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Oetomo, Dedy Setyo
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Other

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Journal : Journal of Information System, Technology and Engineering

 1 
Dynamic System Modeling Analysis of CPO-FAME-Biodiesel Distribution for B40 Quota Fulfillment in Java Island 2025 Shaleha, Rahma Luthfia; Oetomo, Dedy Setyo; Ramdhani, Rizky Fajar
Journal of Information System, Technology and Engineering Vol. 3 No. 3 (2025): JISTE
Publisher : Yayasan Gema Bina Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61487/jiste.v3i3.172

Abstract

This research aims to analyze the distribution cost structure and transportation requirements for CPO-FAME-Biodiesel to meet B40 quota implementation in Java Island using a dynamic system approach. This study uses dynamic system simulation with Vensim software to model CPO-FAME-Biodiesel distribution from Sumatra and Kalimantan to Java Island, utilizing data from Ministry of Energy and Mineral Resources and GAPKI with 2025 projections. The simulation reveals that meeting the B40 quota in Java Island requires substantial infrastructure investment with total transportation costs exceeding IDR 1.3 trillion, highlighting the massive scale and logistical complexity of national biodiesel implementation. Analysis identifies fleet tariff, shipping frequency, fleet capacity, raw material prices, and conversion ratios as the primary cost drivers affecting distribution efficiency. Cost optimization can be achieved through strategic shipping frequency management, capacity optimization, efficient fleet fuel management, and implementation of centralized production systems with hub-and-spoke distribution networks. This research contributes essential strategic insights for policymakers in developing cost-effective transportation frameworks and infrastructure planning for Indonesia's national biodiesel policy implementation.
Technical Analysis of Erection in Pilot Plant Industries at Industrial Vegetable Oil or Industrial Lauric Oil Oetomo, Dedy Setyo
Journal of Information System, Technology and Engineering Vol. 2 No. 1 (2024): JISTE
Publisher : Yayasan Gema Bina Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61487/jiste.v2i1.62

Abstract

One source for improving the economy of the green fuel industry is to replace the conventional raw material CPO/CPKO (in this case, formerly processed into RBDPO) with the special palm oil IVO/ILO (industrial vegetable oil or lustrial linoleic oil). The technical aspects to be discussed are the selection of technology, production capacity and production plan, mass balance, production process description, technical equipment specifications, and availability of raw materials, including mechanical and electrical analysis. The abbreviation for the results of this study is that the raw material used is CPO/CPKO, and the product produced is IVO/ILO, which will be used as green fuel material. The process selected is the selection of the production process. IVO/ILO refers to the process of production of CPO, and RBDPO refers to the SNI standard or specification 8875:2020. Its production capacity is 10 tph, the TBS raw material requirement is +540–700 tons per day, and the energy requirement for wood work stations such as reception stations, thresher stations, pressing stations, clarification stations, seed processing stations, and earthquake amps stations Boiler Station and Bleaching Station reach 266.6 KW, where electricity and steam energy are obtained from fiber raw materials and palm fruit shells.
Feasibility Analysis Of Construction Of A Wall Factory Precast Concrete In Samarinda, East Kalimantan At PT. RA Beton Oetomo, Dedy Setyo; Ramdhani, Rizky Fajar
Journal of Information System, Technology and Engineering Vol. 2 No. 2 (2024): JISTE
Publisher : Yayasan Gema Bina Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61487/jiste.v2i2.67

Abstract

The main objective of a business feasibility study is to assess opportunities for a business project and whether the project is worth continuing or not. Results of calculation analysis on PT RA Beton Precast Concrete Wall Product Manufacturing Plant Design with an average production capacity of 128,772 pcs/year with two product designs (Type A-A and Type B-B). Based on the cash flow of the development investment plan, the new factory PT. RA Beton requires capital of Rp. 169.866.126.151.The calculations using the four methods, namely payback period (PP), produce results of 2 years and 4 months less than the economic life or maximum payback period, which is 10 years. Next, using the net present value (NPV) method, the results obtained are the NPV1 value > 0 from 75% interest amounting to Rp. 5,111,998,649, and the NPV2 value < 0 from 80% interest amounting to -Rp. 5,826,301,054. In calculating the Internal Rate of Return (IRR), results were obtained with a value of 94% greater than the applicable interest rate, namely 12%. Each method produces a different value; calculating the payback period concludes that the investment proposal can be accepted and declared feasible because it meets the criteria.
Analysis of the Development of Downstream Copper Industry in Indonesia to Obtain Maximum Added Value Using Dynamic Systems Oetomo, Dedy Setyo; Dewi , Eki Kania; Ramdhani, Rizky Fajar
Journal of Information System, Technology and Engineering Vol. 2 No. 3 (2024): JISTE
Publisher : Yayasan Gema Bina Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61487/jiste.v2i3.85

