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Abstrak :
This book presents results relevant in the manufacturing research field, that are mainly aimed at closing the gap between the academic investigation and the industrial application, in collaboration with manufacturing companies. Several hardware and software prototypes represent the key outcome of the scientific contributions that can be grouped into five main areas, representing different perspectives of the factory domain: 1) Evolutionary and reconfigurable factories to cope with dynamic production contexts characterized by evolving demand and technologies, products and processes. 2) Factories for sustainable production, asking for energy efficiency, low environmental impact products and processes, new deproduction logics, sustainable logistics. 3) Factories for the People who need new kinds of interactions between production processes, machines, and human beings to offer a more comfortable and stimulating working environment. 4) Factories for customized products that will be more and more tailored to the final users needs and sold at cost-effective prices. 5) High performance factories to yield the due production while minimizing the inefficiencies caused by failures, management problems, maintenance. This books is primarily targeted to academic researchers and industrial practitioners in the manufacturing domain.

Abstrak :
Finding the novelty in and developing new science and engineering applications in the world is very important and interesting. Overall, process and product engineering aims to improve and increase the effectiveness of the engineering process in order to achieve the optimum conditions. However, engineering and environmental applications still contain various limitations such as high energy demand, catalyst costs, and less reuse or regeneration of adsorbents and catalysts. These challenges have led to the exploration of cheaper precursors, the regeneration of adsorbents or catalysts, mechanisms reactions, and overall optimization of the engineering process. Moreover, multifunctional and advanced materials could be promising as materials for further applications. To the best of our knowledge, investigation and exploration of the precursors, methods, design, instruments, product, and/or manufacturing is required for the future as they facilitate and integrate with each other. The adsorption process is a simple and important method for many applications within the environment and industries to deal with the removal of heavy metals, pollutants, and odor from wastewater, and to tackle polluted air. Clean energy sources and global warming have been major issues and challenges for many years, including a reduction of co2. Much attention has been paid to the key issue of developing alternative uses for by-products (waste) in addressing the sustainability of this resource. In particular, the utilization of any by-product (waste) as a useful product should be considered as a source of economic, eco-friendly, high-efficiency, and renewable materials, and should follow at least one rule, such as the “polluter pays” principle. This is expected to pave the way for the attainment of advanced applications. All of the findings of this research are effective and may be used to enable the further development of environmental applications for the removal of a diverse range of pollutants, diminish hazardous pollutants, and facilitate the minimization method for the management of waste. On the other hand, to improve the production of renewable energy and further applications, the overall process also needs to be considered, including the temperature, time, feedstock composition, catalyst, and arrangement of the design.to address the above problems, the 2nd international tropical renewable energy conference (i-trec) 2017 was held on october 3–4, 2017 at the courtyard by marriott bali nusa dua resort, bali, indonesia. The 2nd i-trec 2017 was proudly organized by the tropical renewable energy center, faculty of engineering, universitas indonesia. The main theme of the 2nd i-trec 2017 was “towards tropical renewable energy innovation and technology integration.” The 168 presented papers came from various countries, such as australia, brunei darussalam, brazil, france, indonesia, japan, and malaysia. The 2nd i-trec 2017 covered three symposia, namely renewable energy system and regulation, biomass and biotechnology, and multifunctional and advanced materials for renewable energy applications. From a total of 168 papers from the three symposia, we selected 22 for publication in ijtech. The papers are from a range of fields, as follows: architecture (1), chemical engineering (9), civil engineering (1), electrical engineering (1), mechanical engineering (7), and metallurgical and materials engineering (3). All of the 22 selected papers from the three symposia are summarized below.

Abstrak :
Systematic consideration of environmental aspects within the early stages of product development (PD) can be considered highly significant in order for the overall environmental performance of the product to be improved. Many methods and tools have been developed aiming to enable this consideration and provide the properties that need to be considered and improved. This article provides an overview of some well-known and more applicable tools and methods that have been developed and are available today. The identified tools are generally classified in two groups: Guidelines and Analytical tools. The limitations and barriers of current tools are assessed and categorized and two areas for work are proposed in order to address current limitations in the existing literature. One of the areas is followed and a scoring model is proposed as a new tool for sustainable PD.

