Sökning: "Exhaust gases"

Visar resultat 1 - 5 av 96 uppsatser innehållade orden Exhaust gases.

1. 1. Application of Fourier Transforms to time-resolved ambient pressure spectroscopy operando studies of CO oxidation over Pt(111)

   Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Synkrotronljusfysik

   Författare :Grigore-Leon Ratiu; [2024]
   Nyckelord :Physics and Astronomy;

   Sammanfattning : The study of heterogeneous catalysis has important implications in increasing the efficiency of industrial processes and in reducing the emissions of greenhouse gases from sources such as automobiles. A reaction with high industrial relevance is the oxidation of CO on noble metal catalysts. LÄS MER

3. 2. Mäta HRR från Li-jonbatterier med hjälp av OCC (oxygen consumption calometry) och andra metoder

   Kandidat-uppsats, Lunds universitet/Avdelningen för Brandteknik

   Författare :Olof Skyllberg; [2023]
   Nyckelord :Litium-jon batteri; Termisk rusning; Oxygen consumption calorimetry OCC ; Sensible enthalpy rise approach SERA ; effektutveckling. Lithium-ion batteries; Thermal runaway; Heat release rate.; Technology and Engineering;

   Sammanfattning : One of the most important parameters to measure in the fire discipline is the heat release rate (HRR). Therefore it is very important that these measurements are accurate and as correct as possible. The most common method for measuring heat release rate of fires is the OCC method (oxygen consumption calorimetry). LÄS MER

4. 3. Calibration of the Measurement System for Methane Pyrolysis in Rocket Nozzle Cooling Channels

   Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

   Författare :Jennifer Ly; [2023]
   Nyckelord :Correlational method; gas analysis; real time measurements; speed of sound; thermal conductivity; methane pyrolysis; rocket nozzle cooling; Korrelationsmetod; gasanalys; mätningar i real tid; ljudhastighet; värmeledningsförmåga; metanpyrolys; kylning av raketmunstycken iv;

   Sammanfattning : Methane-based rocket propellant is gaining traction as a green technology with advantages in sustainability, cost-effectiveness, and performance. However, under high temperatures found in rocket nozzle cooling channels, methane can undergo thermal decomposition known as methane pyrolysis, resulting in the generation of hydrogen and solid carbon. LÄS MER

5. 4. Accelerating the Green Transition - Investigating the Feasibility of E-Fuel Production Connected to a CHP Plant

   Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

   Författare :Johanna Scholtz; Alice Maillard; [2023]
   Nyckelord :CCU; CHP plant; e-fuels; e-methane; e-methanol; e-kerosene; Technology and Engineering;

   Sammanfattning : The overall purpose of this thesis is to investigate the feasibility of producing electrofuels from CO2 and H2 in connection to a CHP plant equipped with carbon capture technology. This is done by investigating the production of e-methane, e-methanol and e-kerosene from captured CO2 and H2 produced from electrolysis. LÄS MER

7. 5. Characterisation of Ionic Liquid doped Polybenzimidazole Membranes for Application in High-Temperature Proton Exchange Membrane Fuel Cells

   Master-uppsats, Lunds universitet/Kemiteknik (CI)

   Författare :Adam Jacobsson Trönndal; [2023]
   Nyckelord :Fuel cells; Phosphoric acid; Polybenzimidazole; PA-PBI; Ionic liquid; IL; High temperature proton exchange membrane fuel cell; HT-PEMFC; Electrochemical impedance spectroscopy; EIS; IL-PBI; Chemical engineering; Technology and Engineering;

   Sammanfattning : In this study four membranes were tested and evaluated against each other for use in high-temperature proton exchange membrane fuel cell (HT-PEMFC) applications. A phosphoric acid (PA) doped polybenzimidazole (PBI) membrane, was used as a reference as the current state-of-the-art. LÄS MER