Optimizing and developing energy technologies

The provision of a sustainable, i.e. efficient, resource-conserving, environmentally acceptable and reliable, energy supply is one of the most crucial challenges facing society in the future and is becoming increasingly more significant due to global developments. This challenge requires the combined action of a wide range of actors and expertise. For energy research, this means above all that collaborations between larger numbers of actors will become ever more important in order to provide scientific and technical solutions.

At the moment, about 50 members of JARA-ENERGY are involved in the field of energy research, exploiting their compentencies and research infrastructure in a complementary manner. Their objective is to explore, optimize or develop from scratch energy technologies and system solutions, both along system and value-added chains as well as with respect to interdisciplinary cross-cutting issues, from basic research up to applications that are ready to use. 

JARA-ENERGY's fields of research are energy technologies in which common research interests are to be found and where added valued with respect to science, industry and research structure can be achieved by collaborations.

The research activities of JARA-ENERGY are grouped along the energy value-added chain and can be broken down into seven fields of action, of which two are cross-sectional topics. Within these fields of action, and also beyond their boundaries, JARA-ENERGY researchers take an interdisciplinary approach in creating cooperative solutions for tomorrow's energy supply.

Drag Reduction of External Flows

Right from the outset of the era of jet airplanes, a reduction in fuel consumption was an essential goal of aircraft construction. Modern medium- and long-haul aircraft spend approximately 98% of their operation time in cruise flight at Mach numbers of up to 0.85. Hence, apart from the use of efficient engines and the application of composite materials that reduce the structural weight of the airplane, the fuel consumption of a commercial aircraft can be reduced by an improved aerodynamic performance, i.e., reduced drag, in transonic cruise flight. This aerodynamic performance is mainly determined by the state of the boundary layer on the aircraft’s wings. Thus, the skin friction drag of future aircraft could be reduced significantly if it was possible to alter the turbulent boundary layer at high Reynolds numbers without great energy expenditure.

Stability of mixed conducting functional materials for gas permeation membranes in energy-related applications

Functional materials to be employed in power plant and other energy-related technology, such as fuel cells or gas separation membranes, are, during operation, subjected to a chemical gradient.

The gradient serves as driving force for the transport of one of the gas phase components through the material, for example oxygen that is separated from air through transport of oxygen ions across a metal oxide membrane. Excellent chemical stability under process conditions is a vital prerequisite for long-term operation of such a membrane or a fuel cell.

Materials corrosion can be a significant problem particularly with high-temperature dense ceramic gas separation membranes and solid oxide fuel cells, which are partly in contact with corrosive or reducing gas streams and whose operation temperatures are typically in the range of 700-1000 oC. Materials corrosion may occur by several different mechanisms:

JARA-ENERGY Seed Funds

Within internal research funding the following projects are financed by Seed Funds

Markus/Schröder
Untersuchungen zur Stabilität von gemischtleitenden Funktionsmaterialien für Membrananwendungen in der Energietechnik

Markus/Steinbrech/Music/Emmerich
Phase stability and thermochemical properties of LSCF and BSCF perovskites for application in oxyfuel processes

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„Simulation Lab Ab-Initio Methods in Chemistry and Physics“

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