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All Journal Rekayasa Mesin Jurnal Fisika FLUX Info-Teknik Turbo : Jurnal Program Studi Teknik Mesin Civil and Environmental Science Journal (CIVENSE) Multitek Indonesia : Jurnal Ilmiah Jurnal Elemen Scientific Journal of Mechanical Engineering Kinematika Buletin Profesi Insinyur JTAM ROTARY JMIO: Jurnal Mesin Industri dan Otomotif International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul)
Andy Nugraha
Program Studi Teknik Mesin Fakultas Teknik Universitas Lambung Mangkurat
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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ANALISIS KINERJA TURBIN ARCHIMEDES SCREW PADA PEMBANGKIT LISTRIK TENAGA MIKRO HIDRO Andy Nugraha; Muhammad Nizar Ramadhan; Akhmad Syarief; Dwi Suci Adianto
ELEMEN : JURNAL TEKNIK MESIN Vol. 9 No. 1 (2022)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v9i1.183

Abstract

Pembangkit Listrik Tenaga Mikrohidro (PLTMH) adalah suatu pembangkit listrik skala kecil dengan menggunakan tenaga air sebagai tenaga dengan cara memanfaatkan tinggi terjunan (head) dan jumlah debit air. Turbin archimedes screw dapat beroperasi pada head rendah dibawah 10 meter, tidak membutuhkan pipa pesat, mudah dalam perawatan dan pemasangan. Penelitan ini bertujuan untuk mengetahui variasi debit aliran air terhadap Torsi, daya hidrolis, daya generator dan efisiensi turbin yang mampu dihasilkan oleh turbin Archimedes screw. Variasi debit aliran air yang digunakan pada penelitian ini yaitu 1 liter/s, 1,5 liter/s, dan 2 liter/s. Hasil dari penelitian ini menunjukkan bahwa variasi debit aliran air berbanding lurus terhadap kinerja PLTMH dimana didapatkan torsi turbinefisiensi generator pada debit aliran 2 liter/s sebesar 12,76%, pada debit aliran air 1,5 liter/s sebesar 9,07%, dan pada 1 liter/s sebesar 1,16%.
Pengaruh fraksi volume dan orientasi sudut serat komposit polyester-serbuk kayu ulin (eusideroxylon zwageri)-kawat kasa terhadap kekuatan bending Akhmad Syarief; Taufik Irfansyah Sofian; Akhmad Ghiffary Budianto; Andy Nugraha
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 2 (2022): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i2.2163

Abstract

A composite is a material formed from the combination of two or more constituent materials through an inhomogeneous mixture. The ironwood waste has less economic value, which makes the authors interested in conducting research using mosquito nets and particle composite ironwood waste. Which is to find out the effect of volume fraction and angle orientation of the fiber composite polyester-ulinwood powder (Eusideroxylon zwageri)-mosquito wire on the bending strength. The bending test was carried out using the ASTM D-790 standard with the three point bending test method and the composite was manufactured using the hand lay-up method with the particle composition: polyester: 10%: 90%, 15%: 85%, 20%: 80%, and 25%: 75%. The results obtained in the comparison of the composition of less ironwood powder, a finer mesh size with an orientation angle of 45°, and mosquito wire show the highest bending strength and high deformation ability (ductile), and the addition of mosquito net as one of the composite specimen fibers of polyester resin does not increase significant bending strength but can reduce the deformability reduction effect.
ANALISIS SIFAT FISIK BRIKET LIMBAH ARANG KAYU ALABAN-SEKAM PADI BERPEREKAT TAPIOKA DAN SAGU Akhmad Syarief; Geovani Glen Supit; Andy Nugraha; Muhammad Nizar Ramadhan
ELEMEN : JURNAL TEKNIK MESIN Vol. 9 No. 2 (2022)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v9i2.162

