System Simulation: the Key to Unlocking Hydrogen Engineering
Hydrogen is a key enabler of the energy transition, but scaling it up presents several challenges: efficiency, safety, costs, and system integration. We’ve seen how the digitalization of engineering process can help solve these challenges in this article.
Today we’re diving deeper. Let’s look at System Simulation, a specific digital engineering tool, and why it plays a crucial role in overcoming the technical hurdles in the H2 industry, allowing engineers to model, analyze, and optimize thei products and processes before physical implementation.
What is System Simulation: Key Features
System simulation is a virtual engineering approach that allows engineers to create digital models of complex multi-domain physical systems and predict their behavior under real-world conditions. To understand why it supports Hydrogen-related engineering challenges, we need to provide some information on its Features and Capabilities.
✅ Multi-Physics Capabilities
System Simulation combines the simulation of gas, liquids, thermal behavior, electrics, mechanics, controls, as well as the power exchanges within a single simulation model. A system that combines several physics with a control logic is often refferred to as a “mechatronic system”, and System Simulation is the perfect mechatronic simulation tool.
Image 1: Hydrogen Systems are multi-physical controlled systems – i.e. mechatronic systems.
✅ Model-Based Approach: System simulation tools provide ready-to-use modeling elements, that the user can assemble to build the sketch of their system. The modeling elements are validated, fully parametric and cover all physical domains. With a simple drag-and-drop procedure you can build a digital twin of your system, parametrize it, and perform simulations in a few minutes.
✅ Transient Simulations: Analyze dynamic performance of your product across different scenarios, such as varying pressure, temperature, and load conditions.
✅ Control System Interaction supports the control development by easily coupling high-fidelity physical models with control logics, in MiL (Model-in-the-Loop), SiL (Software-in-the-Loop) and HiL (Hardware-in-the-Loop) environments.
✅ Scalable Approach – from 1D to 3D models, system simulation software offers models that go into different levels of engineering analysis depth: from functional to detailed geometry-based models, from quasi-static to dynamic models – adapted to the specific simulations needs
What engineering questions do we typically answer through System Simulation?
- What is the best architecture for my system?
- What’s the best sizing for each component?
- What is the best control strategy for my subsystems?
- How subsystems interact together?
- How will the system behave considering multiple scenarios: actuation of a component, severe operating conditions, failure…
- Is there any risk of over pressures or temperature impacting safety?
- How much hydrogen can the system produce?
- How fast can I refuel a hydrogen tank?
- How much hydrogen or energy will the system consume?
That’s a lot of engineering pains customers face in their daily work that can be solved with System Simulation.
Where Does System Simulation Apply in the Hydrogen Industry?
System Simulation technically covers everything from first pilots to scalable & standardized solutions including the generation of green electricity and grid connection, as well as hydrogen production, storage, transportation, and utilization in mobility or stationary applications.
Lets look into some specific applications.
1. Hydrogen Production: Improving Efficiency and Performance
At the center of Green Hydrogen production, we find Electrolyzers, but optimizing their performance is complex. System simulation enables:
✅ Modeling the behavior of different electrolyzer types
✅ Analyzing key parameters such as temperature, hydrogen production power consumption.
✅ Optimizing thermal management to improve efficiency and extend component lifespan.
Want to see an example of an Electrolyzer system simulation model and what insight it can provide? Check out this article where we use Simcenter Amesim, a leading system simulation software by Siemens to model and simulate a PEM Electrolizer here.
Moving on to a Full Hydrogen Production Plant, that integrates renewable Energy Sources with the Electrolyzer and the Storage Systems, system simulation allows engineers to predict performance, hydrogen production levels, energy generation and losses throughout the process, under variable production scenarios.
Check out our article on Simcenter Amesim for Production Plant analysis here.
2. Components for Hydrogen Management: Precision under Pressure
For operations of hydrogen production, transportation and usage to go smoothly and safely, the fluid networks and components, like pressure regulators, injectors and valves, need to be precise and efficient. Simcenter Amesim is the go-to simulation tool to:
- model geometries of components and perform dynamic analysis under various working conditions.
- simulate real gas behavior
- study component integration within the system
- flow rate and temperature respond to pressure variations
Read more in this article
3. Storage and Transportation: Ensuring Safety and Efficiency
Hydrogen storage and transportation pose significant engineering challenges, requiring high-pressure tanks, cryogenic solutions, or solid-state storage materials. With system simulation, engineers can:
✅ Analyze the behavior of tanks and valves under different operating conditions.
✅ Optimize compression and liquefaction processes to reduce energy losses.
✅ Simulate hydrogen behavior in pipelines and distribution systems, ensuring safety and reliability.
Read more on this topic here.
4. Refueling Stations: Speed and Safety
System simulation provides the capabilities needed to design, analyze, and optimize hydrogen refueling stations (HRS). In particular, it allows to:
- simulate and analyze hydrogen flow, pressure, and temperature in each subsystem, modeling real gases and high pressure
- accurately size compressors, tanks, pipes, and valves to match operational requirements
- work on thermal management to design efficient cooling systems and regulate hydrogen temperatures during compression.
- Improve Control Strategies and work on Virtual Commissioning
Read more on this topic here.
5. Hydrogen Utilization: Optimizing Fuel Cells and Industrial Applications
Fuel cells play a key role in hydrogen-powered transportation and industrial applications, yet their efficiency and durability remain critical concerns.
System simulation allows engineers to:
✅ Model the internal dynamics of fuel cells, optimizing thermal management, membrane humidity, assessing energy production, H2 and O2 consumption and concentration and H2O production.
✅ Simulate fuel cell integration in vehicles, trains, ships, and industrial plants, improving overall system performance.
Conclusions
By leveraging system simulation, engineers and manufacturers can:
🔹 Reduce development time and accelerate time-to-market.
🔹 Minimize prototyping costs through virtual validation.
🔹 Ensure safety and regulatory compliance in hydrogen applications.
🔹 Simulate complex scenarios and test innovative solutions.
With System simulation tools, like Simcenter Amesim, companies gain valuable insights to make data-driven decisions, reducing risks and maximizing hydrogen system performance.
Want to Learn more?
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