Sökning: "Magnetic Refrigeration"
Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Magnetic Refrigeration.
Sammanfattning : Refrigeration plays a crucial role in many different sectors and consumes about 17% of the electricity produced globally. This significant energy consumption implies large share of refrigeration in primary energy consumption and other environmental impacts. LÄS MER
Sammanfattning : This thesis comprises three papers concerning lubricant rheology in two different applications. The first two papers concern refrigeration systems and the importance of lubricant rheology in elastohydrodynamic lubrication in refrigerating compressors. LÄS MER
3. Magnetic Materials for Cool Applications : Relations between Structure and Magnetism in Rare Earth Free Alloys
Sammanfattning : New and more efficient magnetic materials for energy applications are a big necessity for sustainable future. Whether the application is energy conversion or refrigeration, materials based on sustainable elements should be used, which discards all rare earth elements. LÄS MER
Sammanfattning : Demands for new, energy-efficient appliances have greatly increased in response to our growing need for a more environmentally friendly society. Magnetic refrigeration is a technique that utilizes the magnetocaloric effect, with possible energy savings of up to 30% compared to commercial gas compression refrigerators. LÄS MER
Sammanfattning : Energy production, storage and efficient usage are all crucial factors for environmentally sound and sustainable future technologies. One important question concerns the refrigeration industry, where the energy efficiency of the presently used technologies is at best 40% of the theoretical Carnot limit. LÄS MER