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All Journal ASEAN Journal of Systems Engineering Majalah Forum Teknik UGM Traksi : Majalah Ilmiah Teknik Mesin BERKALA SAINSTEK Jurnal Teknologi Journal of Engineering and Technological Sciences JDE (Journal of Developing Economies) Indonesian Journal of Chemistry Paedagoria : Jurnal Kajian, Penelitian dan Pengembangan Kependidikan Angkasa: Jurnal Ilmiah Bidang Teknologi JURNAL PENDIDIKAN TAMBUSAI AL-HAYAT: Journal of Biology and Applied Biology Dharma Bakti Edumaspul: Jurnal Pendidikan Prosiding Seminar Nasional Teknik Mesin Jurnal Inovasi Teknik Kimia Journal of Appropriate Technology for Community Services ASEAN Journal of Chemical Engineering Scientific Journal of Mechanical Engineering Kinematika Jurnal Peduli Masyarakat Airlangga Journal of Innovation Management Community Empowerment Jurnal AbdiMas Nusa Mandiri International Journal of Industrial Engineering and Engineering Management INTERNATIONAL JOURNAL OF EDUCATION, INFORMATION TECHNOLOGY, AND OTHERS Automotive Experiences Journal of Mechanical Design and Testing (JMDT) Abdimas Altruis: Jurnal Pengabdian Kepada Masyarakat Jurnal Kiprah Pendidikan International Journal of Islamic Education, Research and Multiculturalism (IJIERM) Prosiding Seminar Nasional Teknologi Industri Berkelanjutan Jurnal Ilmu Pendidikan Indonesia JOMPA ABDI: Jurnal Pengabdian Masyarakat Techno Jurnal Pengabdian Masyarakat Bhinneka Honai SAINTIFIKA Jurnal Teknik Kimia dan Lingkungan National Multidisciplinary Sciences Journal of Energy, Materials, & Manufacturing Technology Jurnal Pengabdian Masyarakat dan Riset Pendidikan Jurnal Teknologi Jnanadharma JURNAL REKAYASA KIMIA & LINGKUNGAN Journal of Engineering and Technological Sciences Jurnal Bioteknologi & Biosains Indonesia (JBBI) Edubiotik : Jurnal Pendidikan, Biologi dan Terapan
Joko Waluyo
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Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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Journal : ASEAN Journal of Systems Engineering

 1 
APPLICATION OF NEWTON – RAPHSON METHOD TO ANALYZE THERMAL EFFICIENCY OF GAS TURBINE BEFORE AND AFTER ENGINE REPLACEMENT Damianus Mario Ricky Fernando; Joko Waluyo; Nugroho Dewayanto
ASEAN Journal of Systems Engineering Vol 4, No 1 (2020): ASEAN Journal of Systems Engineering
Publisher : Master in Systems Engineering

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Gas turbine performance is one of the main concerns in the operating of industrial plants. Thermal efficiency is vital to analyze the performance of the gas turbine. This research purpose is to analyze the gas turbine's thermal efficiency after performed engine replacement in one of the gas industries in Kutai Kartanegara, East Kalimantan, Indonesia. The data was taken during the period from August 2017 to July 2018, while engine replacement was performed in February 2018.  The data were processed to develop simulation models expressing the characteristics of the equipment. The simulation models were then solved simultaneously using the Newton – Raphson Method.  A beneficial advantage of Newton Raphson is that it enables to handle a massive number of data and provides faster iteration compare to other methods.  Based on the simulation results, the thermal efficiency before performed engine replacement was 23.43% with a net power of 18.109 MW and fuel consumption of 1.640 Kg/s. Meanwhile, the development of thermal efficiency after performed engine replacement was 28.24% with a net power of 18.597 MW and fuel consumption of 1.397 Kg/s. This indicates that after performing engine replacement, the thermal efficiency increased by 4.81% and saved fuel by 0.243 Kg/s.
SIMULATION MODEL DEVELOPMENT FOR FIRE WATER PIPING NETWORK WITH NEWTON-RAPHSON ITERATION Ari Ariangga Orranius Putra Patarru; Joko Waluyo; Nur Aini Masruroh
ASEAN Journal of Systems Engineering Vol 5, No 1 (2021): ASEAN Journal of Systems Engineering
Publisher : Master in Systems Engineering

