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Mastiadi Tamjidillah
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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PENGOLAHAN LIMBAH PLASTIK DI WILAYAH KEL.CEMPAKA MENGGUNAKAN MESIN PELUMER PLASTIK Rudi Siswanto; Abdul Ghofur; Mastiadi Tamjidillah
ELEMEN : JURNAL TEKNIK MESIN Vol 7 No 1 (2020)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v7i1.102

Abstract

Sampah plastik masih menjadi permasalahan besar di Kelurahan Cempaka Kota Banjarbaru. Diperkirakan setiap harinya terdapat 2-3 karung sampah plastik yang menumpuk berasal dari limbah warga. Sebagian besar berupa kantong plastik kemasan, cup dan botol bekas minuman. Salah satu usaha dalam mewujudkan konsep zero waste adalah mendaur ulang (recycle) sampah plastik tersebut, yaitu limbah plastik diolah menjadi produk paving block. Oleh karena itu, diperlukan alat untuk melumerkan plastik tersebut. Metode yang digunakan adalah dengan melakukan studi lapangan dan membuat mesin pelumer plastik dengan dimensi panjang 60,3 cm diameter 60 cm, kapasitas aliran plastik cair adalah 1,25 kg/menit dan putaran pengaduk adalah 40 Rpm, dengan kapasitas produksi 20 buah paving block/jam, suhu untuk melumerkan plastik adalah 250oC-260oC. Adapun waktu yang diperlukan untuk melumerkan plastik HDPE adalah 60 menit dan Plastik PET 30-40 menit. Hasil uji bending paving block rata-rata sebesar 11,58 MPa.
PENGARUH UKURAN SERBUK ARANG KAYU ULIN TERHADAP EFEKTIVITAS PEMURNIAN BIOGAS Andri Purwata; Mastiadi Tamjidillah
JTAM ROTARY Vol 1, No 2 (2019): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v1i2.1753

Abstract

This study aims to determine the effect of ironwood charcoal powder size on the effectiveness of biogas purification and generator-set performance. This research was carried out by flowing biogas from sanitary landfill to biogas purification insulator containing adsorption media with charcoal varying charcoal size variations, namely size 20, 30 and 40 mesh, then biogas stored in a storage tube then flowed to the chamber for CO2 level reading and CH4 uses a gas analyzer. From this study the following results were obtained: Biogas without charcoal (CO2 26514.66 ppm and CH4 101.07 ppm), Biogas with a size of 20 mesh (CO2 20270.08 ppm, CH4 458.35 ppm and effectiveness of 23.55%), with a size of 30 mesh (CO2 14273.31 ppm, CH4 658.75 ppm and effectiveness of 46.16%), with a size of 40 mesh (CO2 12092.66 ppm, CH4 3161.04 ppm and effectiveness of 54.39%). For the results of testing the performance of generator sets using biogas fuel which has been purified with ironwood charcoal with a size of 40 mesh, ie for no load, rotation is obtained at 3465.0 rpm, temperature 102 0C, and voltage 240 V (stable), with load 350 W obtained rotation 3203.8 rpm, temperature 236 0C, and voltage 150-240 V (unstable), with a load of 700 W obtained rotation 3360.9 rpm, temperature 220 0C, and voltage 100-200 V (unstable). Keywords: Biogas Purification, Variation in Mesh Size, Ironwood Charcoal. Keywords: Purification of Biogas, Mesh Size Variations, Ulin Wood Charcoal
ANALISIS KEGAGALAN OPERASI COOLING TOWER FAN UNIT 2B PLTU ASAM ASAM Andhika Bayu Oktavianto; Mastiadi Tamjidillah
JTAM ROTARY Vol 2, No 1 (2020): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v2i1.2005

