Prof. Takeshi Tsuji, “The methods of selecting and characterising a CO2 geological storage site in Japan” for 15th Study Meeting held by Global CCS Institute Japan Office
Variational Template Machine for Data-to-Text Generationharmonylab
公開URL:https://openreview.net/forum?id=HkejNgBtPB
出典:Rong Ye, Wenxian Shi, Hao Zhou, Zhongyu Wei, Lei Li : Variational Template Machine for Data-to-Text Generation, 8th International Conference on Learning Representations(ICLR2020), Addis Ababa, Ethiopia (2020)
概要:Table形式の構造化データから文章を生成するタスク(Data-to-Text)において、Variational Auto Encoder(VAE)ベースの手法Variational Template Machine(VTM)を提案する論文です。Encoder-Decoderモデルを用いた既存のアプローチでは、生成文の多様性に欠けるという課題があります。本論文では多様な文章を生成するためにはテンプレートが重要であるという主張に基づき、テンプレートを学習可能なVAEベースの手法を提案します。提案手法では潜在変数の空間をテンプレート空間とコンテンツ空間に明示的に分離することによって、正確で多様な文生成が可能となります。また、table-textのペアデータだけではなくtableデータのないraw textデータを利用した半教師あり学習を行います。
Northern Lights: A European CO2 transport and storage project Global CCS Institute
The Global CCS Institute hosted the final webinar of its "Telling the Norwegian CCS Story" series which presented Northern Lights. This project is part of the Norwegian full-scale CCS project which will include the capture of CO2 at two industrial facilities (cement and waste-to-energy plants), transport and permanent storage of CO2 in a geological reservoir on the Norwegian Continental Shelf.
Northern Lights aims to establish an open access CO2 transport and storage service for Europe. It is the first integrated commercial project of its kind able to receive CO2 from a variety of industrial sources. The project is led by Equinor with two partners Shell and Total. Northern Lights aims to drive the development of CCS in Europe and globally.
Webinar: Policy priorities to incentivise large scale deployment of CCSGlobal CCS Institute
The Global CCS Institute released a new report highlighting strategic policy priorities for the large-scale deployment of carbon capture and storage (CCS). The Institute’s report also reviews the progress achieved until now with existing policies and the reasons behind positive investment decisions for the current 23 large-scale CCS projects in operation and construction globally.
Variational Template Machine for Data-to-Text Generationharmonylab
公開URL:https://openreview.net/forum?id=HkejNgBtPB
出典:Rong Ye, Wenxian Shi, Hao Zhou, Zhongyu Wei, Lei Li : Variational Template Machine for Data-to-Text Generation, 8th International Conference on Learning Representations(ICLR2020), Addis Ababa, Ethiopia (2020)
概要:Table形式の構造化データから文章を生成するタスク(Data-to-Text)において、Variational Auto Encoder(VAE)ベースの手法Variational Template Machine(VTM)を提案する論文です。Encoder-Decoderモデルを用いた既存のアプローチでは、生成文の多様性に欠けるという課題があります。本論文では多様な文章を生成するためにはテンプレートが重要であるという主張に基づき、テンプレートを学習可能なVAEベースの手法を提案します。提案手法では潜在変数の空間をテンプレート空間とコンテンツ空間に明示的に分離することによって、正確で多様な文生成が可能となります。また、table-textのペアデータだけではなくtableデータのないraw textデータを利用した半教師あり学習を行います。
Northern Lights: A European CO2 transport and storage project Global CCS Institute
The Global CCS Institute hosted the final webinar of its "Telling the Norwegian CCS Story" series which presented Northern Lights. This project is part of the Norwegian full-scale CCS project which will include the capture of CO2 at two industrial facilities (cement and waste-to-energy plants), transport and permanent storage of CO2 in a geological reservoir on the Norwegian Continental Shelf.
Northern Lights aims to establish an open access CO2 transport and storage service for Europe. It is the first integrated commercial project of its kind able to receive CO2 from a variety of industrial sources. The project is led by Equinor with two partners Shell and Total. Northern Lights aims to drive the development of CCS in Europe and globally.
Webinar: Policy priorities to incentivise large scale deployment of CCSGlobal CCS Institute
The Global CCS Institute released a new report highlighting strategic policy priorities for the large-scale deployment of carbon capture and storage (CCS). The Institute’s report also reviews the progress achieved until now with existing policies and the reasons behind positive investment decisions for the current 23 large-scale CCS projects in operation and construction globally.
