Conference: June 22 – 26, 2020
Exhibition: June 23 – 25, 2020
Go more in-depth on Gas Turbines, Advanced Diagnostics, Additive Manufacturing, Aerospace and Turbochargers by signing up for the Turbo Expo pre-conference workshop on Sunday, June 21, at the ExCeL Convention Center. Registration is available online.
Turbo Expo 2020 pre-conference workshops are subject to cancellation if there are not enough registrants. Anyone interested in attending a workshop needs to register by March 23, 2020.
Sunday, June 21, 2020
8:00 am – 5:00 pm
In gas turbines used for power generation and aircraft propulsion, the main flow paths of compressors and turbines are responsible for the direct energy conversion. To ensure acceptable life (durability) under creep, LCF, and HCF from operational transients causing high temperatures and their gradients in critical engine components, around 20% of the compressor air flow is used for cooling and sealing. This is analogous to blood, water, and air flow within a human body for its proper functioning.
The main thrust of this workshop is to develop a clear understanding of the underlying flow and heat transfer physics and the mathematical modeling of various components of gas turbine secondary air systems (SAS). In addition to developing a clear understanding of the key concepts of thermofluids, the workshop will discuss vortex (free, forced, Rankine, and generalized), windage, and disk pumping in rotor/stator cavities, centrifugally-driven buoyant convection in compressor rotor cavities, pre-swirler systems, multiple reference frames, hot gas ingestion and rim sealing, and whole engine modeling (WEM) using nonlinear multisurface forced vortex convection links with windage in a layered approach. Additionally, the workshop will provide a design-friendly overview of rotating compressible flow network methodology along with robust solution techniques, physics-based post-processing of 3-D CFD results, and the generation of entropy map for design optimization. The workshop will also present a number of design-relevant examples.
Ten (10) complimentary, autographed copies of Gas Turbines: Internal Flow Systems Modeling (Cambridge Aerospace Series) will be distributed among workshop attendees using a random draw.
8:00 am – 10:00 am
Introduction: An Overview of Secondary Air Systems
10:00 am – 10:15 am Break
10:15 am – 12:00 pm
Part II: Special Concepts of Secondary Air Systems
12:00 pm – 1:00 pm Group Lunch
1:00 pm – 2:00 pm
Part II: Special Concepts of Secondary Air Systems (Continued)
2:00 pm – 3:00 pm
Part III: Physics-Based Modeling of SAS Components
3:00 pm – 3:15 pm Break
3:15 pm – 4:00 pm
Part IV: Hot Gas Ingestion and Rim Sealing
4:00 pm – 5:00 pm
Part V: Whole Engine Modeling (WEM)
MS and PhD; Design and research engineers involved in secondary air systems design, whole engine modeling, and active and passive turbine tip clearance control of advanced gas turbines for aircraft propulsion and simple- and combined-cycle power generation, including Oil & Gas and Land & Marine applications; graduate students enrolled in related gas turbines/turbomachinery courses; and faculty members teaching or desirous of introducing a graduate-level course on related topics.
Items to bring to this workshop: A notebook and a pen or pencil to write.
Earn 7 Professional Development Hours (PDH's) and receive a certificate of completion!
Bijay (BJ) K. Sultanian, Ph.D., PE, MBA, ASME Life Fellow
Dr. Bijay Sultanian is an international authority in gas turbine heat transfer, aerodynamics, secondary air systems, and Computational Fluid Dynamics (CFD). Dr. Sultanian is Founder & Managing Member of Takaniki Communications, LLC, a provider of high-impact, web programs for corporate engineering teams. As an Adjunct Professor at the University of Central Florida, he has taught graduate-level courses in Turbomachinery and Fluid Mechanics for 10 years. He has instructed several workshops at ASME Turbo Expo since 2009. During his 30+ years in the gas turbine industry, Dr. Sultanian has worked in and led technical teams at a number of organizations, including Allison Gas Turbines (now Rolls-Royce), GE Aircraft Engines (now GE Aviation), GE Power Generation (now GE Power & Water), and Siemens Energy (now Siemens Gas and Power). He has developed several physics-based improvements to legacy heat transfer and fluid systems design methods, including new tools to analyze critical high-temperature components with and without rotation.