Abstract

Salah satu pembangkit listrik di Indonesia adalah pembangkit listrik Asam Asam yang terletak di dekat mulut tambang batubara. Setiap pembangkit listrik membutuhkan sejumlah besar air sebagai fluida kerja atau sebagai air pendingin. Pembangkit Listrik Tenaga Uap Asam Asam Batubara menggunakan air sungai sebagai air pendingin dengan mesin pendingin sebagai mesinnya. Pada bulan September 2017, menara pendingin unit 2B dari PLTU Asam Asam Batubara mengalami kegagalan operasi karena spacer rusak dan membuat PLTU Asam Asam Batubara mengalami penurunan dan kerugian lainnya. Tim teknik mendiagnosis kasus tersebut karena ketidakselarasan. Berdasarkan uraian akar penyebab masalah, ada tiga masalah utama yang mungkin terjadi yaitu: misalignment, unbalance, dan rotasi gearbox berat. Misalignment adalah pemicu utama untuk serangkaian masalah yang menyebabkan kegagalan operasi menara pendingin. Maka perlu mempelajari masalah utama yang menyebabkan kegagalan operasi menara pendingin untuk ditindaklanjuti dengan pemeliharaan preventif sesuai dengan kondisi saat ini untuk mencegah kegagalan yang serupa di unit 2B dan unit serupa lainnya. One of the power plants in Indonesia is the Asam Asam power plant located near the mouth of the coal mine. Each power plant requires large amounts of water as a working fluid or as a cooling water. Asam Asam Coal Fired Steam Power Plant uses river water as a cooling water with the cooling towers as its engine. In September 2017, the cooling tower unit 2B of Asam Asam Coal Fired Steam Power Plant experienced an operation failure because of the spacer was broken and made the Asam Asam Coal Fired Steam Power Plant to experience derating and other losses. The engineering team diagnoses the case due to misalignment. Based on the description of the root causes of the problem, there are three main problems that might occur namely : misalignment, unbalance, and heavy gearbox rotation. Misalignment is the main trigger for a series of problems causing failure of cooling tower operations. Then it is necessary to study the main problems causing the failure of the cooling tower operation to be followed up with preventive maintenance in accordance with the current conditions to prevent similar failures in unit 2B and other similar units.
PENGARUH JARAK ANTAR ELEKTRODA PLAT STAINLESS STEEL TERHADAP PRODUKTIFITAS DAN EFISIENSI GENERATOR HHO MENGGUNAKAN METODE ELEKTROLISIS AIR SUMUR DENGAN KATALIS NaHCO3 Khairul Sahwan; Mastiadi Tamjidillah
JTAM ROTARY Vol 2, No 2 (2020): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v2i2.2415