Telling the Norwegian CCS Story | PART II: CCS: the path to a sustainable and...Global CCS Institute
The Global CCS Institute in collaboration with Gassnova hosted the second webinar of its "Telling the Norwegian CCS Story" series.
The second webinar presented Norcem's CCS project at their cement production facility in Brevik, in the South-Eastern part of Norway.
Telling the Norwegian CCS Story | PART I: CCS: the path to sustainable and em...Global CCS Institute
In 2018, the Norwegian government announced its decision to continue the planning of a demonstration project for CO2 capture, transport and storage. This webinar focuses on the Fortum Oslo Varme CCS project. This is one of the two industrial CO2 sources in the Norwegian full-scale project.
At their waste-to-energy plant at Klemetsrud in Oslo, Fortum Oslo Varme produces electricity and district heating for the Oslo region by incinerating waste. Its waste-to-energy plant is one of the largest land-based sources of CO2 emissions in Norway, counting for about 20 % of the city of Oslo’s total emissions. The CCS project in Oslo is an important step towards a sustainable waste system and the creation of a circular economy. It will be the first energy recovery installation for waste disposal treatment with full-scale CCS.
Fortum Oslo Varme has understood the enormous potential for the development of a CCS industry in the waste-to-energy industry. The company is working to capture 90 % of its CO2 emissions, the equivalent of 400 000 tons of CO2 per year. This project will open new opportunities to reduce emissions from the waste sector in Norway and globally. Carbon capture from waste incineration can remove over 90 million tons of CO2 per year from existing plants in Europe. There is high global transfer value and high interest in the industry for the project in Oslo.
The waste treated consists of almost 60 % biological carbon. Carbon capture at waste-to-energy plants will therefore be so-called BIO-CCS (i.e. CCS from the incineration of organic waste, thereby removing the CO2 from the natural cycle).
Find out more about the project by listening to our webinar.
Decarbonizing Industry Using Carbon Capture: Norway Full Chain CCSGlobal CCS Institute
Industrial sectors such as steel, cement, iron, and chemicals production are responsible for over 20 percent of global carbon dioxide (CO2) emissions. To be on track to meet greenhouse gas emissions reduction targets established as part of the Paris Climate Accord, all sectors must find solutions to rapidly decarbonize, and carbon capture and storage (CCS) technology is the only path for energy-intensive industries.
This webinar will explore how one country, Norway, is working to realize a large-scale Full Chain CCS project, where it is planning to apply carbon capture technology to several industrial facilities. This unique project explores capturing CO2 from three different industrial facilities - an ammonia production plant, a waste-to-energy plant, and a cement production facility. Captured CO2 will be then transported by ship to a permanent off-shore storage site operated as part of a collaboration between Statoil, Total, and Shell. When operational, Norway Full Chain CCS will capture and permanently store up to 1.5 million tons of CO2 per year.
During this webinar, Michael Carpenter, Senior Adviser at Gassnova, will provide an overview of the Norway Full Chain CCS, and discuss the value that Norway aims to derive from it. The key stakeholders working on this exciting project, and how they cooperate, will be also discussed. Gassnova is a Norwegian state enterprise focusing on CCS technology, which manages the Norway Full Chain CCS project.
Cutting Cost of CO2 Capture in Process Industry (CO2stCap) Project overview &...Global CCS Institute
The CO2StCap project is a four year initiative carried out by industry and academic partners with the aim of reducing capture costs from CO2 intensive industries (more info here). The project, led by Tel-Tek, is based on the idea that cost reduction is possible by capturing only a share of the CO2emissions from a given facility, instead of striving for maximized capture rates. This can be done in multiple ways, for instance by capturing only from the largest CO2 sources at individual multi-stack sites utilising cheap waste heat or adapting the capture volumes to seasonal changes in operations.
The main focus of this research is to perform techno-economic analyses for multiple partial CO2 capture concepts in order to identify economic optimums between cost and volumes captured. In total for four different case studies are developed for cement, iron & steel, pulp & paper and ferroalloys industries.
