Weight Estimation of Gas Turbine Engines: Development of a Component-Based Preliminary Engine Design Tool

The need for more efficient aircraft has spawned the conception of a variety of novel engine and aircraft architectures, such as the combined-cycle engine proposed by researchers at Delft University of Technology. To evaluate the potential benefits of these concepts comprehensively, in-depth performance simulations are required. Furthermore,...

An Ammonia-Fuelled Solid Oxide Fuel Cell - Internal Combustion Engine Hybrid System for Ships

Ammonia (NH3) may reduce CO2 emissions from the marine industry as it is carbon-free and more energy-dense than hydrogen or batteries. Pure ammonia exhibits poor combustion characteristics, so several researchers have already operated small-scale internal combustion engines (ICEs) with ammonia-hydrogen blends. However, nitrogen oxides NOx and...

Test Cell Design for the Development of a Hydrogen Internal Combustion Engine: Risk Mitigation of Hydrogen Leakages in a 20-feet Container

A collaborative group comprising of the TU Delft, Deltion College and Dutch Electric Aviation Centre aim to develop a flying test bed for sustainable aviation. The collaborative group has acquired a Cessna 337F Skymaster with the intent to replace one of the engines with a retrofit hydrogen internal combustion engine. An ancillary engine will...

Engine Integration of the Flying V: Quantification of Engine Integration Effects using Wind Tunnel Experiments

An experimental investigation was done regarding the propulsion system and airframe integration issues associated with the novel Flying V configuration. The experimental investigations involved a series of wind tunnel tests with a 4.6% scale half model, conducted in the TU Delft OJF low speed wind tunnel. Balance measurements allowed significant...

Development of a transient CFD methodology for the optimization of CNG engines

Compressed natural gas (CNG) has been gaining attention in the automotive industry since it allows for a substantial reduction in carbon dioxide emissions. Recent advancements in direct-injection technology have contributed to an increase in volumetric efficiency and engine power, but the physical modeling of such gaseous injection with...

Engine-Airframe Integration for the Flying-V

The Flying-V is a novel flying wing concept where the main lifting surface has been fully integrated with the passenger cabin. Previous studies have focused on the aerodynamic and structural design of the airframe; but, prior to determining which engine-airframe integration alternative is most beneficial (e.g. boundary layer ingestion, distributed...

Quality of the integral aircraft engine MRO chain: A case study on the Low and High Pressure Compressors at KLM Engineering & Maintenance Engine Services

This research presents a model to estimate the influence of the variance of the quality of repair steps on the EGT Margin within the serviceable limits of the overhauled modules. This model is created using literature and a single case study conducted at KLM Engineering & Maintenance Engine services (KLM E&M ES). The model is tested...