Sökning: "Impinging receiver"
Hittade 5 avhandlingar innehållade orden Impinging receiver.
1. Development of an Impinging Receiver for Solar Dish-Brayton Systems
Sammanfattning : A new receiver concept utilizing impinging jet cooling technology has been developed for a small scale solar dish-Brayton system. In a typical impinging receiver design, the jet nozzles are distributed evenly around the cylindrical absorber wall above the solar peak flux region for managing the temperature at an acceptable level. LÄS MER
2. Development of a Novel Gas Turbine Simulator for Hybrid Solar-Brayton Systems
Sammanfattning : Hybrid solar-Brayton systems utilize both solar thermal energy and supplementary renewable fuels to provide controllable and dispatchable power output, which renders them a promising way to meet the growing energy demand and reduce the carbon footprints. However, existing testing facilities for key components in such hybrid systems often fail to accomplish the testing requirements, hence impeding the improvement of the renewable energy share and the overall efficiency. LÄS MER
3. Joint Pose and Radio Channel Estimation
Sammanfattning : This thesis investigates the combination of pose and radio channel estimation. Pose is the knowledge of the position and orientation of a device whereas the radio channel describes the transmission medium between radio transmitters and receivers. LÄS MER
4. Multiple Antenna Terminals in Realistic Environments - A Composite Channel Modeling Approach
Sammanfattning : For evaluation of specific antenna arrangements in wireless communication systems we need physical channel models that take into account also the directional domain of the propagation channel. In this thesis we investigate, validate and propose a practical approach to wireless channel modeling and, particularly, to mobile communication systems. LÄS MER
5. Signal Processing Aspects of Massive MIMO and IRS-Aided Communications
Sammanfattning : The data traffic in cellular networks has grown at an exponential pace for decades. This trend will most probably continue in the future, driven by new innovative applications. One of the key enablers of future cellular networks is the massive MIMO technology, and it has been started to be commercially deployed in many countries. LÄS MER