During 1971-81, Dr. Sultanian made landmark contributions toward the design and development of India’s first liquid rocket engine for a surface-to-air missile (Prithvi) and the first numerical heat transfer model of steel ingots for optimal operations of soaking pits in India’s steel plants.
Dr. Sultanian is a Life Fellow of the American Society of Mechanical Engineers; an Emeritus Member of Sigma Xi, The Scientific Research Society; a member of the American Society of Thermal and Fluids Engineers; and a registered Professional Engineer in the State of Ohio. He is the author of Fluid Mechanics: An Intermediate Approach, Gas Turbines: Internal Flow Systems Modeling (Cambridge Aerospace Series), and Logan's Turbomachinery: Flowpath Design and Performance Fundamentals, Third Edition. Dr. Sultanian received his B.Tech. and MS in Mechanical Engineering from Indian Institute of Technology, Kanpur, and Indian Institute of Technology, Madras, respectively. He received his Ph.D. in Mechanical Engineering from Arizona State University, Tempe and MBA from the Lally School of Management and Technology at Rensselaer Polytechnic Institute.
Riccardo Da Soghe, Ph.D.
After graduating in mechanical engineering, Dr. Da Soghe started his research activity, focusing on numerical analysis of gas turbine secondary air system, at the Department of Industrial Engineering (former Energy Engineering S. Stecco) of the University of Florence in 2006, achieving the title of PhD in 2010. Since then, and up to 2015, he worked as research fellow at the above-mentioned department, covering activities related to European research programs focused on aircraft engines.
Dr. Da Soghe has been involved in many collaborations with European Universities for the numerical study of stator-rotor cavities.
Since 2010, Dr. Da Soghe is a member of Ergon Research. The company, that is a University of Florence Spin-Off, supplies highly specialized services for the design the optimization and the development of innovative products, to turbines manufacturing industries and turbomachines users. Dr. Da Soghe role in Ergon Research consists in the supervision of the research branch acting as coordinator of the company CFD activities.
Design/characterization/optimization of compressors, combustors, oil systems and more in general turbine modules with special attention to components aero-thermal issues.
Dr. Da Soghe is a passionate ASME member since 2009 making ASME his preferred institution to submit works. Dr. Da Soghe attended the Turbo Expo conferences since 2008 continuously and served as reviewer and session organizer also (Session Organizer in Internal Air Systems & Seals since 2014, Vanguard Chair since 2018). Dr. Da Soghe is an active member of the ASME K14 committee (Heat Transfer) and acts as reviewer of several international journals such as: International Journal of Heat and Mass Transfer, Journal of Mechanical Engineering Science, Journal of Power and Energy, Journal of Aerospace Engineering, Engineering Science and Technology, Archive of Mechanics, Thermal Science, Engineering Applications of Computational Fluid Mechanics.
Finally, Dr. Da Soghe is currently serving ASME as Associate Editor of the Journal of Engineering of Gas Turbines and Power.
Erinc Erdem, Ph.D.
After graduating from aerospace engineering in Middle East Technical University (METU) in 2002, Dr. Erdem started working for Roketsan Missile Industries, Inc. as a propulsion engineer, focusing on internal aerodynamics of internal solid rocket motors. In 2005, Dr. Erdem obtained his research M.Sc. from von Karman Institute for Fluid Dynamics (VKI) on numerical and experimental investigation of internal flows inside a simplified Ariane 5 rocket motor geometry with slag accumulation. In 2006, he obtained his M.Sc. from mechanical engineering in METU on a subject called numerical investigation of secondary gas injection systems for thrust vectoring. In 2011, he obtained a Ph.D. from the University of Manchester on active flow control studies at Mach 5 involving detailed wind tunnel measurements with various measurement techniques and complementary computational effort. Afterwards he carried on pursuing active research as a postdoctoral associate in the same university on low speed flow control using different actuation mechanisms. During his Ph.D. and postdoc studies, several projects on high/low speed wind tunnel testing were completed involving partners such as ESA, DSTL and EU FR7.
Upon finishing the studies, Dr. Erdem started working for GE Aviation in Turkey in 2013 as thermal systems design lead engineer specializing on engine bay cooling and rotor-stator cooling in gas turbine engines. As of 2015, he is working for TUSAS Engine Industries (TEI) Inc., responsible for mainly thermal systems design comprised of secondary air systems, thermal analysis and component cooling. In addition, he works on radial compressor aerodynamics and rig testing. Dr. Erdem’s role in Chief Engineers Office involves overseeing/reviewing technical activities for the indigenous Turboshaft Engine Development program related to his expertise.
