Sökning: "porösa medier"

Hittade 3 uppsatser innehållade orden porösa medier.

1. 1. Performance Evaluation of a High Temperature Borehole Thermal Energy Storage Under Influence of Groundwater Flow

   Master-uppsats, KTH/Energiteknik

   Författare :Max Hesselbrandt; [2021]
   Nyckelord :;

   Sammanfattning : Recent years have seen a growing interest in large-scale high-temperature borehole thermal energy storage (HT-BTES) as a means to store industrial waste heat and solar energy between the seasons. A profound understanding and characterization of the thermal and hydraulic processes involved in such systems is required for the optimal design as well as for environmental assessments of the storage. LÄS MER

3. 2. Fate and Transport of Nano-TiO2 in Saturated Porous Media: Effect of pH, Ionic Strength and Flow Rate

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Tsegay Mengestab; [2015]
   Nyckelord :Nanoparticles; TiO2; saturated porous media; transport; DLVO theory;

   Sammanfattning : Titanium dioxide nanoparticles are widely used in a variety of products, such as pigments, paints, paper, plastics, cosmetics, nano-fibers, food coloring and photovoltaic cells, and the industry is growing at anexponential rate. It is believed that by 2025, 2.5 million tons of nano-TiO2 will be manufactured annually. LÄS MER

4. 3. Numerical and experimental study of the fluid flow in porous medium in charging process of stratified thermal storage tank

   Master-uppsats, KTH/Tillämpad termodynamik och kylteknik

   Författare :Anders Berg; [2013]
   Nyckelord :heat storage; thermal storage; storage tank; stratified; stratification; porous media; värmelagring; porösa medier;

   Sammanfattning : In order to increase the efficiency of an adsorption heat pump system, a stratified thermal heat storage can be used to enable regeneration of heat between the different phases of the process. It’s crucial to avoid mixing and to keep layers intact inside the storage tank. LÄS MER