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All Journal Jurnal Teknoin IPTEK Journal of Proceedings Series Jurnal Filsafat Proceeding International Conference on Information Technology and Business Neo-Bis Jurnal Teknobisnis International conference on Information Technology and Business (ICITB) Journal of Information Systems Engineering and Business Intelligence Religi: Jurnal Studi Agama-agama Panggung Jurnal Sistem dan Manajemen Industri Jurnal Studi Manajemen dan Bisnis Syntax Literate: Jurnal Ilmiah Indonesia Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Matrik : Jurnal Manajemen dan Teknik Industri Produksi International Journal of Marine Engineering Innovation and Research JISO : Journal of Industrial and Systems Optimization Journal of Social Research COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat Journal Research of Social Science, Economics, and Management Eduvest - Journal of Universal Studies Sewagati

Nurhadi Siswanto

2Department Of Industrial And Systems Engineering Institut Teknologi Sepuluh Nopember, Surabaya

Author-ID : 382290

Religion Aerospace Engineering Arts Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Neuroscience Physics Public Health Social Sciences Transportation Other

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Reviewing the RCM on Cooling Water Pump of LNG Production Company Shaneza Fatma Rahmadhanty; Trika Pitana; Nurhadi Siswantoro
International Journal of Marine Engineering Innovation and Research Vol 3, No 3 (2019)
Publisher : Institut Teknologi Sepuluh Nopember

Maintenance is one of the important things to maintain a company in the industry. A company, such as LNG production company, must be able to produce and meet energy needs independently to support all operations, such as cooling water system that functions to control the temperature and pressure so that the production process runs optimally. If this system is disrupted, there will be excess use of water, waste water, and energy costs needed which result in higher total operational costs. With good and right care, it can reduce all risks posed. One component that plays a role in the cooling water system is a pump. This pump serves to flow the cooling water which is seawater to the LNG industry plant. At present, the amount of Work Order data recorded from the problems obtained from the pump requires maintenance updates. In this study, the method in the maintenance programs are used based on the Reliability-Centered Maintenance (RCM) implementation. RCM will increase cost efficiency, reliability, pump uptime, and propose maintenance tasks. Beside pump, the reviewing also involve supports components that affect pump optimization. In this paper, the functions, causes, and effects are identified and the new scheduled maintenance tasks are shown

Risk Based Inspection of Gas-Cooling Heat Exchanger Dwi Priyanta; Nurhadi Siswantoro; Alfa Muhammad Megawan
International Journal of Marine Engineering Innovation and Research Vol 1, No 4 (2017)
Publisher : Institut Teknologi Sepuluh Nopember

On October 2013, Pertamina Hulu Energi Offshore North West Java (PHE – ONWJ) platform personnel found 93 leaking tubes locations in the finfan coolers/ gas-cooling heat exchanger. After analysis had been performed, the crack in the tube strongly indicate that stress corrosion cracking was occurred by chloride. Chloride stress corrosion cracking (CLSCC) is the cracking occurred by the combined influence of tensile stress and a corrosive environment. CLSCC is the one of the most common reasons why austenitic stainless steel pipework or tube and vessels deteriorate in the chemical processing, petrochemical industries and maritime industries. In this thesis purpose to determine the appropriate inspection planning for two main items (tubes and header box) in the gas-cooling heat exchanger using risk based inspection (RBI) method. The result, inspection of the tubes must be performed on July 6, 2024 and for the header box inspection must be performed on July 6, 2025. In the end, RBI method can be applicated to gas-cooling heat exchanger. Because, risk on the tubes can be reduced from 4.537 m2/year to 0.453 m2/year. And inspection planning for header box can be reduced from 4.528 m2/year to 0.563 m2/year.

