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View article: Sizing optimization of hybrid hydrogen energy storage systems: A metamodel-based approach
Sizing optimization of hybrid hydrogen energy storage systems: A metamodel-based approach Open
Hybrid energy storage systems (HESS), consisting of a battery, hydrogen storage, electrolyzer and fuel cell, have received increasing attention from the scientific community in recent years as they can help increase the use of renewable en…
View article: Analysis of Power-to-gas-to-X systems with metal hydride storage based on coupled electrochemical and thermodynamic simulation
Analysis of Power-to-gas-to-X systems with metal hydride storage based on coupled electrochemical and thermodynamic simulation Open
Power-to-gas-to-X systems consisting of photovoltaic cells, proton-exchange membrane electrolysis, hydrogen storage based on metal hydrides, proton-exchange membrane fuel cells and buffer batteries could be used to meet heat and electricit…
View article: A new bottom-up method for classifying a building portfolio by building type, self-sufficiency rate, and access to local grid infrastructure for storage demand analysis
A new bottom-up method for classifying a building portfolio by building type, self-sufficiency rate, and access to local grid infrastructure for storage demand analysis Open
A building's energy storage demand depends on a variety of factors related to the specific local conditions such as building type, self-sufficiency-rate, and grid connection. Here, a newly developed bottom-up procedure is presented for cla…
View article: Thermodynamical and electrochemical model of a PEM electrolyzer plant in the megawatt range with a literature analysis of the fitting parameters
Thermodynamical and electrochemical model of a PEM electrolyzer plant in the megawatt range with a literature analysis of the fitting parameters Open
In the coming years, the European Union plans to establish Proton Exchange Membrane (PEM) electrolyzers, each with a 100 MW capacity. However, the selection of their locations has not been systematically optimized to leverage potential ben…
View article: Stability of dynamic fluid transport simulations
Stability of dynamic fluid transport simulations Open
Pipeline transport is an efficient method for transporting fluids in energy supply and other technical applications. While natural gas is the classical example, the transport of hydrogen is becoming more and more important; both are transm…
View article: TransHyDE‐Sys: An Integrated Systemic Approach for Analyzing and Supporting the Transformation of Energy Systems and Hydrogen Infrastructure Development
TransHyDE‐Sys: An Integrated Systemic Approach for Analyzing and Supporting the Transformation of Energy Systems and Hydrogen Infrastructure Development Open
In addition to the long‐term goal of mitigating climate change, the current geopolitical upheavals heighten the urgency to transform Europe's energy system. This involves expanding renewable energies while managing intermittent electricity…
View article: Advanced mode analysis for crash simulation results
Advanced mode analysis for crash simulation results Open
Potential scatter of simulation results caused, for example, by buckling, is still a challenging issue for predictability. Principle component analysis (PCA) and correlation clustering are well-known mathematical methods for data analysis.…
View article: Contingency analysis for gas transport networks with hydrogen injection
Contingency analysis for gas transport networks with hydrogen injection Open
Novel methods for contingency analysis of gas transport networks are presented. They are motivated by the transition of our energy system where hydrogen plays a growing role. The novel methods are based on a specific method for topological…
View article: Statistical and Principal Component Analysis in the Design of Alkaline Methanol Fuel Cells
Statistical and Principal Component Analysis in the Design of Alkaline Methanol Fuel Cells Open
In this paper, the electrochemical alkaline methanol oxidation process, which is relevant for the design of efficient fuel cells, is considered. An algorithm for reconstructing the reaction constants for this process from the experimentall…
View article: AdvWarp: A Transformation Algorithm for Advanced Modeling of Gas Compressors and Drives
AdvWarp: A Transformation Algorithm for Advanced Modeling of Gas Compressors and Drives Open
Solving transport network problems can be complicated by non-linear effects. In the particular case of gas transport networks, the most complex non-linear elements are compressors and their drives. They are described by a system of equatio…
View article: Universal Translation Algorithm for Formulation of Transport Network Problems
Universal Translation Algorithm for Formulation of Transport Network Problems Open
The formulation of transport network problems is represented as a translation between two domain specific languages: from a network description language, used by network simulation community, to a problem description language, understood b…
View article: Parameter Identification in Cyclic Voltammetry of Alkaline Methanol Oxidation
Parameter Identification in Cyclic Voltammetry of Alkaline Methanol Oxidation Open
Alkaline methanol oxidation is an electrochemical process, perspective for the design of efficient high energy density fuel cells. The process involves a large number of elementary reactions, forming a complex reaction graph, and it is des…
View article: MYNTS: Multi-phYsics NeTwork Simulator
MYNTS: Multi-phYsics NeTwork Simulator Open
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View article: A Globally Convergent Method for Generalized Resistive Systems and its Application to Stationary Problems in Gas Transport Networks
A Globally Convergent Method for Generalized Resistive Systems and its Application to Stationary Problems in Gas Transport Networks Open
We consider generalized resistive systems, comprising linear Kirchhoff equations and non-linear element equations, depending on the flow through the element and on two adjacent nodal variables. The derivatives of the element equation shoul…