Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 49 for “"green hydrogen"”.
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Technology assessment of green hydrogen in South Africa
… investigated the sustainability indicators for green hydrogen in South Africa's Northern Cape Province to inform investment and policy decisions. Using an exploratory sequential mixed-method approach, the study first conducted a systematic literature review to identify relevant sustainability …
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H-BN integration in III-nitride devices for green hydrogen applications
… integrated photoelectrochemical (PEC) cell for green hydrogen production using PEC water splitting. The focus is on integrating InGaN (Indium Gallium Nitride), GaN (Gallium Nitride), and h-BN (hexagonal Boron Nitride), which are promising materials for hydrogen production and storage …
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Development of novel electrodes for oxygen evolution reaction towards green hydrogen production
L'abstract è presente nell'allegato / the abstract is in the attachment
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Risk and safety assessment of an alkaline electrolyser system for green hydrogen production
Green hydrogen produced through electrolysis offers a sustainable alternative as a clean fuel, playing a crucial role in the global shift towards decarbonization. As green hydrogen production scales up, safety of hydrogen technologies becomes critical to both public trust and sustainable …
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US Green Hydrogen Production: Strategic Approaches to Enhancing Economic Viability and Market Development
… for sustainable energy solutions intensifies, green hydrogen emerges as a potential player in a sustainable energy future. This thesis explores the viability and economic landscape of green hydrogen production within the United States. It places emphasis on the pivotal role of renewable energy …
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Assessing resource curse risks in namibia's green hydrogen developments with insights from diamond mining
The global shift towards a green economy has garnered momentum in various countries, propelled in good part by steep growth and falling prices of renewable energy. So-called ”green” hydrogen, derived from electrolysis of water at times and in places with excess renewable energy is expected to …
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Assessment of fire and explosion hazards in large-scale battery energy storage systems intended for Namibian green hydrogen projects
… is a pivotal component in advancing Namibian green hydrogen projects, aimed to promote sustainable energy solutions. But there are serious fire and explosion risks associated with the use of Battery Energy Storage Systems, particularly those that use lithium-ion technology. These risks are …
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Optimizing energy conversion efficiency of a proton exchange membrane green hydrogen generation system while incorporating balance of plant modeling
Hydrogen has the potential to decarbonize several difficult to decarbonize sectors of the U.S. energy economy such as medium- and heavy-duty transportation, energy storage, and industrial processes such as steel making. Currently most of the hydrogen produced globally is produced with steam methane …
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Sizing hybrid green hydrogen energy generation and storage systems (HGHES) to enable an increase in renewable penetration for stabilising the grid.
… (EST) must be utilised. Recent advances in Hydrogen Energy Storage Technologies (HEST) have unlocked their potential for use with constrained renewable generation. HEST combines Hydrogen production, storage and end use technologies with renewable generation in either a directly connected …
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Assessment of the performance of a Photovoltaic (pv) system for powering electrolysers in the green hydrogen project at Tsau//khaebs National Park using modelling and simulation approach
… (SCDI), aims to produce 300,000 tons of hydrogen annually at Tsau //Khaeb National Park using wind and solar energy. This thesis focuses on the PV system required to power the electrolyser, involving site analysis, component selection, and system optimisation using PVsyst and Fraunhofer …
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Techno-Economic Assessment of Electrolytic Hydrogen Production under Dynamic Operations
Green hydrogen has an important role to play in the future decarbonized world as it has the potential to decarbonize many sectors of the economy. Proton Exchange Membrane (PEM) electrolysis is one of the production pathways for green hydrogen. This study uses a techno-economic optimization model …
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Hidrogênio verde: proposta de diretrizes para o desenvolvimento do mercado
… where decarbonization options are limited, green hydrogen (H2V), considered the central pillar of decarbonization of the economy, has emerged as a critical option to reduce greenhouse gas emissions in sectors that are difficult to decarbonize, in addition to, enabling the transport of energy …
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Innovative energy systems and processes based on hydrogen from RES and its derivatives in the energy transition process
This thesis investigates the integration of green hydrogen and ammonia production in renewable energy-powered energy systems, as a decarbonization pathway in the energy sector. Climate change mitigation and the transition to carbon-free energy systems are challenged by the inherent intermittency of …
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Influence of enclosure geometries and internal installations on the explosion pressure of hydrogen-air mixtures
The use of green hydrogen gas as a clean energy carrier solution is gaining global momentum and Namibia is on track to being one of the major producers of green hydrogen. The growing emphasis on green hydrogen has elevated the importance of safety in its value chain. This thesis investigates the …
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A geospatial economic analysis of hydrogen production from offshore wind using electrolysers
… renewable energy has driven growing interest in green hydrogen as an energy carrier. Green hydrogen refers to hydrogen produced without generating carbon emissions. Typically, it’s produced from renewable energy sources. Combined with the advantages of offshore wind, green hydrogen production …
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A prospective comparative lifecycle assessment for green and grey hydrogen production and utilisation in the South African context
Green hydrogen has gathered increasing interest as a medium in the transition to a carbonneutral economy, with several large, export-focused projects currently under development in Southern Africa. However, the environmental implications of hydrogen production and utilisation are not well …
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Integrated Energy Modeling Tool for Electric and Gas Infrastructure Decision Support
… a focus on infrastructure costs versus utilizing hydrogen blending, taking into account the current cost of green hydrogen. Previous research has separately discussed implications and costs of both hydrogen blending and electrification. The former leading to increased safety risks at high blend …
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Metal-organic frameworks and porous composites for photocatalytic and sensing applications
… through organic ligands. As a way of producing green hydrogen, MOFs can be employed as photocatalysts which can absorb light energy, leading to the reduction of water to hydrogen with no carbon emissions. The current research used densified, monolithic MOFs (monoMOF) in contrast to conventional …
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Sonoelectrochemical (20 khz) production of hydrogen from aqueous solutions
There are various methods of producing Hydrogen. These include electrolysis, which this work is based upon, and steam reforming; currently the most commercially viable method. The research herein investigates methods of producing ‘green’ Hydrogen more efficiently by using ultrasound (20 kHz) …
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Comparative Assessment of the Societal Cost of PtL and LH₂ as Aviation Fuels
Alternative fuels produced from green hydrogen will play a critical role in decarbonization of aviation, owing to their globally scalable production and mission flexibility. However, there is no consensus whether it is preferable to liquefy hydrogen and use it directly as a fuel (LH₂) or to combine …
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