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Majalah Ilmiah Pengkajian Industri
Published by Badan Pengkajian dan Penerapan Teknologi
ISSN : 14103680     EISSN : 25411233     DOI : -
Core Subject : Engineering,
Aerospace Engineering Chemical Engineering, Chemistry & Bioengineering Engineering Industrial & Manufacturing Engineering Transportation
MIPI, Majalah ilmiah Pengkajian Industri adalah wadah informasi bidang pengkajian Industri berupa hasil penelitian, studi kepustakaan maupun tulisan ilmiah terkait dalam bidang industri teknologi proses rekayasa manufaktur, industri teknologi transportasi dan kelautan, serta industri teknologi hankam dan material. Terbit pertama kali pada tahun 1996 frekuensi terbit tiga kali setahun pada bulan April, Agustus, dan Desember. MIPI diterbitkan oleh Deputi Bidang Teknologi Industri Rancang Bangun dan Rekayasa-BPPT
Arjuna Subject : -
Articles 601 Documents
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ABSTRACTS Febriyanti, Eka
Majalah Ilmiah Pengkajian Industri Vol 10, No 1 (2016): Majalah Ilmiah Pengkajian Industri
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (370.797 KB) | DOI: 10.29122/mipi.v10i1.1761

Abstract

Penerapan Metode AHP dalam Proses Pemilihan Alat Angkut Berat pada Konstruksi Terowongan Layang Bawah Laut Purnomo, Dwi Agus
Majalah Ilmiah Pengkajian Industri Vol. 8 No. 2 (2014): Majalah Ilmiah Pengkajian Industri
Publisher : Deputi TIRBR-BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2590.943 KB) | DOI: 10.29122/mipi.v8i2.3651

Abstract

Metode Analytic Hierarchy Process (AHP) dikembangkan oleh Thomas L. Saaty pada tahun 1970an. Metode ini adalah merupakan sistem pembuat keputusan dengan menggunakan model matematis. Pemanfaatan dari metode AHP ini akan dapat membantu dalam menentukan prioritas dari beberapa kriteria dengan melakukan analisa perbandingan berpasangan dari masing-masing kriteria. Dalam sistem pengelolaan kinerja yang dimaksud dengan kriteria tersebut, yang selanjutnya disebut Kinerja Pengelolaan Indikator (KPI). Penerapan metode AHPdalam proses pemilihan alat angkut berat diaplikasikan pada proyek pembangunan terowongan layang bawah laut di Kepulauan Seribu dengan mengidentifikasi atribut kriteria dan alternatif untuk, menentukan besar prioritas atribut dan alternative. Proses analisis melalui pendekatan AHP dengan atribut kriteria- Level 1 dan alternatif-Level 2 terhadap tujuan-Level 0; maka dipilih jenis alat angkut berat sebagai alternatif dengan unsur kriteria tertentu.Kata kunci : AHP, Konstruksi Terowongan Layang Bawah Laut.AbstractAnalytic Hierarchy Processherein after referred as AHP is a method that has developed by Thomas L. Saaty in year 1970. This method is likely a decision making system within using mathematic model. Utilization of AHP method that can help people to decide several criteria priority by pare analysis of each criteria. In managing system of performance mentioned with these criteria that can referred as Indicator Management Performance. Application of AHP method in processing of heavy equipment selection will be applied in submerged floating tunnel construction project at Kepulauan Seribu by identify criteria attribute and alternative to decide priority vector of these attribute and alternative. Analyzing process thorough AHP nearby within attribute criteria-Level1 and alternative criteria-Level2 face to objective criteria-Level 0, therefore it can be selected the heavy equipment as the alternative with the element criteria.Key words : AHP, Submerged Floating Tunnel Construction.
KERUSAKAN PADA MATERIAL BAUT PIN AKIBAT PATAH LELAH = CAUSE OF PIN BOLT FAILURE IS FATIQUE FRACTURE Nusa, M. N. Setia
Majalah Ilmiah Pengkajian Industri Vol 9, No 3 (2015): Majalah Ilmiah Pengkajian Industri
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1287.368 KB) | DOI: 10.29122/mipi.v9i3.2845