Abstract

This research aims to design a dynamic system model for the downstream copper processing industry. The secondary data obtained is data provided by the BKPM Strategic Investment Downstreaming Expert Team. Vensim software is used to simulate downstream development in the form of CLD and SFD from 2024 to 2045. The results of the value-added simulation resulted in an increase in the added value of copper cathode by 2.15 times, the added value of cathode slab by 1.62 times, the added value of copper billet by 1.65 times, the added value of copper bar &rods by 1.08 times, the added value of copper tube by 1.02 times, the added value of copper strip by 1.39 times, and the added value of copper wire by 1.58 times. After a sensitivity analysis of the selling price at CAGR and an increase in energy costs by 20%, there was a change in the average value-added margin, so that the increase in added value changed which resulted in an added value of copper cathode of 1.9 times, added value of cathode slab of 1.47 times, added value of copper billet of 1.49 times, added value of copper bar &rods of 1.26 times, added value of copper tube of 0.93 times, added value of copper strip of 0.98 times, and added value of copper wire of 1.44 times.
Feasibility Study for Construction of Solar Grade Silicon Wafer Manufacturing Plant with Production Capacity of 2 GWp in Batam Industrial Area, Indonesia Oetomo, Dedy Setyo; Amalia, Akhsani Nur
Journal of Information System, Technology and Engineering Vol. 3 No. 1 (2025): JISTE
Publisher : Yayasan Gema Bina Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61487/jiste.v3i1.129

Abstract

This study evaluates the technical and economic feasibility of establishing a 2 GWp solar-grade silicon wafer manufacturing facility in Batam Industrial Area, Indonesia. The proposed plant utilises Chinese-manufactured equipment for key processes, including 40 CZ Puller units, 20 Multi-Wire Saw units, and 15 CMP systems, with polysilicon as the primary raw material. A comprehensive analysis incorporating technical, financial, operational, and market aspects demonstrates project viability with an IRR of 18-20% and a payback period of 5-6 years. The total investment of USD 250 million encompasses equipment, infrastructure, and working capital. Results indicate favourable technical feasibility with established Chinese equipment manufacturers meeting international quality standards. Financial analysis shows strong potential returns, supported by growing regional solar panel demand and Batam's strategic advantages. Key risks identified include polysilicon price volatility, technological obsolescence, and market competition, with structured mitigation strategies proposed.
Carbon Footprint Optimization in Nickel-Based Industrial Development: A Case Study of IMIP Morowali Through Sustainable Supply Chain Management Approach Oetomo, Dedy Setyo; Hermawan, Asep; Iskandar, Hendi
Journal of Information System, Technology and Engineering Vol. 3 No. 1 (2025): JISTE
Publisher : Yayasan Gema Bina Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61487/jiste.v3i1.131

Abstract

This research investigates carbon footprint optimisation strategies in the nickel-based industrial development at Indonesia Morowali Industrial Park (IMIP), focusing on sustainable supply chain management practices. The study employs a mixed-method approach, combining quantitative analysis of carbon emissions data with qualitative assessment of supply chain processes. Through comprehensive data collection from 2019-2024 and analysis of multiple operational parameters, the research identified key optimisation opportunities across mining operations, processing plants, and transportation networks. Results indicate that implementing targeted optimisation strategies across the supply chain could reduce carbon emissions by 15-20% while maintaining production efficiency. Specific interventions, including waste heat recovery systems, fleet electrification, and smart logistics integration, demonstrated significant impact with potential annual savings of 87,500 tCO2e and $11.2 million in operational costs. The study also revealed that integrating sustainable practices led to an 18% improvement in production efficiency and a 12% enhancement in resource recovery rates. The findings contribute to the growing knowledge of sustainable industrial development in the mining and metallurgical sectors, offering practical insights for similar industrial parks globally. This research provides valuable frameworks for balancing environmental sustainability with industrial growth in emerging economies.
Co-Authors Adwiyah , Rabiatul Afif Fawa Idul Fata Akhsani Nur Amalia Aldo Fauzi Dherryawan Ari Putri Abdi Arijanti, Susi Asep Hermawan ASEP HERMAWAN Asep Hermawan Dendy K. Pramudito Dewi , Eki Kania Dewi Santika Fatah, Abdurrohim Febrian, Angga Arisandi Imas Widowati Iskandar, Hendi Kraugusteeliana Kraugusteeliana Muhammad Danial Muslim, Mentari Nisaaul Nada, Muhammad Bisyri Nuri Aslami Rahmah, Mutiara Julia ramdan, asep Ramdhani, Rizki Fajar Rizky Fajar Ramdhani Rizky Ramdhani, Rizky Shaleha, Rahma Luthfia Siti Zaenab Nur Hasanah Sutartiah, Farliana Wanwan Jamaludin Yanto RUkmana, Arief Yudha , Haris Sandi