Implementation of Risk-Based Inspection (RBI) in Condensate Separator and Storage Vessel: A Case Study Nurhadi Siswantoro; Dwi Priyanta; Jamal Ramadhan
International Journal of Marine Engineering Innovation and Research Vol 6, No 1 (2021)
Publisher : Institut Teknologi Sepuluh Nopember

In the processing of oil and gas, a pressure vessel is an important piece of equipment. It needs a method to prevent the failure of the pressure vessel. The Risk-Based Inspection (RBI) is a systematic approach to the inspection management method for equipment based on the level of risk. RBI is expected to provide sufficiently accurate recommendations to prevent equipment failures. In this research, the objects to be carried out are the 10V2102 condensate separator and the 10V2103 condensate storage vessel. According to RBI analysis, the risk category of the current RBI date is low risk for the condensate separator 10V2102 and condensate storage vessel 10V2103. Meanwhile, the inspection date of Condensate Separator 10V2102 is 2 April 2026 and 11 February 2027 for Condensate Storage Vessel 10V2103 and selected inspection methods are Visual Testing, Ultrasonic Testing (UT), Radiography Test (RT), Eddy Current Test, and Magnetic Particle Inspection.

Possibility of Piezoelectric Sensor to Monitor Onshore Pipeline in Real Time Monitoring Nurhadi Siswantoro; Aydin Doğan; Dwi Priyanta; Muhammad Badrus Zaman; Semin Semin
International Journal of Marine Engineering Innovation and Research Vol 3, No 4 (2019)
Publisher : Institut Teknologi Sepuluh Nopember

Transportation oil and gas mostly used pipelines transportation. The condition of a pipeline must be continually monitored to ensure that defects do not cause it to fail and operate optimally. Pipeline has the possibility to experience defects during operations such as general corrosion, fatigue, crack, and others. Defects that occur in the pipeline during operation have serious consequences including loss of property, personal injury, or even loss of lives and serious ecological pollution. Awareness of the importance of conducting pipeline monitoring and safety issues for workers and residents around the pipeline site, emphasizes the importance of developing a technology for conducting pipeline monitoring activities in real time. The new technology for detecting metal defects is by using piezoelectric material. Based on laboratory scale, piezoelectric sensor can be applied to monitor pipeline defect. However, it is necessary challenges to scaling up in real application are following: (1) financial investment, (2) human behavior surrounding pipeline area, (3) receiving signal in long distance, (4) protection of piezoelectric sensor, (5) combination survey for future development.

Modification of Sea Water Scrubber System into Fresh Water of Inert Gas System on the Crude Oil Tanker 85,000 DWT Nurhadi Siswantoro; Hari Prastowo; Faris Zulfar Rosyadi
International Journal of Marine Engineering Innovation and Research Vol 5, No 2 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Each ship carrying a hydrocarbon must be equipped with an inert gas system. On tankers, the function of inert gas is to prevent fires or explosions caused by oxygen levels contained in cargo tanks. Inert gas is produced by cleaning the exhaust gas boiler using a sea water scrubber system. However, seawater has corrosive properties that cause the use of material in scrubber system components to be resistant to corrosion. Therefore, through this research a modification of the sea water scrubber system was made into a freshwater scrubber system. The advantages of a freshwater scrubber system include a low corrosive level that causes the use of inexpensive materials. Modification of seawater scrubber systems into fresh water causes additional components to be made, including adding NaOH tank, expansion tank of freshwater, seawater pumps, freshwater pumps, NaOH pumps, heat exchanger, and wash water treatment unit. Economic calculations are carried out to determine the installation costs and operational costs needed from this modification. Based on the technical and economical analysis, modification of the sea water scrubber system into fresh water inert gas system of Crude Oil Tanker 85,000 DWT can be done with an estimated installation cost of 1.5 Bill. Rupiahs.

