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Pengaruh Rasio Ekuivalen terhadap Traveling Speed Stationary Flame pada Meso-scale Combustor dengan Sudden Expansion Rachmad Dwi Fitriansyah; Digdo Listyadi Setyawan; Gaguk Jatisukamto
STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 1 No 1 (2018): JURNAL STATOR
Publisher : STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin

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The flame on a meso scale combustor has different stability and speed levels according to the regime flame and its characteristics. This study aims to examine the effect of the equivalent ratio of LPG and air gas to the traveling speed stationary flame on a meso combustor with a sudden expansion. The research tool used is a combustor with a diameter of a sudden expansion of 6 mm and a length of 20 mm expansion, mixer and pisco tube channels. The research parameters include fuel discharge, air discharge and flame regime where the fuel and air discharge is varied to get the regime flame and its characteristics are traveling speed. Flame regime visualization by photo flame of video cut off per frame and then processed using video editing software to get traveling speed. The results showed that the observed stationary flame was stationary asymmetric downward at the equivalent ratio ф = 0.82 and ф = 0.86 and stationary symmetric in the equivalent ratio ф = 0.90 and ф = 0.95. The lowest equivalent ratio ф = 0.82 has traveling speed = 4.41 cm / s, and the highest equivalent ratio ф = 0.95 has a traveling speed = 16.68 cm / s. The equivalent ratio ф = 0.82 to ф = 0.95 in the stationary regime flame shows that the higher the equivalence ratio, the traveling speed also increases with the number reaching 16.68 cm / s. Keywords: Meso-scale combustor, traveling speed, stationary flame, sudden expansion,

KARAKTERISTIK PEMBAKARAN BUTANA-UDARA PADA MESO-SCALE COMBUSTOR DENGAN SUDDEN EXPANSION DAN POROS SILINDER Wildhon Mochamad Firdousy
STATOR: Jurnal Ilmiah Teknik Mesin Vol 3 No 1 (2020): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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Proses pembakaran mempunyai skala dimana masih banyak masyarakat yang belum mengetahui definisi dan jenis ukuran yang ada dari pembakaran micro-scale combustor, secara umum micro-scale combustor di klasifikasikan menjadi tiga, yaitu micro-scale combustor, meso-scale combustor dan macro-scale combustor. Metode penelitian ini menggunakan metode eksperimental yaitu variasi diameter inlet 3,3 mm dan 4,2 mm dan diameter outlet 4,7 mm dengan menggunakan sudden expansion dan poros silinder. Tujuan penelitian ini adalah mengetahui karakteristik nyala api pada meso-scale combustor dengan sudden expansion dan poros silinder sebagai flame holder.

Analisis peforma turbin ulir (archimedes screw) dengan variasi tekanan aldio syafiq abidin
STATOR: Jurnal Ilmiah Teknik Mesin Vol 4 No 1 (2021): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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This screw type water turbine was once a device used to pump water. This screw type water turbine operates with low rotation and is still relatively new to be developed and has great potential for rivers or irrigation canals that have low slopes. This turbine has several advantages over other types of low head turbines, namely that it does not have a special control system. In the picture it can be seen the mechanism by which water from the lower reservoir is flowed to the upper reservoir by using a pump, the purpose of the upper reservoir is to stabilize the discharge of water that comes out. When the water has come out it will be passed through the screw, later this water will rotate the screw. This rotation will be transmitted to the generator and generate electricity. The water that has come out will go down to the bottom reservoir and be continued by the pump and will repeat itself. The generator already has a cable that will be used to take data using a multimeter and ampere pliers. Don't forget to also take rotation data using a tachometer. After the desired data has been obtained, you can move on to the next pressure. As for the maximum angle, the pressure is 25 Psi because the water is more optimal when it passes through the screw so that the resulting rotation is greater.

KARAKTERISTIK NYALA API PADA PEMBAKARAN SKALA MESO DENGAN TAMBAHAN SUDDEN EXPANSION DAN PLATE FLAME HOLDER Mahendra Bagaskara
STATOR: Jurnal Ilmiah Teknik Mesin Vol 2 No 1 (2019): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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SUMMARY: Flame Characteristics In Meso Scale Combustion With The Addition Of Sudden Expansion And Plate Flame Holder; Mahendra Bagaskara, 181910101148; 2020; 206 pages; Department of Mechanical Engineering, Faculty of Engineering, University of Jember. The availability of the number of fossil energy sources or that cannot be renewed will be depleted on the surface of the earth, where the increasing growth in technology is one of the factors affecting the availability of energy sources. Due to supporting technology activities human in the present still use fossil fuels. The need for energy sources is so great but not matched by the amount of its availability in nature is the main factor for humans to start using energy sources whose availability will continue to exist if managed properly. One of the ways is by reducing the size of the combustion system and replacing fossil energy sources that originally used fuel oil to become natural gas (Ju and Maruta, 2011). The development in meso combustion is based on research by Wan Jian long (2018), which examines the use of a plate flame holder in the combustor section. This study resulted in a slightly different flame compared to the plate less mechanism. This has an effect on the residence time which can allow the reactants to be more mixed. This research was conducted with experimental where meso-scale combustor with sudden expansion added a flame holder in the form of a plate which is controlled by varying diameter outlet on the combustor. Of the two variations in thediameter outlet, namely 8 mm and 10mm, the results show that at conditions of equivalent ratio (Ф) = 1, the combustor 10 mm has a better flammability limit, more stable fire, and shape of the fire tends to widen and forms like 2 letter c or a semicircle in the plate holder.

