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Olsthoorn, Joost (author)Ammonia is a precursor in fertilizer production and a potential carbon-free energy carrier, which is essential for the energy transition to more renewable energy sources. To that end, the current fossil fuel based method of industrial ammonia production through the Haber-Bosch process should be replaced by electrochemical ammonia synthesis....master thesis 2024
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van Muijen, Maarten (author)This thesis explores sustainable and economically viable decarbonization pathways for the European ammonia industry. Through literature reviews, expert interviews, and detailed analyses, it addresses the industry's need to transition while maintaining competitiveness. Findings suggest that options like Autothermal Reforming (ATR) with Carbon...master thesis 2024
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Boersma, Femke (author)The consequences of climate change are becoming more and more visible. A significant cause of this is CO2 emissions; the shipping sector is responsible for 3% of global CO2 emissions. As a result, the Fourth IMO GHG Study 2020 presents pathways to reduce the GHG emission of the shipping industry by 50% by 2050. Recent IMO goals have overtaken...master thesis 2024
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van Hamel, Emiel (author)The research focuses on a novel measurement-based approach to estimate the farm-specific ammonia emission potential (AEP) in the dairy sector. By measuring and evaluating the feed-manure chain, feed management strategies and manure parameters influencing AEP can be identified. Ammonia emissions from dairy farms are not only considered to be an...master thesis 2024
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Papadopoulou, MARIANNA (author)Nutrient recovery has lately been a concerning topic regarding the environmental friendliness of it and the high availability of technologies. Ammonia is one of the main compounds in reject water that could be recovered and utilized further in the agricultural sector. Several methods have been found, including conventional electrodialysis, in...master thesis 2024
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Ruis, Sidi (author)Ammonia is essential for global food production as a component of fertiliser, and a potential energy carrier in the energy transition. Electrochemical ammonia synthesis faces numerous challenges as an alternative to the carbon intensive Haber-Bosch process, including competition from hydrogen evolution, and mass transport limitations. An...master thesis 2024
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Huang, Wenqing (author)The excessive nitrogen in waterbodies, often caused by the discharge of ammonia-rich wastewaters, leads to eutrophication, disrupting aquatic ecosystems. Wastewater treatment plants play an important role in the removal and recovery of nitrogen from wastewater streams, thereby preventing pollution. Air stripping in combination with acid...master thesis 2024
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Amladi, Amogh (author), Venkataraman, V. (author), Woudstra, T. (author), Aravind, P.V. (author)Energy storage is vital for the energy transition, enabling reliable power grids based on intermittent renewables. Reversible solid oxide cell (rSOC) technology is promising for seasonal energy storage. The novel finding from this work is that optimised air recirculation for rSOC in endothermic electrolyser mode leads to efficiency being...journal article 2024
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Narayen, D. (author), VAN Berlo, E.M.C. (author), van Lier, J.B. (author), Spanjers, H. (author)Simulated ammonium sulfate scrubber effluent was treated using bipolar membrane electrodialysis (BPMED) to recover sulfuric acid for reuse in the scrubber, and ammonium hydroxide as a product, without using any chemicals. The effect of pH and temperature of the feed solution on the energy consumption of the BPMED and the purity of the...journal article 2024
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Zhao, H. (author)Green ammonia is poised to be a key part in the hydrogen economy. This paper discusses green ammonia supply chains with a focus on market structures. The architecture of upstream and downstream supply chains is explored. Market structure prototypes in different stages are explored based on transaction cost economics and lessons from the...journal article 2024
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Boyce, Johanna (author), Sacchi, Romain (author), Goetheer, Earl (author), Steubing, Bernhard (author)A prospective life cycle assessment was performed for global ammonia production across 26 regions from 2020 to 2050. The analysis was based on the IEA Ammonia Roadmap and IMAGE electricity scenarios model for three climate scenarios related to a mean surface temperature increase of 3.5 °C, 2.0 °C, and 1.5 °C by 2100. Combining these models...journal article 2024
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Schenkel, Frank (author)To achieve the emission goals set out by the International Maritime Organization in 2018. Low or zerocarbon fuels will have to be used. Ammonia is considered to be a possible candidate since it doesn’t contain carbon. This thesis will attempt to study two methods that characterize the closed-cylinder process of an internal combustion engine; the...master thesis 2023
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Eulderink, Nicole (author)Low-carbon hydrogen is expected to have a large role in future energy systems. Recent research shows the short-term financial feasibility of blue hydrogen is often higher than green hydrogen. Ammonia production is particularly carbon-intensive due to its hydrogen production routes. This research focuses on the physics-based modelling of blue...master thesis 2023
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Tkach, Alexander (author)In the transition towards a renewable energy-powered industrial sector in the Netherlands, hydrogen plays a pivotal role. The anticipated increase in hydrogen demand by 2030 is projected to exceed the anticipated capacity of domestic green hydrogen production, hindered by the high costs and fluctuations of local renewable electricity generation....master thesis 2023
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Huang, Wenqing (author)This study evaluates the effectiveness of organic acids, specifically citric acid, lactic acid, and malic acid, as scrubbing agents for ammonia (NH3) recovery from waste air streams. The acid scrubbing process was modeled using Aspen Plus® and validated against sulfuric acid scrubbing process data available in the literature. The effects of...student report 2023
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Kambhampati, Sampreeth (author)The carbon emissions from human activities are causing significant harm to the planet, leading to increased temperatures, melting of polar ice caps, rising sea levels, and other negative impacts on the environment. One promising solution is the use of green hydrogen as a fuel source, which could have a much lower carbon footprint than...master thesis 2023
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Brancaccio, Marina (author)The ever-increasing power demand, the high scarcity of fossil fuel resources and the growing environmental pollution have pushed the development on technologies related to sustainable energy systems. Maximizing the energetic performance of industrial processes is a key aspect in this quest for sustainable<br/>energy management. A large share of...master thesis 2023
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Rodenburg, Sieb (author)Green hydrogen is anticipated to be pivotal in the decarbonisation of global energy systems. For the Netherlands, both domestic production and imports of green hydrogen are believed to be needed for effective decarbonisation. Yet, significant uncertainty surrounds the cost discrepancy between domestic productions and initial imports, largely...master thesis 2023
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Hoeksma, Bram (author)Currently, our society faces a pressing challenge: global warming. The solution lies in the energy transition, which replaces fossil fuels with clean sources. This requires a global effort across all sectors, including shipping. While a significant portion of shipping relies on polluting fuels, the European Union’s Green Deal aims for climate...master thesis 2023
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Thiruvenkatachari, Priyadarshini (author)Elevated levels of ammonia in discharged water leads to eutrophication and potential toxicity in water bodies. To combat nitrogen pollution, strict ammonium discharge limits of 1 mgNH<sub>4</sub>-N/L standard is set by the water framework directory. In many cases, current wastewater treatment facilities struggle to consistently meet this...master thesis 2023