The first part of the webinar gave an overview of the project with insights into the cost estimation method used. The second part presented the iron & steel industry case study based on the Lulea site in Sweden, for which waste-heat mapping methodology has been used to assess the potential for partial capture via MEA-absorption. Capture costs for different CO2 sources were compared and discussed, demonstrating the viability of partial capture in an integrated steelworks.
Webinar presenters included Ragnhild Skagestad, senior researcher at Tel-Tek; Maximilian Biermann, PhD student at Division of Energy Technology, Chalmers University of Technology and Maria Sundqvist, research engineer at the department of process integration at Swerea MEFOS.
The Global CCS Institute and USEA co-hosted a briefing on the importance of R&D in advancing energy technologies on June 29 2017. This is the presentation given by Ron Munson, Global Lead-Capture at the Global CCS Institute.
The Global CCS Institute and USEA co-hosted a briefing on the importance of R&D in advancing energy technologies on June 29 2017. This is the presentation given by Alfred “Buz” Brown, Founder, CEO and Chairman of ION Engineering.
The Global CCS Institute and USEA co-hosted a briefing on the importance of R&D in advancing energy technologies on June 29 2017. This is the presentation given by Tim Merkel, Director, Research and Development Group at Membrane Technology & Research (MTR)
Mission Innovation aims to reinvigorate and accelerate global clean energy innovation with the objective to make clean energy widely affordable. Through a series of Innovation Challenges, member countries have pledged to support actions aimed at accelerating research, development, and demonstration (RD&D) in technology areas where MI members believe increased international attention would make a significant impact in our shared fight against climate change. The Innovation Challenges cover the entire spectrum of RD&D; from early stage research needs assessments to technology demonstration projects.
The Carbon Capture Innovation challenge aims to explore early stage research opportunities in the areas of Carbon Capture, Carbon Utilization, and Carbon Storage. The goal of the Carbon Capture Innovation Challenge is twofold: first, to identify and prioritize breakthrough technologies; and second, to recommend research, development, and demonstration (RD&D) pathways and collaboration mechanisms.
During the webinar, Dr Tidjani Niass, Saudi Aramco, and Jordan Kislear, US Department of Energy, provided an overview of progress to date. They also highlighted detail opportunities for business and investor engagement, and discuss future plans for the Innovation Challenge.
Karl Hausker, PhD, Senior Fellow, Climate Program, World Resources Institute, is the leader of the analytic and writing team for the latest study by the Risky Business Project: From Risk to Return: Investing in a Clean Energy Economy. Co-Chairs Michael Bloomberg, Henry Paulson, Jr, and Thomas Steyer tasked the World Resources Institute with this independent assessment of technically and economically feasible pathways that the US could follow to achieve an 80% reduction in CO2 emissions by 2050. These pathways involve mixtures of: energy efficiency, renewable energy, nuclear power, carbon capture and storage, increased carbon sequestration in US lands, and reductions in non-CO2 emissions. These pathways rely on commercial or near-commercial technologies that American companies are adopting and developing.
Dr Hausker presented the results of the study and draw some comparisons to the US Mid Century Strategy report submitted to the UNFCCC. He has worked for 30 years in the fields of climate change, energy, and environment in a career that has spanned legislative and executive branches, research institutions, NGOs, and consulting.
This webinar offered a unique opportunity to learn more about various decarbonization scenarios and to address your questions directly to Dr Hausker.
Webinar Series: Carbon Sequestration Leadership Forum Part 1. CCUS in the Uni...Global CCS Institute
The Carbon Sequestration Leadership Forum (CSLF) is a Ministerial-level international climate change initiative that is focused on the development of improved cost-effective technologies for carbon capture and storage (CCS). As part of our commitment to raising awareness of CCS policies and technology, CSLF, with support from the Global CCS Institute, is running a series of webinars showcasing academics and researchers that are working on some of the most interesting CCS projects and developments from around the globe.
This first webinar comes to you from Abu Dhabi – the site of the Mid-Year CSLF Meeting and home of the Al Reyadah Carbon Capture, Utilization & Storage (CCUS) Project. The United Arab Emirates (UAE) is one of the world’s major oil exporters, with some of the highest levels of CO2 emissions per capita. These factors alone make this a very interesting region for the deployment of CCUS both as an option for reducing CO2 emissions, but also linking these operations for the purposes of enhanced oil recovery (EOR) operations.