Abstract

Baut Pin atas pada klem sebagai koneksi ketiga kaki anjungan, yang berada didalam air laut mengalami kerusakan, patah dan terdapat korosi. Dilakukan penelitian untuk mengetahui penyebab terjadinya kerusakan baut tersebut dan mencari solusi agar kejadian tidak terulang pada masa yang akan datang. Untuk itu dilakukan pemeriksaan secara visual, fraktografi, metalografi, uji kekerasan dan uji komposisi kimia dan pemeriksaan SEM-EDS. Dari hasil pemeriksaan didapatkan struktur mikro baut pin berupa martensit temper dengan pengotor sulfit arah memanjang serta temuan kerusakan dengan ciri-ciri patah lelah yang ditandai dengan adanya beach marck dan radial fanlike. Beban yang diterima pada patah lelah I adalah reversed bending, dan pada patah lelah II menerima beban geser-geser dan reversed bending. Dengan demikian penyebab kerusakan baut pin adalah patah lelah oleh beban bending dan beban geser.
EVALUASI PERFORMA GERAK RANPUR MEDIUM TANK INDONESIA (MTI) GUNA PEMENUHAN PERSYARATAN TEKNIS OPERATIONAL MILITER Rustandi, Apid; Suprianto, Agus; Pramana, Nurhadi
Majalah Ilmiah Pengkajian Industri Vol 11, No 3 (2017): Majalah Ilmiah Pengkajian Industri
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (465.62 KB) | DOI: 10.29122/mipi.v11i3.2487

Abstract

Tahun 2014 Indonesia mendatangkan kendaraan tempur angkut personil (Armor Personal Carrier) Marder-1A3 dari Austria berkelas Infantry Fighting Vehicle untuk Infantri TNI-AD. Disamping itu didatangkan juga kendaraan tempur pemukul dan penghancur yang sesuai dengan medan geografis Indonesia, jenis Tank Leopard dari Jerman untuk Kavaleri TNI-AD. Indonesia memerlukan kendaraan tempur tank kelas menengah yang sesuai dengan medan geografis, untuk mendukung mobilitas pasukan dan mempunyai daya gempur tinggi. Oleh karena itu Indonesia mengembangkan rancangan kendaraan tempur jenis tank medium. Untuk mendapatkan gambaran performa kendaraan tempur Medium Tank Indonesia sesuai dengan ketentuan teknis Kementerian Pertahanan, maka pada pengkajian di sini dilakukan tinjauan kemampuan mesin dan transmisi dari Medium Tank Indonesia dan tank Marder-1A3 sebagai pembanding. Metode yang dipakai pengkajian di sini adalah metode kuantitatif untuk menghitung performa kemampuan rancangan kendaraan tempur berdasarkan spesifikasi teknis sistem mesin dan transmisi. Selanjutnya adalah metode kualitatif yaitu evaluasi perhitungna 2D performa kemampuan kendaraan tempur terhadap persyaratan yang disyaratkan oleh regulator. Dari hasil pengkajian didapatkan bahwa performa rancangan MediumTank Indonesia dengan spesifikasi berat dan mesin yang lebih besar dibandingkan tank Marder-1A3, mampu menggerakan wahana dengan gaya translasi 223700 N serta mampu menanjak pada kemiringan  32° pada gear shift 2nd dan 40° pada gear shift 1th. Top speed yang dihasilkan dengan ratio gearbox percepatan 6 (gearshift 6th) mampu mencapai 47 mph/ 75 kmh. Secara keseluruhan rancangan kendaraan tempur Medium Tank Indonesia memenuhi ketentuan teknis yang disyaratkan Kementerian Pertahanan. 
DESIGN OF BIOGAS COOLING PROCESSING FROM POME FOR (CSTR) CONTINUOUS STIRRED TANK REACTOR SYSTEM tjahjono, endro wahju; Arfiana, Arfiana; Finalis, Era Restu; Nurdin, Ali
Majalah Ilmiah Pengkajian Industri Vol. 14 No. 2 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : Deputi TIRBR-BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v14i2.3856

