Dynamic Simulation with Energy Systems Language

2007 ◽  
pp. 539-570
Keyword(s):  
Dynamic Simulation ◽  
Energy Systems

scholarly journals Dynamic Simulation and Thermoeconomic Analysis of a Hybrid Renewable System Based on PV and Fuel Cell Coupled with Hydrogen Storage

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7657
Author(s):  
Francesco Calise ◽  
Francesco Liberato Cappiello ◽  
Luca Cimmino ◽  
Massimo Dentice d’Accadia ◽  
Maria Vicidomini
Keyword(s):  
Hydrogen Storage ◽  
Dynamic Simulation ◽  
Energy Demand ◽  
Storage System ◽  
Energy Systems ◽  
Operating Conditions ◽  
Solid Oxide ◽  
Campi Flegrei ◽  
Future Market ◽  
Systems Research

The production of “green hydrogen” is currently one of the hottest topics in the field of renewable energy systems research. Hydrogen storage is also becoming more and more attractive as a flexible solution to mitigate the power fluctuations of solar energy systems. The most promising technology for electricity-to-hydrogen conversion, and vice versa, is the reversible solid-oxide cell (SOC). This device is still very expensive, but it exhibits excellent performance under dynamic operating conditions compared to the competing devices. This work presents the dynamic simulation of a prototypal renewable plant combining a 50 kW photovoltaic (PV) field with a 50 kW solid-oxide electrolyzer cell (SOEC) and a compressed hydrogen tank. The electricity is used to meet the energy demand of a dwelling located in the area of Campi Flegrei (Naples). The SOC efficiency is simulated by developing a mathematical model in MATLAB®. The model also calculates the cell operating temperature as a function of the input current. Once the optimal values of the operating parameters of the SOC are calculated, the model is integrated in the transient system simulation tool (TRNSYS) for dynamic analysis. Furthermore, this work presents a parametric analysis of the hydrogen storage system (HSS). The results of the energy and environmental analyses show that the proposed system can reach a primary energy saving by 70% and an amount of saved CO2 of 28 tons/year. Some possible future market scenarios are considered for the economic analysis. In the most realistic case, the optimal configuration shows a simple pay back lower than 10 years and a profit index of 46%.

Dynamic simulation in development of contemporary energy systems – oxy combustion case study

Energy ◽  
2019 ◽  
Vol 181 ◽  
pp. 964-973 ◽  
Author(s):  
Andrzej Sachajdak ◽  
Jari Lappalainen ◽  
Hannu Mikkonen
Keyword(s):  
Dynamic Simulation ◽  
Energy Systems

Dynamic Simulation of Energy System

2012 ◽  
Vol 622-623 ◽  
pp. 1017-1021 ◽  
Author(s):  
Mark Barrett ◽  
Catalina Spataru
Keyword(s):  
Dynamic Simulation ◽  
Energy Systems ◽  
Energy System ◽  
Energy Resources ◽  
Entire System ◽  
Energy Services ◽  
And Performance

This paper investigates how society engenders demands for energy services that vary with time and climate, and how renewable and other energy resources can be deployed to meet these demands. Because the whole people-energy system is modeled, there is little detail about any component, instead an overall picture of how the entire system works is presented in this paper. It became apparent that the design and performance of dwelling energy systems, and to some extent the behavior of people, cannot be considered in isolation from the whole system. In order to get a picture of how the entire system works, the greater the diversity better overview can be obtained. But, from a practical perspective it is difficult to simultaneously model in detail a large number of people-dwelling combinations, alongside all other demands and electricity and other supply.

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