In the UAE, CCUS has attracted leading academic institutes and technology developers to work on developing advanced technologies for reducing CO2 emissions. On Wednesday, 26th April, we had the opportunity to join the Masdar Institute’s Associate Professor of Chemical Engineering, Mohammad Abu Zahra to learn about the current status and potential for CCUS in the UAE.
Mohammad presented an overview of the current large scale CCUS demonstration project in the UAE, followed by a presentation and discussion of the ongoing research and development activities at the Masdar Institute.
This webinar offered a rare opportunity to put your questions directly to this experienced researcher and learn more about the fascinating advances being made at the Masdar Institute.
Energy Security and Prosperity in Australia: A roadmap for carbon capture and...Global CCS Institute
On 15 February, a Roadmap titled for Energy Security and Prosperity in Australia: A roadmap for carbon capture and storage was released. The ACCS Roadmap contains analysis and recommendations for policy makers and industry on much needed efforts to ensure CCS deployment in Australia.
This presentation focused on the critical role CCS can play in Australia’s economic prosperity and energy security. To remain within its carbon budget, Australia must accelerate the deployment of CCS. Couple with this, only CCS can ensure energy security for the power sector and high-emissions industries whilst maintain the the vital role the energy sector plays in the Australian economy.
The webinar also detailed what is required to get Australia ready for widespread commercial deployment of CCS through specific set of phases, known as horizons in strategic areas including storage characterisation, legal and regulatory frameworks and public engagement and awareness.
The Roadmap serves as an important focal point for stakeholders advocating for CCS in Australia, and will provide a platform for further work feeding into the Australian Government’s review of climate policy in 2017 and beyond.
It is authored by the University of Queensland and Gamma Energy Technology, and was overseen by a steering committee comprising the Commonwealth Government, NSW Government, CSIRO, CO2CRC Limited, ACALET - COAL21 Fund and ANLEC R&D.
This webinar was presented by Professor Chris Greig, from The University of Queensland.
Webinar Series: Public engagement, education and outreach for CCS. Part 5: So...Global CCS Institute
The fifth webinar in the public engagement, education and outreach for CCS Series will explore the critically important subject of social site characterisation with the very researchers who named the process.
We were delighted to be able to reunite CCS engagement experts Sarah Wade and Sallie Greenberg, Ph.D. to revisit their 2011 research and guidance: ‘Social Site Characterisation: From Concept to Application’. When published, this research and toolkit helped early CCS projects worldwide to raise the bar on their existing engagement practices. For this webinar, we tasked these early thought leaders with reminding us of the importance of this research and considering the past recommendations in today’s context. Sarah and Sallie tackled the following commonly asked questions:
What exactly is meant by social site characterisation?
Why it is important?
What would they consider best practice for getting to understand the social intricacies and impacts of a CCS project site?
This entire Webinar Series has been designed to share leading research and best practice and consider these learnings as applied to real project examples. So for this fifth Webinar, we were really pleased to be joined by Ruth Klinkhammer, Senior Manager, Communications and Engagement at CMC Research Institutes. Ruth agreed to share some of her experiences and challenges of putting social site characterisation into practice onsite at some of CMC’s larger research projects.
This Webinar combined elements of public engagement research with real world application and discussion, explore important learnings and conclude with links to further resources for those wishing to learn more. This a must for anyone working in or studying carbon capture and storage or other CO2 abatement technologies. If you have ever nodded along at a conference where the importance of understanding stakeholders is acknowledged, but then stopped to wonder – what might that look like in practice? This Webinar is for you.
Managing carbon geological storage and natural resources in sedimentary basinsGlobal CCS Institute
To highlight the research and achievements of Australian researchers, the Global CCS Institute, together with Australian National Low Emissions Coal Research and Development (ANLEC R&D), will hold a series of webinars throughout 2017. Each webinar will highlight a specific ANLEC R&D research project and the relevant report found on the Institute’s website.
This is the eighth webinar of the series and will present on basin resource management and carbon storage. With the ongoing deployment of CCS facilities globally, the pore space - the voids in the rock deep in sedimentary basins – are now a commercial resource. This is a relatively new concept with only a few industries utilising that pore space to date.
This webinar presented a framework for the management of basin resources including carbon storage. Prospective sites for geological storage of carbon dioxide target largely sedimentary basins since these provide the most suitable geological settings for safe, long-term storage of greenhouse gases. Sedimentary basins can host different natural resources that may occur in isolated pockets, across widely dispersed regions, in multiple locations, within a single layer of strata or at various depths.
