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Visar resultat 16 - 20 av 946 avhandlingar som matchar ovanstående sökkriterier.
16. Environmental, health and safety assessment of phase-change solvents for post combustion CO2 capture
Sammanfattning : A novel class of solvents exhibiting liquid-liquid phase separation upon reaction with CO2 and/or change in temperature, promises significant reduction of energy requirement of the post combustion capture by chemical absorption. However, proceeding to a large-scale application of novel materials requires holistic evaluation of the aspects related to human health, safety, and environmental impacts currently missing for phase-change solvent alternatives. LÄS MER
17. Insights from combining Action Research and System Dynamics when facilitating change and improvement processes in healthcare
Sammanfattning : BACKGROUND Healthcare is a complex system with multi-professional staff and multiple patient care pathways. Time pressure and minimal margins for error makes it challenging to implement new policies or procedures, no matter how desirable. Changes in healthcare also requires the participation of the multi-professional staff. LÄS MER
18. Design of Thermal Energy Storage with Phase Change Materials - Investigations within Material, Device and System Scale
Sammanfattning : The addition of a thermal energy storage (TES) into a process allows the operator to store and release thermal energy on demand. This increased process flexibility leads to potential benefits such as shifting energy demand from peak to off-peak hours. LÄS MER
19. On the Design Considerations for Thermal Energy Storage with Phase Change Materials: Material Characterization and Modelling
Sammanfattning : 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. LÄS MER
20. Numerical study of interface dynamics and phase change
Sammanfattning : Multi-phase fluid flows are ubiquitous in natural phenomena and different industrial applications such as in food industry, the medical sector, heat exchangers, power generation systems, to name a few. Understanding the underlining physics of multi-phase flows proved to be a challenging task due to presence of sophisticated dynamics, including the evolution of the interface between any pair of phases, thermodynamics and possibility of phase change, interactions between the fluid phases and a solid phase, etc. LÄS MER