Sökning: "Transient behaviours"
Visar resultat 1 - 5 av 11 avhandlingar innehållade orden Transient behaviours.
1. Transient Spray Mode Fuel Injection
Sammanfattning : This research examines the pivotal role of transient fuel spray in internal combustion engines, primarily focusing on their influence on dual-fuel (DF) engines. In the case of dual-fuel (DF) engines functioning in a gas mode, the controlling of the primary fuel’s ignition is usually managed through the direct injection of liquid pilot fuel. LÄS MER
2. ON THE EFFICIENCY OF DISPLACEMENT VENTILATION, with Particular Reference to the Influence of Human Physical Activity
Sammanfattning : The efficiency of room ventilation by the displacement principle was studied with respect to some influential factors, in particular that of physical activity. The study was experimental and performed in two full-scale test rooms, one of office-size and one of classroom-size. LÄS MER
3. Principles and Models of Solid Fuel Combustion
Sammanfattning : Combustion of solid fuels stands for a substantial part of the heat and power production in the world. In this thesis different aspects related to the thermochemical conversion of solid fuels in fluidized and fixed beds are treated, such as: the combustion temperature of a fuel particle related to the surrounding temperature in a fluidized bed combustor (FBC); the fuel loading in a FBC; a transient description of the conversion of non-spherical fuel particles; the thermochemical properties and composition of volatiles released from wood; the thermal conductivity of wood during different stages of conversion; the modelling of a grate furnace; the general combustion behaviour of a fixed bed on a reciprocating or a travelling grate; and finally, the design and construction of experimental units for investigation of combustion in a fixed bed. LÄS MER
4. On the efficiency of displacement ventilation
Sammanfattning : The efficiency of room ventilation by the displacementprinciple was studied with respect to some influential factors,in particular that of physical activity. The study wasexperimental and performed in two full-scale test rooms, one ofoffice-size and one of classroom-size. LÄS MER
5. Resilience, mental health, and exposure to violence among individuals with former or current experiences of being a refugee in Sweden : quantitative and qualitative studies
Sammanfattning : Studies indicate that individuals with current or former experiences of being a refugee are more likely to have experienced adverse events, like violence, and face mental health challenges in their host countries. After arrival in host countries, people with refugee experiences often confront various post-migration adversities like discrimination. LÄS MER