Abstract

POME (Palm Oil Mill Effluent) can be used as for biogas production, with the main content of (65%) methane gas (CH4) and 35% Carbon Dioxide (CO2), H2S, and H2O gases. Apart from being a gas fuel and a source of electricity generation, biogas from POME waste as well as a waste processor becomes more environmentally friendly (according to quality standards). In order to support the process production of biogas from POME by using Continuous Stirred Tank Reactors (CSTR), it is necessary to decrease POME’s temperature to meet the requirements of the reactor operating conditions. Cooling process by using a Cooling Tower through direct contact between fluids can be a good alternative to be used as a POME cooling method because of its effectiveness in heat exchange and smaller area needed than an open ponds. The type of cooling tower used is the Induced Draft Cooling Tower. In cooling tower design, the steps involved in determining the basic design, calculation of tower dimensions, basin, fan power, losses, and cooling air requirements. Based on the calculation, the tower dimensions determine a height of 5 m, length of 3.6 m, and width of 2.5 m, while the basin cooling tower dimensions determine a height of 2.7 m, length of 3.6 m, and width of 2.5 m, fan power of 5 hp. The cooling air requirement for the POME cooling process is 82,895.14 kg/hour. Keywords : POME; Cooling Tower; CSTR; Fuel; Biogas
APPLICATION OF TEMPERATURE CONTROL SYSTEMS AT THE CATALYST ACTIVATION STEP IN THE METHANOL TESTPLANT Adiprabowo, Arya Bhaskara; Pertiwi, Astri; Rahmawati, Nurdiah; Saputro, Frendy Rian; Valentino, Novio; Anindita, Hana Nabila; Septriana, Desy
Majalah Ilmiah Pengkajian Industri Vol. 15 No. 1 (2021): Majalah Ilmiah Pengkajian Industri
Publisher : Deputi TIRBR-BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Catalyst activation is an important step in methanol synthesis process, achieved by the reduction of CuO precursor producing Cu0 active sites.  Testplant’s temperature operation shall be maintainted at 220°C in order to maximize the CuO reduction process in the catalyst activation step. A temperature control system shall be applied in methanol testplant to maintain the temperature during reduction process, due to sensitivity of reduction process to temperature variation and possibility of disturbance such as change in gas flow rate which could affects the operating temperature. Temperature control systems are tested by using step response at the desired setpoint, which is 220°C at pre-heater and reactor and 60°C at sampling line. The tests are conducted by changing the setpoint value at temperature controller and previously stable flow gas in the system (disturbance rejection). The temperature control system proved to be able to response well during the test. In the end, methanol is produced from syngas, indicating catalyst activation success. Keywords: Catalyst Activation; Methanol Testplant; Temperature Controller
FAILURE ANALYSIS ON SLINGER DISK PIPE OF PURIFIED TEREPHTALIC ACID (PTA) VESSEL Sukandar, Sukandar; Triwibowo, Triwibowo; Heryana, Yana
Majalah Ilmiah Pengkajian Industri Vol. 14 No. 2 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : Deputi TIRBR-BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v14i2.4027

Abstract

Slinger disk pipe is a rotary part of PTA vessel with function as anti-fog by swinging hot water to the shell wall to remove solid PTA at the shell wall. Failure took place on this slinger disk pipe. The purpose of failure analysis is to find the root cause of failure. Methods conducted in this failure analysis are examination and testing of fractography, metallography, chemical composition, hardness, and calculation of bending stress. Examination on the fracture surface by fractographic method revealed fatigue fracture with the presence of multiple beachmarks. The position of those multiple beachmarks gave indication of alternation rotation of slinger disk pipe. Examination by metallographic method revealed that initial cracks initiated from heat affected zone of pipe and strengthening plates weld joint. However, result of chemical composition examination and hardness test showed that material of slinger disk pipe were in accordance with lean duplex 2205. Calculation of bending stress gave supporting data of various load effects to slinger disk pipe. Therefore, failure of the slinger disk pipe was caused by fatigue fracture which were initiated from head affected zone of pipe and strengthening plates weld joint.
OPTIMIZATION OF EDIBLE FILM FORMULA BASED ON MAIZENA, CARRAGEENAN, AND RICE BRAN FOR HAND CANDY PACKAGING Purwoto , Heri; Ismawanti , Ratih Dwi; Harianto, Harianto; Djafar , M. Jusuf; Putri , Widya Dwi Rukmi; Murtini , Erni Sofia
Majalah Ilmiah Pengkajian Industri Vol. 14 No. 3 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : Deputi TIRBR-BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v14i3.4032