Coordinator for compressor module/whole engine testing, responsible for technical content, planning and budgeting
Dr. Erdem was the editor of the special issue on Secondary Air Systems in Gas Turbine Engines in Aerospace Journal and acted as a reviewer of several international journals such as, Journal of Aerospace Engineering, Aerospace Journal, Journal of Aerospace Science and Technology, The Aeronautical Journal. Dr. Erdem is currently serving as an editor in Aerospace Journal and author/co-author of 10 journal and 30 conference articles and a book chapter.
Sunday, June 21, 2020
1:00 pm – 5:00 pm
The drive to higher efficiencies in turbomachinery will require a new generation of materials capable of running at higher temperatures. Sophisticated designs and cooling systems are needed under these harsh operating conditions. Models are available and employed regularly in industry to simulate temperatures and therefore predict component life and emissions associated to novel designs. Computational fluid dynamics simulations, which are used for the generation of thermal models, will require appropriate temperature verification techniques as a validation check of new designs.
More advanced temperature monitoring for the next generation of materials and designs employed in turbomachinery is needed. As stated by the Propulsion and Instrumentation Working Group, tempertaure information over 80% of the blade aero foil surface is necessary for test monitoring of gas turbine durability in highly efficient engines. Therefore, surface temperature measurement techniques will prove key during material selection, thermal damage evaluation and reliability in-service behavior of components in combustion environments. Further, currently used post operation temperature measurement technologies, such as thermochromic paints, can be a bottleneck in the design process with long processing times hindering the full utilization of new additive manufacturing methods for rapid design validation.
A new measurement technique, called Thermal History Coating and Paint, has recently been developed and tested in gas turbines. The results have demonstrated the capability of the technique, which opens new measurement opportunities and considerations in the design and installation of the instrumentation. It is important that the instrumentation and design community are aware of the capability of this new technique and apply it in a way to extract the maximum benefit.
This course will review the fundamentals, development and current state-of-the art of novel thermal history coatings which promises rapid temperature mapping across complete areas and on complex components post operation. This technology is based on the use of thermographic phosphors, ceramic hosts doped with optically active dopants, which permanently change their structure with temperature. These changes can be interrogated with a suitable laser light, which is absorbed by the thermographic phosphor and then re-emitted and measured using a suitable detector.
The workshop will provide guidance on how to apply this technology to achieve the optimum results, for example preferred test operations, suitable materials and temperature ranges. Through a selection of case studies in industrial environments, the influence of different parameters will be addressed and the methods to overcome these in the calibration process.
Note: this workshop will offer a practical application of the technology. During the workshop the participants will learn to use a customized detection system with a set of calibration samples to generate their own calibration data and apply this on a pre-heated component to detect the past temperature. This will illustrate the ease of the application and the main steps of generating a temperature profile.
1:00 pm – 3:00 pm
Module 1: An Overview of temperature detection using thermographic phosphors
3:15 pm - 5:00
Module 2: Application of temperature memory paints and coatings
This workshop is targeted to engineers who are interested in the fundamentals and application areas of this new type of thermal diagnostic technique applicable in the hot section or secondary air systems of turbines. These are engineers working in heat transfer, instrumentation, diagnostic, lifing or materials evaluation. Participants should have a master’s degree or higher in an engineering or natural science subject. Group leaders, managers, practitioners.
Earn 7 Professional Development Hours (PDH’s) and receive a certificate of completion!
The instructors are frequent participants at the ASME Turbo Expo and have contributed many papers in the past. The company, Sensor Coating Systems, will also support the exhibition in 2020 by having a booth again for the third year running.
Dr Christopher Pilgrim – Technical Director
Christopher is responsible for the technical delivery of customer projects and the development of the technology at Sensor Coating Systems (SCS). He obtained an Engineering Doctorate degree from Imperial College London through the Research Centre for Non-Destructive Evaluation while working at SCS. During the degree he was awarded the Whittle Reactionaries Prize by the Institute of Mechanical Engineers. He completed a Master’s degree in Materials and Mechanical Engineering at the University of Nottingham where he was given the Armourers and Braziers Award.”
Christopher has intimate knowledge about phosphor materials and coatings and their application in industrial environments.
