The modelling of hydrogen isotope transfer phenomena, in particular of tritium, is a historic milestone in nuclear fusion technology.

Tritium is a reactant in the fusion reaction and therefore of great interest. It presents two major problems in operation, however: it is a radioactive isotope and it is highly permeable. As a result, it is especially important to monitor and control it.

Now, a hydrogen isotope transport simulation tool, called TRITIUM, has been developed for this purpose. The result of a collaborative effort between Empresarios Agrupados Internacional (EAI)/CIEMAT and directed and financed by Fusion For Energy (F4E, European Domestic Agency for the Development of Fusion and ITER), TRITIUM consists of a set of libraries created using the EcosimPro simulation platform developed by Empresarios Agrupados.

For more info at TRITIUM tool article

From September 10^th to 15th, the 15th International Symposium on Fusion Nuclear Technology took place in Las Palmas de Gran Canaria. The ISFNT is one of the main international events for the nuclear fusion field. The symposium focuses on both near-term and long-term fusion devices and reactor technologies, with special attention to science, engineering, experiments, facilities, modelling, analysis, design, and safety.

At this symposium, a poster was presented showcasing the capability of EcosimPro and the TRITIUM toolkit for modelling tritium transport, specifically  a Water-Cooled Lithium Lead Test Blanket Module (WCLL TBM). TRITIUM toolkit contains first-principles models of the various terms involved in tritium transport such as: generation, advection, chemical reactions, permeation, diffusion, trapping, recombination and dissociation. Together with the TBM concept, the most relevant ancillary systems are considered as well.  Aiming at having a global perspective of tritium behaviour all over the TBS at any time, the following set of significant variables are computed: tritium inventory, permeation rates and recovery.

For info at TRITIUM tool

The European Space Agency (ESA) and Empresarios Agrupados Internacional (EAI) organised the 9th Workshop European Space Propulsion Simulation (ESPSS) Workshop at ESA-ESTEC Noordwijk (Holland) during days 19-21 September. More than 45 people from the European space propulsion industry and ESA attended presentations on new enhancements to EcosimPro/ESPSS tool that will help design new missions. New phenomena such as multi phase flow modelling, electric propulsion, hydrogen combustion modelling, water propulsion, finite rate chemistry modelling, etc. The last day was dedicated to an advanced ESPSS course showing examples of water hammer and priming modelling, multi-fluid combustion, a complete Rocket Cycle ,etc.

More info at ESPSS tool

New EcosimPro/ELECTRIC tool that fills a gap to model all types of electrical and electronic systems. Used in the aerospace world, energy, etc. sectors. There has been a digitalisation across industry that means that any aircraft, car, machine, electrical grid, renewable energy, etc. has more and more electrical systems than it did a few years ago. With this tool you can simulate from circuits to electrical machines, batteries, photovoltaic panels, etc. You can get more information from ECOSIMPRO/ELECTRICAL tool

Some of the papers presented at the 8th International Conference on Space Propulsion Conference SP2022 organised by ESA in Estoril in 2022 (9^th-12^th May) are now available at the  Papers > Space section in this website.

These articles show real projects carried out by companies such as DLR, Thales Alenia, OHB, Ariane Group, GomSpace, Airbus Defence and Space, ESA, etc. in space propulsion projects.

Today more than 50 companies in Europe use EcosimPro-ESPSS for space propulsion system simulation and it has become the reference tool in Europe for this type of studies. Just to mention a few examples, some of the projects are listed in the following paragraphs.

• Thales Alenia UK has used EcosimPro for the Gateway project for the calibration of the Bipropellant Transfer Subsystem (BTS) . Gateway will be an orbiting lunar outpost supporting the long-term human return to the surface of the Moon and providing a staging point for deep space exploration. It is a critical component to NASA’s Artemis program.
• Ariane Group has worked in a project related to the James Webb Space Telescope for avoiding a random uncontrolled re-entry on Earth or a collision with the valuable telescope, they have been working to perform an “extra-push sequence”. To validate the use of ESC-D and HM7B engines, a model in EcosimPro and Cathare tools was developed to predict the needed thrust domain avoiding the risks of random re-entry or collision.
• GomSpace from Sweden has presented a paper about an innovative miniaturized cold gas propulsion module based on Micro-Electro-Mechanical Systems (MEMS) technology is currently being developed at GomSpace Sweden. The modelling of the propulsion system as a transient model in EcosimPro is performed to verify the fluidic conditions inside the system incling thermal and control systems.
• DLR Bremen presented a paper about FROST, that it is a mission dedicated to fly on the DLR CompactSat Bus. In order to analyze the LN2 chill-down and transfer behavior in micro gravity within the CTS and ETS, a 1D EcosimPro-ESPSS model was developed. This way, quick iterations of design parameters like pipe lengths, storage tank pressure, degree of subcooling, different valves and their influence on chill-down performance were evaluated.
• Universities of Munchen and Darmstadt in Germany presented a work about the application of Water Electrolysis Propulsion to a 3U CubeSat as a de-orbiting kit with attitude control. Liquid water is decomposed into gaseous hydrogen and oxygen by an electrolysis unit supplied by solar power. The simulation was done in ESPSS and it makes use of 1D gas dynamics simulation as well as chemical equilibrium assumption for combustion.
• OHB Bremen presented a paper using EcosimPro-ESPSS that it models the transient phenomena experienced in bi-propellant propulsion systems at multiple scales for ExoMars. This study is used to define OHB propulsion guidelines for future missions (i.e. moon landers), in which more powerful propulsion systems will play a main role. Priming and water hammer cases were simulated on ESPSS and validated against experimental data.

