Dr Dallia Ali's Outputs (48)

The state of the art in hydrogen storage. (2024)
Journal Article
REYNOLDS, J., ALI, D., NJUGUNA, J. and AMADHE, F. 2024. The state of the art in hydrogen storage. Green energy and environmental technology [online], 3(1), pages 1-40. Available from: https://doi.org/10.5772/geet.20240074

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..

Hybrid renewable-hydrogen energy systems and their role in the energy transition. (2024)
Presentation / Conference Contribution
ALI, D. and ATTEYA, A.I. 2024. Hybrid renewable-hydrogen energy systems and their role in the energy transition. Presented at the 2024 Hydrogen accelerator meeting, 22 March 2024, Edinburgh, UK.

Global energy-related CO2 emissions grew by 1.1% in 2023, increasing 410 Mt to reach a new record of 37.4 Gt. Emissions from coal accounted for more than 65% of the increase in 2023. The global shortfall in hydropower generation due to droughts drove... Read More about Hybrid renewable-hydrogen energy systems and their role in the energy transition..

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..

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 Contribution
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 a capacity sizing and energy management model for a hybrid photovoltaic-hydrogen grid-connected building scenario. (2022)
Presentation / Conference Contribution
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..

Optimization of hydrogen-based zero-carbon building scenario. [Image] (2021)
Digital Artefact
ALI, D. 2021. Optimization of a hydrogen-based zero-carbon building scenario. [Image]. COP'26 UK universities' climate innovation showcase, 1 October - 30 November 2021. Hosted by University of Strathclyde [online]. Available from: https://tinyurl.com/2p83jysj

The image shows the Solar-Hydrogen Hybrid System proposed to feed the energy demands of a grid-connected building/campus to eliminate/reduce the carbon footprint associated with its energy consumption. This innovative system will accordingly contribu... Read More about Optimization of hydrogen-based zero-carbon building scenario. [Image].

Hydrogen producation. (2021)
Presentation / Conference Contribution
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 Contribution
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..

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 Contribution
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 Contribution
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 Contribution
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.

Modelling hydrogen energy technology to facilitate increased renewable penetration. (2013)
Presentation / Conference Contribution
GAZEY, R., ALI, D. and AKLIL, D. 2013. Modelling hydrogen energy technology to facilitate increased renewable penetration. Presented at the 2nd ETP (Energy Technology Partnership) annual conference 2013, 16-17 April 2013, Edinburgh, UK.

Started on the 01st February 2011, this research project has developed models for the innovative applications of Hydrogen (H2) production, storage and end-use technologies to facilitate the planned increase of renewable generation into existing elect... Read More about Modelling hydrogen energy technology to facilitate increased renewable penetration..