Analisis dan Optimasi Pada Jaringan Kabel Fiber Optik ke Rumah (Fiber to The Home) di Surabaya Timur Menggunakan Metode Integer Linier Programming Reza Tianto; Nurhadi Siswanto
Jurnal Studi Manajemen dan Bisnis Vol 4, No 1 (2017): Juni
Publisher : Trunojoyo University of Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jsmb.v4i1.3215

Fungsi jaringan Internet saat ini sangat besar dan mendukung perkembangan teknologi informasi yang semakin berkembang. Pada penelitian ini bertujuan untuk membantu perusahaan provider internet untuk mendesain jaringan FTTH di Kec. Panjang Jiwo. Permasalahan pada Jaringan FTTH di Panjang Jiwo adalah bagaimana membuat desain jaringan FTTH yang baik dan biaya minimum sehingga mengurangi gangguan jaringan dan biaya pemeliharaan. Berdasarkan permasalah itu diperlukan optimasisasi dengan metode Integer Linier Programming–Hub to spoke. Dengan memperhatikan biaya pekerja, biaya bahan, nilai redaman pada rambatan kabel dan insertion loss. Hub to Spoke. Dengan metode Hub to Spoke menghasilkan nilai proyek lebih rendah 13,01% atau Rp 5.739.780 lebih murah daripada nilai existing. Penggunan ODP yang disesuaikan dengan demand berdasakan perhitungan dengan metode Hub to Spoke sangat mengurangi biaya proyek sehingga lebih efisien. Disarankan kepada pihak manajemen perusahaan tetap menggunakan ODP 1:8 karena akan lebih murah dan ringkas dalam pelaksanaan proyek Jaringan FTTH Panjang Jiwo Tahap I.

PERANCANGAN PENILAIAN KINERJA KARYAWAN BERDASARKAN KOMPETENSI SPENCER DENGAN METODE ANALYTICAL HIERARCHY PROCESS(Studi Kasus di Sub Dinas Pengairan Dinas Pekerjaan Umum Kota Probolinggo) Eko Nurmianto; Nurhadi Siswanto
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 8 No. 1 (2006): JUNE 2006
Publisher : Institute of Research and Community Outreach - Petra Christian University

In this research, Worker Performance Appraisal System has been conducted in the Public Worker Council Probolinggo. This research especially conducted in the Sub Public Worker for Low Level Workers, i.e. Contract Workers. So far incentive in this institution was not given based on their performance, but based on the community agreement. Therefore, the worker performance appraisal system was designed based on the competency, namely the Spencer competency. For that purpose the Spencer appraisal Dimension has been integrated to DP3 (Daftar Penilaian Pelaksanaan Pekerjaan) and to the Competencies for the Executive Leadership Development. The results on those criterias were processed using the Expert Choice Software. The weight for the managerial skill is 0.200 and for the technical one is 0.800. Type of managerial skill is indicated by the competency criteria, i.e, discipline, serving, achievement, proactive and commitment to organization. The weights of each criterion are 0.318, 0.289, 0.151, 0.140, 0.102, respectively. On the other hand, Technical skills indicated by competency criteria are leadership and cooperation. Their weights are 0.500, 0.500, respectively. It can be concluded that, the accurate incentive system is an insentive system, based on profit share. This share is given according to the performance appraisal of each worker. Abstract in Bahasa Indonesia : Penelitian ini membahas tentang sistem penilaian kinerja karyawan yang dilakukan di Dinas Pekerjaan Umum Kota Probolinggo, khususnya Sub Dinas Pengairan untuk karyawan level bawah (karyawan kontrak). Selama ini pemberian insentif di Sub Dinas tersebut tidak didasarkan atas kinerja karyawan tetapi atas dasar kebersamaan/ gotong royong. Untuk meningkatkannya dirancang sistem penilaian kinerja karyawan berbasis kompetensi, khususnya kompetensi Spencer. Dimensi penilaian Spencer diintegrasikan dengan DP3 dan Competencies for Executive Leadership Development. Kriteria diolah dengan Software Expert Choice. Hasilnya bobot kemampuan karyawan kontrak terbagi atas: kemampuan manajerial (0.200) dan kemampuan teknik (0.800). Kemampuan manajerial terdiri dari: disiplin (0.318), melayani (0.289), berprestasi (0.151), proaktif (0.140), dan komitmen pada organisasi (0.102). Sedangkan kemampuan teknis terdiri dari: memimpin (0.500) dan kerjasama (0.500). Dari penelitian tersebut sistem insentif yang tepat adalah sistem insentif pembagian laba, dimana insentif yang diterima berdasarkan pada peningkatan kinerja karyawan. Kata kunci: penilaian kinerja karyawan, kompetensi, insentif, analytical hierarchy process.

