Sökning: "low NOx"
Visar resultat 1 - 5 av 203 avhandlingar innehållade orden low NOx.
1. An Investigation of Low Temperature Combustion Using high Levels of EGR
Sammanfattning : The diesel engine offers good fuel economy and generates low carbon dioxide (CO2) emissions, but it is also a source of undesirably high particulate matter (PM) and nitrogen oxide (NOx) emissions, which are subject to increasingly strict legislative limits because of their adverse effects on the environment and human health. Thus, in recent years, several combustion concepts have been developed to meet future legislation requirements, one of which is Low Temperature Combustion (LTC) using high levels of EGR (Exhaust Gas Recycling). LÄS MER
2. NOx reduction with dimethyl ether in lean exhaust
Sammanfattning : There is a growing concern worldwide about the increase in anthropogenic greenhouse gas emissions, particularly carbon dioxide (CO2) from the combustion of fossil fuels. Vehicles with internal combustion engines contribute significantly to these emissions, which has led to an increased demand for engines running on alternative (non-fossil) fuels. LÄS MER
3. Low temperature CO oxidation on supported platinum and cobalt oxide catalysts
Sammanfattning : .... LÄS MER
4. Low Temperature Combustion in a Heavy Duty Diesel Engine
Sammanfattning : In recent years, there have been major efforts to reduce engine emissions and fuel consumption. The studies described in this thesis were conducted with the aim of identifying methods for reducing harmful engine-out emissions of soot and nitrogen oxides (NOx) under high load without increasing fuel consumption. LÄS MER
5. Air pollution and dementia in a low exposure setting : the role of noise, olfaction, and theapoe gene
Sammanfattning : Previous research indicates an association between air pollution exposure, and risk of dementia. Still, a number of factors that may play a role in this association remain to be explored. LÄS MER