Abstrak :
The transition within business from a linear to a circular economy brings with it a range of practical challenges for companies. The following question is addressed: What are the product design and business model strategies for companies that want to move to a circular economy model? This paper develops a framework of strategies to guide designers and business strategists in the move from a linear to a circular economy. Building on Stahel, the terminology of slowing, closing, and narrowing resource loops is introduced. A list of product design strategies, business model strategies, and examples for key decision-makers in businesses is introduced, to facilitate the move to a circular economy. This framework also opens up a future research agenda for the circular economy.

Abstrak :
Recent literature in automotive research indicates that studies of the environmental impact mostly concern metal-based components. Environmental effects are mainly analyzed using “environmental performance indicators” and “life cycle assessment” techniques. Therefore, a knowledge gap in the field of studying automotive plastic components should be conducted based on analyzing material and manufacturing processes selection at the design stage. The research is focused on a plastic component previously unexplored and analyzed using tools that have not been employed for this application. A computer-aided tool was used to model the part and its associated sustainability function was used to analyze its environmental impact. The component was analyzed using different materials and manufacturing processes, then redesigned to be more ergonomic. The improved component design was manufactured using rapid prototyping and a consumer preference survey was conducted to determine which component was preferred. The research found that by changing the material to high-density polyethylene there would be approximately a 30% reduction in carbon footprint, 24% reduction in air acidification, 26% reduction in water eutrophication and 15% reduction in total energy consumption. Injection molding is found to be the most sustainable manufacturing process.

Abstrak :
The precision of the 3-D model and the mesh quality of the remanufactured impeller are directly related to the accuracy of the results of numerical simulation analysis. In order to acquire high accuracy results, 3-D Modeling/hexahedral mesh technologies for remanufactured centrifugal compressor impellers are investigated. A method to reconstruct the structural characteristics of the remanufactured centrifugal compressor impellers, which was based on the measurement points of the structural characteristics and NURBS curve and surface theory, was proposed on the basis of the failure characteristics. Besides, the 3-D model construction process of the remanufactured centrifugal compressor impeller was introduced in detail. Furthermore, based on the 3-D model, a hexahedral meshing method was proposed. The quality of the remanufactured impeller mesh was analyzed with Jacobian matrix. The results showed that the 3-D model and the hexahedral mesh in this study met the accuracy requirement of the FEM analysis.

Abstrak :
The universal market adoption of electric vehicles (EVs) is still impeded by the high cost of batteries. Repurposing EV batteries in secondary applications could recoup a portion of that initial cost and reduce upfront EV costs. Further, when integrated in energy storage systems for renewables, second-life batteries could clean the electricity mix for EV charging and alleviate environmental concerns over battery disposal. This paper presents business models of different EV stakeholders that facilitate battery reuse. Based on interviews with various stakeholders, as well as industry reports and academic literature, we analyze the deciding factors for battery “post-vehicle” applications and their potential impacts on EV business models. The findings emphasize the importance of battery ownership, inter-industry partnerships, and policy support. In this early stage, government support constitutes the most important trigger for battery reuse. The results also suggest the potential of battery reuse as a catalyst for EV business model reconfiguration.

Abstrak :
Central gathering station 10 (CGS-10) menampung seluruh fluida dari beberapa sumur minyak. Incoming fluida di area CGS-10 saat ini sebesar 212.000 BOPD. Pada tahun 2030 akan dilakukan peningkatan produksi sebesar 312.000 BOPD. Beberapa skenario yang dilakukan menghasilkan kesimpulan performa heat exchanger sudah tidak normal karena temperature outlet maksimum fluida pada berbagai kondisi tidak mencapai 175°F. Setelah dilakukan penilaian kecukupan kapasitas pada fasilitas yang ada, perlu adanya penambahan heat exchanger. Pada praktik keinsinyuran ini, analisis mechanical design dilakukan berdasarkan datasheet proces dan penjadwalan proyek berdasarkan analisis material take off (MTO) pada pekerjaan konstruksi civil & piping, dibantu dengan software Microsoft Project yang mempermudah dalam pembuatan engineering, procurement & construction (EPC Schedule). Dari Praktik keinsinyuran ini didapatkan material Tubes SA 213 TP316L ; Tubesheet, Baffles/Tube Support & Floating Head Cover SA 240-316L ; Tie Rods & Spacers SS 316L ; Bolt & Nut SA-193-B7 & SA-194- 2H ; Shell & Shell Cover SA 516 Gr.70 ; Shell Flange SA 105 ; Channel/Bonnet, Channel Cover & Channel Flange SA 105 + SA 240-316L Clad. Jalur kritis pada aktivitas bidding process, project management & administration, engineering, procurement, heat exchanger installation, dan pre-commisioning & commissioning dengan total keseluruhan durasi proyek yaitu 543 Hari. ...... Central gathering station 10 (CGS-10) accommodates all fluids from several oil wells. Incoming fluid in the CGS-10 area is currently 212,000 BOPD. In 2030, production will increase by 312,000 BOPD. Several scenarios carried out resulted in the conclusion that the heat exchanger performance was not normal because the maximum outlet temperature of the fluid under various conditions did not reach 175°F. After assessing the capacity adequacy of existing facilities, it is necessary to add a heat exchanger. In this engineering practice, mechanical design analysis is carried out based on process data sheets and project scheduling based on material take off (MTO) analysis in civil & piping construction work, assisted by Microsoft Project software which makes it easier to create engineering, procurement & construction (EPC Schedules). From this engineering practice, the material Tubes SA 213 TP316L was obtained; Tubesheet, Baffles/Tube Support & Floating Head Cover SA 240-316L ; Tie Rods & Spacers SS 316L ; Bolt & Nut SA-193-B7 & SA-194-2H ; Shell & Shell Cover SA 516 Gr.70 ; Shell Flange SA 105; Channel/Bonnet, Channel Cover & Channel Flange SA 105 + SA 240-316L Clad. The critical path includes bidding process, project management & administration, engineering, procurement, heat exchanger installation, and pre-commissioning & commissioning activities with a total project duration of 543 days.