Abstract

Plastic packaging has dominated the waste, and the number is increasing every year. Candy plastic packaging waste is most often considered trivial because of its small size, so it is usually disposed of carelessly. Due to its non-biodegradable, it causes environmental pollution. Edible film packaging is an alternative to reduce the impact of candy packaging waste pollution. The purpose of this study was to obtain the optimum formula of the edible film between corn starch, carrageenan, and rice bran as a hard candy packaging with the Response Surface Methodology (RSM) Central Surface Composite Design using the Design Expert 10.0.7. The prediction data obtained is then verified and tested by t-test at a 5% reliance interval.The optimum formulation of RSM results is 3.4% of corn starch, 1.1% of carrageenan and 0.38% of rice bran with predicted response of water content of 14.51%, WVTR 61,06 g/m2/hour, viscosity of 258.8 cP, tensile strength of 107.9 kgf/cm2, elongation of 19.41%, and modulus of response young 586.28 kgf/cm2. The verification of the optimum formula had a moisture content of 14.37%, WVTR 63.34 g/m2/hour, viscosity of 244.9 cP, tensile strength of 96.9 kgf/cm2, elongation of 20.96%, and young modulus of 462.49 kgf/cm2. Key Words : Corn starch; Carrageenan; Rice bran; Formula optimization; Edible film; Hard candy  
EXHAUST TEMPERATURE ANALYSIS OF UAV PROPELLER MATERIALS Mukti, Suherman; Megawanto, Fadli Cahya; Arthaa, Hari
Majalah Ilmiah Pengkajian Industri Vol. 14 No. 2 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : Deputi TIRBR-BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v14i2.4036

Abstract

This paper presents an exhaust temperature analysis of a UAV Propeller Material to maintain the performance of the propulsion system during operation, especially in a long-range condition. A pusher Propeller experiences direct contact with heat from the exhaust gas. In this study, a Beechwood material with a protective layer of corrosion prevention is used as a propeller blade that works at a range of high temperatures. An experimental methodology was carried out to analyse the strength and propeller deformation. The results of this experimental study show that conservatively the propeller will be heated to 32.9°C. Since this is below the temperature limit, the exhaust gas to pusher propeller on UAV does not affect the propeller performance.Key Words: Exhaust; Temperature; UAV; Propeller; Wood
CAMERA-BASED DETECTORS AS AN ALTERNATIVE TO DETECTING TRAINS IN A LEVEL CROSSING IMPLEMENTATION Luthfiyah, Hilda; Adam, Okghi; Anugrah, Teddy; Mantara, Gilang
Majalah Ilmiah Pengkajian Industri Vol. 14 No. 2 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : Deputi TIRBR-BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v14i2.4077

Abstract

Based on data from Indonesia Directorate General of Railways in 2017, it is mentioned that the problems at the level crossing of railroad tracks are mostly caused by human error factors themselves. The current train headway and the crossing system that is still operated manually can increase the potential for accidents. Therefore, the development of alternative camera-based detectors to support the railroad crossing automation system is needed at this time. The development of this camera-based train detector uses the basic program You Only Look Once (YOLO), where YOLOv3 has proven to be accurate enough to detect moving objects. The development results show promising results for several types of alternative trains. Key Words : Detectors; Train; YOLOv3

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