These are just a few examples of the more than 20 papers of the Conference that used EcosimPro-ESPSS. We invite you to read these papers from our website.

If you need more info about EcosimPro-ESPSS please contact info@ecosimpro.com.

Empresarios Agrupados Internacional (Madrid, Spain) will be present at ASME TURBO 2022 (booth #214) in Rotterdam (The Netherlands) from June 13 to 17 with its PROOSIS simulation tool for modeling gas turbines. Today PROOSIS is used by world-class companies (eg Safran, Airbus, etc.) in the areas of design and optimization aeronautical propulsion systems. PROOSIS provides acausal-causal modelling language, performance maps handling, multipoint design with constraints tool, export of models using SAE standards, etc. Being a multidisciplinary simulation tool, PROOSIS is being used to study any new hydrogen-based engine configuration, electric propulsion, cryogenic lines, etc. that will allow the design of less polluting engines.

The European Space Agency (ESA) and Empresarios Agrupados Internacional are organizing a new ESPSS (European Space Propulsion System Simulation) User Workshop in Estoril on May 12th, within the European Space Propulsion Congress. The latest advances in advanced space propulsion system simulation for rockets and satellites with EcosimPro/ESPSS will be presented. It will be a forum to share experiences and propose new capabilities. We encourage you to participate either in person or via Teams (free of charge).

Madrid (Spain). Empresarios Agrupados Internacional S.A. (EAI) participates in the development of the ONEIRE – OPTIMUM NEXT GENERATION AIRCRAFT & INTEGRATED REAR END project whose objective is to investigate the first design phases of the new generation of low and zero emission aircraft powered by H2 in its 4 basic pillars: product, manufacturing and assembly systems, digitalisation and design tools and advanced exploration of “Zero Emission” configurations and associated technologies. The leader of the Consortium is Airbus, EAI participates as technological partner.

EAI will undertake simulation studies of the use of hydrogen as a fuel in the aircraft’s APU designs. It will rely on its PROOSIS-ASYST aeronautical simulation toolkits to perform complex experiments to optimise the performance of these new type of low-polluting engines.

This project has been subsidised by the CDTI with file number PTAG-20211008 through the call for 2021 of the procedure for granting aid for Strategic Sectorial Business Innovation Initiatives (“Aeronautical Technology Programme”), within the framework of the Recovery, Transformation and Resilience Plan (financed by Next Generation EU funds, including the Recovery and Resilience Mechanism) and the State Programme for Business Leadership in R&D&I, of the State Plan for Scientific and Technical Research and Innovation 2017-2020.

Madrid (Spain). Empresarios Agrupados Internacional (EAI) is releasing a new version of the simulation tools EcosimPro and PROOSIS 2022 6.4.0. This new version includes many improvements in different areas for the modelling and simulation of systems based on algebraic-differential equations.
EcosimPro/PROOSIS are tools used by leading customers such as the European Space Agency, Airbus, Safran, ITER, CERN, etc. to model complex systems for propulsion, cryogenics, HVAC, power systems, turbomachinery, rockets, solar thermal plants, nuclear power plants, etc.
EcosimPro was born in the early 90s in a project with the European Space Agency for the design of environmental control system experiments on manned spacecraft (ECLSS) and PROOSIS was born in the European VIVACE project in 2007 for the creation of an aero engine performance simulation tool. Since then, many users have benefited from these powerful tools to design a multitude of systems for the International Space Station, satellites, aircraft engines, power plants, etc.
The new version includes improvements such as:

• A new connection to Git to perform configuration control of the modelling libraries that facilitates teamwork. The user can now choose between using SVN or Git.
• New capabilities in the Monitor:
  • Connect to Python and Javascript to draw any kind of 1D, 2D and 3D graph as a widget. With this improvement the user has an unlimited ability to graph simulation results.
  • New widget to display TIME in different formats.
  • New capabilities in plots to show maximum, minimum and average.
  • Grouping of variables in the simulation Watch.
• New internal variables to trace the computation time of a Jacobian, a call to the residue function, integration step size, etc.
• New graphical tools to transform simulation schematics using new types of replaceable components (Find-and-replace).
• New capabilities for exporting models as web services. Now remote users can make simulations through a browser.
• Implemented the ability to export models using the FMI Model-Exchange standard and improved the version of FMI for co-simulation.
• New tool to export models for use from Python.
• Save and restore simulation states including discrete events.
• New graphical editors for 1D, 2D and 3D tables.
• Partition settings are now defined also at library level.

For more information please contact info@ecosimpro.com

We are working on the new version of our products EcosimPro-PROOSIS 6.4 2022 which is scheduled for release on 1 January 2022.

This new version of our simulation tools will incorporate new capabilities that will make EcosimPro-PROOSIS a state-of-the-art product in 0D/1D simulation worldwide.

Some of the new capabilities are:

• Better and more robust solvers.
• Improved connection using FMI co-simulation and FMI Model Exchange.
• Integrated tool to connect with GIT and SVN configuration tools.
• Timing analysers calculating Jacobians.
• Easy export of models to web pages using web services.
• Remote connection to models using a web service API.
• Direct connection from Python.
• More thread-safe C++ code generated.
• Improved export tool to Linux.
• Creation of 3D scenarios for visualisation during the simulation.
• Use of python for creating any type of plot in the Monitor.
• etc.

In case you already have an updated maintenance you will automatically receive the version as soon as it is released, otherwise please contact us.