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INDONESIA
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 12 Documents
 1   2 
Search results for , issue "Vol. 14 No. 1 (2020): Majalah Ilmiah Pengkajian Industri" : 12 Documents clear
FATIGUE AND CORROSION PHENOMENON ON FAILURE OF WATER WALL TUBE BOILER Eka Febriyanti; Amin Suhadi; Laili Novita Sari
Majalah Ilmiah Pengkajian Industri Vol. 14 No. 1 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v14i1.3565

Abstract

Water wall tube is one of a boiler components which has a function to transform water to be vapour so that it is normally called steam generating tubes. Any failure on wall tube will affect to the whole boiler system.  The purpose of this research is to find out root cause of failure of wall tube in order to avoid similar case in the future.  Research is conducted by examining and testing the specimens on all aspects including visual, fractography, metallography, chemical analysis, hardness test and tensile test. Examination on the fracture surface by fractographic method found the evidence of fatigue fracture with the presence of beachmark. Another examination on uninstalled boiler tube shows indication of fabrication defect and trans-granular cracks which allowed corrosive agent infiltrated into the microstructure of the tube. However, the result of chemical analysis and tensile test indicated that the tubes investigated are in accordance with ASTM A 210 Grade C specifications. Therefore, the failure of the tube is not caused by wrong material selection, but through the combination of fatigue fracture and corrosion attack where initiated at fabrication defect that acted as stress raisers.
POTENSI RISET DAN PENGEMBANGAN FePO4 DARI BAHAN BAKU LOKAL Fe2O3 DI INDONESIA R. Ibrahim Purawiardi
Majalah Ilmiah Pengkajian Industri Vol. 14 No. 1 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v14i1.3785

Abstract

Riset dan pengembangan baterai lithium mulai banyak dilakukan di Indonesia sejak awal dekade 2000-an. Diantara salah satu material yang dikembangkan adalah bahan aktif katoda LiFePO4,dengan harapan bahwa seluruh bahan baku pembuatan LiFePO4 diperoleh dari sumberdaya lokal. Sumber-sumber bahan baku LiFePO4 sendiri adalah LiOH atau LiOH.H2O atau Li2CO3 atau CH3COOLi sebagai sumber Li, Fe2O3 sebagai sumber Fe, dan H3PO4 sebagai sumber PO43-. Diantara berbagai sumber bahan baku tersebut, Fe2O3 dan H3PO4 dapat diperoleh dari dalam negeri, namun sumber lithium masih harus impor. Oleh sebab itu, produksi LiFePO4 kedepannya tidak dapat 100% menggunakan bahan baku lokal. Namun, terdapat satu cara yang dapat dilakukan agar menggunakan 100% bahan baku lokal, yaitu pengembangan FePO4. FePO4 ini nantinya berpotensi untuk diproduksi dan diekspor sebagai bahan baku pembuatan LiFePO4. Disamping itu, FePO4 juga memiliki nilai tambah lain sebagai bahan pelapis pencegah oksidasi pada permukaan logam. Oleh sebab itu, material ini cukup strategis untuk dikembangkan di Indonesia.
COMPARISON ANALYSIS OF RAILWAY BRIDGE MODUL FOR “I” GIRDER TYPE AND “WARREN” TRUSS TYPE Dwi Agus Purnomo; Djoko Prijo Utomo; Agung Barokah Waseso; Mira Marindaa
Majalah Ilmiah Pengkajian Industri Vol. 14 No. 1 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v14i1.3833

Abstract

The railway bridge in Indonesia, with a width of 1067 mm, was built in 1878, so that maintenance modules are needed to repair or to replace of construction modul at regular intervals. Implementation of maintenance and repairs refers to the Minister of Transportation Regulation No. 60 of 2012. Problems were encountered in the field at the BH182 Daop 2 railway bridge in Bandung due to lowering structural strength. Therefore, it was necessary to repair the bridge module with a new bridge design. The purpose of this study is to analyse and to calculate strength of the structure and to determine effectiveness of the use of construction materials on 2 alternative bridge construction selection with the type of “I" girder and the type of “Warren" Truss. Design implementation method used is to utilize Midas Civil Structure software. The loading used for railway bridges is grouped into three load groups, namely the girder's self-weight, additional dead load, and live load. Additional dead load analysed is line load including bearings, while for live load is trainset load based on loading requirements. From the results of calculations between the steel bridge “I" girder type height of 300 cm and the type of “Warren" Truss height of 600 cm, each span of 30 m showed that those were a function of the railway bridge. It would be more effective to use the type of “Warren” Truss structure that is quite able to withstand train traffic loads in accordance with applicable standards.
APPLICATION OF INSTRUMENTATION AND CONTROL SYSTEM FOR BIOGAS POWER GENERATION COMMISSIONING AT PTPN V KAMPAR PALM OIL MILL Arya Bhaskara Adiprabowo; Bambang Muharto; Hana Nabila Anindita; Nur Azimah Salehah; Dwi Husodo Prasetyo; Semuel Pati Senda; Muhamad Rodhi Supriyadi; Nesha Adeliaa; Bayu Samodra
Majalah Ilmiah Pengkajian Industri Vol. 14 No. 1 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v14i1.3865

