Institution
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
Recent research
- Engineering & TechnologyOpen access
Abstract High-temperature heat pumps (HTHPs) are a key technology for decarbonizing industrial process heat. Within such systems, two-phase water ejectors offer a promising opportunity to function as secondary steam compressors. By entraining hot steam with high-pressure water, t...
- Physics & SpaceOpen access
Origin of Long‐Wavelength Variations in Crustal Thickness on Rocky Planets
Abstract Long‐wavelength crustal thickness variations are observed on telluric planets, particularly on Mars and the Moon whereas Mercury appears to lack such variations. They may stem from two early‐stage positive feedback mechanisms that can emerge in stagnant‐lid planets. Both...
- Engineering & TechnologyOpen access
High-temperature heat pumps are a promising pathway for electrifying industrial process heat, but their application to large-temperature-glide duties remains technically challenging. Milk powder spray drying is one such application, requiring air heating to approximately 200 °C w...
- Climate & EnvironmentOpen access
In Europe, bare soil is typically exposed only during short time windows and optical sensing by satellite constellations, such as Sentinel-2 and Landsat, therefore commonly relies on aggregates of soil reflectance spectra over extended periods of time. Depending on the length of...
- Health & MedicineOpen access
Stability of Medicinal Nanoemulsions to Spaceflight: Insights From the StarMed Experiment
Space missions require liquid drug formulations that remain physically stable and exhibit predictable release under launch, microgravity, and handling stresses. This study examined melatonin‑loaded nanoemulsions flown on the MAPHEUS‑15 sounding rocket, comparing an uncoated nanoe...
- Engineering & TechnologyOpen access
Abstract. Wind turbine wakes reduce the generated power and increase loads on downstream turbines. Their characteristics depend strongly on the atmospheric conditions in the boundary layer. This study addresses the turbine–atmosphere interaction specifically in the near-wake regi...
- Engineering & TechnologyOpen access
Deep sleep on a light European train: modularity and lightweight, key to profitable night trains
Current night trains pose a challenge to economic efficiency due to ageing vehicles, limited space and high operating costs, among other things. The AliSa project is rethinking European night trains by developing a modular and lightweight sleeping car concept. A coach concept is...