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Digital Engineering for thermal, process and energy systems

Step into the future of engineering with our tools and services for system simulation, thermodynamics, control engineering and optimization.

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We enable companies to understand and improve complex technical systems

Engineering Services

Modeling, simulation studies and consulting services to digitize engineering and improve technical systems

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Software

Sophisticated model libraries, high-performance algorithms, cloud simulation platform and individual software solutions

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Training

Master classes for thermal systems simulation with our library TIL and basics of physical modeling with Modelica

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What's new at TLK Energy?

October 28, 2024

New Blogarticle about PEM Electrolysis

PEM electrolysis enables efficient hydrogen production. In his article "PEM electrolysis: basics and simulation", Yann Pellny, lead developer of the PSL (Process Systems Library), explains how this technology works, its advantages over other electrolysis processes and the technical challenges. He also shows a simulation models for PEM electrolysis. Simulation models are very helpful to understand and improve complex processes.

October 25, 2024

PSL Update: Alkaline Electrolyzer Model and Performance Improvements

The latest PSL (Process Systems Library) update focuses on improved numerical stability and faster simulations. We’ve added a new example model of an alkaline electrolyzer (AEL) to support more simulations for carbon capture and electrolysis applications. This version also introduces enhanced models for pressure drop, heat transfer, and absorption, allowing for more comprehensive process analysis.
PSL is highly customizable, based on open standards (Modelica and FMI) and can be integrated with other software. More about PSL.

Our clients

"The web simulator is great work! That's how I wanted it to be. After a few teething problems, it all worked out very well."

Stephan Christoph

Crespel & Deiters GmbH & Co. KG

"In our research projects, we perform dynamic simulations and optimizations. We work with different operating systems (e.g. Windows, Linux) and often have very specific requirements for the software interfaces. Here, the communication with TLK Energy was always very good: software interfaces were adapted for us in a short time and questions were answered competently."

Mirko Engelpracht

RWTH Aachen University

"From formulating the task in the proposal phase to the completion of the project, we felt very well looked after. Technical depth was achieved very early on in the close-knit status meetings, which brought interesting discussions and knowledge gains for us. It's wonderful that projects like these exist."

Dr.-Ing. Rüdiger Noack

WAGNER Group GmbH

"The collaboration with TLK Energy was very straightforward and always solution-oriented. Together we have created a web-based ventilation simulator that helps us to communicate the benefits of our Airflow products better.“

Simon Morherr

AIRFLOW Lufttechnik GmbH

Web resources for engineers

Interactive ph-diagram

For refrigeration systems, the log-p-h diagram is probably the most widely used graphical visualization. We use it every day in simulation projects to grasp the state of a system at one sight. For our web-based simulation apps we have developed an interactive log-p-h diagram with JavaScript. You can use it for free and create a cycle yourself.

Open ph-diagram

Interactive hx-diagram

Moisture is important for ventilation and air conditioning applications. Thermodynamicstates and processes with moist air can be graphically represented using the Mollier h-x-diagram. Our powerful interactive version of the hx-diagram helps beginners to understand the basics of hx-diagrams and professionals to speed up common calculations.

Open hx-diagram

McCabe-Thiele diagram

The McCabe-Thiele method uses a phase diagram to determine the number of theoretical bottoms in a column required to achieve the desired degree of separation. The method is a very useful tool for understanding the distillation of a binary mixture.

Open McCabe-Thiele diagram

Latest blog posts

System Simulation

Time Constant - Understanding and simulating Dynamic Systems

Ina Machleid

Dec 6, 2024

How can a constant describe a complex system? Despite the diversity and complexity of many systems - whether in nature, technology or business - there is one particular constant that can do just that: the time constant. It allows dynamic behaviour to be predicted precisely.

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Research

PEM Electrolysis: Basics and Simulation

Yann Pellny

Sep 27, 2024

PEM electrolysis is a technology for producing hydrogen. The article explains how it works, its advantages over other electrolysis technologies, technical challenges and how system simulation can be used to optimize the process and the plant.

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Water molecules as a symbol for Adsorption

Research

Simulation of Adsorption Processes – Modeling Basics

Helena Vorspohl

Feb 22, 2024

Adsorption processes are well-established methods for gas separation, gaining increasing importance for direct air capture of CO2 and air drying in battery production. These processes can be dynamically simulated with TIL Adsorption. Here, we present the basics of the modeling.

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