Abstract

Biogas Power Plant (PLT) from palm oil mill effluent had been commissioned by a team from the Center of Technology for the Energy Resources and Chemical Industry, Agency for the Assessment and Application of Technology (PTSEIK-BPPT). The biogas power plant is located in PTPN V Kampar, Riau Province. A PLC (Programmable Logic Controller) has been implemented to support the operation of biogas power plant. Proper sensor selection has been done for each measurement applications. A computer and mimic panel is used as an interface for the operation of PLC. The master control system communicates with the slave control systems and Human Machine Interface (HMI) by means of ethernet communication protocol. Commissioning phase is carried out for 2 hours with a load of 450 kW. Instrumentation and control system is able to measure important variables such as fluctuation in methane numbers, pressures, and biogas flow rate to check the suitability of biogas supply in accordance to gas engine specification.
IMPACT OF THE JAKARTA - SURABAYA HIGH - SPEED TRAIN ON PASSENGERS OF THE JAKARTA - SURABAYA EXECUTIVE TRAIN CORRIDOR Djoko Prijo Utomo; Prasetyaning Diah Rizky Lestari; Sucipto Sucipto; Asep Yayat Nurhidayat
Majalah Ilmiah Pengkajian Industri Vol. 14 No. 1 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v14i1.3897

Abstract

Due to the increasing demand for travel by train in recent years, the large potential number of passengers in Jakarta - Surabaya corridor needs to be anticipated with adequate transportation system planning so that the bottlenecks on available transportation network system can be minimized. This paper analyses the potential competition between the demand of executive passenger train and Jakarta-Surabaya high-speed train which will be built by the Government as planned. This study only use travel time variables and ticket rates as independent variables between executive passenger train and high-speed train, then stated preference methods and binomial logit models are used as tools for processing data. As a result, we believe that the operation of Jakarta-Surabaya high-speed train will have a negative impact on the demand of executive passenger train on this route.
BC Endro Wahju Tjahjono
Majalah Ilmiah Pengkajian Industri Vol. 14 No. 1 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v13i3.3924

Abstract

PENGARUH PEMUAIAN PANAS TERHADAP KELURUSAN POROS TURBIN UAP Dwijaya Febriansyah; Barman Tambunan; Rudias Harmadi; Budi Noviyantoro Fadjrin
Majalah Ilmiah Pengkajian Industri Vol. 14 No. 1 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v14i1.3971

Abstract

Sebagian besar penyebab kegagalan pada mesin-mesin rotasi termasuk turbin uap adalah poros yang berputar dalam kondisi misalignment. Pada turbin uap, panas yang merambat pada casing dapat merubah dimensi turbin uap karena adanya pemuaian (thermal growth) sehingga mempengaruhi kelurusan poros saat berputar. Nilai thermal growth ini perlu diketahui sebagai salah satu spesifikasi dalam penyetelan poros sebelum turbin beroperasi. Dalam studi ini,  thermal growth pada turbin uap 3 MW diinvestigasi dengan mengukur kelurusan poros dalam kondisi panas setelah berhenti berputar dan dingin menggunakan metode laser alignment. Hasil pengukuran menunjukkan bahwa thermal growth memberikan pengaruh terhadap kelurusan poros karena adanya selisih nilai kelurusan poros saat kondisi panas dan dingin yaitu 1.0 thous (gap) dan 2.8 thous (offset) pada bidang vertikal kemudian -1.0 thous (gap) dan -2.7 thous (offset) pada bidang horisontal.Kata kunci : Turbin uap, Thermal growth, Kelurusan porosMost of the causes of rotating machines failure including steam turbine is shaft misalignment. In the steam turbine, heat that travels to the casing can change steam turbine dimension due to thermal growth which affects the shaft alignment. Thermal growth values needs to be known as one of the specifications in shaft alignment setup. In this study, thermal growth on 3 MW steam turbine was investigated by measuring the shaft alignment in hot after shut down and cold condition using laser alignment method. Results show that thermal growth has an influence on shaft alignment due to difference of alignment values when hot and cold conditions, namely 1.0 thous (gap) and 2.8 thous (offset.) in vertical plane then -1.0 thous (gap) and -2.7 thous (offset.) in horizontal plane.Key Words : Steam Turbine, Thermal growth, Shaft alignment 
VEHICLE IDENTIFICATION IN PARKING AREAS USING ADAPTIVE BRIGHTNESS THRESHOLDING Mohammad Rosyidi; Sahid Bismantoko; Tri Widodo
Majalah Ilmiah Pengkajian Industri Vol. 14 No. 1 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v14i1.3973