PEMODELAN DAN PENYELESAIAN PERMASALAHAN PENJADWALAN PILOT DENGAN METODE EKSAK DEKOMPOSISI Ahmad Rusdiansyah; Yani Dhina Mirenani; Zya Labiba; Nurhadi Siswanto
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 9 No. 2 (2007): DECEMBER 2007
Publisher : Institute of Research and Community Outreach - Petra Christian University

Crew scheduling is one of most important operational problems in airline industries. Crew scheduling Problem consists of two steps that is "Crew Pairing" and "Crew Rostering". The research focusses on building Boeing 737-200's monthly pilot rostering of PT. X Airlines based on given pilot pairings. There are some vertical and horizontal regulations must be fulfilled in so that the problem becomes very complex and cannot be solved using a pure exact method in reasonable computational time. Accordingly, we propose a decomposition exact method to solve the problem. Our model was run using LINGO Optimization software. Experiment results showed that our schedules are outperform than the existing schedules of the airline for the case of May 2006. Abstract in Bahasa Indonesia : Penjadwalan kru pada suatu maskapai penerbangan merupakan salah satu permasalahan operasional yang terpenting. Penjadwalan kru terdiri dari dua tahapan yaitu tahap pengelompokkan kru dan penugasan kru. Penelitian ini memfokuskan pada pembuatan jadwal penugasan pilot pesawat Boeing 737-200 pada maskapai penerbangan PT. X Airlines yang ber-home base di Surabaya selama satu bulan, berdasar pada hasil pengelompokkan pilot yang telah ditentukan sebelumnya. Terdapat sejumlah peraturan horizontal dan vertikal yang harus dipenuhi membuatnya menjadi permasalahan kombinatorial yang sangat kompleks, sehingga tidak dapat diselesaikan dengan menggunakan metode eksak murni dalam waktu yang wajar. Untuk itu digunakan metode eksak dekomposisi. Model tersebut diterjemahkan menggunakan perangkat lunak optimisasi LINGO. Hasil eksperimen menunjukkan bahwa jadwal penugasan pilot yang dibuat dengan metode ini lebih baik daripada jadwal milik perusahaan untuk kasus pada bulan Mei 2006. Kata kunci: penjadwalan pilot, pengelompokkan pilot, aturan horizontal dan vertikal, metode eksak dekomposisi

A Hybrid Scatter Search Heuristic Algorithm for Solving Cockpit Crew Rostering Ahmad Rusdiansyah; Danim Musthofa; Nurhadi Siswanto; Maulin Masyito Putri
Jurnal Teknik Industri Vol. 20 No. 2 (2018): December 2018
Publisher : Institute of Research and Community Outreach - Petra Christian University

This research introduces the development of Hybrid Scatter Search Heuristic for solving cockpit crew (pilot and co-pilot) rostering problem. This research aims to minimize the deviation of flight hours among the cockpit crew of an airline, Garuda Indonesia Airline, during the one-month planning horizon. The weakness of the existing algorithm used in the airline, which is a trial-and-error algorithm, is that the variation among crew flight times for one month is too significant and the scheduling process takes a quite long time. We tested the performance of our proposed algorithm to that of the existing algorithm. The numerical experiments showed that the proposed algorithm had outperformed the existing algorithm. More specifically, we found some in sensitivity analysis experiments. Our experiment results showed that that the higher the flight time target, the higher the total deviation of flight time. We also conducted several experiments to show the robustness of our proposed algorithm. First, we tested the relationship between the number of pilots who can use their preferences and the total deviation of flight time. We conducted experiments by giving the cockpit crew the opportunity to choose a day off. Finally, we analyzed the results by changing the number of cockpit crew.

