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 17 of 17 for “"Energy vector"”.
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Blue hydrogen co-generation as an energy vector for a sustainable future
Hydrogen has been identified as a potential energy vector to decarbonize future energy use. For hydrogen to fulfill its potential, it must be produced in sustainable ways such that economics, environmental, social, political, and cultural aspects of its production are all considered and …
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INNOVATION AND OPTIMIZATION OF THE HYDROGEN TRANSPORT AND DISTRIBUTION CHAIN AS A GREEN AND RENEWABLE ENERGY VECTOR
Because of its enormous energy storage capacity, hydrogen appears to play a significant role in a world where fossil fuel depletion, global warming, and growing energy consumption are the main factors. However, issues with storage and transportation restrict its application. The aim of this thesis, …
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Hydrogen-Rich Syngas Derived from Smouldering Biomass and Hydrocarbon Wastes
… to new fuel sources to meet the surging global energy demand. Hydrogen has been proposed as a promising energy vector being both a net-zero carbon emitter and having one of the highest gravimetric energy densities of known fuels. Production of hydrogen, however, is difficult with many of the …
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Pathways to hydrogen economies : a quantitative cross-national investigation of hydrogen discourses and strategy formulation in Britain and Germany
… have been suggested as a very promising future energy carrier and technology to address the urgent problem of climate change and other symptoms of a global energy crisis. The flexible energy carrier and the emergence of a hydrogen based economy, according to its proponents, promises enormous …
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Developing hydrogen oxidation electrocatalysts using a frustrated Lewis pair approach
In order for hydrogen to be utilised as an energy vector, precious metals such as platinum are often employed as electrocatalysts, to enable the efficient conversion of hydrogen into electrical energy. However, the low abundance and high cost of such metals limits their economic viability. …
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Mesophilic fermentative hydrogen production from sewage biosolids
… in hydrogen as a clean, sustainable, alternative energy vector. Using sewage biosolids as the substrate for fermentative hydrogen production offers several advantages over the use of other biomass sources. It is available at little or no cost and is abundant, being produced wherever there are …
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Development of ZnO Nanotube Arrays for Chemical Sensing
… produced using renewable sources is a clean energy vector that could help the world achieve this goal. Nevertheless, hydrogen leakage can cause more global warming as it prolongs methane lifetimes in the atmosphere. Therefore, there is a need to promptly detect hydrogen leaks as its …
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Routes towards low-cost renewable hydrogen production
… from declining conventional fossil fuel energy to renewables is one of the most significant challenges facing humanity. Hydrogen is anticipated as the key future energy vector. This is sought to bring more value and utility to renewable energy resources, and eventually providing an energy …
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A technical, economic and environmental analysis of renewable gas produced from power to gas systems
… emissions, increasing the supply of indigenous energy, providing long-term energy storage, facilitating intermittent renewable electricity sources and providing an advanced source of renewable transport fuel. The technology involved is Power to Gas (P2G) which uses electricity to split water …
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Scattering of internal gravity waves
… In addition to the radiation of momentum and energy remote from generation sites, internal waves drive vertical transport of heat and mass through the ocean by wave breaking and the mixing subsequently produced. Identifying regions where internal gravity waves contribute to ocean mixing and …
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Analysis of hydrogen-based energy storage pathways
Hydrogen is considered to become a main energy vector in sustainable energy systems to store large amounts of intermittent wind and solar power. In this work, exergy efficiency and cost analyses are conducted to compare pathways of hydrogen generation (PEM, alkaline or solid oxide electrolysis), …
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Ruthenium and Cobalt Catalysts for Hydrogen Production from Ammonia
In the global energy transition, green ammonia can serve as a carbon-free energy vector and is suited to store renewable energy long-term in its chemical bonds. Ammonia can then be partially cracked for direct use as a fuel or fully cracked for use in a hydrogen fuel cell. In both cases, catalytic …
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A geospatial economic analysis of hydrogen production from offshore wind using electrolysers
The transition to 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 …
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On modelling for domestic energy autonomy in the UK :understanding the role of traditional and novel technologies for small-scale hydrogen storage
… sector is one of the largest consumers of energy in the UK. The poor energy performance of the existing housing stock within this sector has resulted in an ever-growing energy demand and an energy infrastructure that is struggling to cope. With an increasing drive towards decarbonisation …
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The production of pure hydrogen with simultaneous capture of carbon dioxide
… CO2 makes the capture of CO2 during energy generation from carbonaceous fuels, e.g. coal or biomass, necessary for the future. For hydrogen, an environmentally-benign energy vector whose sole combustion product is water, to become a major energy source, it must be produced in an …
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Technical and economic assessment of renewable hydrogen production and utilization for the transportation sector
Hydrogen energy is mooted to play a critical role in decarbonization of the transportation sector, due in part to its relatively high energy density (120 MJLHV/kg) and clean combustion product (the only combustion product is water). Renewable hydrogen can be generated from various renewable energy …
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La tecnología del hidrógeno, una oportunidad estratégica para la perdurabilidad del sector energético en Colombia
… de tecnologías ligadas con el petróleo como vector energético, han generado efectos medioambientales adversos que aunados con las limitadas reservas mundiales de crudo y su estrecha relación con el crecimiento económico mundial ha generado presiones economías, políticas y sociales en todos …