Abstract

The problem of parking systems on the street is a classic problem that occurs from year to year, manysolutions are offered in solving the parking problem on the street. The problem is not only related to trafficjams due to in and out of vehicles from the parking spaces but also the parking management issues becomepolemic at this time. A prototype of parking management monitoring system tries to provide solution inmanaging parking by using image processing based smart camera. In a prototype the system test performedon day and night conditions, to anticipate the very contrast difference intensity of pixels during the day or night so as to develop vehicle detection program using adaptive brightness thresholding. The results showthat the program has been running quite well to identify vehicles during day and night timeframe
ANALISIS TEKNOEKONOMI PENERAPAN TEKNOLOGI BIOREFINERY PADA PABRIK KELAPA SAWIT Edi Hilmawan; Ati Widiati; Ayu Lidie Febriyani; Ratna Etie Puspita Dewi
Majalah Ilmiah Pengkajian Industri Vol. 14 No. 1 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v14i1.3978

Abstract

Penerapan teknologi biorefinery pada Pabrik Kelapa Sawit (PKS) melalui pemanfaatan kembali dan daur ulang limbah atau produk samping, dapat meningkatkan efisiensi proses serta nilai tambah dari diversifikasi produk. Dalam studi ini dilakukan kajian teknoekonomi peluang penerapan teknologi biorefinery pada PKS dengan kapasitas terpasang 45 ton-TBS per jam, yang berlokasi di Riau. Opsi teknologi biorefinery yang dikaji ada 4 skenario, yaitu: (a) Skenario 1: PLT Biogas + Pabrik Pellet, (b) Skenario 2: PLT Biogas + Pabrik Kompos, (c) Skenario 3: Biogas Cofiring dan (d) Skenario 4: Biogas Cofiring + Activated Carbon. Hasil analisa teknoekonomi menunjukkan bahwa keempat opsi teknologi biorefinery di atas, layak untuk diterapkan di PKS. Instalasi PLTBg dapat menghasilkan listrik yang lebih murah daripada PLN, sehingga teknologi pellet maupun kompos memiliki kelayakan finansial yang cukup menarik. Skenario biogas cofiring sangat tergantung pada harga cangkang yang digantikan sebagai bahan bakar. Proyek secara teknoekonomi menjadi tidak layak, ketika harga cangkang di bawah Rp 500/kg. Untuk PKS yang sudah terpasang sistem PLTBg, direkomendasikan untuk mengaplikasikan pabrik pellet ataupun kompos memanfaatkan listrik dari PLTBg. Sedangkan yang belum terpasang sistem PLTBg, dapat dipertimbangkan untuk memanfaatkan biogas sebagai bahan bakar boiler, sehingga dapat menghemat cangkang yang memiliki nilai jual tinggi di pasar.
STUDY OF SOCIETY BEHAVIOR TO EARLY WARNING IN THE RAILWAY LEVEL CROSSING WITHOUT BARRIER IN GAYUNG KEBONSARI, SURABAYA Adita Utami; Hera Widyastuti
Majalah Ilmiah Pengkajian Industri Vol. 14 No. 1 (2020): Majalah Ilmiah Pengkajian Industri
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v14i1.4040

Abstract

Railway level crossing safety is one of the most critical issues for railways. Collisions between trains and motorized vehicles contribute most to LX accidents. Population growth and the development of economic in Indonesia affect the increase in vehicle volume, especially in the city of Surabaya. Furthermore, the increasing of vehicles volume, causing congestion at some points in Surabaya including Gayung Kebonsari railway level crossing. One of the congestion factors at the railway level crossings is the duration of closing time as the train passes through the crossing. The uncertain duration of gate closing time cause road users to be undisciplined by break through the crossing gates while the train pass through the crossings. Considering of those problems, respondents’ opinion is being evaluated to see the society behavior to early warning on reducing the number of traffic violation. A comprehensive discussion of the existing problems, lessons learned and the possible future implications that can be applied in Indonesia are presented. Key Words: Railway Level Crossing, Accident, Society Behavior, Regression, Binary logit

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