Essays about: "Jet Speed"

Showing result 1 - 5 of 48 essays containing the words Jet Speed.

1. 1. The Impact of Global Warming on Wind Power Potential in the Greater Horn of Africa

   University essay from Göteborgs universitet/Institutionen för geovetenskaper

   Author : Bromwel Apondi; [2023-08-17]
   Keywords : Near-surface wind speed; the Greater Horn of Africa; ERA5; Wind power density; CORDEX-Africa;

   Abstract : The wind speed variability and wind power potential in the Greater Horn of Africa is analyzed in this study to fill a knowledge gap regarding if wind power can be used more as a source of energy for the region. This is investigated based on reanalysis data from ERA5, observed wind speeds, CORDEX-Africa regional climate models (RCMs) for future projections and a literature review. READ MORE

3. 2. A numerical comparison of the thermoacoustics for different equivalence ratios for n-dodecane using LES

   University essay from Lunds universitet/Institutionen för energivetenskaper

   Author : Björn Jarfors; [2023]
   Keywords : Computational Fluid Dynamics; Bluff-body stabilised flames; Large Eddy Simulation; Thermoacoustics; Acoustics; NEUMANN Project; Jet engines; Aero engines; Airplanes; Combustion; Numerics; Technology and Engineering;

   Abstract : Klimatförändringarna påverkar vår värld och det behövs ett mer hållbart samhälle. Flygindustrin är i behov av förändring, men flygmotorer är mycket komplexa och tar tid att utveckla. Termoakustiska instabiliteter har kraften att förstöra en motor, men också att minska miljöpåverkan. READ MORE

4. 3. Oil Autonomy of a Turbojet

   University essay from KTH/Flygdynamik

   Author : Florian Steiner; [2022]
   Keywords : Fluid Mechanics; Turbojet; Oil circuit; Fluid Mekanik; Turbojet; Oljekrets;

   Abstract : The oil circuit of a jet engine is required to lubricate and cool mechanical parts. The oil is pumped from the oil tank and flows through heat exchangers. Then it is injected on the bearings for lubrication and cooling, before being scavenged at the bottom of the sumps and finally flows back to the oil tank. READ MORE

5. 4. Analysis of High and Low Rossby Wave Phase Speed Events Over Northern Mid-Latitudes

   University essay from Uppsala universitet/Luft-, vatten- och landskapslära

   Author : Emma Rosengren; [2022]
   Keywords : Rossby waves; phase speed; atmospheric blocking; storm track; windstorms; Rossbyvågor; fashastighet; atmosfärisk blockering; lågtrycksbana; vindstormar;

   Abstract : The large-scale, mid-latitude circulation in the upper troposphere is dominated by Rossby waves. The jet stream flows along the wave structure and surface cyclones can be found ahead of the troughs of the waves, propagating eastward. READ MORE

6. 5. Comparing different methods of measuring particle size for pharmaceutical excipients

   University essay from Lunds universitet/Livsmedelsteknik och nutrition (master)

   Author : Jiawen Wang; [2022]
   Keywords : particle size; comparison; Malvern analysis; Qicpic analysis; Pharmaceutical technology; Technology and Engineering;

   Abstract : In pharmaceutical science, particle size is one of the most fundamental parameters of materials, but different particle-sizing analysis methods lack a uniform standard for measuring irregular particle size, making it difficult to compare the accuracy and applicability of different particle-sizing analysis methods. Experiments on excipients used in pharmaceuticals are carried out in this paper by laser diffraction analysis (Malvern wet and dry), dynamic image analysis (Qicpic), and microscopic methods (Qicpic, SEM, and light microscopy) to determine the applicability and limitations of each method, as well as to clarify their advantages and disadvantages. READ MORE