Search for dissertations about: "Longcheng Liu"
Showing result 6 - 10 of 10 swedish dissertations containing the words Longcheng Liu.
-
6. Biomass to Biofuel : Syngas Cleaning and Biomass Feedstock
Abstract : This thesis builds around the idea of a biofuel production process that is comprised of biomass production, biomass gasification, gas cleaning, and fuel production. In this work, we specifically looked into H2S removal as a part of cleaning the producer gas and flocculation of microalgae which is involved in the harvesting of microalgae after biomass production. READ MORE
-
7. Solute Transport in Fractured Rocks : The Effect of Stagnant Water Zones and Velocity Dispersion
Abstract : The focus of this thesis is on the development of new models to improve our understanding of radionuclide transport in the repository “far-field” in fractured rocks. The proposed models contribute to the channel network concept and describe the recently developed models with stagnant water zones (STWZs) and channels with variable aperture allowing to consider their possible impacts on the overall transport of radionuclides in fractured rocks. READ MORE
-
8. A weighted correlation approach of the density functional theory for an inhomogeneous fluid at an interface
Abstract : This doctoral thesis presents a newly developed density functional theory (DFT), i.e., the weighted correlation approach (WCA), to study the structural and thermodynamic properties of an inhomogeneous fluid at an interface. READ MORE
-
9. Water density impact on water flow and mass transport in rock fractures
Abstract : One way of taking care of spent nuclear fuel is to place it in a geological repository. In Sweden, a three-barrier system is planned. The system is based on encapsulating the fuel in copper canisters. These are surrounded by bentonite clay and buried under 500 m of bedrock. READ MORE
-
10. Capacitive Mixing for Extracting Concentration Gradient Energy
Abstract : Capacitive mixing (CapMix) is a renewable method of extracting energy from the salinity gradient energy (SGE) between seawater and freshwater. The classical CapMix systems using solid electrodes generate electricity by periodically circulating seawater and freshwater into the CapMix system. READ MORE