Abstract

Energi terbarukan yang ramah lingkungan merupakan solusi untuk menangani penggunaan energi yang berasal dari fosil. Energi terbarukan dapat berasal dari berbagai macam limbah, seperti limbah arang kayu alaban dan sekam padi. Keduanya merupakan limbah yang jarang sekali untuk dimanfaatkan lebih lanjut untuk mendapatkan nilai ekonomis yang tinggi. Hal ini dikarenakan belum banyak informasi yang beredar di masyarakat dalam hal pemanfaatannya lebih lanjut. Maka dari itu dilakukan penelitian untuk mengetahui bagaimana pengaruh variasi komposisi dan jenis perekat (tapioka dan sagu) terhadap sifat fisik briket (kadar air (water content), kadar abu (ash content), kadar zat terbang (volatile matter), kadar karbon terikat (fixed carbon) dan nilai kalor) pada briket limbah arang kayu alaban dan sekam padi. Terdapat lima variasi komposisi dengan perbandingan limbah arang kayu alaban dan sekam padi yaitu 90% : 10%, 70% : 30%, 50% : 50%, 30% : 70%, 10% : 90%. Menggunakan perekat yang terbuat dari tapioka dan sagu. Hasil penelitian menunjukkan peningkatan limbah arang kayu alaban dan dengan perekat sagu menghasilkan sifat fisik terbaik karena kadar air, abu, dan zat terbangnya rendah sedangkan kadar karbon terikat dan nilai kalornya tinggi. Berdasarkan SNI 01-6235-2000 didapatkan briket terbaik yaitu menggunakan komposisi limbah arang kayu alaban dan sekam padi sebesar 90% : 10% dengan perekat sagu menghasilkan kadar air sebesar 0.54%, kadar abu 4.70%, kadar zat terbang 42.02%, kadar karbon terikat 52.73% dan nilai kalor 5828 kal/gr.
KARAKTERISTIK BRIKET LIMBAH ARANG KAYU ALABAN BERPEREKAT TAPIOKA Andy Nugraha; Muhammad Nizar Ramadhan
MULTITEK INDONESIA Vol 16, No 2 (2022): Desember
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/mtkind.v16i2.5980

Abstract

AbstrakDesa Tapuk Kecamatan Limpasu Kabupaten Hulu Sungai Tengah merupakan daerah yang banyak ditumbuhi pohon alaban. Pohon ini dimanfaatkan warga sebagai bahan baku pembuatan arang kayu. Dari proses pembuatan arang kayu ini dihasilkan limbah berupa serpihan-serpihan kecil arang kayu yang tidak memiliki nilai ekonomis. Serpihan-serpihan kecil arang kayu alaban masih memiliki nilai kalor yang baik sehingga dapat dimanfaatkan sebagai bahan baku briket. Untuk mengetahui karakteristik briket dari limbah arang kayu alaban, maka perlu dilakukan pengujian proximate dan uji bakar. Metode yang digunakan adalah secara eksperimental. Briket limbah arang kayu alaban dan perekat tepung tapioka dibuat dengan persentase 95%:5%, 90%:10%, dan 85%:15%. Briket limbah arang kayu alaban selanjutnya di lakukan pengujian di laboratorium Baristand Banjarbaru dan laboratorium Teknik Mesin Universitas Lambung Mangkurat (ULM). Dari pengujian proximate diketahui bahwa kadar air, abu, dan zat-zat terbang (volatile matter) meningkat seiring bertambahnya persentase perekat briket, sedangkan karbon terikat (fixed carbon) dan nilai kalornya menurun. Dari pengujian bakar diketahui meningkatnya persentase perekat juga turut meningkatkan penyalaan awal briket dan laju pembakarannya, sedangkan lama pembakaran dan temperaturnya mengalami penurunan. Sehingga dapat ditarik kesimpulan bahwa peningkatan persentase perekat mempengaruhi sifat fisik dan karakteristik pembakaran briket limbah arang kayu alaban. AbstractTapuk Village, Limpasu District, Hulu Sungai Tengah Regency is an area that is overgrown with alaban trees. Residents use this tree as raw material for making wood charcoal. From making wood charcoal, waste is produced as small pieces of wood charcoal with no economic value. Tiny flakes of alaban wood charcoal still have a good calorific value so they can be used as raw materials for briquettes. To determine the characteristics of briquettes from alaban wood charcoal waste, it is necessary to do a proximate test and a fire test. The method used is experimental. Alaban wood charcoal waste briquettes and tapioca flour adhesives were made with percentages of 95%:5%, 90%:10%, and 85%:15%. The alaban wood charcoal waste briquettes were tested at the Baristand Banjarbaru laboratory and the Mechanical Engineering laboratory at Lambung Mangkurat University (ULM). The proximate test shows that the water, ash, and volatile matter content increases with the increase in the percentage of briquette adhesive, during the fixed carbon and calorific value decrease. From the combustion test, it is known that the increase in the percentage of adhesive also increases the initial ignition of the briquettes and their burning rate, during the duration of combustion and the temperature decrease. So it can be concluded that the increase in the percentage of adhesive affects the physical properties and characteristics of burning charcoal briquettes of alaban wood waste.
Pengolahan Sampah dan Pemanfaatannya Sebagai Bahan Baku Energi Alternatif Pada Bank Sampah Urban Dewan Barabai Andy Nugraha; Mastiadi Tamjidillah; Herry Irawansyah; Trendy Pratama; M. Zainul Rusdi; Aris Fadilah
Jurnal Pengabdian ILUNG (Inovasi Lahan Basah Unggul) Vol 3, No 2 (2023)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/ilung.v3i2.9660

