Sökning: "heat transfer in the ground"
Visar resultat 11 - 15 av 22 avhandlingar innehållade orden heat transfer in the ground.
11. Reduction of prime energy consumption in the Middle East by GSHP systems
Sammanfattning : The global energy consumption, which increased ~84% during last thirty years, exceeded 1.4.1011 MWh in 2008. It is projected to increase another ~39% until 2030. LÄS MER
12. Use of thermosyphons in a subarctic climate
Sammanfattning : In frozen ground, climatic changes and thermal disturbance might cause thawing and degradation of ground previously frozen. Foundations built on frozen ground might be destroyed in a matter of a few seasons. These problems are mostly pronounced in permafrost regions, but also exist in regions with more moderate climates. LÄS MER
13. Utilizing solar energy for anti-icing road surfaces using hydronic heating pavement with low temperature
Sammanfattning : During summer, the surface temperature of an asphalt road pavement can rise up to 70°C due to absorbed solar radiation. The high temperature degrades the performance of the asphalt concrete by accelerating the thermal oxidation and plastic deformation, especially under heavy traffic loads. LÄS MER
14. Linking water and permafrost dynamics
Sammanfattning : The extent and dynamics of permafrost are tightly linked to the distribution and movement of water in arctic landscapes. As the Arctic warms more rapidly than the global average, profound changes are expected in both permafrost and hydrology; however, much is still not known about the interactions between these two systems. LÄS MER
15. Quantum Coherence for Light Harvesting
Sammanfattning : Almost all life on Earth depends on the products of photosynthesis — the biochemical process whereby solar energy is stored as chemical-rich compounds. The energy of captured photons is transferred through a network of pigment-protein complexes towards the reaction center. LÄS MER
