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"Offshore wind energy cost modeling provides a methodological framework to assess installation and decommissioning costs, and using examples from the European experience, provides a broad review of existing processes and systems used in the offshore wind industry. This book a step-by-step guide to modeling costs over four sections. These sections cover, background and introductory material, installation processes and vessel requirements, installation cost estimation, and decommissioning methods and cost estimation. This self-contained and detailed treatment of the key principles in offshore wind development is supported throughout by visual aids and data tables. Offshore wind wnergy cost modeling is a key resource for anyone interested in the offshore wind industry, particularly those interested in the technical and economic aspects of installation and decommissioning. The book provides a reliable point of reference for industry practitioners and policy makers developing generalizable installation or decommissioning cost estimates."

"The book presents novel Computational Fluid Dynamics (CFD) techniques to compute offshore wind and tidal applications. The papers in this volume are based on a mini-symposium held at ECCOMAS 2018. Computational fluid dynamics (CFD) techniques are regarded as the main design tool to explore the new engineering challenges presented by offshore wind and tidal turbines for energy generation.The difficulty and costs of undertaking experimental tests in offshore environments have increased the interest in CFD which is used to design appropriate turbines and blades, understand fluid flow physical phenomena associated with offshore environments, predict power production or characterise offshore environments amongst other topics."

"Kelayakan operasi instalasi anjungan migas lepas pantai antara 25-30 tahun. Beberapa anjungan migas di Laut Jawa dibangun tahun 70-an, sehingga kondisinya sudah tua dan akan di dekomisioning, yaitu pembongkaran keseluruhan atau sebagian struktur instalasi anjungan. Masalah dekomisioning di Laut Jawa adalah Indonesia belum memiliki pengalaman dekomisioning dan banyaknya regulasi terkait kegiatan dekomisioning. Permasalahan dekomisioning dapat diselesaikan melalui regulasi yang komprehensif. Tujuan riset ini menganalisis ketentuan internasional dan regulasi dekomisioning di indonesia, dan mengkaji alternatif metode dekomisioning di Laut Jawa berdasarkan pendekatan aspek lingkungan, sosial dan ekonomi. Riset ini menggunakan pendekatan kualitatif, melakukan wawancara mendalam dengan 3 institusi pemerintah pusat dan 1 kontraktor migas. Metode Analisis Dampak Regulasi (Regulation Impact Analysis) digunakan untuk membantu menentukan alternatif kebijakan dan regulasi dekomisioning terbaik dari sudut pandang manfaat dan biaya. Hasil riset ini menunjukkan diperlukan pembuatan regulasi dekomisioning secara holistik, multisektor, multidisiplin dan interdisiplin. Hasil lainnya yaitu metode dekomisioning di Laut Jawa berdasarkan pandangan institusi pemerintah pusat adalah program rig-to-reef karena lebih memenuhi prinsip keberlanjutan. Kesimpulannya adalah belum adanya aturan hukum di Indonesia yang mengakomodir metode dekomisioning dengan program rig-to-reef, mengakibatkan program rig-to-reef pada dekomisioning di Laut Jawa belum bisa langsung diterpakan karena harus dilakukan pembahasan panjang melibatkan seluruh pemangku kepentingan yang terkait.

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Feasibility of installation operations for offshore oil and gas platforms between 25-30 years. Some oil and gas platforms in the Java Sea were built in the 70s, so that the condition is old and will be decommissioned, namely the dismantling of the whole or part of the structure of the bridge installation. The problem of decommissioning in the Java Sea is that Indonesia does not have experience in decommissioning and the number of regulations related to decommissioning activities. Decommissioning issues can be resolved through comprehensive regulation.

The purpose of this research is to analyze international provisions and decommissioning regulations in Indonesia, and to examine alternative methods of decommissioning in the Java Sea based on environmental, social and economic aspects. This research uses a qualitative approach, conducts in-depth interviews with 3 central government institutions and 1 oil and gas contractor. The Regulatory Impact Analysis method is used to help determine the best alternative decommissioning policies and regulations from the point of view of benefits and costs.

The results of this research indicate that decommissioning regulation is needed in a holistic, multisector, multidisciplinary and interdisciplinary manner. Another result, namely the decommissioning method in the Java Sea based on the views of central government institutions, is a rig-to-reef program because it meets the principle of sustainability.

The conclusion is that there is no legal rule in Indonesia that accommodates the decommissioning method with rig-to-reef programs, resulting in a rig-to-reef program on decommissioning in the Java Sea that cannot be directly implemented because long discussions must be conducted involving all related stakeholders."

"Alternative energy, nowadays, becomes more necessary than fossil fuels which might be destructing and polluting the earth’s environment. Wind can be one of the most cheap, secure, environment friendly and reliable energy supplies. Building Integrated Wind Turbine (BIWT) is becoming increasingly common as a green building icon and new method of assessing optimal building energy. However, to employ BIWT, it is important to design the building shape and swept area carefully to increase wind velocity. Some of numerous design forms of BIWT will be explained in this paper using CFD (Computational Fluid Dynamics) analysis to find the most effective BIWT design in urban area. This paper will focus on the maximum wind velocity which passes the swept area to get maximum wind power. The result shows that, building energy can be optimized through aerodynamic building design to get the maximum wind power for building energy consumption."

"Wind energy conversion system covers the technological progress of wind energy conversion systems, along with potential future trends. It includes recently developed wind energy conversion systems such as multi-converter operation of variable-speed wind generators, lightning protection schemes, voltage flicker mitigation and prediction schemes for advanced control of wind generators.Modeling and control strategies of variable speed wind generators are discussed, together with the frequency converter topologies suitable for grid integration. Wind Energy Conversion System also describes offshore farm technologies including multi-terminal topology and space-based wind observation schemes, as well as both AC and DC based wind farm topologies. The stability and reliability of wind farms are discussed, and grid integration issues are examined in the context of the most recent industry guidelines. Wind power smoothing, one of the big challenges for transmission system operators, is a particular focus. Fault ride through and frequency fluctuation mitigation using energy storage options are also covered. Efficiency analyses are presented for different types of commercially available wind turbine generator systems, large scale wind generators using superconducting material, and the integration of offshore wind and marine current farms."

"These proceedings gather a selection of refereed papers presented at the 1st Vietnam Symposium on Advances in Offshore Engineering (VSOE 2018), held on 1–3 November 2018 in Hanoi, Vietnam.The contributions from researchers, practitioners, policymakers, and entrepreneurs address technological and policy changes intended to promote renewable energies, and to generate business opportunities in oil and gas and offshore renewable energy. With a special focus on energy and geotechnics, the book brings together the latest lessons learned in offshore engineering, technological innovations, cost-effective and safer foundations and structural solutions, environmental protection, hazards, vulnerability, and risk management. The book offers a valuable resource for all graduate students, researchers and industrial practitioners working in the fields of offshore engineering and renewable energies."