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The oil and gas industry is an industry that possesses various risks. The most significant risk in this sector is fire. To support the oil and gas production activities, it is necessary to install permanent and non-permanent fire extinguishers to prevent and deal with fire accidents. The firewater network system has a role in supplying flow rates with a certain pressure to protect the production process in a fire. The flow rate and pressure must be able to preserve the process area. Therefore the performance of firewater network system must be monitored. Over time, the performance degradation of the firewater network system is unavoidable.  This decrease is due to scaling or leak minor at pipe and the decreasing performance of the diesel fire pump.This research aims to create a model of simulation fire water network system using newton-raphson iteration. The simulation model that is formed will be used to vary the flow rate against pressure. Based on iteration show the flow rate at platform 4 is 198.9 m3/h. The discharge variation is carried out to see the pressure on platform 4, the variation of the discharge of 2,000 m3/h gives a pressure of 150.45 psig, the variation of the discharge of 1,500 m3/h gives a pressure of 130.85 psig, and the variation of the discharge of 500 m3/h gives a pressure of 24.26 psig. The results of the discharge variation are used to see the performance of the fire water network system. Performance with a discharge of 2,000 m3/h decreased by 9.74%, and performance with a discharge of 1,000 m3/h decreased by 8.81%.
MODEL OF VEHICLE ROUTING PROBLEM WITH SPLIT DELIVERY, MULTI TRIPS, MULTI PRODUCTS AND COMPARTMENTS FOR DETERMINING FUEL DISTRIBUTION ROUTES Dinda Safitri Ramadhani; Nur Aini Masruroh; Joko Waluyo
ASEAN Journal of Systems Engineering Vol 5, No 2 (2021): ASEAN Journal of Systems Engineering
Publisher : Master in Systems Engineering

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Abstract

The industrial development in Indonesia encourages companies to have high sensitivity in competing to meet consumer demands promptly by considering minimum distribution costs. One of the factors that can affect distribution costs is route determination. Determining the distribution route is the Vehicle Routing Problem (VRP). The purpose of VRP is to arrange the order of distribution routes to produce a minimum total distance. This study aims to determine the fuel distribution route at TBBM Rewulu in one delivery period to obtain the optimal distribution route and minimize the vehicle mileage. Delivery is carried out using three types of tanker trucks with heterogeneous capacities. This study uses a mathematical model of Mixed Integer Linear Programming (MILP) by considering split delivery, multi trips, multi-products, and compartments.The branch and bound method in the LINGO solver has been used to solve this problem. This model was tested on a simple case using data of 8 customers with different distances and demand shipped by truck. The results obtained indicate that no boundaries are violated, and all consumers are served. The mathematical model built is still general, so it can solve similar cases. A model can be developed for further research by adding VRP variants such as time windows and adding the product types to represent the entire existing system.
POTENTIAL STUDY OF PHOTOVOLTAIC POWER STATIONS TO MEET ENERGY NEEDS OF FUEL CELL UNITS IN BARU PANDANSIMO BARU BEACH OF BANTUL, YOGYAKARTA Ely Afridiana Kuncoro; Arief Budiman; Joko Waluyo
ASEAN Journal of Systems Engineering Vol 5, No 2 (2021): ASEAN Journal of Systems Engineering
Publisher : Master in Systems Engineering