Abstract

Sampah jumputan padat memiliki kadar air rendah selain itu sampah juga mempunyai nilai kalor cukup tinggi, setara dengan bahan bakar fosil seperti bensin dan solar. Untuk itu, penanganan sampah jumputan padat yang efektif adalah dengan memanfaatkannya sebagai bahan baku energi alternatif, salah satunya adalah dibuat pellet sampah jumputan padat yang dapat digunakan sebagai bahan bakar co-firing boiler pada PLTU dengan mengurangi pemakaian bahan bakar berbahan bakar fosil dari pembangkit listrik. Bank Sampah Urban Dewan di Barabai kabupaten Hulu Sungai Tengah saat ini berusaha untuk mengurangi polusi sampah dan membantu pengelolaan sampah sekitar menjadi sesuatu yang lebih berguna dan bernilai. Bank Sampah Urban Dewan dapat menjadikan potensi sampah yang telah dikumpulkan menjadi sesuatu yang bernilai ekonomis. Sehingga perlu adanya upaya untuk mengatasi permasalahan tersebut, yaitu dengan sosialisasi pemanfaatan, pengolahan, dan pembuatan pellet sampah jumputan padat serta hibah bantuan alat cetak pellet sampah jumputan padat. Dari kegiatan ini dihasilkan produk olahan yang lebih berkualitas dari sampah jumputan padat serta meningkatkan produktivitas dan pendapatan komunitas Bank Sampah Urban Dewan Barabai.
Analisis Potensi Listrik Microbial Fuel Cell dengan Variasi Substrat Air Cucian Beras dan Limbah Kulit Pisang Andy Nugraha; Aji Nihin; Pathur Razi Ansyah; Apip Amrullah; Gunawan Rudi Cahyono
Buletin Profesi Insinyur Vol 7, No 1 (2024): Buletin Profesi Insinyur (Januari-Juni)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/bpi.v7i1.222

