Searched for: subject%3A%22Heat%22
(1 - 20 of 85)

Pages

document
Cascioli, E. (author)
The current need to ensure an effective and prompt transition of the energy sector towards zero-carbon has renewed the interest for nuclear technology. Small Modular Reactors (SMRs) seem particularly interesting for their reduced capital cost, operational flexibility and enhanced safety and security. Different SMR concepts are being developed...
doctoral thesis 2024
document
Giuffré, A. (author)
In 2022 the aviation sector accounted for 1.9%of global greenhouse gas emissions, 2.5% of global CO2 emissions, and 3.5% of effective radiative forcing. To reach the long-term target of net zero emissions, revolutionary aircraft designs, featuring electrified or hydrogen powered propulsion systems, are needed. At the same time, the...
doctoral thesis 2024
document
van der Roest, E. (author)
The transition from a fossil to a renewable energy system presents challenges in ensuring reliable and affordable energy supply. This dissertation addresses these challenges by proposing an integrated system approach to designing a renewable energy and water system on the neighborhood level. The concept, known as Power-to-H3, involves converting...
doctoral thesis 2023
document
Tao, N. (author)
THICK composite materials, e.g., thickness of more than 50 mm, are increasingly being used across diverse industry sectors owing to their significant advantages of weightsavings, superiormaterial properties and load-carrying capability. These materials tend to be adopted in safety-critical applications such as large primary or secondary load...
doctoral thesis 2023
document
Kaandorp, C. (author)
doctoral thesis 2023
document
Zimba, H.M. (author)
Through precipitation retention and evaporation (by both interception and transpiration), woodlands play a significant role in the global moisture cycle. Evaporation is the largest, but at the same time, the most difficult flux to observe in a woodland. Accounting for woodland evaporation is important for hydrological modelling for the efficient...
doctoral thesis 2023
document
Tan, C. (author)
Historically, viruses have always been the causative agent of most human diseases. As one of the most devastating pandemics in human history, the COVID-19 pandemic, associated with SARS-CoV-2, is responsible for tens of millions of casualties in the world since the end of 2019. Meanwhile, it also has destabilized global economics. Therefore, in...
doctoral thesis 2023
document
Morete Barbosa Bertolo, V. (author)
The use of materials in increasingly severe service conditions raises concerns about structural safety with respect to cleavage fracture. There are three main material-related challenges that structures face under harsh environments: 1) the trade-off between strength and toughness; 2) the ductile-to-brittle transition behaviour of BCC high...
doctoral thesis 2023
document
Yan, R. (author)
High-strength steel (HSS) has higher strength but lower ductility than mild steel. The cross-section of the structural members may be reduced using HSS instead of mild steel, provided the buckling of elements does not govern the failure. The reduced member size benefits the environment and economy by means of less energy consumption, less carbon...
doctoral thesis 2023
document
't Hart, P.A. (author)
Device characteristics at cryogenic temperatures can deviate significantly from their room temperature behaviour. For example, the threshold voltage of a MOSFET can increase by more than 100 mV when it is cooled down to 4.2 K, as shown in this thesis. If a designer is not aware of this shift, circuits that work as intended at room temperature...
doctoral thesis 2022
document
Reurings, C. (author)
The current concerns regarding global warming and climate change in Europe and other parts of the world also influence developments in the automotive sector. Not only are alternative energy and power sources making their advent, but greenhouse gas emission reduction has also become a major factor in the development of vehicles with combustion...
doctoral thesis 2022
document
Noori, S. (author)
Emerging economies produce 70-90% of the world’s steel, cement, and chemicals, which are essential for development. However, performance indicators such as carbon intensity and energy use per GDP reveal that industrial development trends in emerging economies are not sustainable. The ideal of industrial development that sustains and improves...
doctoral thesis 2022
document
Schilperoort, B. (author)
Forests cover a large part of the globe, and are responsible for a large amount of evaporation and the fixation of carbon. To be able to better understand this atmospheric exchange of forests, and how the forests will behave under future climate change, both accurate measurements as well as models are required. However, due to their height and...
doctoral thesis 2022
document
Bijster, R.J.F. (author)
In this thesis a proof-of-principle demonstration is developed that uses the heat flux between a probe and a sample as a proxy for their separation. The proposed architecture uses a probe that consists of a bilayer cantilever with an attached sphere at its free end. The deflection of the cantilever that is caused by the heat input is measured...
doctoral thesis 2021
document
Leverone, F.K. (author)
Exploring and utilising space to benefit humankind is undeniably a costly venture where the higher the mass of the satellite, the higher the cost to launch. However, the rewards of space-related achievements are indisputable. These achievements range from increasing our understanding of the universe using satellites, such as the Hubble Space...
doctoral thesis 2021
document
Markensteijn, A.S. (author)
Energy systems are vital in modern society, and reliable operation is crucial. Multi-carrier energy systems (MESs), which couple two or more single-carrier systems, have recently become more important, as the need for sustainable energy systems increases. Important tools for the design and operation of energy systems are steady-state simulation...
doctoral thesis 2021
document
Hajizad, O. (author)
In this PhD thesis, we investigated possible steel candidates for use in railway crossings in order to reduce the damage in them. Pearlitic R350HT together with Bainitic grades including CrB, B1400 and carbide free B360 were investigated for their mechanical properties such as ultimate strength, yield strength, ductility and hardness. The...
doctoral thesis 2021
document
Silvestri, S. (author)
Radiative heat transfer has a large influence in engineering systems, especially when the temperature involved is elevated. For this reason a correct assessment of heat transfer in presence of radiation is of great importance in high temperature and pressure equipment such as combustion chambers, heat exchangers as well as reentry vehicles and...
doctoral thesis 2021
document
des Tombe, B.F. (author)
The pressure on groundwater systems, especially in coastal regions, increases as the population rapidly grows. In these regions, management of water tables and fluxes is important to minimize droughts, salt-water intrusion, and flooding. Proper management of such groundwater systems requires knowledge of how groundwater responds to water...
doctoral thesis 2021
document
Xu, S. (author)
Porous asphalt, due to its advantages of noise reduction and water drainage, is widely used in the surface layer of the highway in the Netherlands. However, the porous structure makes it prone to ravelling, therefore more frequent maintenance and reconstruction than other asphalt mixtures The porous asphalt service life can be extended with self...
doctoral thesis 2020
Searched for: subject%3A%22Heat%22
(1 - 20 of 85)

Pages