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Abstract

Energy needs are increasing rapidly along with population growth, increasing population activity, and massive development in technology. However, a current energy source is mainly from fossil energy. This condition is inversely proportional to fossil energy stock, decreasing year by year as a natural condition of non-renewable energy. On the other hand, fossil energy damages the environment by its pollution, such as deforestation and air and atmospheric pollution in the form of greenhouse gas emissions. For this reason, the world needs another source of energy that could replace fossil energy as a source and is also environmentally friendly. New and renewable energy could be the solution.Indonesia has plenty amount of new and renewable energy potential. However, renewable energy is weather-dependent, thus requiring storage technology to store the energy. The current common storage technology is battery technology. This technology has some weaknesses: limited capacity, high cost, less flexibility, expensive, and short lifetime. Another storage technology with high flexibility, easy transport, high amount capacity, long lifetime, and wide usage is needed. Hydrogen storage appears to meet all these requirements.This study aimed to calculate the optimum potential of photovoltaic power stations at Baru Pandansimo Beach of Bantul, Yogyakarta, as an energy source to produce hydrogen as a storage energy system. The simulations are done using HOMER software were carried out in three photovoltaic power station scenarios: fixed-tilt, single-axis tracker, and dual-axis tracker, and showed that the fixed-tilt photovoltaic power station scenario is the most optimal design and architecture. With total capacity reaching 7.8 MWp potential to be built at Baru Pandansimo, it could generate 11,657,704 KWh/year electrical energy with an NPC value of USD 8.29 M, and a COE of 0.0420 USD/KWh. This electrical energy could produce 213,288.06 kilograms of H2 at a 2.3 USD/kg production cost. 
Co-Authors Abdul Karim Zulkarnain Abdul Wahid Abil Fida Siskayanti Agus Imam Sonhaji Agustinus Winarno Akhmad F. Alhikami Akif Mahrus Ali Allam K, Muhammad Amalia Febryane Adhani Mazaya Anifah, Eka Masrifatus Anis Kristiani, Anis Ari Ariangga Orranius Putra Patarru Ari Diana Susanti, Ari Diana Arief Budiman Ariyadi, Hifni Mukhtar Bakar, Syafriyudin Abu Bambang Eko Afiatno Bambang Purwono Basuki, Rio Basworo, Agung Tri Bikorin Bikorin Dahlan, Irvan Damayanthy, Ramanda Ayu Damianus Mario Ricky Fernando Damianus Mario Ricky Fernando Daroini, Moch. Fauzun Deny Ratna Yuniartha Dinda Safitri Ramadhani Dodik Prakoso Eko Hery Suwandojo Dodik Prakoso Eko Hery Suwandojo Dwi Siswanta Edi Iskandar, Edi Edy Prayitno Eko Haryanto Eko Haryanto Ely Afridiana Kuncoro Ernawati, Kadek Lusi Fajar Y. Prabowo Ferhadius Endi Ferriawan Yudhanto Ganjar Andaka Gunawan Nugroho Hadi Saputra Hana Himatul ‘Aliyah Haris Puspito Buwono Hartono, Moh Hasan Albana Rhomadhon Hasanah, Rafiatul Hayatullah, Wahyu Herry Purwanti, Noordiana Herry, Noordiana Heru S. B. Rochardjo Hotlan Samosir Hudiyo Firmanto, Hudiyo I Ketut Mahardika Ibnu Singgih Pranoto Ikbar, Royhan Indah Retuwati Ramadhana Izzulhaq, Muhammad Ghozy Jenni Prasetiyo Johan Syafri Mahathir Ahmad Jumina Jumina Jussac Maulana Masjhoer Kamalia Fikri Kamalia Fikri Ketut Mahardika Kholiq Fadillah Amriansyah Kosmar Marojahan Damanik Kurnia, Irwan Kuswati Kuswati Lestari, Nidi Lestary, Septy Luthfiana Nurul Hidayati, Luthfiana Nurul Machida, Masato Mahda Mega Andyka Hieguyta Marausna, Gaguk Mardiana, Alif Margono Margono Mastini Michael Seen Mochammad Iqbal Mohammad Imam Farisi Mohammad Wildan Habibi, Mohammad Wildan Muhammad Farhan Abrar Muhammad Ibrahim Hanif Muhammad Kusumawan Herliansyah Muhammad Sholeh MUHAMMAD SHOLEH Muhammad Yusuf Muslim, Ilham Taufik Musyarofah Musyarofah, Musyarofah Nabila, Zahrani Putri Ndaru Pratama, Nico Nidia Lestari Noordiana Herry Purwanti Norman, Hafiz Nugroho Dewayanto Nur Aini Masruroh Nur Mayke Eka Normasari Nur Wahyudi Paryanto Paryanto Pazli, Pazli Prabang Setyono Pramudya Dwi Aristya Putra Pranolo, Sunu Herwi Purba, Ibnu Tryansar Purmanna, Astrino Putra, Ariadi Indra Putri, Rizqi Wulandari Putro, Firman Asto Qadarusman, Muhammad Luqman Rachmawati, Rr Yuliana Rahmat Bayu Raziq, Abdur Reza, Mutia Ridho Bayuaji Ridho Hantoro Rofika Rofika, Rofika Rony Arjuna Rosalinda, Julitha D Rosalinda, Julitha Dwi Saiful Huda Samuel Kristiyana Sapawe, Norzahir Sembodo, Bregas Siswahjono Tatag Septian, Ardie Setyowati Rahayu, Suparni Sidiq, Muhammad Fadel Simarmata, Henni Mariani Slamet Hariyadi Soepomo, Bambang Su Dar mono Subchan, Wahju Sudarmono Sudarmono Sugiyanto - Sugiyanto Sugiyanto Sunu Herwi Pranolo Suparni Setyowati Rahayu Sutrisno S Suwanto Raharjo Syafriyudin Syafryudin Tiurlina Siregar Totok R. Biyanto TRI ACHMADI Tri Haryanto Triyanto, Heru Agus Umi Fadilah, Umi Wahyu Wilopo Wahyu Wilopo Wicaksana, Hangga Yayuk Fatmawati, Yayuk Yehezkiel Steven Kurniawan Yonathan Ito Yudha, Venditias Yuli Pratiwi Yuli Pratiwi Yulinar Pramesti Cahyani Zaid Haidar Khairy Zainal Abdi