Essays about: "termiska"

Showing result 21 - 25 of 257 essays containing the word termiska.

1. 21. Design of a vacuum chamber for cathode testing and low power Hall Effect Thrusters : Collaborative project with OHB Sweden AB

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Andrea Martinez Sanz; [2023]
   Keywords : Vacuum chamber; adaptability; hollow cathode test; fluid ground support equipment; low power Hall Effect Thrusters test; Vakuumkammare; anpassningsförmåga; ihålig katod testa; flytande markstödutrustning; låg effekt Hall Effect Thrusters testa;

   Abstract : Testing of hardware to be used in space sometimes involves using vacuum chambers. The need to test hollow cathodes, used as neutralizers for some Electric Propulsion Thrusters, and low power Hall Effect Thrusters at OHB Sweden requires a vacuum chamber to be upgraded. READ MORE

3. 22. Phonons in 1-D Graphene Nanoribbons Probed with Raman Spectroscopy : Unraveling Fundamental Properties in 9-atom-wide Graphene Nanoribbons

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Angel Victor Labordet Alvarez; [2023]
   Keywords : 9-armchair graphene nanoribbons 9-AGNRs ; polarization Raman Spectroscopy PRS ; temperature-dependent Raman spectroscopy; thermal sensitivity; thermal stability; Grüneisen parameter χ ; anharmonicities; vibrational modes G; D; RBLM .; 9-armchair grafen nanoribbons 9-AGNRs ; polarisation Raman spektroskopi PRS ; temperaturberoende Raman spektroskopi; termisk känslighet; termisk stabilitet; Grüneisen parameter χ ; anharmoniciteter; vibrationslägen G; D; RBLM .;

   Abstract : This report employs advanced Raman spectroscopy techniques to investigate the fundamental properties of 9-AGNRs comprehensively. It is divided into two main sections addressing distinct aspects of 9-AGNR behavior. In the first section, Polarization Raman spectroscopy (PRS) probes phonon mode symmetries in 9-AGNRs. READ MORE

4. 23. MODELLING OF HEAT TRANSFER OF RAILWAY SWITCH HEATING

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Siddharth Suresh Sumathi; [2023]
   Keywords : Conjugate Heat transfer analysis; transient analysis; CFD; insulation; measurement data uncertainties.; Konjugat Värmeöverföringsanalys; transientanalys; CFD; isolering; mätdata osäkerheter.;

   Abstract : Switches and crossings are vital components of the railway network. Obstacles to the smooth functioning of these components could result in delays and network traffic. Given the geographical location of Sweden, snow is one of the major obstacles for the switches. READ MORE

5. 24. Techno-economic Assessment of Carbon Capture from Low Concentration Streams

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Prithvi Kiran Joshi; [2023]
   Keywords : Carbon capture; industrial emissions; low concentration; MEA; Benfield; absorption; Immobilised Amine; adsorption; Kolavskiljning; industriella utsläpp; låg koncentration; MEA; Benfield; Absorption; Immobiliserad amin; Adsorption vi;

   Abstract : Investments in carbon capture from industrial emissions have been on the rise in recent years, having reached over $200 million in 2021 as compared to 2015’s $13 million. The Paris Agreement, signed by 196 parties globally in 2015, is purported to be the primary driver for this, with its ambitious goal of limiting global surface temperature rise to 1. READ MORE

6. 25. Modelling and Simulation of Hydrogen Electrolyzers for Power System Applications

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Javier Vinuelas Ferrando; [2023]
   Keywords : ;

   Abstract : The rapid increase in the share of intermittent renewables in the energy mix is exacerbating the complexity of the grid stability. To facilitate the inclusion of these green technologies and achieve the climate targets set by the EU, the generation and storage of hydrogen through electrolysis may be crucial. READ MORE