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The impacts of the transmission line length in an interconnected micro-grid on its performance and protection at different fault levels. (2024)
Journal Article
KHOSHKALAM, A. and ALI, D. 2024. The impacts of the transmission line length in an interconnected micro-grid on its performance and protection at different fault levels. Green technology, resilience, and sustainability [online], 4, article number 1. Available from: https://doi.org/10.1007/s44173-024-00016-y

Power systems, in recent years, have been experiencing a dynamic rise in the amount of power obtained from distributed renewable energy sources leading to the concept of microgrids to address the distributed power grid integration issues. Microgrids,... Read More about The impacts of the transmission line length in an interconnected micro-grid on its performance and protection at different fault levels..

A comprehensive review on the potential of green hydrogen in empowering the low-carbon economy: development status, ongoing trends and key challenges. (2023)
Journal Article
ATTEYA, A.I., ALI, D., HOSSAIN, M. and SELLAMI, N. 2023. A comprehensive review on the potential of green hydrogen in empowering the low-carbon economy: development status, ongoing trends and key challenges. Green energy and environmental technology [online], 2. Available from: https://doi.org/10.5772/geet.23

Green hydrogen is currently considered a key element for delivering free-carbon energy. This paper provides an extensive assessment of the potential of green hydrogen technology as a pathway to the low-carbon economy while highlighting the major tech... Read More about A comprehensive review on the potential of green hydrogen in empowering the low-carbon economy: development status, ongoing trends and key challenges..

Developing an adaptive protection scheme towards promoting the deployment of distributed renewable sources in modern distribution networks: operational simulation phase. (2023)
Conference Proceeding
ATTEYA, A.I., EL-ZONKOLY, A., ASHOUR, H.A. and ALI, D. 2023. Developing an adaptive protection scheme towards promoting the deployment of distributed renewable sources in modern distribution networks: operational simulation phase. In Proceedings of the 58th International universities power engineering conference (UPEC 2023), 30 August - 1 September 2023, Dublin, Ireland. Piscataway: IEEE [online], article number 10294344. Available from: https://doi.org/10.1109/UPEC57427.2023.10294344

The large-scale integration of renewables into the electricity grid as distributed generation sources for providing clean energy supply together with the recent introduction of the smart grid concept, have accelerated the need to modernize the existi... Read More about Developing an adaptive protection scheme towards promoting the deployment of distributed renewable sources in modern distribution networks: operational simulation phase..

The state of the art in hydrogen storage. (2023)
Journal Article
REYNOLDS, J., ALI, D. and NJUGUNA, J. 2023. The state of the art in hydrogen storage. Green energy and environmental technology [online], (accepted).

The global renewable energy mix is set to change even further with the increasing demand for hydrogen. The production levels are dramatically increasing, and it is becoming prevalent that the storage of hydrogen gas is much more complex than natural... Read More about The state of the art in hydrogen storage..

Precise dynamic modelling of real-world hybrid solar-hydrogen energy systems for grid-connected buildings. (2023)
Journal Article
ATTEYA, A.I., ALI, D. and SELLAMI, N. 2023. Precise dynamic modelling of real-world hybrid solar-hydrogen energy systems for grid-connected buildings. Energies [online], 16(14), article 5449. Available from: https://doi.org/10.3390/en16145449

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... Read More about Precise dynamic modelling of real-world hybrid solar-hydrogen energy systems for grid-connected buildings..

Investigating the potential of renewable-hydrogen energy storage systems (RHES) in enabling Scotland’s farming communities net-zero transition and sizing the proposed RHES system. (2023)
Journal Article
AL-ALI, H., ALI, D. and ATTEYA, A.I. 2023. Investigating the potential of renewable-hydrogen energy storage systems (RHES) in enabling Scotland’s farming communities net-zero transition and sizing the proposed RHES system. Green energy and environmental technology [online], 2, pages 1-32. Available from: https://doi.org/10.5772/geet.16

Renewable-hydrogen (H2) is a key component in Scotland's decarbonisation plans and its implementation in farming communities can support achieving net-zero goals. HydroGlen, a demonstrative renewable-powered farming community at Glensaugh, is used as... Read More about Investigating the potential of renewable-hydrogen energy storage systems (RHES) in enabling Scotland’s farming communities net-zero transition and sizing the proposed RHES system..

Modelling real-world renewable hydrogen energy systems for enabling Scotland zero-carbon ambition. (2023)
Presentation / Conference
ATTEYA, A.I. and ALI, D. 2023. Modelling real-world renewable hydrogen energy systems for enabling Scotland zero-carbon ambition. Presented at the 2023 All-energy and dcarbonise conference, 10-11 May 2023, Glasgow, UK.