SOSIALISASI DAN PELATIHAN PEMBANGKIT LISTRIK TENAGA MIKROHIDRO UNTUK MASYARAKAT DAERAH PELOSOK DAN PERTANIAN Yuni Hermawan; Alfredo Bayu Satriya; Santoso Mulyadi; Dwi Djumhariyanto; Mochamad Trifiananto; M Dimyati Nashrullah; Intan Hardiatama; Rahma Rei Sakura; Hary Sutjahjono; Dedi Dwilaksana; Ririn Endah Badriani; M Arief Hidayat
STATOR: Jurnal Ilmiah Teknik Mesin Vol 5 No 1 (2022): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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Pada saat ini dunia sedang mengalami ’krisis energi’ dan khususnya Indonesia mengalami krisis energi listrik secara nasional. Listrik merupakan salah satu kebutuhan hidup manusia yang primer, sehingga diperlukan suatu instalasi pembangkit tenaga listrik yang efisien.Salah satu sumber energi alternatif tersebut adalah pembangkit listrik tenaga mikrohidro PLTMH. Pada pengabdian ini difokus untuk memberdayakan masyarakat desa Jambewangi yang mengalami krisi energi karena daerah tersebut belum terjangkau PLN, sehingga dengan adanya kegiatan pengabdian masyarakat ini akan dihadirkan teknologi pembangkit listrik bersumber potensi energi yang ada. Tujuan dari kegiatan ini adalah menciptakan desa yang mandiri energi dengan cara pembuatan pembangkit listrik tenaga mikro hidro PLTMH berkapasitas 4500 W dan bersumber dari generator listrik yang digerakkan oleh turbin air. Hasil dari kegiatan ini penyelesaian krisis energi yang dialami masyarakat desa pelosok pertanian dengan menhadirkan sentuhan teknologi PLTMH yang dapat bekerja secara optimal berdasarkan potensi alam yang ada. Perbaikan saluran air menuju bak penampungan dan naik-turunnya tegangan yang sering merusak komponen kelistrikan menjadi masalah utama mitra. Untuk itu perlu dilakukan perbaikan saluran dan pembuatan mesin penstabil tegangan sehingga masalah utama mitra segera teratasi dengan baik. Dengan ketinggian air jatuh 3 m dan pemakaian turbin air dengan jumlah sudu 4 buah telah menghasilkan listrik 3000 W, sehingga pembangkit listrik tenaga mikro hidro PLTMH ini dapat bekerja secara maksimal.

PENGARUH Mg DAN PENAMBAHAN FRAKSI VOLUME SiC TERHADAP SIFAT MEKANIK KOMPOSIT Al6061/SiC Dwi Djumhariyanto; Ahmad Wafi; Salahuddin Junus; Gaguk Jatisukamto; Robertus Sidartawan
STATOR: Jurnal Ilmiah Teknik Mesin Vol 5 No 1 (2022): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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Metal Matrix Composites (MMC) merupakan jenis komposit diantara banyaknya jenis komposit. Komposit logam sendiri merupakan kombinasi dari dua material atau lebih yang dimana logam sebagai matrik dan keramik sebagai penguatnya. Kombinasi tersebut bertujuan untuk mendapatkan material baru yang mempunyai sifat mekanis yang lebih baik daripada bahan dasarnya.Pada penelitian ini bertujuan untuk mengetahui pengaruh Mg dan penambahan fraksi volume SiC terhadap sifat mekanik komposit Al6061-SiC menggunakan metode stir casting. Partikel SiC digunakan sebagai penguat dikarenakan sifatnya yang mampu menaikkan sifat mekanik dari komposit itu sendiri, sedangkan serbuk Magnesium (Mg) ditambahkan sebagai wetting agent agar mampu membasahi daripada matrix serta memperkecil batas butir pada komposit Al6061/SiC. Pada pengujian kekerasan yang dilakukan didapatkan hasil terbaik pada penambahan 8% SiC yaitu senilai 62,5 HRB. Pengujian tarik menunjukkan nilai kekuatan tarik tertinggi pada spesimen penambahan 8% SiC senilai 151,3 MPa.