Abstract

Microbial Fuel Cell (MFC) merupakan teknologi penghasil listrik sederhana dengan memanfaatkan metabolisme bakteri pengurai. Penelitian-penelitian yang telah dilakukan yaitu dengan variasi berbagai macam bahan substrat, anoda, dan katoda, tetapi belum ada yang menggunakan kombinasi substrat air cucian beras dan limbah kulit pisang kepok. Sehingga dalam penelitian ini dilakukan penelitian potensi tegangan listrik yang bisa dihasilkan dari  MFC substrat air cucian beras dan limbah kulit pisang kepok guna menambah khasanah ilmu pengetahuan dalam bidang MFC. Penelitian MFC menggunakan metode penelitian eksperimental untuk mencari hubungan sebab-akibat antara variabel bebas (substrat dan waktu inkubasi) dan variabel terikat (tegangan listrik) melibatkan pengendalian dan pengaturan variabel bebas untuk menentukan dampak yang dihasilkan pada variabel terikat. Tiga variasi substrat digunakan dalam eksperimen ini, yaitu substrat air cucian beras, substrat kulit pisang kepok, dan substrat campuran. Pengambilan data dilakukan selama 480 menit per hari dengan interval pengukuran setiap 20 menit. Setiap variasi substrat menghasilkan 3 sistem MFC, sehingga totalnya ada 9 sistem MFC. Dari hasil penelitian yang telah dilakukan didapatkan potensi listrik yang paling baik, yaitu variasi substrat campuran mempunyai  tegangan listrik yang paling tinggi, pada hari kelima sebesar 259 mV.Kata kunci: microbial fuel cell (mfc), tegangan listrik, substrat air cucian beras, kulit pisang kepok
ANALISIS VARIASI SUBSTRAT AIR CUCIAN BERAS DAN KULIT PISANG MICROBIAL FUEL CELL TERHADAP ARUS LISTRIK Nugraha, Andy; Nihin, Aji; Syarief, Akhmad
Scientific Journal of Mechanical Engineering Kinematika Vol 8 No 2 (2023): SJME Kinematika Desember 2023
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v8i2.266

Abstract

Microbial fuel cell (MFC) is a technology that utilizes the biological activity of microorganisms to produce electricity from organic energy in the form of waste. Waste that is often encountered in everyday life, some of which are rice washing water and banana peel waste, which are easy to find and are often thrown away without being used, even though they contain organic content, which is a food source for microbes, which can later be converted into metabolic products from these microbes to produce electricity. Electricity within the microbial fuel cell (MFC) system. The microbial fuel cell in this research used a variety of substrates of rice washing water, banana peels and a mixed substrate of rice washing water and banana peels, as well as variations in incubation times of 3, 5 and 7 days. From the research that has been carried out, it is known that variations in the substrate mixture of rice washing water and banana peels (50%; 50%) have the greatest electric current, namely 0.262 mA at an incubation time of 5 days. In all substrate variations, there was an increase in electric current on the 3rd and 5th days of incubation and a decrease on the 7th
ANALISA UNJUK KERJA INDUCED DRAFT FAN PLTU ASAM-ASAM UNIT 3 DAN 4 Syarief, Akhmad; Nugroho, Wisnu Setyo; Nugraha, Andy
INFO-TEKNIK Vol 21, No 2 (2020): INFOTEKNIK VOL. 21 NO. 2 DESEMBER 2020
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v21i2.10053

Abstract

Throughout the year 2015, PLTU Asam Asam Unit 3 and 4’s Induced draft fans frequently having issues. These issues were affects customer’s elecricity consumption because of load generated from PLTU Asam Asam unit 3 and 4 is was decreased heavily, seldom made the unit shut down for maintenance. This issues was being discussed and investigated to find the source and solutian to fix it. After the investigation, it is found that fly ash who was being carried by flue gas through IDF was stuck to fan’s blade and create unbalance in its rotation. Next modification was applied to fly ash transmitter to make sure its operating continous because it has been stopped for a while. The effect of this modification is quite significant if we compare data from before and after modification, it can be see that derating and shutdown because of IDF problem is fewer than what it was before modification.
Effect of Variation of Mixture (Wood Gelam+Rice Husk) on Bio-Pellet on the Value of Temperature, Rate and Pressure of Combustion Subagyo, Rachmat; Nugraha, Andy; Isworo, Hajar; Pratama, Trendy; Rusdi, M. Zainul
Civil and Environmental Science Journal (CIVENSE) Vol. 5 No. 2 (2022)
Publisher : Fakultas Teknik Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.civense.2022.00502.5

