Search for dissertations about: "thesis on thermal engineering"
Showing result 1 - 5 of 1299 swedish dissertations containing the words thesis on thermal engineering.
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1. Distributed thermal response tests New insights on U-pipe and Coaxial heat exchangers in groundwater-filled boreholes
University dissertation from Stockholm : KTH Royal Institute of TechnologyAbstract : U-pipe Borehole Heat Exchangers (BHE) are widely used today in ground source heating and cooling systems in spite of their less than optimal performance. This thesis provides a better understanding on the function of U-pipe BHEs and Investigates alternative methods to reduce the temperature difference between the circulating fluid and the borehole wall, including one thermosyphon and three different types of coaxial BHEs. READ MORE
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2. Mid-infrared photonic devices for on-chip optical gas sensing
University dissertation from KTH Royal Institute of TechnologyAbstract : Gas detection is crucial in a wide range of fields and applications, such as safety and process control in the industry, atmospheric sciences, and breath diagnostics. Optical gas sensing offers some key advantages, compared to other sensing methods such as electrochemical and semiconductor sensing: high specificity, fast response, and minimal drift. READ MORE
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3. On the Design Considerations for Thermal Energy Storage with Phase Change Materials: Material Characterization and Modelling
University dissertation from ; Chalmers tekniska högskola; GothenburgAbstract : Integrating thermal energy storage (TES) technologies to a process enables storing and releasing thermal energy on demand. Depending on the implementation, this may lead to economic and ecological improvements, e.g. by shifting the peak demand to off-peak hours or by increasing the share of utilized renewable energy. READ MORE
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4. Thermal impact on rolling contact fatigue of railway wheels
University dissertation from ; Chalmers tekniska högskola; GothenburgAbstract : Rolling contact fatigue (RCF) is a very common and costly damage mechanism for rails and wheels. This thesis investigates the influence of combined thermal and mechanical loading on RCF of railway wheels on the basis of numerical predictions. READ MORE
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5. Smart Energy Grids – Utilization of Space Heating Flexibility
University dissertation from ; Chalmers tekniska högskola; GothenburgAbstract : Buildings are the largest energy-using sector in the world. Since the generation of energy is highly associated with greenhouse gas emissions, contributing to climate change, there is a large focus on reducing energy use in buildings. READ MORE
