Sökning: "exhaust emission"
Visar resultat 1 - 5 av 88 uppsatser innehållade orden exhaust emission.
1. Exhaust system for hydrogen fuelled combustion engines: effect of high-water content on the SCR vanadium catalyst
Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)Sammanfattning : Transportation represents a key secot in the journey towards a greener future, and alternative solutions are needed to meet the decarbonaisation need. Hydrogen internal combustion engines could represent a solution in the short-term, allowing for emission reduction with limited modification to the already existing traditional combustion engines. LÄS MER
2. Acoustic Characterization of Catalyst
Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)Sammanfattning : The WHO has set a sound level threshold of 55 dB, beyond which noise is considered harmful to humans when exposed for an extended period of time. It is, however, estimated by the European Environmental Agency that over 110 million people in the EU are regularly exposed to levels of traffic noise above 55 dB. LÄS MER
3. Characterisation of Ionic Liquid doped Polybenzimidazole Membranes for Application in High-Temperature Proton Exchange Membrane Fuel Cells
Master-uppsats, Lunds universitet/Kemiteknik (CI)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
4. Particulate matter analysis from engine outlet in heavy-duty diesel vehicles : A study of soot reactivity, morphology and ash-to-soot ratio from the outlet of 6-cylinder and 8-cylinder diesel engines.
Master-uppsats, KTH/KemiteknikSammanfattning : De ökande luftföroreningarna i Europa är ett allvarligt miljöproblem, och vägtransporterna är en av de största orsakerna till detta. För att ta itu med detta problem och uppfylla nya utsläppskrav måste efterbehandlingssystemen för avgaser förbättras. LÄS MER
5. Life cycle analysis of retrofit solutions for brake emission
Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)Sammanfattning : This Master Thesis project is focused on Life Cycle Analysis (LCA) of retrofit solutions for brake emission and the comparison of each solution. Background research was performed to check possible solutions to the Particulate Matter (PM) problem that non-exhaust emissions contribute to. LÄS MER