In Australia, the primary basin resources are groundwater, oil and gas, unconventional gas, coal and geothermal energy. Understanding the nature of how these resources are distributed in the subsurface is fundamental to managing basin resource development and carbon dioxide storage. Natural resources can overlap laterally or with depth and have been developed successfully for decades. Geological storage of carbon dioxide is another basin resource that must be considered in developing a basin-scale resource management system to ensure that multiple uses of the subsurface can sustainably and pragmatically co-exist.
This webinar was presented by Karsten Michael, Research Team Leader, CSIRO Energy.
Mercury and other trace metals in the gas from an oxy-combustion demonstratio...Global CCS Institute
To highlight the research and achievements of Australian researchers, the Global CCS Institute together with ANLEC R&D will hold a series of webinars throughout 2017. Each webinar will highlight a specific ANLEC R&D research project and the relevant report found on the Institute’s website. This is the seventh webinar of the series and presented the results of a test program on the retrofitted Callide A power plant in Central Queensland.
The behaviour of trace metals and the related characteristics of the formation of fine particles may have important implications for process options, gas cleaning, environmental risk and resultant cost in oxy-fuel combustion. Environmental and operational risk will be determined by a range of inter-related factors including:
The concentrations of trace metals in the gas produced from the overall process;
Capture efficiencies of the trace species in the various air pollution control devices used in the process; including gas and particulate control devices, and specialised systems for the removal of specific species such as mercury;
Gas quality required to avoid operational issues such as corrosion, and to enable sequestration in a variety of storage media without creating unacceptable environmental risks; the required quality for CO2 transport will be defined by (future and awaited) regulation but may be at the standards currently required of food or beverage grade CO2; and
Speciation of some trace elements
Macquarie University was engaged by the Australian National Low Emissions Coal Research and Development Ltd (ANLEC R&D) to investigate the behaviour of trace elements during oxy-firing and CO2 capture and processing in a test program on the retrofitted Callide A power plant, with capability for both oxy and air-firing. Gaseous and particulate sampling was undertaken in the process exhaust gas stream after fabric filtration at the stack and at various stages of the CO2 compression and purification process. These measurements have provided detailed information on trace components of oxy-fired combustion gases and comparative measurements under air fired conditions. The field trials were supported by laboratory work where combustion took place in a drop tube furnace and modelling of mercury partitioning using the iPOG model.
The results obtained suggest that oxy-firing does not pose significantly higher environmental or operational risks than conventional air-firing. The levels of trace metals in the “purified” CO2 gas stream should not pose operational issues within the CO2 Processing Unit (CPU).
This webinar was presented by Peter Nelson, Professor of Environmental Studies, and Anthony Morrison, Senior Research Fellow, from the Department of Environmental Sciences, Macquarie University.
Webinar Series: Public engagement, education and outreach for CCS. Part 4: Is...Global CCS Institute
Teesside Collective has been developing a financial support mechanism to kickstart an Industrial Carbon Capture and Storage (CCS) network in the UK. This project would transform the Teesside economy, which could act as a pilot area in the UK as part of the Government’s Industrial Strategy.
The final report– produced by Pöyry Management Consulting in partnership with Teesside Collective – outlines how near-term investment in CCS can be a cost-effective, attractive proposition for both Government and energy-intensive industry.
The report was published on Teesside Collective’s website on 7 February. You will be able to view copies of the report in advance of the webinar.
We were delighted to welcome Sarah Tennison from Tees Valley Combined Authority back onto the webinar programme. Sarah was joined by Phil Hare and Stuart Murray from Pöyry Management Consulting, to take us through the detail of the model and business case for Industrial CCS.
This webinar offered a rare opportunity to speak directly with these project developers and understand more about their proposed financial support mechanism.
Laboratory-scale geochemical and geomechanical testing of near wellbore CO2 i...Global CCS Institute
To highlight the research and achievements of Australian researchers, the Global CCS Institute together with ANLEC R&D will hold a series of webinars throughout 2016 and 2017. Each webinar will highlight a specific ANLEC R&D research project and the relevant report found on the Institute’s website. This is the sixth webinar of the series and presented the results of chemical and mechanical changes that carbon dioxide (CO2) may have at a prospective storage complex in the Surat Basin, Queensland, Australia.
