Sökning: "RNG"
Visar resultat 1 - 5 av 8 avhandlingar innehållade ordet RNG.
1. Numerical Investigation of Turbulent Fluid Flow and Heat Transfer in Complex Ducts
Sammanfattning : Th need for a reliable and reasonable accurate turbulence model without specific convergence problem for calculating duct flows in industrial applications has become more evident. In this study a general computational method has been developed for calculating turbulent quantities in any arbitrary three dimensional duct. LÄS MER
2. A Ventilation Strategy Based on Confluent Jets : An Experimental and Numerical Study
Sammanfattning : This study presents air distribution systems that are based on confluent jets; this system can be of interest for the establishment of indoor environments, to fulfill the goals of indoor climate and energy-efficient usage. The main objective of this study is to provide deeper understanding of the flow field development of a supply device that is designed based on wall confluent jets and to investigate the ventilation performance by experimental and numerical methods. LÄS MER
3. Side-Channel Analysis of Post-Quantum Cryptographic Algorithms
Sammanfattning : Public key cryptographic schemes used today rely on the intractability of certain mathematical problems that are known to be efficiently solvable with a large-scale quantum computer. To address the need for long-term security, in 2016 NIST started a project for standardizing post-quantum cryptography (PQC) primitives that rely on problems not known to be targets for a quantum computer, such as lattice problems. LÄS MER
4. Study of the reduction of particle emissions and borate black liquor gasification in bioenergy systems
Sammanfattning : The use of biofuel for district heating and for electricity generation is expected to increase consistently in the coming decades due to the neutral impacts on the greenhouse gases. Domestic wood boilers are first studied in this thesis. The particle emissions from these boilers are high and encounter health problems. LÄS MER
5. Experimental and Numerical Investigations of Confluent Round Jets
Sammanfattning : Unconfined multiple interacting confluent round jets are interesting from a purely scientific point of view, as interaction between neighboring jets brings additional complexity to the flow field. Unconfined confluent round jets also exist in various engineering applications, such as ventilation supply devices, sewage disposal systems, combustion burners, chemical mixing or chimney stacks. LÄS MER