ANALISIS FLAME REGIME PADA PEMBAKARAN BUTANA-UDARA DI MESO-SCALE COMBUSTOR DENGAN SUDDEN EXPANSION DAN WIRE MESH Muhammad Fauzi
STATOR: Jurnal Ilmiah Teknik Mesin Vol 3 No 1 (2020): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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Perkembangan teknologi pada zaman sekarang berkembang sangat pesat di kalangan masyarakat di dunia yang mempengaruhi ketersediaan sumber energi yang tidak dapat di perbaharui. Pengunaan bahan bakar sebagai sumber energi menjadi kebutuhuan setiap aktifitas manusia. Perkembangan teknologi micro/meso combustor semakin pesat dan berkembang luas yang bertujuan untuk mengganti baterai sebagai sumber energi. Tujuan dari penelitian ini adalah untuk melakukan pengamatan terhadap flame regime yang terjadi variasi diameter inlet di meso-scale combustor dengan sudden expansion dan wire mesh. Penelitian ini dilakukan dengan memberikan penambahan flame holder berupa wire mesh yang dipasangkan di dekat sudden expansion pada kedua combustor. Combustor terdiri dari bagian input yang terbuat dari tembaga dan output dari bahan kaca pyrex silinder dengan variasi diameter input 3,3 mm dan 4,2 mm dan diameter outlet tetap 4,7 mm. Penambahan wire mesh tersebut diharapkan dapat menstabilkan flame regime yang terjadi pada combustor. Diperoleh hasil nyala api terbaik ada pada rasio combustor = 0,9 dimana mayoritas flame regime yang terbentuk yaitu flame at flame holder. Ada 4 flame regime yang terjadi di dalam variasi kedua combustor yaitu blowout, flashback, flame in combustor dan flame at flame holder

ANALISIS PERFORMA KINERJA COOLING TOWER INDUCED DRAFT COUNTER FLOW DENGAN BAHAN PENGISI ROTAN Alvin Ulil Amriansyah; Digdo Listyadi Setyawan; Rika Dwi Hidayatul Qoryah
STATOR: Jurnal Ilmiah Teknik Mesin Vol 4 No 1 (2021): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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Cooling tower is defined as a heat exchanger whose working fluid is water and air which functions to cool water by direct contact with air To produce maximum performance from the cooling tower , a filler material is needed which functions to inhibit the flow of water. Rattan has smooth and strong properties against various conditions and is easy to make the desired shape. Previous research on cooling towers has shown that the work performance cooling tower is maximized by using fillers, one of which is using fiber, bamboo and aluminum as fillers.This cooling tower uses 3 layers of rattan filler with the distance between the fillers being equalized with 3 variations of the distance. In the process of testing the same treatment by varying the initial temperature 50 , 60 , 70 , air velocity 4 m/s, 6m/s, 8 m/s, and the distance between fillers 10 cm, 15 cm, 20 cm. Research on cooling towers with rattan as a filler resulted in higher cooling effectiveness and capacity than cooling towers without using fillers. This is evidenced by the highest effectiveness value on a cooling tower with filler material is 96.94%, while the highest value in the cooling tower without filler is 80.24%. The cooling capacity value in the cooling tower with filler is 11.23 kJ/s , while the highest value in the cooling tower without filler is 9.73 kJ/s. Keywords: Cooling Tower, Rattan, Effectiveness

ANALISIS PEMBEBANAN STATIS PADA BOLSTER UNTUK LIFT BOGIE TEMPORARY Ahmad Miftahul Royan
STATOR: Jurnal Ilmiah Teknik Mesin Vol 3 No 1 (2020): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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Bogie temporary merupakan alat untuk mindahkan sebuah part, car body ,dll yang berhubungan dengan kereta api dari base satu ke-base selanjutanya.Material Bogie temporary yang digunakan di dalam penelitian ini adalah structural steel dengan penampang bolster. Penelitian ini bertujuan melakukan analisis kekuatan dan kesetimbangan struktur boslter. Metodologi penelitian yang digunakan yaitu analisis elemen beda hingga (Finite Element Analysis) dengan software Ansys student. Hasil analisis struktur menunjukkan bahwa defleksi maksimum terjadi pada pasak penghubung antara bogie dengan car body , yaitu δmaks = 0,0008038 mm; tegangan luluh maksimum σy maks = 280,27 MPa; regangan luluh maksimum εy maks = 0,00014014 mm.

nanoparticle on PBM PENGARUH KECEPATAN PUTAR MOTOR PENGGERAK PLANETARY BALL MILL PADA PENGGILINGAN SERBUK MIKRO SiC TERHADAP KARAKTERISTIK SERBUK SiC yousak indro nyuswantoro
STATOR: Jurnal Ilmiah Teknik Mesin Vol 4 No 1 (2021): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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Nanotechnology is a technology that operates at the announced nanoscale 1-100 nm. Planetary ball mill is one of the tools used to make materials displayed on nano. In this study, SiC powder is used which is a carbide compound and is a non-oxide ceramic material. The parameters used are the variable speed of the driving motor (150 and 200) Rpm with the time during grinding for 2 hours, with the constant variable BPR 20:1 with the diameter of the grinding ball used 5 mm and 10 mm and the volume of the bowl used 250 ml made of of alumina ceramics. SiC powder will be tested using a light microscope with a magnification of 100 times to determine the size and shape of the particles. The shape of SiC particles that appear to be in the form of irregular variations (150 Rpm & 2 hours) with an average size of 49.35μ (200 Rpm & 2 hours) has an uneven particle shape with an average size of 23.78μ

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Kab. jember,

Jawa timur

INDONESIA