Earth Sciences and Chemical Engineering researchers at the University of Queensland have been investigating the effects of supercritical CO2 injection on reservoir properties in the near wellbore region as a result of geochemical reactions since 2011. The near wellbore area is critical for CO2 injection into deep geological formations as most of the resistance to flow occurs in this region. Any changes to the permeability can have significant economic impact in terms of well utilisation efficiency and compression costs. In the far field, away from the well, the affected reservoir is much larger and changes to permeability through blocking or enhancement have relatively low impact.
This webinar was presented by Prof Sue Golding and Dr Grant Dawson and will provide an overview of the findings of the research to assist understanding of the beneficial effects and commercial consequences of near wellbore injectivity enhancement as a result of geochemical reactions.
Webinar Series: Public engagement, education and outreach for CCS. Part 3: Ca...Global CCS Institute
The third webinar in the public engagement, education and outreach for CCS Series digged deeper, perhaps multiple kilometres deeper, to explore successful methods for engaging the public on the often misunderstood topic of carbon (CO2) storage.
Forget bad experiences of high school geology, we kick-started our 2017 webinar program with three ‘rock stars’ of CO2 storage communication – Dr Linda Stalker, Science Director of Australia’s National Geosequestration Laboratory, Lori Gauvreau, Communication and Engagement Specialist for Schlumberger Carbon Services, and Norm Sacuta, Communication Manager at the Petroleum Technology Research Centre who all joined Kirsty Anderson, the Institute’s Senior Advisor on Public Engagement, to discuss the challenges of communicating about CO2 storage. They shared tips, tools and some creative solutions for getting people engaged with this topic.
This entire Webinar Series has been designed to hear directly from the experts and project practitioners researching and delivering public engagement, education and outreach best practice for carbon capture and storage. This third webinar was less focused on research and more on the real project problems and best practice solutions. It is a must for anyone interested in science communication/education and keen to access resources and ideas to make their own communications more engaging.
Water use of thermal power plants equipped with CO2 capture systemsGlobal CCS Institute
The potential for increased water use has often been noted as a challenge to the widespread deployment of carbon capture and storage (CCS) to mitigate greenhouse gas emissions. Early studies, that are widely referenced and cited in discussions of CCS, indicated that installation of a capture system would nearly double water consumption for thermal power generation, while more recent studies show different results. The Global CCS Institute has conducted a comprehensive review of data available in order to clarify messages around water consumption associated with installation of a capture system. Changes in water use estimates over time have been evaluated in terms of capture technology, cooling systems, and how the data are reported.
Guido Magneschi, Institute’s Senior Advisor – Carbon Capture, and co-author of the study, presented the results of the review and illustrated the main conclusions.
【DLゼミ】XFeat: Accelerated Features for Lightweight Image Matchingharmonylab
公開URL:https://arxiv.org/pdf/2404.19174
出典:Guilherme Potje, Felipe Cadar, Andre Araujo, Renato Martins, Erickson R. ascimento: XFeat: Accelerated Features for Lightweight Image Matching, Proceedings of the 2024 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) (2023)
概要:リソース効率に優れた特徴点マッチングのための軽量なアーキテクチャ「XFeat(Accelerated Features)」を提案します。手法は、局所的な特徴点の検出、抽出、マッチングのための畳み込みニューラルネットワークの基本的な設計を再検討します。特に、リソースが限られたデバイス向けに迅速かつ堅牢なアルゴリズムが必要とされるため、解像度を可能な限り高く保ちながら、ネットワークのチャネル数を制限します。さらに、スパース下でのマッチングを選択できる設計となっており、ナビゲーションやARなどのアプリケーションに適しています。XFeatは、高速かつ同等以上の精度を実現し、一般的なラップトップのCPU上でリアルタイムで動作します。
セル生産方式におけるロボットの活用には様々な問題があるが,その一つとして 3 体以上の物体の組み立てが挙げられる.一般に,複数物体を同時に組み立てる際は,対象の部品をそれぞれロボットアームまたは治具でそれぞれ独立に保持することで組み立てを遂行すると考えられる.ただし,この方法ではロボットアームや治具を部品数と同じ数だけ必要とし,部品数が多いほどコスト面や設置スペースの関係で無駄が多くなる.この課題に対して音𣷓らは組み立て対象物に働く接触力等の解析により,治具等で固定されていない対象物が組み立て作業中に運動しにくい状態となる条件を求めた.すなわち,環境中の非把持対象物のロバスト性を考慮して,組み立て作業条件を検討している.本研究ではこの方策に基づいて,複数物体の組み立て作業を単腕マニピュレータで実行することを目的とする.このとき,対象物のロバスト性を考慮することで,仮組状態の複数物体を同時に扱う手法を提案する.作業対象としてパイプジョイントの組み立てを挙げ,簡易な道具を用いることで単腕マニピュレータで複数物体を同時に把持できることを示す.さらに,作業成功率の向上のために RGB-D カメラを用いた物体の位置検出に基づくロボット制御及び動作計画を実装する.
