Preliminary design methods for the thermal management of fuel cell powered aeroengines

Hydrogen fuel cells are set to play an important role in decarbonizing the aviation sector. They operate at higher efficiencies than turbine engines, but their low operating temperature requires a dedicated thermal management system. The added drag, weight and parasitic power of such a system has a high impact on aircraft performance and its...

Conceptual Design of Fuel Cell Commuter Aircraft: A study into the performance and viability of CS-23 category transport aircraft utilising hydrogen fuel cell propulsion

This research project investigated the potential benefits of using hybrid hydrogen fuel-cell powertrains in commuter aircraft certified under the EASA CS-23 category to reduce the aviation industry's environmental impact. The study used an in-house aircraft design synthesis software to model conventional and fuel cell aircraft, including a...

Sustainable transport of polymetallic nodules

This research examines the possible pathways and available technologies that will help the shipping sector to achieve the climate goals set by the IMO. Reaching these goals will require financial incentives and policies regarding sustainability. These policies need to describe regulations at both international and regional level given the...

Conceptual Design of Hydrogen Fuel Cell Aircraft: Flying on hydrogen for a more sustainable future

The demand for air travel is increasing as more people gain access to commercial aviation. As the current generation of aircraft makes use of fossil fuel combustion, this growth results in an increase in the global emissions. This is at odds with the worldwide efforts of reducing the adverse effects of climate change. Therefore, advanced...

Hydrogen Powered Ship Propulsion for High-Speed Craft: The implementation of Fuel Cell Battery Propulsion Systems

The shipping industry has a notable share in global greenhouse gas emissions and other pollutants such as sulphur and nitrogen oxides. Fuel cells and batteries are identified as relatively new technologies for shipping with high potential and hydrogen is also considered as one of the most promising sustainable fuels, especially for smaller...

Thermal efficiency improvement of closed hydrogen and oxygen fuelled combined cycle power plants with the application of solid oxide fuel cells using an exergy analysis method

Today’s renewables, wind and solar power, have a fluctuating nature, making the grid less stable.However, with the increasing share of intermittent sources of renewable power, novel options have to be created to stabilize the power grid. One of these options is energy storage via the conversion of excess power to hydrogen, during periods of high...

Feasibility Study of a Fast Electric Passenger Ferry

The negative effects of global warming can already be noticed. The burning of fossil fuel not only contributes to global warming, but also to the reduction of air quality, especially in urban areas. In order to limit the climate change, as well as to improve the air quality, more and more vehicles are replaced by emission free versions. This...

Zero-emission double ended ferries: A concept exploration study

The goal of this thesis has been to develop a concept exploration tool for zero-emission double ended ferries, that determines the feasibility of different energy systems, creates corresponding design parameters and helps decide between zero-emission energy types. <br/><br/>The research goal was achieved in three steps. Firstly, knowledge was...

Powering a representative ROPAX ferry in 2050 with minimal greenhouse gas emissions

The International Maritime Organization (IMO) issued on the 13th of April 2018 a press release titled: “UN body adopts climate change strategy for shipping”. [1] This document illustrates the commitment of the IMO to significantly reduce the emission of greenhouse gasses (GHG) from international shipping in coming decades. However, the question...