Abstract

The increasing demand for energy causes the depletion of fuel fossil. To overcome this, it is necessary to utilize biomass and biomass waste. The purpose of this study was to simulate the effect of bio-pellet density on temperature, rate and pressure of combustion made from a mixture of gelam wood and rice husk. The method uses ANSYS simulation with literature review. The results showed that the increasing composition of rice husks had an effect on the decreasing combustion rate, this was due to the calorific value of the pellets making up the material. Where the lower calorific value of rice husk has an effect on the rate of combustion. Pellets that have a large density affect the rate of combustion so that it extends the burning time. The density of pellets is influenced by the pressure of pellet molding, the greater the pressure makes the fuel denser and has a large density. The highest combustion air pressure occurs at 100% gelam composition and the lowest at 100% husk composition. This shows that the addition of rice husk composition reduces the combustion pressure and vice versa applies to the addition of gelam composition.
Effect of Volume Fraction hybrid composite duck feathers (Anas Plathycus Borneo) - Rat Purun Fiber (Eleocharis Dulcis) With Matrix Polyester On Tensile And Bending Strength Syarief, Akhmad; Fadliyanur; Suryanta, Dhanu; Nugraha, Andy; Aufa Ramadhasari, Aulia; Setiawan, Bayu
Civil and Environmental Science Journal (CIVENSE) Vol. 5 No. 2 (2022)
Publisher : Fakultas Teknik Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.civense.2022.00502.10

Abstract

Alabio ducks (Anas Plathycus Borneo) developed in the Alabio area of Hulu Sungai Utara Regency, South Kalimantan with a duck population in 2006 recorded at 3,487,002 heads. So far, alabio ducks have only been used for meat and eggs, even though the feather part of this one poultry can also be used as a composite raw material because of its relatively strong and elastic nature. To improve the quality of the composite, duck feathers are combined with rat purun fibers (eleocharis dulcis) so that they become Hybrid composites. Fraksi volume Hybrid composite Duck Feathers and Rat Purun Fiber are as follows 10% : 90 %, 20% : 80%, 30% : 70%, 40% : 60%, 50% : 50%, 60% : 40%, 70% : 30%, 80% : 20%, 90% : 10%. This study used experimental methods. From the results of the study, it is known that the value of tensile and tensile strength stress and bending strength decreased as the percentage of rat purun fibers decreased compared to the percentage of duck feathers.
Co-Authors Achmad Azhar Basyir Achmad Febrian Hidayat Agung Sugeng Widodo Aji Nihin Akhmad Ghiffary Budianto Akhmad Syarief Akhmad Syarief Annafi, Helmi Hafidz Anugrahto, Ripal Apip Amrullah Aris Fadilah Aufa Ramadhasari, Aulia Bayu Setiawan Dwi Suci Adianto Fadliyanur Fadliyanur, Fadliyanur Geovani Glen Supit Gunawan Rudi Cahyono Herry Irawansyah Isworo, Hajar M. Zainul Rusdi Mastiadi Tamjidillah Mastiadi Tamjidillah, Mastiadi Ma’ruf, Ma’ruf Moh Noer Afifudin Muhammad Arzy Satria Muhammad Muhammad Muhammad Nizar Ramadhan Nihin, Aji Nugroho, Wisnu Setyo Pathur Razi Ansyah Pratama, Trendy Rachmat Subagyo Rizqi Nor Al’Arisko Rusdi, M. Zainul Silalahi, Dani Surya Hamonangan Slamet Wahyudi Suryanta, Dhanu Taufik Irfansyah Sofian Trendy Pratama