Dr Silvia Araguas Rodriguez - Materials Engineer
Silvia works as a Materials Engineer and focuses on the development of novel phosphorescent pigments and coatings for temperature sensing, as well as their application on industrial components. She has a Ph.D. in Material Science and Engineering from Imperial College London, carried out while working at SCS. Her Ph.D. project focused on the synthesis and development of Thermal History Paints and was co-sponsored by the Royal Commission for the Exhibition of 1851. She previously obtained an MSc in Nanotechnology from UCL in 2014, and BEng in Materials Science from Imperial College.
Dr Jörg Feist – Managing Director
Jörg is responsible for general management at Sensor Coating Systems (SCS) and is a co-founder. Jörg was instrumental in raising finances for the development of the technology from private investors, industry and governmental organisations and led the company to profitability. Jörg has a PhD in Mechanical Engineering from Imperial College London and a Master’s degree in Physics (German ‘Diplom-Physiker’). He was responsible for delivering various programs to the Office of Naval Research, the Centre of Defence Enterprise, the EU Framework programs, several UK co-funded projects for Innovate UK and the Carbon Trust and multi-lateral industry projects most of them with international participation. On his initiative SCS started delivering projects to the German automotive industry. Some of the projects received prestigious awards such as the John P Davies Award of the ASME Turbo Expo, the Innovation Award of the Wall Street Journal Europe for new materials, the British Engineering Excellence Award and the Emerging Technologies Award from the Royal Society of Chemistry. Jörg published over 75 scientific articles, conference papers and patents mostly on luminescence sensing. Two of his papers received Best Paper awards at the ASME Turbo Expo in 2008 and 2012 respectively. More recently Jörg has received Recognized Teacher status from Cranfield University, UK, due to his work with students from BSc to PhD levels. He was voted Business Personality of the Year 2019 in the London Borough of Barking and Dagenham.
Jrg has worked in the area of phosphor thermometry for more than 20 years. He has set-up one of the first detection thermographic phosphor systems in the UK during his PhD at Imperial College and experimented with different material compositions and coating technologies before implementing those successfully on a Rolls-Royce jet engine for on-line measurements.
Sunday, June 21, 2020
8:00 am – 6:30 pm
This interactive workshop introduces in 1 day carefully selected essential material on gas turbine aerothermodynamics and performance calculations. Performance of both industrial and aircraft gas turbines will be covered. The pedagogical treatment with illustrative examples, flavored with practical considerations, will make the workshop comprehensible, interesting, and useful to both early career and experienced engineers. After completing the course, the participants will have the knowledge to propel themselves in studying other gas turbine and turbomachinery topics.
Part 1. Introduction
This interactive one-day workshop introduces carefully selected essential material on gas turbine
aerothermodynamics and performance calculations. Performance of both industrial and aircraft gas turbines is covered. The pedagogical treatment with illustrative examples, flavored with practical considerations, will make the workshop comprehensible, interesting, and useful to both early career and experienced engineers. After completing the course, the participants will have the knowledge to propel themselves in studying other gas turbine and turbomachinery topics.
Part 2. Principle of thrust generation and key efficiencies
Thrust equation derivation from momentum changes and pressure forces accounting; propulsive, thermal, core, transmission, and overall efficiencies; SFC to overall efficiency relationship; calculated propulsive efficiencies of propeller, transport and military turbofans, and supersonic cruise vehicles. Practical considerations in selecting bypass ratio.
Part 3. Essential aerothermodynamics applied to gas turbine engines
Review of thermodynamic concepts including enthalpy, entropy, and variable specific heats toward understanding cycle analysis. Illustrative examples on cycle analyses of both aircraft and industrial engines. Use of thermodynamic tables and turbine cooling flow accounting. Compressible flow review including conservation equations, non-dimensional parameters including total to static relationships, mass flow function and impulse function. Concept of choking. Nozzle and diffuser analysis with illustrative examples in spreadsheet format including C/D nozzle.
Part 4. Non-dimensional gas turbine and turbomachinery parameters
Advantage of generalized presentations. Maps used in aircraft and industrial engine models.
