Воркшоп Нидерланды 2023

The electric-pump cycle is an alternative rocket engine configuration that uses an electric motor instead of a turbine to power the pumps. It offers advantages like simpler design and lower costs, but has reduced performance compared to conventional cycles. Previous research focused on comparing it to the gas generator cycle, but now a Rocket Cycle Analysis Tool called RoCAT has been developed to analyze various cycles, including the open expander cycle, across different thrusts, burn times, chamber pressures, and propellants. RoCAT also optimizes inputs for each cycle to ensure a fair comparison. This research not only examines the current performance of the electric-pump cycle, but also predicts its future performance based on historical trends in battery and electric motor technologies.

The use of low-thrust propulsion in interplanetary missions can increase payload while posing a complex planning challenge. This thesis explores the impact of different feature space compositions and target choices on the performance of artificial neural networks. The dataset consists of Earth-Mars transfer trajectories generated through indirect optimization. It highlights the importance of properly scaled data and examines the influence of other choices on performance, particularly the choice of target.

We invite you to join our AI & Data Science Lifecycles on Oracle Cloud: Overview & Hands-on Workshop. This session will familiarize you with Oracle's AI and Data Science services. The workshop is suitable for Data Scientists, Research Scientists, Data Engineers, and anyone interested in the topic. Basic proficiency in Python or R is required for hands-on activities. Presentations will be in English, with some speakers presenting in Dutch.

Teaching and Learning Services at TU Delft has introduced Vevox as the new polling tool solution for the campus. Vevox was chosen after a selection process and is accessible to all staff and participants on different devices. It offers various features, including the ability to create polls, quizzes, surveys, and QA. The use of Vevox also adheres to strict privacy measures to protect data according to organizational standards.

The need for smaller radial pumps has been expressed in various fields, including rocket propulsion. This has led to research on optimizing these pumps. Design recommendations in the literature aim to mitigate the effects of low Reynolds regimes. In this study, some of these recommendations are applied to a small, high-speed turbopump used in the Navier rocket engine. A sensitivity analysis is conducted on the pump's outlet pressure and efficiency to assess the effectiveness of the design changes. The analysis reveals that the impeller outlet width has the greatest impact on pressure, while the pump's inlet diameter is most influential on efficiency. Based on the sample points generated in the analysis, a regression is performed to create a surrogate model. This model is then used in a simple optimization routine to obtain an improved version of the Navier pump. The optimized pump meets the engine's requirements for outlet pressure and demonstrates increased overall efficiency.