudi","doi":"10.25299/rem.2023.vol6.no01.10973","DOIUrl":"https://doi.org/10.25299/rem.2023.vol6.no01.10973","url":null,"abstract":"JIS SUP 9 steel is one of the materials commonly used for suspension components in motorized vehicles with medium carbon steel base material. It must have good hardness and toughness so that failure does not occur during operational. This research was conducted to increase the hardness of JIS SUP 9 Steel through a heat treatment and various quenching media. The heat treatment was carried out with 830-880ºC temperature with a holding time of 7 minutes then cooled using water and oil. After treatment, tempering was carried out with a holding time of 7 minutes and then cooled in room temperature. Hardness testing was carried out using Microhardness Vickers and then the microstructure was observed using an Olympus Metallurgical Microscope. The results show that heat treatment followed by rapid cooling increases the initial hardness of JIS SUP 9 (229 VHN) steel. The decrease in hardness after the tempering process will be higher with increasing tempering temperature. The results of the microstructure of the sample without heat treatment showed pearlite and ferrite phases. After heat treatment, tempered martensite, residual austenite and carbide phases appear. It can be concluded that changes in the microstructure affect the hardness of JIS SUP 9 steel.","PeriodicalId":33715,"journal":{"name":"Journal of Renewable Energy and Mechanics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90213016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effect of Silica Sand Size on Mechanical Properties, Permeability and Proppant Microstructure 硅砂粒径对支撑剂力学性能、渗透率和微观结构的影响

Journal of Renewable Energy and Mechanics Pub Date : 2023-03-30 DOI: 10.25299/rem.2023.vol6.no01.11274

Nover Martaheru, Dedikarni, R. Z. Aldio, Dody Yulianto, Kurnia Hastuti

{"title":"The Effect of Silica Sand Size on Mechanical Properties, Permeability and Proppant Microstructure","authors":"Nover Martaheru, Dedikarni, R. Z. Aldio, Dody Yulianto, Kurnia Hastuti","doi":"10.25299/rem.2023.vol6.no01.11274","DOIUrl":"https://doi.org/10.25299/rem.2023.vol6.no01.11274","url":null,"abstract":"Pellet silika merupakan produk teknologi keramik komposit berbahan penguat pasir silika yang diaplikasikan dalam industri minyak dan gas sebagai proppant (pasir frank) maupun sebagai filter air dan industri perminyakan. Penelitian ini bertujuan untuk mendapatkan pengaruh ukuran pasir silika terhadap kekuatan tekan, permeabilitas dan mikrostruktur. Pada penelitian ini, ukuran pasir silika yang dipilih ukuran pasir silika halus yaitu (200 mesh) dan pasir silika kasar yaitu (20 mesh) dan diikat oleh polyethylene glycol (PEG) 400. Hasil uji kekuatan tekan terendah didapat pada sampel I yaitu 33,24 MPa sedangkan kekuatan tekan tertinggi pada sampel III yaitu sebesar 34,05 MPa. Karena semakin banyaknya ukuran butir pellet silika halus mampu memberikan ikatan interfacial pada polyethylene glycol (PEG) 400, dengan ukuran diameter lebih kecil akan memudahkan terjadi ikatan pada matriks sehingga meningkatkan nilai kekuatan tekan. Namun, uji permeabilitas berbanding terbalik pada kekuatan tekan dimana nilai permeabilitas tertinggi didapat pada sampel I yaitu 29,93 mD, sedangkan nilai permeabilitas terendah pada sampel III yaitu sebesar 23,35 mD. Hal ini karena adanya hubungan ukuran pasir silika halus yang berlawanan arah dengan ukuran pasir silika kasar. Artinya, apabila ukuran butir pasir silika halus naik dan ukuran butir silika kasar turun maka nilai permeabilitas turun. Hasil pengamatan mikrostruktur pada sampel I terlihat lebih sedikit rongga atau porosity dan membuat suatu ikatan interfacial yang lebih kuat. Karena adanya ukuran butir pasir silika halus lebih dominan banyak dari pada ukuran butir pasir silika kasar serta dibantu oleh pengikat berupa polyethylene glycol (PEG) 400. \u0000 ","PeriodicalId":33715,"journal":{"name":"Journal of Renewable Energy and Mechanics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89232846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effect of Natural Fiber Composite of Acasia Bark and Oil Palm Empty Fruits Using Epoxy Resin Adhesive on Mechanical Properties 金合欢皮与油棕空果天然纤维复合环氧树脂胶黏剂对机械性能的影响

Journal of Renewable Energy and Mechanics Pub Date : 2022-09-30 DOI: 10.25299/rem.2022.vol5.no02.9709

Dody Yulianto, Muhammad Rintami, Irwan Anwar, Kurnia Hastuti

{"title":"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","doi":"10.25299/rem.2022.vol5.no02.9709","DOIUrl":"https://doi.org/10.25299/rem.2022.vol5.no02.9709","url":null,"abstract":"ABSTRAK \u0000 \u0000Perkembangan 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. \u0000 \u0000Kata kunci : Serat Alam, Kulit Kayu Akasia, Resin Epoxy, Tandan Kosong Kelapa Sawit, Sifat Mekanik \u0000 ","PeriodicalId":33715,"journal":{"name":"Journal of Renewable Energy and Mechanics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75955478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Review of Sustainable and Renewable Sources of Energy for Afghanistan 阿富汗可持续和可再生能源综述

