Search for dissertations about: "engine efficiency"
Showing result 21 - 25 of 332 swedish dissertations containing the words engine efficiency.
-
21. Characterization of the Combustion of Light Alcohols in CI Engines : Performance, Combustion Characteristics and Emissions
Abstract : Alternative fuels for combustion engines are becoming increasingly popular as society is pushing to phase out fossil energy to reduce CO2 emissions. The compression ignition (CI) engine has a high overall efficiency which makes it a valuable option for the transport fleet, despite the well known NOx and soot pollutants it emits. READ MORE
-
22. Modelling of IC-Engine Intake Noise
Abstract : Shorter product development cycles, densely packed engine compartments and intensified noiselegislation increase the need for accurate predictions of IC-engine air intake noise at earlystages. The urgent focus on the increasing CO2 emissions and the efficiency of IC-engines, aswell as new techniques such as homogeneous charge compression ignition (HCCI) mightworsen the noise situation. READ MORE
-
23. Biomass and Natural Gas Hybrid Combined Cycles
Abstract : Biomass is one of the main natural resources in Sweden.Increased utilisation of biomass for energy purposes incombined heat and power (CHP) plants can help the country meetits nuclear phase-out commitment. READ MORE
-
24. On the Analysis of Energy Efficient Aircraft Engines
Abstract : Aero engine performance analysis is highly multidimensional using various measures of component performance such as turbomachinery and mechanical efficiencies, and pressure loss coefficients. Using conventional performance analysis, relying on only the laws of thermodynamics, it is possible to understand how the performance parameters affect the component performance, but it is difficult to directly compare the magnitude of various loss sources. READ MORE
-
25. Challenges for end-use energy efficiency
Abstract : The scientific community has reached close to a consensus that anthropogenic emissions of greenhouse gases are causing a change of the global climate. These emissions arise foremost from the burning of fossil fuels, and secondly from land use change. READ MORE