Part 5. Basics of turbomachinery aero design
Energy transfer in a generalized turbomachine; Euler equation; illustrative example. Compressor stage velocity diagram showing the benefits from variable IGV and stators; conversion of velocity diagram parameters into thermodynamic parameters; radial equilibrium equation and its use in blading design; work coefficient, pressure coefficient, isentropic efficiency, polytropic efficiency, and degree of reaction; stage characteristics and development of overall map; illustrative examples of stage design; variable IGV/stators in constant speed industrial compressor; tip clearance effects; operability analysis; and stall margin audit. Turbine stage velocity diagram analysis; work coefficient, pressure coefficient, isentropic efficiency, polytropic efficiency, and degree of reaction; Smith’s turbine efficiency correlation and its adjustments for tip clearances and cooling flows; chargeable and non-chargeable cooling flows; illustrative examples including one showing blade twist in a free vortex design; overall turbine maps.
Part 6. Overview of Combustor Characteristics
Multidisciplinary design requirements; flow path through aviation and industrial combustors; emission reduction with premixing; pressure loss; combustion efficiency; stability, and pattern factor
Part 7. Component Matching and Integrated System Performance
Requirement to satisfy conservation laws; Design point & off-design calculations; compressor/turbine matching; illustrative examples of turbojet and turbofan in a spreadsheet format showing key iterations
Part 8. Multivariable solver
Newton’s 1-D method; multidimensional Newton-Raphson iteration; application to a mixed flow turbofan; model/data matching
Part 9. Performance enhancement of subsonic turbofans
Turbofan cycle analysis methodology; high bypass ratio benefits; separate exhaust and mixed flow turbofans; on-line control optimization; ejector/engine/nacelle integration for high installed thrust
Part 10. Hybrid cycles used for power generation
Flowpath schematics and cycle performance (SFC & Specific Power) of combined cycle, cycles with steam ingestion, aero-derivatives with regeneration and intercooling, cycles with reheat
Early career engineers, students, experienced engineers interested in a refresher course, engineers with different expertise interested in a basic course in gas turbine performance.
Items to bring to this workshop: Laptop to review course material in the provided flash drive and to exercise the illustrative problems in excel spreadsheets
Earn 8.5 Professional Development Hours (PDH’s) and receive a certificate of completion!
Syed Khalid received the MSME degree from Purdue University and the Master of Engineering (Aerospace) degree from North Carolina State University. He has extensive experience in performance, controls, installation aerodynamics, and systems integration at Pratt & Whitney, GE Aviation, Lockheed Martin, and Rolls-Royce. He currently works at NASA, Kennedy Space Center. He has 21 issued patents with the last 6 for inventions at Rolls-Royce with the most recent one issued in August 2019. He has authored 16 technical papers and made numerous oral presentations. He has received numerous industry and professional society awards. He is an elected member of Phi Kappa Phi.
A comprehensive overview covering analytical, experimental, and practical aspects of the available gas turbine power augmentation technologies including a systematic approach of selecting a suitable power augmentation technology for a given application is provided. Importance of CFD analysis in case of specific technology is included. Case studies of actual implementation of discussed power augmentation technologies and lessons learned from these applications are included in the course. A significance of techno-economic evaluation and weather data analysis while selecting a suitable augmentation technology is discussed using a practical case.
Engineers with EPC (Engineering, Procurement & Constructions) companies involved in power generation projects, power generation project developers, combined heat & power project developers, gas turbine users, gas turbine operators, consultants involved in gas turbine-based power generation projects, and young engineers looking for careers in gas turbine-based power generation and related technologies.
Dr. Rakesh Bhargava
Dr. Bhargava is Founder & President of Innovative Turbomachinery Technologies Corp. His expertise includes applications of gas turbines and other rotating and reciprocating machines and packaged process equipment used in the off-shore, refinery, power generation, chemical, and pipeline industries. His more than 35 years of experience encompasses inspection and design reviews of process machinery and packaged equipment, evaluation and analysis of gas turbine power augmentation technologies, field problems resolution, failure analysis, inspection of turbomachinery component repairs, technical expertise in commercial disputes involving rotating machines and the global energy market analysis. He has given numerous invited lectures on gas turbine technologies and energy market around the world and provides customized training courses on rotating machinery and related topics. He is an active member of API Committee on Standards on Mechanical Equipment and has participated in upgrades of number of API specifications. He is a Fellow and Associate Fellow of ASME and AIAA, respectively and is past Chair of the ASME/IGTI Industrial & Cogeneration Committee and Oil & Gas Applications Committee. He is Associate Editor of the ASME Journal of Engineering for Gas Turbines and Power.