Journal of Renewable Energy and Mechanics Pub Date : 2022-09-30 DOI: 10.25299/rem.2022.vol5.no02.10226

Abdul Baser Qasimi, Vahid Isazade, A. Toomanian

引用次数: 0

EXPERIMENTAL STUDY OF THE EFFECT OF ADDITION GLASS WOOL AS INSULATION MATERIAL ON THE PERFORMANCE OF FLAT PLATE TYPE SOLAR COLLECTORS 添加玻璃棉作为保温材料对平板太阳能集热器性能影响的实验研究

Journal of Renewable Energy and Mechanics Pub Date : 2022-09-30 DOI: 10.25299/rem.2022.vol5.no02.9982

R. E. Rachmanita

引用次数: 0

EXPERIMENTAL STUDY EXPERIMENTAL STUDY OF SEA WAVE POWER PLANT WITH MECHANICAL BUYING SYSTEM 海浪动力装置机械购买系统的实验研究

Journal of Renewable Energy and Mechanics Pub Date : 2022-09-30 DOI: 10.25299/rem.2022.vol5.no02.10196

Ojak Abdul Rozak

{"title":"EXPERIMENTAL STUDY EXPERIMENTAL STUDY OF SEA WAVE POWER PLANT WITH MECHANICAL BUYING SYSTEM","authors":"Ojak Abdul Rozak","doi":"10.25299/rem.2022.vol5.no02.10196","DOIUrl":"https://doi.org/10.25299/rem.2022.vol5.no02.10196","url":null,"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.","PeriodicalId":33715,"journal":{"name":"Journal of Renewable Energy and Mechanics","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78343794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructure and Mechanical Properties of Pack Carburized AISI 1020 Steel Using Na2CO3 and CaCO3 Catalysts Na2CO3和CaCO3催化剂对AISI 1020钢包渗碳组织和力学性能的影响

Journal of Renewable Energy and Mechanics Pub Date : 2022-09-30 DOI: 10.25299/rem.2022.vol5.no02.9965

A. Karim, Ilham Azmy, Silviani Qotrunnida Khoiriah, C. Bintoro

{"title":"Microstructure and Mechanical Properties of Pack Carburized AISI 1020 Steel Using Na2CO3 and CaCO3 Catalysts","authors":"A. Karim, Ilham Azmy, Silviani Qotrunnida Khoiriah, C. Bintoro","doi":"10.25299/rem.2022.vol5.no02.9965","DOIUrl":"https://doi.org/10.25299/rem.2022.vol5.no02.9965","url":null,"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.","PeriodicalId":33715,"journal":{"name":"Journal of Renewable Energy and Mechanics","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87441681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

EVALUASI PERUBAHAN UKURAN (SIZE-UP) POMPA ESP TERHADAP PRODUKSI FIELD MARLEY ESP对场马利生产的影响

Journal of Renewable Energy and Mechanics Pub Date : 2022-09-30 DOI: 10.25299/rem.2022.vol5.no02.9894

Alexander Tanpasya

{"title":"EVALUASI PERUBAHAN UKURAN (SIZE-UP) POMPA ESP TERHADAP PRODUKSI FIELD MARLEY","authors":"Alexander Tanpasya","doi":"10.25299/rem.2022.vol5.no02.9894","DOIUrl":"https://doi.org/10.25299/rem.2022.vol5.no02.9894","url":null,"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.","PeriodicalId":33715,"journal":{"name":"Journal of Renewable Energy and Mechanics","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89012202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unjuk Kerja Engine Empat Langkah Generator Set Dengan Bahan Bakar Oxy-Hydrogen (HHO) Dari Proses Elektrolis Air Dengan Menggunakan Karburator Type Vacuum Valve

Journal of Renewable Energy and Mechanics Pub Date : 2022-09-30 DOI: 10.25299/rem.2022.vol5.no02.10058

Theodorus Rendy Prasetya, Lathifa Putri Afisna, Devia Gahana C.A, Rizky Faesal Sadikin

{"title":"Unjuk Kerja Engine Empat Langkah Generator Set Dengan Bahan Bakar Oxy-Hydrogen (HHO) Dari Proses Elektrolis Air Dengan Menggunakan Karburator Type Vacuum Valve","authors":"Theodorus Rendy Prasetya, Lathifa Putri Afisna, Devia Gahana C.A, Rizky Faesal Sadikin","doi":"10.25299/rem.2022.vol5.no02.10058","DOIUrl":"https://doi.org/10.25299/rem.2022.vol5.no02.10058","url":null,"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.","PeriodicalId":33715,"journal":{"name":"Journal of Renewable Energy and Mechanics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75236274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

KARAKTERISASI PERFORMA GENSET DIESEL 5 KW MENGGUNAKAN SYNGAS SERBUK KAYU DENGAN VARIASI PEMBEBANAN 描述柴油机发动机5 KW使用木粉同步器，具有各种各样的限制

Journal of Renewable Energy and Mechanics Pub Date : 2022-02-28 DOI: 10.25299/rem.2022.vol5.no01.8888

W. Wahyu, Erwin, Slamet Wiyono

引用次数: 0