Developing an effective capacity sizing and energy management model for integrated hybrid photovoltaic-hydrogen energy systems within grid-connected buildings

Atteya, Ayatte Ibrahim; Ali, Dallia; Hossain, Mamdud

doi:10.1049/icp.2022.1823

Cited by 2 publications

(4 citation statements)

References 11 publications

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“…Simulations were carried out using MATLAB/Simulink, integrating real data from June 2020, including solar irradiation and ambient temperature. Tables I and II show the parameters used to develop the models for the PEM electrolyzer, hydrogen storage, and PEM fuel cell system, which were inspired from [9]. Figure 6 represents the daily load power request, and Figures 7 and 8 illustrate the ambient temperature and PV power outputs.…”

Section: B Simulation Resultsmentioning

confidence: 99%

“…Gas equations of state, such as the ideal gas equation or the Van der Waals equation, are used to accurately simulate the behavior of the hydrogen inside the tank. The flow rate of the hydrogen is calculated at the operating pressure by: S ] ^_H `abc d `abc 7 S M M,MNK (9) where P is the gas pressure in pascals (Pa), m H2 is the mass quantity of hydrogen, R is the gas constant equal to 8.314 J/K•mol, T tank is the absolute temperature of the gas (K),V tank is the gas volume (m 3 ), and z is the compressibility factor [17,27]. The size of the hydrogen storage tank is determined by the amount of hydrogen consumed by the fuel cell.…”

Section: F Modeling Of the Hydrogen Storage Tankmentioning

confidence: 99%

“…The development of energy management and capacity sizing models for hybrid solar PV and hydrogen systems in grid-connected buildings represents a significant step forward. In [9], the obtained results showed that a 4.31 MW PV system combined with a 2.28 MW electrolyzer, a 500 KW fuel cell, and a 1.331 Kg hydrogen tank can supply most of the building's energy while reducing electricity imports from the grid equivalent to a reduction of 612,005.76 Kg CO 2 per year. When creating accurate models for hybrid renewable energy in grid-connected buildings, the solution lies in precise component dimensions and realistic system simulations.…”

Section: Introductionmentioning

confidence: 99%

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Modeling and Simulation of a Renewable Energy PV/PEM with Green Hydrogen Storage

Hidouri,

Marouani,

Cherif

2024

Eng. Technol. Appl. Sci. Res.

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The introduction of green hydrogen-based energy storage in association with renewable energy constitutes a promising and sustainable solution to the increase in energy demand while reducing greenhouse gas emissions. However, these hybrid systems face technical, economic, and logistic challenges that require a new transport and distribution architecture. The technical-economic study of these expensive installations requires good modeling and optimal sizing of the system components. This study presents a global model for hydrogen production and storage stations using photovoltaics (PV) and integrating Proton Exchange Membrane Fuel Cell (PEMFC) modules for electric vehicles. The simulations and sizing were based on the implementation of an effective mathematical model capable of accurately simulating the real dynamic behavior of the installation, the electrical and energy yields, the power consumed and produced, and finally the mass of hydrogen stored and/or consumed by the fuel cell. In this model, the hybrid system integrates PV solar panels with a maximum power of 1.2 MW, followed by a 1.0 MW Proton Exchange Membrane (PEM) electrolyzer, a high-pressure hydrogen storage tank, and a PEMFC to convert hydrogen into electricity. The simulation results showed that the energy generated by the PV panels can produce around 200 kg/day of green hydrogen by electrolysis, which makes it possible to power 100 electric cars per day with a range of 250 km for each.

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Section: B Simulation Resultsmentioning

confidence: 99%

Section: F Modeling Of the Hydrogen Storage Tankmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modeling and Simulation of a Renewable Energy PV/PEM with Green Hydrogen Storage

Hidouri,

Marouani,

Cherif

2024

Eng. Technol. Appl. Sci. Res.

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“…In contrast, the sized fuel cell system, in conjunction with the utility grid, operates in response to load demand requirements during the hours of deficiency in PV generation, therefore maintaining a successful energy balance between the integrated system components while ensuring an increased proportion of green energy supply. To evaluate the effectiveness of the developed model in quantifying the real-world hydrogen production levels by electrolysers when running back intermittent renewable energy sources while also identifying the real-world output power generation by fuel cells and their corresponding hydrogen consumption levels in response to variable load demand requirements, the developed model simulation results have been compared to those obtained from a generic model [23] in which the changes in electrochemical losses taking place inside the electrolysers and fuel cell stacks are not taken into consideration. For the purpose of comparison, the hourly operation of the integrated system components is simulated in both models using the same sized capacities listed in Table 3, together with the same PV system model included in Section 2.1.…”

Section: Resultsmentioning

confidence: 99%

Precise Dynamic Modelling of Real-World Hybrid Solar-Hydrogen Energy Systems for Grid-Connected Buildings

2023

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Hybrid renewable hydrogen energy systems could play a key role in delivering sustainable solutions for enabling the Net Zero ambition; however, the lack of exact computational modelling tools for sizing the integrated system components and simulating their real-world dynamic behaviour remains a key technical challenge against their widespread adoption. This paper addresses this challenge by developing a precise dynamic model that allows sizing the rated capacity of the hybrid system components and accurately simulating their real-world dynamic behaviour while considering effective energy management between the grid-integrated system components to ensure that the maximum possible proportion of energy demand is supplied from clean sources rather than the grid. The proposed hybrid system components involve a solar PV system, electrolyser, pressurised hydrogen storage tank and fuel cell. The developed hybrid system model incorporates a set of mathematical models for the individual system components. The developed precise dynamic model allows identifying the electrolyser’s real-world hydrogen production levels in response to the input intermittent solar energy production while also simulating the electrochemical behaviour of the fuel cell and precisely quantifying its real-world output power and hydrogen consumption in response to load demand variations. Using a university campus case study building in Scotland, the effectiveness of the developed model has been assessed by benchmarking comparison between its results versus those obtained from a generic model in which the electrochemical characteristics of the electrolyser and fuel cell systems were not taken into consideration. Results from this comparison have demonstrated the potential of the developed model in simulating the real-world dynamic operation of hybrid solar hydrogen energy systems for grid-connected buildings while sizing the exact capacity of system components, avoiding oversizing associated with underutilisation costs and inaccurate simulation.

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Developing an effective capacity sizing and energy management model for integrated hybrid photovoltaic-hydrogen energy systems within grid-connected buildings

Abstract: Developing an effective capacity sizing and energy management model for integrated hybrid photovoltaic-hydrogen energy systems within grid-connected buildings. In

Cited by 2 publications

References 11 publications

Modeling and Simulation of a Renewable Energy PV/PEM with Green Hydrogen Storage

Modeling and Simulation of a Renewable Energy PV/PEM with Green Hydrogen Storage

Precise Dynamic Modelling of Real-World Hybrid Solar-Hydrogen Energy Systems for Grid-Connected Buildings

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