Dr. Mustapha Chaker
Dr. Chaker is a leading authority in the area of gas turbine power augmentation having done pioneering work on the inlet fogging while being director of R&D at Mee Industries, one of the leading suppliers of power augmentation systems. He has conducted extensive analytical and experimental studies utilizing a wind tunnel and state of the art laser measurement system to evaluate the behavior of cooling systems. He has been also working on the thermodynamic modeling of gas turbines and the use of CFD methods for fogging and wet compression system design and optimization. In addition, he has over 25 years of experience in multidisciplinary skills including gas turbine power generation and mechanical drive, compression systems (centrifugal, axial, integrally geared, reciprocating, steam turbine…) and LNG application. He is currently working as Principal Turbomachinery engineer at McDermott. He is past chair of the Industrial and Cogeneration Committee. Dr Chaker has a Ph.D. in Engineering Sciences from the University of Nice – Sophia Antipolis in France. He is a fellow of the American Society of Mechanical Engineering.
Sunday, June 21, 2020
8:00 am – 12:00 pm
Learn how simulations can be used to guide the entire design for additive manufacturing process from lightweighting (topology optimization) to orientation and support generation, gaining valuable insight into the process itself. Predict and prevent distortion, residual stresses, and blade crashes. Determine optimal process parameters and go further by exploring materials and microstructure.
Engineers, leaders, engineering students with fundamental knowledge of mechanical or aerospace engineering. Professionals interested in “LightWeighting” through techniques like topology optimization. Professionals interested in “Metal” additive manufacturing.
Earn 4 Professional Development Hours (PDH’s) and receive a certificate of completion!
Jeff Bronson is lead additive manufacturing expert at ANSYS. He has worked at aircraft manufacturing OEMS before joining ANSYS where he supported various design and analysis aspects of modern and next generation jet engines. Jeff has extensive knowledge of metal additive manufacturing workflow from design to print to microstructure analysis and has been acting as advisor to jet engine, gas turbine OEMs and other organizations in the turbomachinery field.
Operating in very hostile environments, turbochargers are subjected to corrosive, high-velocity exhaust gases exceeding 1000°C, as well as significant tensile, vibrational and bending loads. In this workshop, we will explore the basics of systematic materials selection methodology and how to apply those techniques to ensure the mechanical and sustainability of the turbine blades.
Aerospace/Mechanical engineers, university professors, and PhD students.
Items to bring to this workshop: laptop
laes Fredriksson has 20 years’ experience teaching materials-related subjects to undergraduate and post graduate students in Sweden, Canada, Belgium, and the U.S.A, mainly in mechanical engineering. After gaining an M.Sc. in Engineering Physics and Ph.D. in Theoretical Physics, he worked in both theoretical and experimental research on polymers, metals, and biomaterials. He has a passion for teaching and won a grant as part of Sweden’s Excellence in Teaching Programme to enable him to teach in the U.S.A. and facilitate the cross-pollination of pedagogical approaches. Claes is an Associate Professor of Materials Science and works with academics across the world, collaborating on producing teaching resources and running CES EduPack training.
Luca Masi is a Principal Development Manager at ANSYS Granta, and Aerospace Engineer with R&D experience in multi-objective optimization and bio-inspired computational techniques for automatic design of interplanetary space trajectories (University of Strathclyde, software development for CNES and Thales Alenia Space), as well as spacecraft propulsion (Alta-Space, Universita’ di Pisa). For the past five years, Luca has run several materials selection workshops and lectures at leading US universities (Georgia Tech, Arizona State, MIT, University of Michigan, Stanford) and has published technical papers and book chapters for AIAA, IEEE, Acta Astronautica, and others.
Tatiana V. Vakhitova
Tatiana V. Vakhitova holds a PhD Degree from University of Cambridge Engineering Department, Centre for Sustainable Development. At ANSYS Granta she leads development of teaching resources in an area of Sustainable Development and Materials, working closely with Prof. Mike Ashby. Tatiana is a principal development manager of the University Relations Team. She is also responsible for coordinating our activities in an EU project on Sustainable Critical Materials (SUSCRITMAT). Tatiana has several publications on topics ranging from social and environmental impact assessment, CSR, circular economy to sustainability teaching. She is an experienced educator and facilitator, has delivered various trainings, workshops and lectures at universities and international events around the world.