Throughput Analysis on a Multi-state Manufacturing System by Considering Availability Nabila Yuraisyah Salsabila; Nurhadi Siswanto; Erwin Widodo; Oryza Akbar Rochmadhan
Jurnal Teknik Industri Vol. 21 No. 2 (2019): December 2019
Publisher : Institute of Research and Community Outreach - Petra Christian University

Manufacturing technology becomes more complex as customer demand increases. Most manufacturing companies consist of multi-state manufacturing networks. Therefore, the reliability and availability parameters become an important issue to satisfy customer demand. Unavailability can result in reducing throughput because of decreasing operational production time. To resolve this problem, the buffer inventory can minimize the occurrence of material starving and production blocking during the equipment downtime. This paper will focus on experimenting with buffer inventory levels and the capacity of a multi-state manufacturing network to increase the production throughput on a company that has 70,000 tons per year of capacity. However, due to the unavailability problem, the existing system capacity decreases to 62,175 tons per year. The simulation model is used to improve throughput by modeling the failure interruption and the buffer inventory logics during the production process.

Co-Authors -, Elisabeth Adhi Iswantoro Adianto, Asyraf Nur Agoes Santoso Aguk Zuhdi Muchamad Fathallah Ahmad Rusdiansyah Alfa Muhammad Megawan Ali Reza, Muhammad Andi Irma Arianty Aris Setya Yuwana Asyraf Nur Adianto Asyraf Nur Adianto Atikah Aghdhi Pratiwi Aydin Doğan Bachtiar Rosihan Aghda Baihaqy, Ahmed Raecky Cahyono, Beny Danim Musthofa Defriko Christian Dewandhika Dewi Sartika Dimas Fajar Prasetyo Effi Latiffianti Eko Nurmianto Elisabeth - Erwin Widodo Erwin Widodo Fakher Shwan Rafeek Faris Zulfar Rosyadi Fathallah, Aguk Zuhdi Muhammad Hafidz Ridho Hari Prastowo Hasan Aji Prawira Hasan Aji Prawira Herawatie, Dyah Imam Trio Utama Iwan Febrianto Jamal Ramadhan Khoirunnisa Mahdiyah Syawalina Madina Nur Pratiwi Mar'atus Sholihah Maulin Masyito Putri Muhammad Badrus Zaman Muhammad Naufal Bintang Muhammad Saifulloh Muhammadi, Hamdan Musthofa, Danim Nabila Yuraisyah Salsabila Nabila Yuraisyah Salsabila Nugroho, Dwi Oktavianto Wahyu Oryza Akbar Rochmadhan Oryza Akbar Rochmadhan Prasetyo, Dimas Fajar Prawira, Hasan Aji Prayoga, Dharma Gita Surya Priambodo, Bangkit Nadyo Priyanta, Dwi Priyanta, Dwi Retno Widyaningrum Reza Tianto Ridho, Alvin Ichwannur Rochmadhan, Oryza Akbar Salsabila, Nabila Yuraisyah Semin Semin Semin Semin Semin Semin Semin Septian Cahya Shaneza Fatma Rahmadhanty Stefanus Eko Wiratno Sukriyah Kustanti Moerad Sukriyah Kustanti Moerad Syaputra, Oktavian Trika Pitana Widodo , Erwin Wolfgang Busse Yani Dhina Mirenani Yani Dhina Mirenani Zaman, Muhammad Badrus Zulaihan, Ahmad Zya Labiba Zya Labiba

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