Abstrak :
ABSTRAK Permasalahan yang dihadapi oleh Lubes Oil Blending Plant (LOBP) Jakarta dewasa ini adalah perencanaan dan pengendalian persediaan material yang sesuai dengan kondisi yang ada diperusahaan. Beranjak dari masalah tersebut, maka tujuan dari studi ini adalah menyusun perencanaan dan pengendalian persediaan sebagai upaya memperbaiki sistem yang ada. Dari hasil evaluasi dan analisa, maka diusulkan suatu alternatif untuk pemecahan masalah tersebut yaitu dengan pendekatan Material Requirement Planning (MRP). Masukan utama dari metode MRP adalah Master Production Schedule (MPS) , Bill of Material (BOM) dan inventory Record dan sebagai keluarannya adalah perencanaan produksi atau perencanaan pembelian. Proses MRP meliputi netting , lotting dengan memperbandingkan tiga teknik lot size untuk mendapatkan ukuran lot yang ekonomis, serta diikuti dengan offseting dan explosion. Dengan penerapan metode MRP yang diusulkan diharapkan Perusahaan tidak akan kehilangan penjualan potensial sebesar Rp 45,3 miliyar pada tahun 199711998. Metode MRP dapat memberikan informasi yang diperlukan untuk pertimbangan dalam pengambilan keputusan.

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ABSTRACT Problem faced by Jakarta Lubes Oil Blending Plant (LOBP) nowadays are the planning and inventory control problems which must be in accordance with the firm's condition and business environment. Based on the problems identified, the objective of this study is to document the planning and inventory control as a mean to improve the existing system. From the evaluation and analysis results, it is proposed to use the Material Requirement Planning (MRP) approach to solve the problems.The main input for the MRP method are the Master Production Schedule (MPS), Bill of Material (BOM), and Inventory Record, while the output are the Production Planning and Purchase Order Planning. MRP processes include the netting and lotting by comparing three lot size technique to find out the most economical lot size and then followed by the offseting and explosion. By implementing the proposed MRP method, the company would not lose its approximately Rp 45.3 billion potential sales in the year 199711998. The MRP method also supplies necessary information to be considered in the decision making process.

Abstrak :
This book addresses a wide range of issues relating to the theoretical substantiation of the necessity of Industry 4.0, the development of the methodological tools for its analysis and evaluation, and practical solutions for effectively managing this process. It particularly focuses on solving the problem of optimizing the development of Industry 4.0 in the context of knowledge economy formation. The book presents the authors' approach to studying the process of Industry 4.0 formation in connection with knowledge economy, and approach that allows the process to be studied in connection with the existing socio-economic and technological conditions. As a result, the conclusions and recommendations could be applied to modern economic systems and do not require any further elaboration. The presented research is based on modern economic theory scientific and methodological tools, including the tools of the theory of economic cycles, the theory of games, and the institutional economic theory. Raising awareness of the problem of Industry 4.0 formation, the book is of interest to a wide audience, including not only specialists and experts with a detailed knowledge of the topic, but also scholars, lecturers, and undergraduates of various fields of economics