Hydrogen is described as one of the most indicative scenarios for meeting Scotland Net-Zero carbon ambition set out for 2045. According to the 2021 Scottish Government’s hydrogen policy statement, the target is to invest 5 GW of renewable and low-car... Read More about Modelling real-world renewable hydrogen energy systems for enabling Scotland zero-carbon ambition..

Developing an effective capacity sizing and energy management model for integrated hybrid photovoltaic-hydrogen energy systems within grid-connected buildings. (2022)
Conference Proceeding
ATTEYA, A.I., ALI, D. and HOSSAIN, M. 2022. Developing an effective capacity sizing and energy management model for integrated hybrid photovoltaic-hydrogen energy systems within grid-connected buildings. In Proceedings of the 11th International conference on Renewable power generation (RPG 2022): meeting net zero carbon, 22-23 September 2022, London, UK: [virtual event]. New York: IET [online], pages 204-212. Available from: https://doi.org/10.1049/icp.2022.1823

The ongoing energy transition has accelerated renewables integration within many sectors requiring addressment of their intermittency challenges. Implementing hydrogen energy storage with renewables is a solution; however, Renewable-Hydrogen hybrid s... Read More about Developing an effective capacity sizing and energy management model for integrated hybrid photovoltaic-hydrogen energy systems within grid-connected buildings..

Developing a capacity sizing and energy management model for a hybrid photovoltaic-hydrogen grid-connected building scenario. (2022)
Presentation / Conference
ATTEYA, A.I., ALI, D. and HOSSAIN, M. 2022. Developing a capacity sizing and energy management model for a hybrid photovoltaic-hydrogen grid-connected building scenario. Presented at the 2022 All-energy exhibition and conference: low carbon heating and cooling, 11-12 May 2022, Glasgow, UK.

The admission of renewable energy systems into the grid is subject to significant variability due to their intermittency, requiring central generations to cover any transient variation between renewable power input and consumer demand. To allow suppo... Read More about Developing a capacity sizing and energy management model for a hybrid photovoltaic-hydrogen grid-connected building scenario..

Hydrogen producation. (2021)
Presentation / Conference
ALI, D. 2021. Hydrogen production. Presented at the 2021 H2 round table disscussion: our hydrogen future, 8 June 2021, Torino, Italy: [virtual event].

Hydrogen has an energy density of approximately 120 MJ/kg, almost three times more than diesel or gasoline, while Natural gas has 53.6 MJ/kg. In electrical terms, the energy density of hydrogen is 33.6 kWh/kg versus 12.14 kWh/kg for diesel. Hydrogen... Read More about Hydrogen producation..

RGU role in energy transition. (2020)
Presentation / Conference
ALI, D. 2023. RGU role in energy transition. Presented at the 1st Robert Gordon University (RGU) Hydrogen-based energy transition webinar: towards a zero-carbon hydrogen-based energy economy 2020, 16 September 2020, [virtual event].

Robert Gordon University is contributing to the UK Energy Transition through delivering up-to-date accredited courses on Energy Transition Technologies to develop the needed skills. They also provide innovative focused solutions for enabling small an... Read More about RGU role in energy transition..

Hydrogen energy storage (2019)
Book Chapter
ALI, D.M.M. 2019. Hydrogen energy storage. In Demirkan, M.T. and Attia, A. (eds.) Energy storage devices. London: IntechOpen [online], chapter 8. Available from: https://doi.org/10.5772/intechopen.88902

The dominating trend of variable renewable energy sources (RES) continues to underpin the early retirement of baseload power generating sources such as coal, nuclear, and natural gas steam generators; however, the need to maintain system reliability... Read More about Hydrogen energy storage.

Solar powered desalination: zero carbon footprint water desalination plants in Qatar. (2017)
Book
ALI, D. and AL SAOUD, N. 2017. Solar powered desalination: zero carbon footprint water desalination plants in Qatar. Chișinău, Moldova: LAP [online]. Available from: https://www.lap-publishing.com/catalog/details/store/gb/book/978-620-2-05340-2/solar-powered-desalination

Environmental challenges include water and energy consumption. The rapid growth in population associated with industrial and agricultural expansion, especially in industrial countries, have resulted into a higher per capita water consumption and glob... Read More about Solar powered desalination: zero carbon footprint water desalination plants in Qatar..

Developing a thermally compensated electrolyser model coupled with pressurised hydrogen storage for modelling the energy efficiency of hydrogen energy storage systems and identifying their operation performance issues. (2016)
Journal Article
ALI, D., GAZEY, R. and AKLIL, D. 2016. Developing a thermally compensated electrolyser model coupled with pressurised hydrogen storage for modelling the energy efficiency of hydrogen energy storage systems and identifying their operation performance issues. Renewable and sustainable energy reviews [online], 66, pages 27-37. Available from: https://doi.org/10.1016/j.rser.2016.07.067

This paper proposes a thermally compensated electrolyser model coupled with a Pressurised Hydrogen Storage model for modelling Renewable Hydrogen Energy Storage Systems needed to support the uptake of renewable energy sources (RES) integration into t... Read More about Developing a thermally compensated electrolyser model coupled with pressurised hydrogen storage for modelling the energy efficiency of hydrogen energy storage systems and identifying their operation performance issues..