This paper discusses assembly operations using a single manipulator and a parallel gripper to simultaneously
grasp multiple objects and hold the group of temporarily assembled objects. Multiple robots and jigs generally operate
assembly tasks by constraining the target objects mechanically or geometrically to prevent them from moving. It is
necessary to analyze the physical interaction between the objects for such constraints to achieve the tasks with a single
gripper. In this paper, we focus on assembling pipe joints as an example and discuss constraining the motion of the
objects. Our demonstration shows that a simple tool can facilitate holding multiple objects with a single gripper.
Prof. Takeshi Tsuji, “The methods of selecting and characterising a CO2 geological storage site in Japan” for 15th Study Meeting held by Global CCS Institute Japan Office
1. 1
International Institute for
Carbon-Neutral Energy Research
A World Premier Institute
日本周辺でのCO2地中貯留のポテンシャルと課
題:
それに向けたI²CNERの取り組み
辻 健
九州大学 カーボンニュートラル・エネルギー国際研究所(I2CNER)
九州大学大学院 工学府 地球資源システム工学専攻
http://i2cner.kyushu-u.ac.jp/~ccs-div/re_takeshi.html
6. 6
日本周辺でCO2貯留を実施する場合に克服すべき課
題
Many wells and 3D seismic data in oil field
Wells
3) 限られたCO2貯留層の情報
日本周辺の帯水層にCO2を貯留する場合には、貯留層に関する情報が
少なく、地質モデルの構築が難しい。
限られたデータを使って、地質モデルを構築し、CO2の挙動を予測す
る技術の開発が必要となる。
Dynamic Graphics, INC.
33. 33
マイクロフォーカスX-CTを用いて抽出した実際の間隙に対して、格子ボル
ツマン法(LBM)を適用し、間隙内部のCO2の挙動をシミュレーション
相対浸透率といった水理特性を、貯留層の条件を変えて調べることに成功
貯留層の条件が残留トラッピング量に与える影響を明らかにした
LBM CO2-fluid simulation for Berea sandstone
parameterized by interfacial tension
Inject CO2 into water-saturated rock
Pore space of sandstone extracted
using Micro-X CT (resolution: 2 μm)
Red parts: Injected CO2
Rock
Low interfacial tension
High interfacial tension
Topic 1: 多孔質岩石中のCO2の挙動の解明
Jiang, Tsuji, Hu (2014) Trans. Porous Media
Jiang and Tsuji, (2015) Water Resource Res.
35. 35
世界最高サイズの岩石モデルに対して
LBM流体シミュレーションを適用することに成功
Only 3 companies/institute have done simulations of
5003 (Imperial College, Numerical Rocks, Ingrain)
• ONLY our group have done >10003 simulation
Molecular scale (nm) Pore scale (μm) Core scale(cm) Field scale (km)
(Molecular Dynamic) (Lattice Boltzmann Method) (Darcy’s flow) (Reservoir simulator)
1000x1000x1000
CO2
GPUクラスター(並列計算)の利用
研究室のGPU並列クラスター
Tsubame Super Computer (東工大)
スケールの壁を超える ・ ラボのデータと比較が可能になった(結果のValidation)
36. 36
鉱物化モデル
流体挙動を考慮した鉱物化モデルの確立と、
鉱物化が相対浸透率に与える影響の解明
• Solve CO2 concentration level using
Convection-diffusion equation
RccD
t
c
u
eq
eq
T
c
cc
M
A
kR
• The carbonate precipitation
Model Validation using Lab. Expt.