Abstract

Gas HHO merupakan energi alternatif yang dapat menggantikan sumber energi fosil. Gas HHO dapat diproduksi dengan beberapa cara termasuk elektrolisis air. Dalam penelitian ini peneliti menggunakan metode elektrolisis air sumur menggunakan katalis NaHCO3 dalam penelitian ini. Peneliti menggunakan variasi jarak antar roda yaitu 2mm, 4mm, dan 6mm. Dari hasil penelitian disimpulkan bahwa waktu yang dibutuhkan untuk memproduksi gas HHO pada 50 pertama adalah yang tercepat pada jarak 2 mm yaitu 95 detik. Sedangkan paling lambat di jarak 6 mm, 123 detik. Laju aliran gas HHO pada jarak 2 mm lebih besar dari pada laju alir pada jarak 4 mm dan jarak 6 mm. Semakin kecil jarak antar pelat maka semakin cepat pula gas HHO yang dihasilkan. Pada saat proses elektrolisis, didapatkan tegangan yang lebih rendah dengan jarak 6 mm yaitu 3,4 volt sedangkan arus terendah diperoleh pada jarak 2 mm yaitu 4,25 ampere. Energi listrik terendah diperoleh pada jarak 2 mm yaitu 50 ml start menggunakan energi 1266,35 joule. Dari beberapa faktor yang mempengaruhi efisiensi generator HHO didapatkan efisiensi tertinggi pada jarak 2 mm yaitu rata-rata 37,90% dan efisiensi terendah pada jarak 6 mm yaitu 20,58%, sehingga diperoleh efisiensi pelat 2 mm. HHO gas is an alternative energy that can replace fossil energy sources. HHO gas can be produced in several ways including water electrolysis. In this study the researchers used the electrolysis method of well water using NaHCO3 catalyst in this study. The researchers used variations in the distance between the wheels, namely 2mm, 4mm, and 6mm. From the research, it was concluded that the time needed to produce HHO gas in the first 50 was the fastest at a distance of 2 mm, which is 95 seconds. While at the latest at a distance of 6 mm, 123 seconds. HHO gas flow rate at a distance of 2 mm is greater than the flow rate at a distance of 4 mm and a distance of 6 mm. The smaller the distance between plates, the faster the HHO gas will be generated. Which is used during the electrolysis process, where the lower voltage is obtained with a distance of 6 mm which is 3.4 volts while the lowest current is obtained at a distance of 2 mm which is 4.25 amperes. The lowest electrical energy is obtained at a distance of 2 mm ie 50 ml starting using energy of 1266.35 joules From several factors that affect the efficiency of the HHO generator, the highest efficiency is found at a distance of 2 mm, which is an average of 37.90% and the lowest efficiency at a distance of 6 mm, which is 20.58%, so that the efficiency is obtained plate 2 mm.
PENENTUAN PARAMETER PROSES PEMBUBUTAN TERHADAP KEKASARAN PERMUKAAN MATERIAL ST 42 DENGAN METODE TAGUCHI Ismail Mansyursyah; Mastiadi Tamjidillah
JTAM ROTARY Vol 2, No 2 (2020): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v2i2.2414

Abstract

Penelitian ini bertujuan untuk mengetahui parameter apa saja yang berpengaruh terhadap kekasaran permukaan pada proses permesinan bubut konvensional dengan material ST 42 dan mengetahui parameter apa saja yang menghasilkan kekasaran permukaan yang baik dengan menggunakan metode Taguchi. Berdasarkan dari penelitian yang telah dilakukan maka diketahui tidak ada parameter yang berpengaruh terhadap kekasaran permukaan material baja ST 42. Parameter yang menghasilkan kekasaran permukaan material baja ST 42 yang paling baik adalah jenis mata pahat JCK dengan feeding 0,115 dan kehalusan 3,42 µm. This study aims to determine which parameters affect the surface roughness of the conventional lathe machining process with ST 42 material and to find out which parameters produce good surface roughness using the Taguchi method. Based on the research that has been done, it is known that there are no parameters that affect the surface roughness of the ST 42 steel material. The parameter that produces the best surface roughness of ST 42 steel material is the type of JCK tool blade with a feeding of 0.115 and a smoothness of 3.42 µm.
ANALISA PENGOPERASIAN 1 CWP DAN 2 CWP PADA COOLING WATER SYSTEM PLTU ASAM ASAM UNIT 4 Juni Eko Hartanto; Mastiadi Tamjidillah
Scientific Journal of Mechanical Engineering Kinematika Vol 4 No 2 (2019): SJME Kinematika Desember 2019
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (808.154 KB) | DOI: 10.20527/sjmekinematika.v4i2.111

Abstract

Electric power is used to support daily life, therefore electrical energy must be continually developed considering the increasing need for this energy. Therefore it is necessary to do preventive, corrective maintenance and efforts to optimize the generating unit such as savings in the production process, one of which is by analyzing the operation of a Circulating Water Pump CWP at the Unit 4 Acid-Acid Power Plant. The formulation of the problem in this study is that in the manufacturer's design for 65 MW full load 2 CWP pumps are needed, this can be seen from the pump specification data, but in fact with only a Circulating Water Pump CWP can produce a full load of 65 MW.
Co-Authors Abdul Ghofur Andhika Bayu Oktavianto Andri Purwata Ismail Mansyursyah Juni Eko Hartanto Khairul Sahwan Rudi Siswanto, Rudi