Impact of integrating large-capacity hybrid renewable energy systems into Qatar's power grid. (2016)
Presentation / Conference
ALI, D. and KHALIL, S. 2016. Impact of integrating large-capacity hybrid renewable energy systems into Qatar's power grid. In Proceedings of the 2016 Qatar Foundation Annual research conference (ARC'16): towards world-class research and innovation, 22-23 March 2016, Dohar, Qatar. Dohar: Hamad bin Khalifa University Press [online], EEOP2240. Available from: https://doi.org/10.5339/qfarc.2016.eeop2240

The implementation of large-scale renewable energy systems (such as solar and wind) in the GCC is widely growing nowadays, particularly in remote areas generation applications where the grid extension is costly. The integration of renewable energy sy... Read More about Impact of integrating large-capacity hybrid renewable energy systems into Qatar's power grid..

Modelling the performance of wind–hydrogen energy systems: case study the Hydrogen Office in Scotland/UK. (2015)
Journal Article
VALVERDE-ISORNA, L., ALI, D., HOGG, D. and ABDEL-WAHAB, M. 2016. Modelling the performance of wind-hydrogen energy systems: case study the Hydrogen Office in Scotland/UK. Renewable and sustainable energy reviews [online], 53, pages 1313-1332. Available from: https://doi.org/10.1016/j.rser.2015.08.044

The 'Hydrogen Office building (HO)' presents a wind–hydrogen energy system, located in Fife/Scotland, which has been set-up to demonstrate the role of hydrogen in reducing the impact of wind intermittency in a grid-tied microgrid. The main components... Read More about Modelling the performance of wind–hydrogen energy systems: case study the Hydrogen Office in Scotland/UK..

Solar-hydrogen energy storage for enabling Qatar solar-grid integration and eco-friendly transportation. (2015)
Presentation / Conference
ALI, D., AKLIL, D. and GAZEY, R. 2015. Solar-hydrogen energy storage for enabling Qatar solar-grid integration and eco-friendly transportation. Presented at the 4th TAMUQ (Texas A and M University at Qatar) annual research and industry forum 2015, 2-3 March 2015, Doha, Qatar.

Qatar has drawn up an ambitious plan to install 1.8 GW of solar capacity by 2020. In the transport sector, green hydrogen produced from solar PV offers one of the best opportunities to reduce greenhouse gas emissions and significantly reduce depende... Read More about Solar-hydrogen energy storage for enabling Qatar solar-grid integration and eco-friendly transportation..

Hybrid renewable energy generation systems for eco-friendly buildings in Qatar. (2014)
Presentation / Conference
ALI, D., METRY, M., GOUBA, A., KOUSSA, E. and KOLEED, M. 2014. Hybrid renewable energy generation systems for eco-friendly buildings in Qatar. Presented at the 3rd TAMUQ (Texas A and M University at Qatar) annual research and industry forum 2014, 30 April 2014, Doha, Qatar.

To meet Qatar National Vision 2030, this research aims integrating renewable energy sources (RES) into large educational, industrial and commercial buildings in Qatar while making them energy efficient. The proposed hybrid energy system (HES) is inv... Read More about Hybrid renewable energy generation systems for eco-friendly buildings in Qatar..

Sizing hybrid green hydrogen energy generation and storage systems (HGHES) to enable an increase in renewable penetration for stabilising the grid. (2014)
Thesis
GAZEY, R.N. 2014. Sizing hybrid green hydrogen energy generation and storage systems (HGHES) to enable an increase in renewable penetration for stabilising the grid. Robert Gordon University, PhD thesis.

A problem that has become apparently growing in the deployment of renewable energy systems is the power grids inability to accept the forecasted growth in renewable energy generation integration. To support forecasted growth in renewable generation i... Read More about Sizing hybrid green hydrogen energy generation and storage systems (HGHES) to enable an increase in renewable penetration for stabilising the grid..

Hybrid hydrogen energy production and storage system model as a tool for real-world systems integrity assessment. (2013)
Presentation / Conference
GAZEY, R., ALI, D. and AKLIL, D. 2013. Hybrid hydrogen energy production and storage system model as a tool for real-world systems integrity assessment. Presented at the 10th Hypothesis anniversary conference 2013, 11-12 June 2013, Edinburgh, UK.

Within Scotland ambitious national targets are focused on achieving renewable generation of 100% by 2020. However, existing electrical infrastructure is becoming increasingly constrained.