Mimic beads pack experiment Flow rate evolution during mineralization
Jiang and Tsuji, 2014, Physical Review E
Water
Mineralization
0.5mm
Pore Mineral
CO2
(non-wettable)
貯留層シミュレーションへの導入
37. 37
Topic 2: 貯留層特性を推定する手法の開発
High resolution seismic velocity & pore pressure estimation
地震探査データに波形インバージョンを適用して、弾性
波速度を正確に決定し、間隙水圧分布を推定
Tsuji et al. 2014 EPSL; Tsuji et al. 2014 EPS
日本のような不均質な地層の評価や、誘発地震の評価に利用
38. 38
表面波探査から推定した高解像度
のS波速度
Ikeda et al. 2013 Geophysics
表面波探査から推定した減衰定数
Ikeda and Tsuji, in revision, EPS
表面波解析
地層の強度(ポアソン比)と関係するS波速度を推定する手法
の開発
漏洩経路となる微細なフラクチャー検出のための新しい手法の
開発
日本のような不均質な地層の評価や、誘発地震の評価に利用
Topic 2: 貯留層特性を推定する手法の開発
40. 40
分解能: ±0.003pH
応答時間(水深3000m, 1.8℃): 1秒以下@pH, 60秒以下@pCO2
pH sensor pCO2 sensor
・ガス透過膜:アモルファステフロン
(Teflon® AF, DuPont)
・内部液:約3mlの1.5%NaCl溶液
4 cm
Teflon® AF
ISFET Cl-ISE
内部液
3 cm
ISFET
Cl-ISE
pH sensor
pCO2 sensor
Li-ion
battery
Pressure vessel
(ø80, 200L)
Electric circuit board
of pH and pCO2
・pH電極:イオン感応性電界効果型トランジスタ
(ISFET)
・参照電極:塩素イオン選択性電極(Cl-ISE)
下島と許, 1998
Shitashima, et al., 2002
ー現場型pH/pCO2センサの開発ー
Topic 4: 漏洩CO2のモニタリング手法の開発
41. 41
a) : 長期モニタリング用センサ
b) : リアルタイムモニタリング用センサ
c) : 堆積物中モニタリング用センサ
pH/pCO2センサによる漏洩CO2のモニタリング/マッピング技術
◇測定項目
・pH
・pCO2
・ORP
・水温
・塩分
・DO
・流速
・クロロフィル
・濁度
・海底地形
pH
pCO2
ORP
d) : センサ搭載AUV/ROV
小型AUV (REMUS
100)
Micro-ROV
(VideoRay)
pH/pCO2/ORP Sensor
Blackford et al. 2014 Nature Climate Change
Shitashima et al. 2015 Int J Greenhouse Gas Control
42. 42
Our group uses multidisciplinary
approach to reveal dynamic CO2
behavior from the nano-scale to the
km-scale.
マルチスケールのCO2挙動の解
明
(スケールの壁を打ち破る)
Develop high resolution survey
43. 43
テクトニックな活動が盛んな場所でのCCS:
Gundih pilot CCS project, Indonesia
The CO2 content within the produced
gas is more than 20%
CO2 injection near the gas production
well could be effective way to avoid
abundant CO2 emission
インドネシアもテクトニクスの活
動の盛んな場所
基礎研究だけではなく、実際にプロジェクトを実施し、テク
トニックな活動の盛んな場所でのCCSに向けたモニタリン
グ・モデリングの手順書を作成する
44. 44
Comparison between Japanese Island and Java Island
• One of the reasons why we are interested in the CCS in Indonesia
Similar tectonic setting
N
N
Plate subduction
Nagaoka
Tomakomai
Gundih
Japan
Indonesia
46. 46
Synthetic Composite
Log AI Vs. Inverted AI
正確に地質モデルを構築
音響インピーダンス (=Vp x ρ )
を波形インバージョンによっ
て推定
高解像度の地質モデルを作
成
AI from logging
AIfrominversionTime(ms)
Time(ms)
Tsuji et al. 2014 Energy Procedia
47. 47
Example of CO2 Saturation
(10kt/y; 60C; 2 year)
地質モデルに対して、貯留層シミュレーシ
ョンの実施
背斜構造の軸に沿ってCO2が移動
断層の場所での間隙水圧の上昇も調査
Tsuji et al. 2014 Energy Procedia