Sökning: "Heat gas recirculation"

Visar resultat 1 - 5 av 11 uppsatser innehållade orden Heat gas recirculation.

1. 1. Development of Elastic Mechanism for actuation of Valve

   Master-uppsats, KTH/Maskinkonstruktion

   Författare :Nidhi Menon; [2023]
   Nyckelord :Compliant mechanism; Engine; HGR valve; Heat gas recirculation; Eftergivlig mekanism; HGR-ventil; läckage; varmgasåtercirkulationsventilen;

   Sammanfattning : The HGR valve, or hot gas recirculation valve, is an essential component of modern internal combustion engines. Its main function is to reduce emissions of nitrous oxide (NOx), which is a harmful pollutant produced during combustion. LÄS MER

3. 2. IMPLEMENTATION OF OXYFUEL COMBUSTION IN A WASTE INCINERATION CHP PLANT : A Techno-Economic Assessment

   Uppsats för yrkesexamina på avancerad nivå, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

   Författare :Mostafa Saleh; Anton Hedén Sandberg; [2021]
   Nyckelord :CCS; Oxyfuel Combustion; Carbon Capture; Gas Separation Techniques; Waste Combustion; Cost Assessment of CCS; ASU; CPU; Wet-FGR; Dry-FGR;

   Sammanfattning : Global energy demand is predicted to rise in the coming decades, necessitating a shift to renewable energy sources to mitigate greenhouse gas emissions. However, due to the inability to supply renewable energy around the clock, it is estimated that only by adding an important technology, carbon capture and storage (CCS), it could be possible to reduce 80% of the 1990s greenhouse gas emissions. LÄS MER

4. 3. Optical Analysis of the Hydrogen Cooling Film in High Pressure Combustion Chambers

   Master-uppsats, Luleå tekniska universitet/Rymdteknik

   Författare :Fabian Weber; [2019]
   Nyckelord :optical; analysis; hydrogen; h2; cooling; film; high; pressure; combustion; chambers; rocket; engine; thrust; experimental; oh*; shadowgraphy; flame; emission; lox; liquid; bipropellant; cryogenic; efficiency; heat; flux;

   Sammanfattning : For performance optimisation of modern liquid cryogenic bipropellant rocket combustion chambers, one component which plays an important role in reducing the wall side heat flux, is the behaviour of the cooling film. At the Institute of Space Propulsion of the German Aerospace Center (DLR) in Lampoldshausen, hot test runs have been performed using the experimental combustion chamber BKM, to investigate the wall side heat flux which is -- among other factors -- dependent on cooling film properties. LÄS MER

5. 4. CHP process evaluation, optimization and troubleshooting in OpenModelica

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

   Författare :HANNES WISTRAND; [2017]
   Nyckelord :;

   Sammanfattning : As an important part in creating a sustainable energy sector the most prevalent sources of energy production must be in the forefront of being both reliable and effective. In Sweden district heating is utilized in more than half of all households and must therefore be subject to the same scrutiny and analyses as other energy producing technologies. LÄS MER

7. 5. Utvinning av metan genom membranseparering vid förgasning av biomassa : En litteraturstudie

   M1-uppsats, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

   Författare :Emil Nilsson; [2015]
   Nyckelord :product gas upgrading; membrane separation; biomethane; glassy polymer; rubbery polymer; gasification biomass; bio-SNG production;

   Sammanfattning : The possibility to extract bio-SNG from the product gas obtained from gasification of biofuel with a pressurized, oxygen-blown CFB gasifier connected to a heat and power station using only membrane separation was theoretically investigated. Selling the methane, instead of feeding it to the plant’s turbine(s), might mean that overall profitability is increased. LÄS MER